CN111327106B - Dual-power automatic switching power supply system - Google Patents
Dual-power automatic switching power supply system Download PDFInfo
- Publication number
- CN111327106B CN111327106B CN202010121552.3A CN202010121552A CN111327106B CN 111327106 B CN111327106 B CN 111327106B CN 202010121552 A CN202010121552 A CN 202010121552A CN 111327106 B CN111327106 B CN 111327106B
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- China
- Prior art keywords
- power supply
- power
- transformer
- dual
- load circuit
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- 230000005611 electricity Effects 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 22
- 230000001681 protective effect Effects 0.000 claims description 20
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 10
- 229910052744 lithium Inorganic materials 0.000 claims description 10
- 230000007246 mechanism Effects 0.000 claims description 8
- 239000007858 starting material Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- 230000009977 dual effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229960000074 biopharmaceutical Drugs 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
-
- 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
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention provides a dual-power automatic switching power supply system, which comprises a high-voltage side power supply circuit and a low-voltage side power supply circuit, wherein the low-voltage side power supply circuit comprises a company power utilization load circuit and a key equipment power utilization load circuit, and the company power utilization load circuit is connected with the high-voltage side power supply circuit through a transformer; the company electricity load circuit is connected with the transformer through a change-over switch, and the change-over switch is also connected with a standby generator; after detecting a power-off signal of the transformer, the change-over switch controls the generator to start to supply power for an electric load circuit of the key equipment; the current situation that key equipment cannot be rapidly switched to a standby motor line in a power-off state is improved.
Description
Technical Field
The invention relates to the technical field of power supply, in particular to a dual-power automatic switching power supply system.
Background
The key equipment power consumption used in the biopharmaceutical enterprises needs to be continuously supplied to ensure the normal operation of the key equipment, and the power consumption of the key equipment is mainly ensured by a special high-voltage line at present and is supplied to the whole enterprise; after the emergency motor is in a power failure state, the emergency motor needs to be started manually to ensure the power utilization of the key equipment, but the whole process is slower in reaction speed, the requirement of quick response cannot be met, and the power failure fault is easy to occur in the use process of the key equipment.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention provides a dual-power automatic switching power supply system, which solves the problem that key equipment cannot be quickly switched to a standby motor circuit in a power-off state.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the dual-power automatic switching power supply system comprises a high-voltage side power supply circuit and a low-voltage side power supply circuit, wherein the low-voltage side power supply circuit comprises a company power utilization load circuit and a key equipment power utilization load circuit, and the company power utilization load circuit is connected with the high-voltage side power supply circuit through a transformer; the company electricity load circuit is connected to the transformer through a change-over switch, and the change-over switch is also connected with a standby generator; and after the change-over switch detects the power-off signal of the transformer, the generator is controlled to start to supply power for the electric load circuit of the key equipment.
Preferably, the high-voltage side power supply circuit comprises a Huasheng special high-voltage circuit and a bridge high-voltage circuit which are connected in parallel and connected with the transformer.
Preferably, the change-over switch comprises an underground pillar and a protective shell fixedly connected to the underground pillar, wherein a support frame is arranged at the bottom of the protective shell, a power supply detection controller is arranged on the support frame, and a lithium battery connected with the power supply detection controller is arranged in the underground pillar; the power supply detection controller is provided with a detection cable connected with the transformer and a starting cable connected with a starter of the standby generator; the protective shell is provided with a normally closed connector for connecting the transformer and an electric load circuit of key equipment; the protection shell is also provided with a normally open connector for connecting the standby generator with an electric load circuit of key equipment; the support frame is provided with a control unit for controlling the connection or disconnection of the normally open connector, and the control unit is connected with the power supply detection controller.
Preferably, the normally open connector comprises an input connector connected with the standby generator and an output connector connected with the electric load of the key equipment, and the input connector and the output connector are arranged at intervals at one end of the protective shell.
Preferably, the control unit comprises a reciprocating telescopic motor fixedly mounted on the support frame, an insulating plate is fixedly mounted on a telescopic shaft of the reciprocating telescopic motor, and a conductive connecting plate for connecting the input connector and the output connector is mounted on the insulating plate.
Preferably, a pushing mechanism for pushing the conductive connecting plate to move downwards is arranged in the protective shell, the pushing mechanism comprises a supporting sleeve fixedly connected to the protective shell, a telescopic rod is slidably arranged in the supporting sleeve, and a limiting shell for abutting against the conductive connecting plate is fixedly connected to the lower end of the telescopic rod; the support sleeve is provided with a pushing spring, one end of which abuts against the limiting shell.
Preferably, the limiting shell is made of an insulating material.
Preferably, the lithium battery is a rechargeable battery.
Compared with the prior art, the invention has the following beneficial effects:
detecting a normal power supply line through a change-over switch, and directly guiding power to a power utilization load line of the key equipment when the power supply is detected to be normal so as to ensure the normal operation of the key equipment; when a power failure state is detected, starting the preparation generator and guiding standby power to key equipment; therefore, the quick switching process is realized, and the slow rhythm that the standby motor needs to be started manually in the existing state is improved.
Drawings
FIG. 1 is a schematic diagram of the working principle of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a transfer switch;
FIG. 3 is a schematic structural view of a pushing mechanism;
in the figure, a ground pillar 1, a protective housing 2, a supporting frame 3, a power supply detection controller 4, a lithium battery 5, a detection cable 6, a starting cable 7, a normally closed connector 8, a normally open connector 9, an input connector 91, an output connector 92, a control unit 10, a reciprocating telescopic motor 101, an insulating plate 102, a conductive connecting plate 103, a pushing mechanism 11, a supporting sleeve 111, a telescopic rod 112, a limiting shell 113 and a pushing spring 114 are buried.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
As shown in fig. 1, the invention provides a dual-power automatic switching power supply system, which comprises a high-voltage side power supply line and a low-voltage side power supply line, wherein the low-voltage side power supply line comprises a company power utilization load line and a key equipment power utilization load line, and the company power utilization load line is connected with the high-voltage side power supply line through a transformer; the company electricity load circuit is connected to the transformer through a change-over switch, and the change-over switch is also connected with a standby generator; and after the change-over switch detects the power-off signal of the transformer, the generator is controlled to start to supply power for the electric load circuit of the key equipment. Under normal power supply state, the high-voltage power supply line is used for providing power for the low-voltage power supply line after the high-voltage power supply line is processed by the transformer, and is mainly used for supplying power for the company power utilization load line and the key equipment power utilization load line, wherein the key equipment power utilization load line is connected through the change-over switch, and the change-over switch is used for controlling the starting of the standby generator and conducting the standby power to the key equipment power utilization load line after detecting that the main power supply line is powered off, so that the key equipment can continuously and normally run.
In order to ensure that the power supply of the high-voltage side is stable, the power supply can be continuously supplied under the non-special condition, and the high-voltage side power supply circuit comprises a Huasheng special high-voltage circuit and a bridge high-voltage circuit which are connected in parallel and connected with a transformer, so that the probability of simultaneously faults or power failures is small.
When a power failure or a fault is encountered, the standby power is switched and controlled mainly through a change-over switch so as to ensure the normal state of the electric load circuit of the key equipment; as shown in fig. 2 to 3, the change-over switch comprises an underground pillar 1 and a protective housing 2 fixedly connected to the underground pillar 1, wherein a support frame 3 is installed at the bottom of the protective housing 2, a power detection controller 4 is installed on the support frame 3, a lithium battery 5 connected with the power detection controller 4 is installed in the underground pillar 1, the power supply is performed on the power detection controller 4 through the lithium battery 5, in order to keep the power supply of the lithium battery 5 sufficient, the normal operation of the power detection controller 4 can be supported under the condition that the main circuit is powered off, the lithium battery 5 is a rechargeable battery, and the lithium battery 5 is charged by the power detection controller 4 under the normal operation state. The power supply detection controller 4 is provided with a detection cable 6 connected with a transformer and a starting cable 7 connected with a starter of the standby generator, when the power supply detection controller 4 detects that the main power supply circuit is in power failure or faults, a control signal is transmitted through the starting cable and a power supply is driven to the starter of the standby generator so as to drive the standby generator to operate, standby power is transmitted to an electric load circuit of key equipment after the standby generator operates, the whole starting process consumes about 15 seconds, and compared with a manual starting process, the starting process is more rapid.
A normally closed connector 8 for connecting a transformer and an electric load circuit of key equipment is arranged on the protective shell 2, and the normally closed connector 8 mainly plays a role in continuous conduction in a normal running state; meanwhile, a normally open connector 9 for connecting a standby generator with an electric load circuit of key equipment is also arranged on the protective shell 2, and the normally open connector 9 is completely disconnected in a normal power supply state so as to ensure normal use of the normally closed connector 8; the support frame 3 is provided with a control unit 10 for controlling the connection or disconnection of the normally open connector 9, the control unit 10 is connected with the power supply detection controller 4, when power supply is abnormal, the normally open connector 9 is connected through the action of the control unit 10, and the power generated by the standby generator is transmitted to an electric load circuit of the key equipment, so that the two power supply sources are switched, and the normal operation of the key equipment is ensured.
Specifically, the normally open connector 9 includes an input connector 91 connected with the standby generator and an output connector 92 connected with the electrical load of the key equipment, where the input connector 91 and the output connector 92 are disposed at intervals at one end in the protective housing 2; the control unit 10 comprises a reciprocating telescopic motor 101 fixedly arranged on the support frame 3, an insulating plate 102 is fixedly arranged on a telescopic shaft of the reciprocating telescopic motor 101, and a conductive connecting plate 103 for connecting the input connector 91 with the output connector 92 is arranged on the insulating plate 102; after the power-off state, the power detection controller 4 controls the reciprocating telescopic motor 101 to act, pushes the conductive plate 103 to move upwards so that the input connector 91 is communicated with the output connector 92, and avoids the condition that the reciprocating telescopic motor 101 is electrified through the insulating plate 102.
In order to prevent the conductive connection plate 103 from contacting the normally open connector 9 when the normally open state is maintained, a pushing mechanism 11 for pushing the conductive connection plate 103 to move downwards is arranged in the protective shell 2, the pushing mechanism 11 comprises a supporting sleeve 111 fixedly connected to the protective shell 2, a telescopic rod 112 is slidably arranged in the supporting sleeve 111, a limiting shell 113 for abutting against the conductive connection plate 103 is fixedly connected to the lower end of the telescopic rod 112, and a pushing spring 114 with one end abutting against the limiting shell 113 is arranged on the supporting sleeve 111; in the disconnection state of the normally open connector 9, the limiting shell 113 is pushed to move downwards under the action of the pushing spring 114 so as to push the conductive connecting plate 103, and the normally open connector 9 is based on the principle, so that the situation of unexpected conduction is avoided, wherein the limiting shell 113 is made of an insulating material.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered by the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a dual supply automatic switch-over power supply system, includes high-pressure side power supply line and low-pressure side power supply line, its characterized in that: the low-voltage side power supply circuit comprises a company power utilization load circuit and a key equipment power utilization load circuit, and the company power utilization load circuit is connected with the high-voltage side power supply circuit through a transformer; the company electricity load circuit is connected to the transformer through a change-over switch, and the change-over switch is also connected with a standby generator;
the change-over switch controls the generator to start to supply power for the electric load circuit of the key equipment after detecting the power-off signal of the transformer;
the change-over switch comprises an underground pillar and a protective shell fixedly connected to the underground pillar, wherein a support frame is arranged at the bottom of the protective shell, a power supply detection controller is arranged on the support frame, and a lithium battery connected with the power supply detection controller is arranged in the underground pillar;
the power supply detection controller is provided with a detection cable connected with the transformer and a starting cable connected with a starter of the standby generator;
the protective shell is provided with a normally closed connector for connecting the transformer and an electric load circuit of key equipment;
the protection shell is also provided with a normally open connector for connecting the standby generator with an electric load circuit of key equipment;
the support frame is provided with a control unit for controlling the connection or disconnection of the normally open connector, and the control unit is connected with the power supply detection controller.
2. The dual-power automatic switching power supply system according to claim 1, wherein: the high-voltage side power supply circuit comprises a Huasheng special high-voltage circuit and a bridge high-voltage circuit which are connected in parallel and connected with the transformer.
3. The dual-power automatic switching power supply system according to claim 1, wherein: the normally open connector comprises an input connector connected with the standby generator and an output connector connected with the electric load of the key equipment, wherein the input connector and the output connector are arranged at intervals at one end of the protective shell.
4. A dual-power automatic switching power supply system according to claim 3, wherein: the control unit comprises a reciprocating telescopic motor fixedly arranged on the supporting frame, an insulating plate is fixedly arranged on a telescopic shaft of the reciprocating telescopic motor, and a conductive connecting plate used for connecting an input connector and an output connector is arranged on the insulating plate.
5. A dual-power automatic switching power supply system according to claim 3, wherein: the protective shell is internally provided with a pushing mechanism for pushing the conductive connecting plate to move downwards, the pushing mechanism comprises a supporting sleeve fixedly connected to the protective shell, a telescopic rod is slidably arranged in the supporting sleeve, and the lower end of the telescopic rod is fixedly connected with a limiting shell for abutting against the conductive connecting plate;
the support sleeve is provided with a pushing spring, one end of which abuts against the limiting shell.
6. The dual-power automatic switching power supply system as set forth in claim 5, wherein: the limiting shell is made of an insulating material.
7. The dual-power automatic switching power supply system according to claim 1, wherein: the lithium battery is a rechargeable battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010121552.3A CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010121552.3A CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111327106A CN111327106A (en) | 2020-06-23 |
| CN111327106B true CN111327106B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010121552.3A Active CN111327106B (en) | 2020-02-26 | 2020-02-26 | Dual-power automatic switching power supply system |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113314361B (en) * | 2021-06-11 | 2023-07-25 | 中煤科工集团信息技术有限公司 | Cable rapid alternating power supply replacement device and method suitable for multiple equipment groups |
| CN115065146B (en) * | 2022-08-15 | 2022-12-13 | 广东电网有限责任公司云浮供电局 | Power-protection conversion device for overhead line and control method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN201369602Y (en) * | 2009-03-13 | 2009-12-23 | 温州市创力电子有限公司 | Alternating-current distribution unit |
| CN104917288A (en) * | 2015-06-30 | 2015-09-16 | 遵义市产品质量检验检测院 | Laboratory uninterrupted power supply system |
| CN106230098A (en) * | 2016-07-30 | 2016-12-14 | 孟玲 | The high-tension switch cabinet system that a kind of security performance is high |
| CN206759143U (en) * | 2017-06-01 | 2017-12-15 | 中国神华能源股份有限公司 | Plant standby power supply system |
-
2020
- 2020-02-26 CN CN202010121552.3A patent/CN111327106B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201238200Y (en) * | 2008-03-25 | 2009-05-13 | 颜怀略 | Intelligent generator set for uninterrupted power supply |
| CN201369602Y (en) * | 2009-03-13 | 2009-12-23 | 温州市创力电子有限公司 | Alternating-current distribution unit |
| CN104917288A (en) * | 2015-06-30 | 2015-09-16 | 遵义市产品质量检验检测院 | Laboratory uninterrupted power supply system |
| CN106230098A (en) * | 2016-07-30 | 2016-12-14 | 孟玲 | The high-tension switch cabinet system that a kind of security performance is high |
| CN206759143U (en) * | 2017-06-01 | 2017-12-15 | 中国神华能源股份有限公司 | Plant standby power supply system |
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| Publication number | Publication date |
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| CN111327106A (en) | 2020-06-23 |
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