TR201610873A2 - Household appliance having a power module with dynamically controlled switching frequency - Google Patents
Household appliance having a power module with dynamically controlled switching frequency Download PDFInfo
- Publication number
- TR201610873A2 TR201610873A2 TR2016/10873A TR201610873A TR201610873A2 TR 201610873 A2 TR201610873 A2 TR 201610873A2 TR 2016/10873 A TR2016/10873 A TR 2016/10873A TR 201610873 A TR201610873 A TR 201610873A TR 201610873 A2 TR201610873 A2 TR 201610873A2
- Authority
- TR
- Turkey
- Prior art keywords
- motor
- speed
- household appliance
- switching frequency
- frequency
- Prior art date
Links
- 238000005406 washing Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000001035 drying Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000001360 synchronised effect Effects 0.000 description 4
- 230000002441 reversible effect Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000009467 reduction Effects 0.000 description 2
- 101100181929 Caenorhabditis elegans lin-3 gene Proteins 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P6/00—Arrangements for controlling synchronous motors or other dynamo-electric motors using electronic commutation dependent on the rotor position; Electronic commutators therefor
- H02P6/14—Electronic commutators
- H02P6/16—Circuit arrangements for detecting position
- H02P6/18—Circuit arrangements for detecting position without separate position detecting elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
- D06F34/10—Power supply arrangements, e.g. stand-by circuits
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
- D06F37/304—Arrangements or adaptations of electric motors
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F25/00—Washing machines with receptacles, e.g. perforated, having a rotary movement, e.g. oscillatory movement, the receptacle serving both for washing and for centrifugally separating water from the laundry and having further drying means, e.g. using hot air
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Power Engineering (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Control Of Ac Motors In General (AREA)
Abstract
Description
TARIFNAME DINAMIK OLARAK KONTROL EDILEN ANAHTARLAMA FREKANSINA SAHIP BIR GÜÇ MODÜLÜ IÇEREN EV CIHAZI Bu bulus, dinamik olarak kontrol edilen anahtarlama frekansina sahip bir güç modülü içeren bir elektrikli eV Cihazi ile ilgilidir. DESCRIPTION DYNAMIC CONTROLLED SWITCHING HOUSEHOLD DEVICE INCLUDING A POWER MODULE WITH THE FREQUENCY This invention is a power generator with a dynamically controlled switching frequency. relates to an electrical eV Appliance containing a module.
Senkron motor, bir dönen stator manyetik akisi ve senkron frekansinda dönecek sekilde buna kilitli olan bir rotor akisina sahip olan bir elektrik motorudur. The synchronous motor will rotate at a rotating stator magnetic flux and synchronous frequency It is an electric motor having a rotor flow that is locked to it in some way.
Firçasiz DC (BLDC) motor ve firçasiz AC motor (BLAC), ikizkenar yamuk formunda ters EMF voltajina ve sinüzoidal ters EMF formuna sahip olan senkron motorlardir. Brushless DC (BLDC) motor and brushless AC motor (BLAC), trapezoidal synchronous, which has a reverse EMF voltage in the form and a sinusoidal reverse EMF form. are engines.
Senkron motorlar, dönme hareketli ev cihazlarinda, özellikle bulasik makineleri ve çamasir makinelerinde kullanilmaktadir. Örnegin, çamasir makineleri, tambur içinde, çamasirlarin yapisabildigi belirli bölgeleri hedef alarak su jetleri püskürten bir jet pompasi ve tamburun içindeki suyun tahliye edilmesini saglayan bir tahliye pompasi içerebilmektedir. Ayni sekilde, bir çamasir yikama ve/veya kurutma makinesi, bir tahliye pompasi ve yikama suyunun dolasimini saglayan bir dolasim pompasi içerebilmektedir. Synchronous motors are used in rotary household appliances, especially dishwashers. and used in washing machines. For example, washing machines, drum that sprays jets of water, targeting specific areas where laundry can stick. a jet pump and a drain to drain the water inside the drum may include a pump. Likewise, a washing and/or drying machine, a drain pump and a circulation system that circulates the washing water. may include a pump.
Teknikte bilinen vektör kontrol yöntemlerinden biri rotorun bir mikrodenetleyici tarafindan konumlandirilmasidir. Firçasiz dogru akim ve firçasiz alternatif akim motorlari kompakt yapilari ve kolay kontrol edilebilmeleri nedeniyle çesitli uygulamalarda kullanilmaktadir. Söz konusu motorlar genellikle, bir veya birden fazla rotor konum sensörü ile çalistirilmaktadrrlar. Ancak, motorun kontrolü, Hall sensörleri veya herhangi bir tür sensör kullanilmaksizin, motor sarimlarindan geçen akimdan elde edilen bilgi sayesinde motorun konumu hesaplanarak gerçeklestirilebilmektedir. One of the vector control methods known in the art is that the rotor is equipped with a microcontroller. positioned by. Brushless direct current and brushless alternating current motors are widely used due to their compact structure and easy control. used in applications. These engines are usually one or more They are operated with multiple rotor position sensors. However, control of the motor, Hall motor windings without using sensors or any kind of sensors. by calculating the position of the motor thanks to the information obtained from the passing current can be realized.
Firçasiz dogru akim motorunun sürülmesi amaciyla genellikle bir üç fazli evirici sürücü devresi kullanilmaktadir. Evirici sürücülere sahip, bir entegre güç modülü (IPM) yapisindaki tek bir pakette toplanan güç modülünde yer alan yari iletken anahtarlar MOSFET, IGBT veya benzeri tipte olabilmektedir. Güç modülündeki güç anahtarlari anahtarlama kayiplarina ve iletim kayiplarina neden olmaktadir. Usually a three-phase inverter is used to drive the brushless direct current motor. driver circuit is used. One integrated power module with inverter drivers The semiconductor in the power module collected in a single package in the (IPM) structure switches can be MOSFET, IGBT or similar type. in the power module power switches cause switching losses and conduction losses.
Iletim kayiplari temelde, bir MOSFET gibi bir güç anahtarindaki iç dirence (Rds) veya bir IGBT gibi bir güç anahtarinda olusan doyma gerilimine baglidir. Güç anahtarindan geçen akim arttiginda kayip da artmaktadir. Artan kayiplar isi ortaya çikarmakta ve güç modülünün sicakligini daha da yükseltmektedir. Anahtarlama frekansi anahtarlama kayiplari ile dogru orantilidir. Artan frekans anahtarlama kayiplarini da artirmakta, iletim kayiplari isi ortaya çikarmakta ve bunun sonucunda güç modülünün sicakligi yükselmektedir. Anahtarlama kayiplarinin azaltilmasi amaciyla, yazilim anahtarlama teknikleri içeren gelismis devre topolojileri kullanilmasi gerekmektedir. Ancak, bu da tasarlanan sistemin toplam maliyetinin artmasina neden olmaktadir. The conduction losses are basically due to the internal resistance (Rds) in a power switch such as a MOSFET. or the saturation voltage occurring in a power switch such as an IGBT. Strength As the current through the switch increases, the loss also increases. Increasing losses are revealed and raises the temperature of the power module even more. switching frequency is directly proportional to the switching losses. incremental frequency switching It also increases the losses, transmission losses create heat and As a result, the temperature of the power module rises. Switching losses advanced circuitry that includes software switching techniques in order to reduce topologies must be used. However, this also means that the designed system's total cause an increase in cost.
Ev cihazi motorlarinda, güç evirici modülünün anahtarlama elemanlarinin anahtarlama frekansinin dinamik olarak ayarlanmasi gerekebilmektedir. Bir çamasir makinesinde, seçilen yikama ve/veya kurutma çevrimine bagli olarak tambur farkli hizlarda döndürülcbilmektc ve anahtarlama frekansi çevrimin asamalarina uygun olarak degistirilebilmektedir. Sensörsüz motor kontrolünde ise, akim örnekleme çözünürlügü sensörsüz motorun kontrolünün saglanmasi için yeterli olamayabilmektedir. Anahtarlama kayiplarinin azaltilmasi amaciyla, anahtarlama frekansi motor hizina uygun olarak kontrol edilebilmekte, böylece, sensörsüz motor kontrolü yeterli bir akim örnekleme frekansi ile gerçeklestirilecek sekilde yüksek motor hizlarinda eszamanli olarak yeterince yüksek bir anahtarlama frekansi elde edilebilmektedir. güç kaynagindan güç ve kontrol sinyali alarak bir firçasiz dogru akim (BLDC) motorunun sürülmesi amaciyla kullanilan bir eviriciye, firçasiz dogru akim motorunun rotor konumunun algilanmasini ve ölçülen konum verilerini kullanarak hizinin hesaplanmasini saglayan bir rotor konum ve hiz algilama ünitesine, referans degeri ile hesaplanan hiz arasindaki farki oranlayip entegre ederek dalga genislik modülasyonunun (PWM) çalisma oranini kontrol eden bir orantili entegre kontrol ünitesine, rastlantisal sayilarin üretilmesi amaciyla kullanilan bir rastlantisal degisken üreticiye, rastlantisal sinyali kullanarak PWM frekansinin belirlenmesini saglayan bir PWM frekansi belirleme ünitesine, belirlenen frekansa göre PWM frekans periyodunu ve çalisma zamanini üreten bir PWM karsilastirma sinyali üreticiye ve PWM atimini kullanarak eviricinin anahtarlama elemanlarinin açilip kapatilmasini saglayan kapi sinyalini üreten bir kapi sinyali üreticiye sahip olan bir kompresör gürültü azaltma vasitasi açiklanmaktadir. In household appliance motors, the switching elements of the power inverter module The switching frequency may need to be adjusted dynamically. A in the washing machine, depending on the selected washing and/or drying cycle the drum can be rotated at different speeds and the switching frequency can be changed according to the stages. In sensorless motor control, current sampling resolution to control the sensorless motor. may not be sufficient. In order to reduce the switching losses, The switching frequency can be controlled in accordance with the motor speed, thus, sensorless motor control with a sufficient current sampling frequency simultaneously at high engine speeds to be performed sufficiently A high switching frequency can be achieved. a brushless direct current (BLDC) by receiving a power and control signal from the power supply Brushless direct current to an inverter used to drive a motor using the sensing of the rotor position of the motor and the measured position data a rotor position and speed sensing unit that allows the speed to be calculated, wave by proportioning and integrating the difference between the reference value and the calculated speed. A proportional integrator that controls the operating rate of the width modulation (PWM) a controller used to generate random numbers. random variable generator, using the random signal, the PWM frequency to a PWM frequency determination unit, which allows the A PWM comparison that generates the PWM frequency period and runtime according to the signal to the generator and the switching elements of the inverter using the PWM pulse. has a door signal generator that generates the door signal to open and close A compressor noise reduction means is described.
Ayrica, USZOl30438 ll sayili patent dokümaninda, bir firçasiz dogru akim motorunun tek bir sönt ile Alan Odakli Kontrolü (FOC) açiklanmaktadir. In addition, in the patent document USZOl30438 ll, a brushless direct current Describes the Field Oriented Control (FOC) of the motor with a single switch.
Bu bulus ile, anahtarlama kayiplarinin azaltilmasini saglayan ve ayni zamanda, yüksek motor hizlarinda yeterince yüksek bir anahtarlama frekansini mümkün kilarak, yeterli bir akim örnekleme frekansina sahip sensörsüz motor kontrolü elde edilmesine olanak veren bir kontrol semasi gerçeklestirilmektedir. With this invention, switching losses are reduced and at the same time, A sufficiently high switching frequency is possible at high motor speeds. Thus, sensorless motor control with a sufficient current sampling frequency can be achieved. A control chart is performed that allows
Bu bulusun amaci, sensörsüz vektör kontrolünde daha verimli bir motor isleyisi elde edilmesini saglayan, bir firçasiz dogru akim veya bir firçasiz alternatif akim motoru kontrol semasina sahip olan bir elektrikli ev cihazinin gerçeklestirilmesidir. The aim of this invention is a more efficient motor operation in sensorless vector control. a brushless direct current or a brushless alternating current of an electrical household appliance with a motor control scheme. is realization.
Bulus konusu elektrikli ev cihazi, bir DC hattina bagli bir alti anahtarli üç fazli evirici yapisindaki bir evirici güç modülü içermektedir. PWM frekansi, düsük hizlarda anahtarlama kayiplarinin azaltilmasi ve yüksek hizlarda akim örneklemesi gerçeklestirilebilmesi amaciyla elektrik motorunun çalisma durumuna uygun olarak dinamik bir sekilde degistirilmektedir. The electric household appliance of the invention is a six-switch three-phase connected to a DC line. It contains an inverter power module in inverter structure. PWM frequency, low Reduction of switching losses at high speeds and current at high speeds the working of the electric motor in order to carry out the sampling is changed dynamically according to the situation.
Ekteki sekiller yalnizca, önceki teknige göre avantajlari yukarida ana hatlariyla anlatilan ve asagida ayrintili olarak açiklanacak olan bir firçasiz dogru akim veya bir firçasiz alternatif akim motoru ve bir kontrol modülü içeren bir ev cihazinin örneklendirilmesi amaciyla verilmistir. The appended figures only outline above the advantages over the prior art. a brushless direct current or of a household appliance comprising a brushless alternating current motor and a control module. given for illustration purposes.
Sekiller, istemlerde tanimlanan koruma kapsamini sinirlandirmamaktadir ve bu bulusun açiklama kismindaki teknik açiklamaya basvurulmadan, söz konusu istemlerde tanimlanan kapsami yorumlama amaciyla tek baslarina kullanilmamalidir. The figures do not limit the scope of protection defined in the claims and this without reference to the technical explanation in the explanation part of the invention, alone for the purpose of interpreting the scope defined in the claims should not be used.
Sekil 1, yüksek gerilim ve düsük gerilim güç anahtarlarina sahip teknikte bilinen bir evirici modülü göstermektedir. Figure 1 shows the known art with high-voltage and low-voltage power switches. represents an inverter module.
Sekil 2, bulusun bir uygulamasinda, bir firçasiZ dogru akim veya bir firçasiz alternatif akim motorunun sensörsüz kontrolünü saglayan devre semasini göstermektedir. Figure 2, in one embodiment of the invention, is a brushless direct current or a brushless Circuit diagram providing sensorless control of alternating current motor. shows.
Sekillerdeki parçalar tek tek numaralandirilmis olup, bu numaralarin karsiligi asagida verilmistir: 1) Güç modülü 2) A Fazi 3) B Fazi 4) C Fazi ) Serbest geçis diyodu 7) Alçak gerilim güç anahtari Bulus konusu elektrikli ev cihazi, özellikle bir çamasir makinesi, bir bulasik makinesi, bir kurutma makinesi veya bir kurutmali çamasir makinesi, örnegin bir çamasir makinesinde, çamasirlarin yapisabildigi belirli bölgeler hedeflenecek sekilde tamburun içine su jetleri püskürtülmesini saglayan bir jet pompasinin sürülmesini, tamburun içindeki suyun tahliye edilmesini saglayan bir tahliye pompasinin sürülmesini veya bir tahliye pompasinin ve suyun dolastirilmasi amaciyla bir dolasim pompasinin sürülmesini saglayan bir firçasiz dogru akim (BLDC) motoru veya bir firçasiz alternatif akim (BLAC) motoru yapisinda olan bir elektrik motoru içermektedir. The parts in the figures are numbered one by one and the corresponding numbers are given below: 1) Power module 2) Phase A 3) Phase B 4) Phase C ) Free pass diode 7) Low voltage power switch The subject of the invention is the household electrical appliance, in particular a washing machine, a dishwasher machine, a tumble dryer or a washer-dryer, e.g. a The washing machine will target specific areas where laundry can stick a jet pump that allows jets of water to be sprayed into the drum. a drain that allows the water in the drum to be driven pump or circulating a drain pump and water. a brushless direct current that drives a circulation pump for (BLDC) motor or a brushless alternating current (BLAC) motor contains an electric motor.
Bir elektrikli ev cihazi, üç fazli (A fazi, B fazi ve C fazi, sirasiyla 2, 3 ve 4) bir firçasiz dogru akim veya bir firçasiz alternatif akim motorunun sürülmesini saglayan bir güç modülü (1) içermektedir. Güç modülünün (l) yüksek gerilim güç anahtarlari (6, HlNl, HIN2, HIN3) ve alçak gerilim güç anahtarlari (7, LlNl, LINZ, LIN3) genellikle, içlerinden geçen ters yöndeki akimin dagitilabilmesini saglayan serbest geçis diyotlari (5) içermektedir. Faz sarimlarina giden güç ilgili serbest geçis diyotlari (5) vasitasiyla kesilmekte ve ilgili fazlarda depolanan manyetik enerji dagitilmaktadir. An electrical household appliance is a three-phase (phase A, phase B and phase C, 2, 3 and 4 respectively) Driving a brushless direct current or a brushless alternating current motor It includes a power module (1) that provides High voltage power of the power module (l) switches (6, HlNl, HIN2, HIN3) and low voltage power switches (7, LlNl, LINZ, LIN3) usually means that the reverse current passing through them can be dissipated. It contains free transition diodes (5). The power to the phase windings is related The free-pass diodes (5) are cut off and stored in the respective phases. magnetic energy is dissipated.
Firçasiz dogru akim veya firçasiz alternatif akim motorunun kontrolü genellikle, Hall sensörleri kullanilmaksizin, motor sarimlarindan geçen akimdan elde edilen bilgi sayesinde motorun konumu Alan Odakli Kontrol (FOC) vasitasiyla hesaplanarak gerçeklestirilmektedir. DC hattindan geçen akim, üç fazli akimlarin yeniden olusturulmasi ve tek bir sönt ve bir diferansiyel amplifikatör kullanilarak motor konumunun hesaplanmasi amaciyla kullanilmaktadir. Control of brushless direct current or brushless alternating current motor is generally, Without the use of Hall sensors, the current obtained from the current passing through the motor windings engine position through information Field Oriented Control (FOC) are calculated and carried out. The current passing through the DC line is the same as the three-phase currents. reconstructed and using a single shunt and a differential amplifier It is used to calculate the motor position.
Teknikte uzman kisilerce bilindigi üzere, her bir fazdan (2, 3, 4) geçen akimin miktari, her bir fazda sönt dirençleri (sekillerde gösterilmemistir) kullanilarak da belirlenebilmektedir. Alternatif olarak, iki bacaktaki akimlar ölçülüp üçüncü akimin Kirchhoff kanunu kullanilarak yeniden olusturulmasiyla akimlarin yeniden olusturulmasi amaciyla iki sönt yöntemi kullanilabilmektedir. Örnegin, sensörleri açiklanmaktadir. As is known to those skilled in the art, the current flowing through each phase (2, 3, 4) The amount can also be calculated using shunt resistors (not shown in the figures) in each phase. can be determined. Alternatively, the currents in both legs can be measured and the third reconstructing the current using Kirchhoff's law. Two shunt methods can be used to create For example, sensors are described.
Bu bulus ile, anahtarlama frekansi azaltilarak anahtarlama kayiplarinin azaltildigi bir kontrol semasi gerçeklestirilmektedir. Düsük motor hizlarinda, akim örnekleme frekansiyla orantili bir düsük anahtarlama frekansi kullanilirken, yüksek motor hizlarinda yüksek bir akim örnekleme frekansi gerekmektedir. With this invention, it is possible to reduce the switching losses by decreasing the switching frequency. A control chart is performed. At low engine speeds, the current when using a low switching frequency proportional to the sampling frequency, A high current sampling frequency is required at high motor speeds.
Anahtarlama frekansi kontrolü hiza bagli olarak gerçeklestirilen bir firçasiz dogru akim veya firçasiz alternatif akim motoru, düsük hizlardaki yikama çevrimleri gibi uzun süreli motor islemlerinin daha düsük anahtarlama kayiplari ile gerçeklestirilebilmesi ve sikma çevrimi gibi yüksek hiz gerektiren islemlerin sensörsüz konum kontrolü elde edilmesi amaciyla yüksek anahtarlama frekanslarinda gerçeklestirilebilmesi bakimindan avantajlidir. Baska bir deyisle, PWM frekansinin azaltilmasi ses komutasyonunu etkilemeksizin anahtarlama kayiplarini azaltmakta, ancak, yüksek devirlerde yüksek örnekleme frekanslarina gereksinim duyulmaktadir. A brushless corrector, whose switching frequency control is carried out depending on the alignment current or brushless alternating current motor, wash cycles at low speeds with lower switching losses of long-term motor operations such as and high-speed operations such as the spin cycle. high switching to achieve sensorless position control It is advantageous in that it can be carried out at frequencies. In other words, Reducing the PWM frequency without affecting the audio commutation switching It reduces the losses, however, at high sampling frequencies at high rpm. is needed.
Bu bulus sayesinde, yüksek hizlarda örnekleme çözünürlügünün artirilmasi amaciyla PWM frekansinin dinamik olarak degistirilmesi saglanmaktadir. Sekil 2°de görüldügü gibi, motor hizinin önceden tanimlanmis bir birinci hizdan düsük olmasi durumunda bir birinci anahtarlama frekansi kullanilmaktadir. Öte yandan, motor hizi önceden belirlenmis birinci hizdan yüksek olan önceden belirlenmis bir ikinci hizdan yüksek oldugunda, birinci anahtarlama frekansindan yüksek olan bir ikinci anahtarlama frekansi kullanilmaktadir. Son olarak, motor hizi önceden belirlenmis birinci hizdan yüksek, söz konusu önceden belirlenmis ikinci hizdan düsük oldugunda, önceki uyarlama sirasinda bir frekans bayragi (FF, 0 veya 1) ile belirlenen PWM frekans seviyesi ayari kullanilmaktadir. Thanks to this invention, it is possible to increase the sampling resolution at high rates. For this purpose, dynamically changing the PWM frequency is provided. Shape As seen in 2°, the engine speed is lower than a predefined first speed. in which case a first switching frequency is used. On the other hand, a predetermined speed whose engine speed is higher than the predetermined first speed. higher than the second speed, a switch higher than the first switching frequency the second switching frequency is used. Finally, the engine speed higher than the first predetermined speed, that predetermined second speed low, with a frequency flag (FF, 0 or 1) during the previous adaptation. determined PWM frequency level setting is used.
Güç anahtarlarinin çalistirilmasi amaciyla PWM teknigi olarak Uzay Vektör Atim Genisligi Modülasyonu (SVPWM) kullanilmaktadir. Özetle, bu bulus ile, bir firçasiz dogru akim motoru olan ve konumu, motor fazlarindan (2, 3, 4) geçen akimlar yeniden olusturulacak sekilde belirlenen bir elektrik motoru, söz konusu elektrik motorunun sürülmesini saglayan, AC sebeke gerilimini DC gerilimine dönüstüren bir çeviriciye sahip bir sürücü devresi, dogru akimi eviren, bir DC hattina baglanan bir alti yollu üç fazli evirici yapisinda olan serbest geçis diyotlarina (5) sahip yüksek gerilim ve alçak gerilim güç anahtarlarina (6, 7) sahip bir evirici güç modülü (l) içeren bir sürücü devresi evirici kati içeren bir elektrikli ev cihazi gerçeklestirilmektedir. Space Vector Pulse as PWM technique for operating power switches Width Modulation (SVPWM) is used. In summary, with this invention, a brushless direct current motor and its position It is determined that the currents passing through phases (2, 3, 4) are reconstructed. electric motor, AC mains, which drives the electric motor in question A driver circuit with a converter that converts the voltage to DC voltage which has the structure of a six-way three-phase inverter connected to a DC line, inverting the current. high voltage and low voltage power supply with free pass diodes (5) A driver circuit comprising an inverter power module (1) with switches (6, 7) An electrical household appliance containing an inverter stage is realized.
Bulusun bir uygulamasinda, güç modülünün (l) PWM frekansi, motor hizi bir birinci önceden belirlenmis hizdan düsük oldugunda bir birinci anahtarlama frekansi uygulanacak ve motor hizi birinci önceden belirlenmis hizdan yüksek olan bir ikinci önceden belirlenmis hizdan yüksek oldugunda birinci anahtarlama frekansindan yüksek olan bir ikinci anahtarlama frekansi uygulanacak ve motor hizi birinci önceden belirlenmis hizdan yüksek, ikinci önceden belirlenmis hizdan düsük oldugunda PWM frekansinin birinci veya ikinci anahtarlama frekansina getirilecek sekilde dinamik olarak degistirilmektedir. In one embodiment of the invention, the PWM frequency of the power module (1) is equal to the motor speed. a first switching when the first is lower than the preset speed frequency will be applied and the motor speed will be higher than the first preset speed. the first switching is higher than the second predetermined speed, which is A second switching frequency higher than the speed higher than the first preset speed, second predetermined speed when it is low, the PWM frequency changes to the first or second switching frequency. is changed dynamically.
Bulusun bir baska uygulamasinda, motor hizi birinci önceden belirlenmis hizdan yüksek, söz konusu ikinci önceden belirlenmis hizdan düsük oldugunda, PWM frekans düzeyi ayari bir bitlik bir frekans bayragina uygun olarak belirlenmektedir. In another embodiment of the invention, the engine speed is greater than the first predetermined speed. high, lower than that second preset speed, PWM frequency level setting according to a one-bit frequency flag. is determined.
Bulusun bir baska uygulamasinda, söz konusu bir bitlik frekans bayragi, motor hizi söz konusu birinci önceden belirlenmis hizdan düsük oldugunda l°e, motor hizi söz konusu ikinci önceden belirlenmis hizdan yüksek oldugunda ise lae ayarlanmaktadir. In another embodiment of the invention, said one-bit frequency flag is 1°e, engine speed is lower than the first preset speed in question. lae when the speed is higher than the second predetermined speed in question. is being set.
Bulusun bir baska uygulamasinda, söz konusu elektrikli ev cihazi bir çamasir makinesi, bir bulasik makinesi, bir kurutma makinesi veya bir kurutmali çamasir makinesidir. In another embodiment of the invention, said household electrical appliance is a washing machine. washing machine, a dishwasher, a tumble dryer or a washer dryer. machine.
Bulusun bir baska uygulamasinda, söz konusu elektrikli ev cihazi bir çamasir yikama ve/veya kurutma makinesidir ve söz konusu elektrik motoru, söz konusu çamasir yikama ve/veya kurutma makinesinin tamburunu döndürmektedir. In another embodiment of the invention, said household electrical appliance is a washing machine. is a washer and/or dryer and said electric motor it rotates the drum of the washer and/or dryer.
Bulusun bir baska uygulamasinda, söz konusu yöntem, söz konusu elektrikli ev cihazinin bir firçasiz dogru akim veya firçasiz alternatif akim motorunu süren bir güç modülünün (l) PWM frekansinin, motor hizi bir birinci önceden belirlenmis hizdan düsük oldugunda bir birinci anahtarlama frekansi uygulanacak ve motor hizi birinci önceden belirlenmis hizdan yüksek olan bir ikinci önceden belirlenmis hizdan yüksek oldugunda birinci anahtarlama frekansindan yüksek olan bir ikinci anahtarlama frekansi uygulanacak ve motor hizi birinci önceden belirlenmis hizdan yüksek, ikinci önceden belirlenmis hizdan düsük oldugunda PWM frekansinin birinci veya ikinci anahtarlama frekansina getirilecek sekilde dinamik olarak degistirilmesi adimlarini içermektedir. In another embodiment of the invention, said method is applied to said electrical house. device that drives a brushless direct current or brushless alternating current motor. the PWM frequency of the power module (1), the motor speed a first predetermined lower than the speed, a first switching frequency will be applied and the motor will a second preset speed whose speed is higher than the first preset speed a second higher than the first switching frequency switching frequency will be applied and the motor speed will be the first predetermined PWM when higher than speed, lower than second preset speed dynamically in such a way that the frequency is brought to the first or second switching frequency. includes the steps of changing it to .
Bu sekilde, bu bulus sayesinde, firçasiz dogru akim veya firçasiz alternatif akim motoru sensörsüz kontrol isleminin gerçeklestirilmesini ve güç anahtarlarinin (6, 7) anahtarlama kayiplarinin azaltilmasini saglayan bir kontrol semasi gerçeklestirilmektedir.In this way, thanks to this invention, brushless direct current or brushless alternating current the realization of the motor sensorless control and the operation of the power switches (6, 7) a control scheme that allows switching losses to be reduced is carried out.
Claims (6)
- l) An electrical household appliance comprising an electric motor, a driver Circuit capable of driving said electric motor, said driver Circuit comprising a converter that converts AC mains voltage to DC voltage, a driver Circuit inverter stage that inverts the direct current, said driver Circuit inverter stage comprising an inverter power module (l) having high side and low side power switches (6, 7) With freewheeling diodes (5) in the form of a six-switch three-phase inverter connected to a DC bus, said electric motor being a brushless DC motor and motor position being determined in the manner that currents flowing through motor phases (2, 3, 4) are recreated characterized in that; PWM frequency of the power module (1) is dynamically changed in the manner that if the motor speed is less than a first predefined speed, a first switching frequency is applied, if the motor speed is greater than a second predefined speed that is greater than the first predefined speed, a second switching frequency greater than the first switching frequency is applied and if the motor speed is greater than the first predefined speed but less than said second predefined speed, the PWM frequency is set to either the first or the second switching frequency.
- 2) An electrical household appliance as in Claim l, characterized in that if the motor speed is greater than the first predefined speed but less than said second predefined speed, the PWM frequency level setting is determined according to the value of a one bit frequency flag.
- 3) An electrical household appliance as in Claim 2, characterized in that said one bit frequency flag is set to 1 if the motor speed is less than said first predefined speed and set to 1 if the motor speed is greater than said second predefined speed.
- 4) An electrical household appliance as in any preceding Claims, characterized in that said electrical household appliance is a washing machine, a dishwasher, a drying machine or a combo drying and washing machine.
- 5) An electrical household appliance as in Claim 4, characterized in that said electrical household appliance is a washing and/or drying machine and said electric motor drives drum of said washing and/or drying machine.
- 6) A method for controlling operation of an electrical household appliance as in Claim l, characterized in that said method comprises the steps of dynamically changing PWM frequency of a power module (l) driving a BLDC or BLAC motor of said electrical household appliance in the manner that if the motor speed is less than a first predefined speed, a first switching frequency is applied and if the motor speed is greater than a second predefined speed that is also greater than the first predefined speed, a second switching frequency greater than the first switching frequency is applied and finally, if the motor speed is greater than the first predefined speed but less than said second predefined speed, than the PWM frequency is set to either the first or the second switching frequency.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/10873A TR201610873A2 (en) | 2016-08-03 | 2016-08-03 | Household appliance having a power module with dynamically controlled switching frequency |
| PCT/EP2017/068862 WO2018024569A1 (en) | 2016-08-03 | 2017-07-26 | Household appliance having a power module with dynamically controlled switching frequency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TR2016/10873A TR201610873A2 (en) | 2016-08-03 | 2016-08-03 | Household appliance having a power module with dynamically controlled switching frequency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TR201610873A2 true TR201610873A2 (en) | 2018-02-21 |
Family
ID=59649654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TR2016/10873A TR201610873A2 (en) | 2016-08-03 | 2016-08-03 | Household appliance having a power module with dynamically controlled switching frequency |
Country Status (2)
| Country | Link |
|---|---|
| TR (1) | TR201610873A2 (en) |
| WO (1) | WO2018024569A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4029135A1 (en) * | 2019-09-11 | 2022-07-20 | KONE Corporation | Method for reducing thermal stress of a power semiconductor switch, an electrical converter unit and an elevator |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100360243B1 (en) | 2000-01-19 | 2002-11-08 | 엘지전자 주식회사 | Apparatus for reducing noise of the compressor using random pulse width modulation and control method thereof |
| JP5195444B2 (en) * | 2009-01-14 | 2013-05-08 | パナソニック株式会社 | Brushless DC motor driving apparatus, refrigerator and air conditioner using the same |
| JP2011045209A (en) * | 2009-08-24 | 2011-03-03 | Panasonic Corp | Motor drive device and method |
| JP5075892B2 (en) * | 2009-09-15 | 2012-11-21 | 日立アプライアンス株式会社 | Inverter device and air conditioner, washing machine, refrigerator using the same |
| US8829846B2 (en) | 2011-08-16 | 2014-09-09 | Texas Instruments Incorporated | Field oriented control of a motor with a single shunt |
| US9523566B2 (en) | 2013-07-22 | 2016-12-20 | Stmicroelectronics S.R.L. | Electric circuit and method for estimating the angular position of a rotor of an electric motor, and device for controlling an electric motor |
-
2016
- 2016-08-03 TR TR2016/10873A patent/TR201610873A2/en unknown
-
2017
- 2017-07-26 WO PCT/EP2017/068862 patent/WO2018024569A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018024569A1 (en) | 2018-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100810851B1 (en) | Motor driving apparatus of a washing and drying machine | |
| Kim et al. | Using low resolution position sensors in bumpless position/speed estimation methods for low cost PMSM drives | |
| US20100264860A1 (en) | Motor and apparatus and method for controlling the motor | |
| JP2017093534A (en) | Washing machine | |
| JP2003135883A (en) | Washing machine motor drive | |
| KR101635551B1 (en) | Motor driving device and dish washing machine including the same | |
| WO2018024571A1 (en) | Household appliance having a power module with continuous and discontinuous pwm control | |
| Dianov et al. | Sensorless starting of horizontal axis washing machines with direct drive | |
| JP4103354B2 (en) | Motor drive device for washing machine | |
| TR201610873A2 (en) | Household appliance having a power module with dynamically controlled switching frequency | |
| CN111434023B (en) | Motor drive device and household appliances having the motor drive device | |
| US9716462B2 (en) | Method for actuating a brushless motor | |
| Vinatha et al. | Recent developments in control schemes of BLDC motors | |
| KR20090087585A (en) | Motor, washing machine comprising the same and control method thereof | |
| WO2018141394A1 (en) | Household appliance with brushless dc motor sensorless control scheme | |
| JP2010088228A (en) | Motor drive controller | |
| JP7522964B2 (en) | washing machine | |
| KR101413180B1 (en) | Motor drive apparatus for washing machine and control method thereof | |
| KR101400242B1 (en) | Motor drive circuit for washing machine and control method thereof | |
| KR101400539B1 (en) | Motor and controlling system for the motor, controlling method for the motor, and waching machine | |
| JPH1189275A (en) | Device for controlling drive of brushless motor and electric appliance using it | |
| Salah et al. | Commutation time estimator for PM BLDC motor torque signature enhancement | |
| KR20090087242A (en) | Motor, washing machine comprising the same and control method thereof | |
| Murray et al. | New motion control architecture simplifies washing machine motor control system development | |
| JP4258085B2 (en) | Dishwasher control device |