CN203151120U - Household hybrid power supply system - Google Patents
Household hybrid power supply system Download PDFInfo
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- CN203151120U CN203151120U CN201320106391.6U CN201320106391U CN203151120U CN 203151120 U CN203151120 U CN 203151120U CN 201320106391 U CN201320106391 U CN 201320106391U CN 203151120 U CN203151120 U CN 203151120U
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- 230000002457 bidirectional effect Effects 0.000 claims abstract description 7
- 238000010248 power generation Methods 0.000 abstract description 5
- 230000003068 static effect Effects 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001172 regenerating effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- 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
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
本实用新型公开了一种家用混合供电系统，包括DC/DC变换器、双向AC/DC变换器、一级直流母线、二级直流母线、交流母线、自动切换装置（1）、蓄电池组，其中自动切换装置（1）可根据不同的用电环境设置不同的供电模式，控制各模块之间的能量流向；交流母线分为两路，分别连接不间断供电负载和可间断供电负载；蓄电池组与二级直流母线连接，本装置将太阳能或风力发电输出的电能进行转化，实现并网功能，为电网提供动态或静态支撑及无功补偿，减缓电网功率的突变及对电网的冲击，本装置可实现电能自发自用，优化能源供给方式，是未来家用供电的主要模式，达到了24小时的清洁能源供应以及电网损耗最小化、客户收益最大化的效果。
The utility model discloses a household hybrid power supply system, which comprises a DC/DC converter, a bidirectional AC/DC converter, a primary DC bus, a secondary DC bus, an AC bus, an automatic switching device (1), and a battery pack, wherein The automatic switching device (1) can set different power supply modes according to different power consumption environments, and control the energy flow between modules; the AC bus is divided into two circuits, which are respectively connected to uninterruptible power supply loads and intermittent power supply loads; the battery pack and Two-level DC bus connection, this device converts the electric energy output by solar or wind power generation, realizes the function of grid connection, provides dynamic or static support and reactive power compensation for the grid, and slows down the sudden change of grid power and the impact on the grid. This device can Realizing self-generation and self-use of electric energy and optimizing the energy supply mode are the main modes of household power supply in the future, achieving 24-hour clean energy supply, minimizing grid loss, and maximizing customer benefits.
Description
Technical field
The utility model relates to a kind of family expenses mixed power supply system, belongs to the technical field of power system power supply.
Background technology
In recent years, energy shortage becomes increasingly conspicuous to the influence of social development, obtained the attention of many countries based on the distributed generation system of regenerative resource, photovoltaic DC-to-AC converter is as the fresh combatants of regenerative resource, all give the installation that photovoltaic combining inverter is encouraged in certain subsidy both at home and abroad, but photovoltaic generation has unsteadiness, inherent shortcomings such as discontinuity, large-scale grid-connected even threatened the stable operation of public electric wire net gradually, present many countries put into effect rules on the one hand, the access of restriction photovoltaic combining inverter, progressively downward modulation online subsidy on the other hand, the income of reduction combining inverter, along with sustainable development of social economy, the demand of electric power system is increasing, therefore, provides a kind of energy-conserving and environment-protective, electric power system is present problem demanding prompt solution safely and efficiently.
Summary of the invention
Technical problem to be solved in the utility model is:
At the shortcoming and defect in the background technology, the utility model provides a kind of family expenses mixed power supply system, the electric energy of solar energy or wind power generation output is transformed, directly supply with the DC load application on the one hand and be stored in the storage battery standby, on the other hand unnecessary energy is fed back to electrical network, for electrical network provides dynamically or static the support and reactive power compensation, slow down the sudden change of grid power and to the impact of electrical network; Increase automatic switching control equipment simultaneously, make different power utilization environments that different powering modes is set, optimize the energy resource supply mode, for crucial DC load and AC load provide uninterrupted power supply.
The utility model is for solving the problems of the technologies described above by the following technical solutions:
A kind of family expenses mixed power supply system, comprise DC/DC converter, two-way AC/DC converter, one-level dc bus, secondary dc bus, ac bus, automatic switching control equipment, batteries, wherein the DC/DC converter comprises unidirectional DC/DC converter and two-way DC/DC converter; Automatic switching control equipment is connected with one-level dc bus, unidirectional DC/DC converter, AC/DC converter, uninterrupted power supply load, and two-way DC/DC converter is connected between one-level dc bus and the secondary dc bus; Two-way AC/DC converter is connected with ac bus by electrical network on the one hand, is connected with the uninterrupted power supply load by automatic switching control equipment on the other hand; Ac bus is divided into two-way, but connects uninterrupted power supply load and interruptedly supplying power load respectively; Batteries is connected with the secondary dc bus; Described automatic switching control equipment comprises sensor assembly, DSP or single chip control module.
The utility model adopts above technical scheme compared with prior art, has following technique effect:
(1) by increasing two-way DC/DC circuit and secondary dc bus, can be directly used in the DC load after the electric energy conversion with device of solar generating, also can be with power storage in storage battery, can realize that DC load and uninterrupted power supply load under net state to use.
(2) increased automatic switching control equipment, realized optimum energy resource supply mode, the user can charge the battery in the low power consumption period, and the peak of power consumption period is used the battery supply load, reduces electric cost significantly; Simultaneously give electrical network with the electric energy feed during peak of power consumption, for electrical network provides dynamically or static the support and reactive power compensation, slow down the sudden change of grid power and to the impact of electrical network; The loss that realizes electrical network minimizes and client's maximum revenue.
(3) two-way AC/DC converter is realized the solar power generation grid-connecting function on the one hand, can be charge in batteries by electrical network on the other hand, realizes the uninterrupted power supply of DC load and AC load.
Description of drawings
Fig. 1 is that system of the present utility model constitutes block diagram.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in further detail:
The utility model provides a kind of family expenses mixed power supply system, as shown in Figure 1, comprise DC/DC converter, AC/DC converter, one-level dc bus, secondary dc bus, ac bus, automatic switching control equipment, described DC/DC converter comprises the first unidirectional DC/DC1 converter and two-way DC/DC2 converter, and automatic switching control equipment is connected with one-level dc bus, unidirectional DC/DC1 converter, two-way AC/DC1 converter, uninterrupted power supply load; Two-way DC/DC2 converter is connected between one-level dc bus and the secondary dc bus; Two-way AC/DC1 converter is connected with ac bus by electrical network, and ac bus is divided into two-way, but load is connected with interruptedly supplying power with the uninterrupted power supply load respectively.
The first unidirectional DC/DC1 converter is used for solar energy is converted to the one-level DC bus-bar voltage, two-way DC/DC2 converter is used for realizing the bidirectional energy conversion of one-level dc bus and secondary dc bus, two-way AC/DC1 converter is used for realizing the bidirectional energy conversion of electrical network and one-level dc bus and is uninterrupted power supply load power supply, automatic switching control equipment can be according to electricity consumption situation automatic switchover powering mode, secondary dc bus and batteries and DC load such as display, server, equipment such as LED are connected, be used to the DC load power supply and be battery charging; Ac bus is divided into two-way, but load is connected with interruptedly supplying power with the uninterrupted power supply load respectively, wherein the uninterrupted power supply load comprises computer, watch-dog, Medical Devices, warning device etc., but the interruptedly supplying power load comprises domestic electric appliances such as domestic air conditioning, water pump, TV.
The utility model system work process is as follows:
A, when electrical network normal, when solar energy or wind energy are supplied with abundance, the family expenses mixed power supply system is operated under the pattern of being incorporated into the power networks, solar energy flows into the one-level dc bus through the first unidirectional DC/DC1 converter, it is DC bus powered to flow into secondary through the DC/DC2 converter then, realize the power supply of DC load, accumulators group charging simultaneously; Unnecessary solar energy feeds back to electrical network through two-way AC/DC1 converter, and ac bus is by mains supply.The user can arrange automatic switching control equipment and change the energy flow direction, be set to the solar energy pattern that preferentially is incorporated into the power networks, the output voltage of photovoltaic power generation apparatus feeds back to electrical network after by the first unidirectional DC/DC1 converter, one-level dc bus, the conversion of two-way AC/DC1 converter, is the ac bus power supply; Be set to the preferential accumulators group of solar energy charge mode, the output voltage of photovoltaic power generation apparatus outputs to the secondary dc bus after by the first unidirectional DC/DC1 converter, one-level dc bus, the conversion of two-way DC/DC2 converter, be battery charging, give power devices such as DC load such as display, server, LED simultaneously; When being set to the batteries discharge mode, the family expenses mixed power supply system will automatically switch to the batteries discharge mode, be given power devices such as DC load such as display, server, LED by batteries;
When solar energy or wind energy undersupply, when causing batteries under-voltage, the family expenses mixed power supply system will change the grid charging pattern over to, kept the power supply of ac bus by electrical network, through two-way AC/DC1 converter and the charging of two-way DC/DC2 converter accumulators group, avoid the long-term under-voltage battery life that influences simultaneously.
B, when electrical network is unusual, the family expenses mixed power supply system transfers to from the work of net pattern, and automatic cut-out is connected with electrical network, but disconnects the power supply of interruptedly supplying power load simultaneously, two-way AC/DC1 converter obtains energy from the one-level dc bus, keeps the power supply of uninterrupted power supply load.When solar power during greater than bearing power, keep the power supply of DC load and uninterrupted power supply load, accumulators group charging simultaneously by solar energy.When solar power during less than load, give DC load and uninterrupted power supply load power supply together by solar energy and batteries; Power system restoration just often, the family expenses mixed power supply system will be automatically from transferring the pattern work of being incorporated into the power networks to from the net pattern.
The utility model family expenses mixed power supply system, the available wind generating is that one-level is DC bus powered by unidirectional AC/DC2 converter, the one-level dc bus is equipment charges such as electric automobile by the second unidirectional DC/DC3 converter, and the user can arrange different powering modes.
The control of the utility model automatic switching control equipment can be selected to detect by transducer signal such as electric current and voltage and send DSP or single-chip microcomputer to, after single-chip microcomputer judges that detection signal is handled, sends control command and realizes the automatic switchover powering mode.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320106391.6U CN203151120U (en) | 2013-03-08 | 2013-03-08 | Household hybrid power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320106391.6U CN203151120U (en) | 2013-03-08 | 2013-03-08 | Household hybrid power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203151120U true CN203151120U (en) | 2013-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320106391.6U Expired - Lifetime CN203151120U (en) | 2013-03-08 | 2013-03-08 | Household hybrid power supply system |
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| Country | Link |
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| CN (1) | CN203151120U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253358A (en) * | 2016-08-25 | 2016-12-21 | 江西清华泰豪三波电机有限公司 | A kind of uninterrupted vehicle-mounted comprehensive power electric power system of two-output impulse generator |
| CN108695909A (en) * | 2017-03-30 | 2018-10-23 | 空中客车德国运营有限责任公司 | Aircraft electric power supply system with conventional AC network and bipolar DC network |
| CN109921409A (en) * | 2019-04-16 | 2019-06-21 | 清华大学 | It is a kind of to build full direct current supply and accumulating system and control method |
-
2013
- 2013-03-08 CN CN201320106391.6U patent/CN203151120U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106253358A (en) * | 2016-08-25 | 2016-12-21 | 江西清华泰豪三波电机有限公司 | A kind of uninterrupted vehicle-mounted comprehensive power electric power system of two-output impulse generator |
| CN108695909A (en) * | 2017-03-30 | 2018-10-23 | 空中客车德国运营有限责任公司 | Aircraft electric power supply system with conventional AC network and bipolar DC network |
| CN109921409A (en) * | 2019-04-16 | 2019-06-21 | 清华大学 | It is a kind of to build full direct current supply and accumulating system and control method |
| WO2020211307A1 (en) * | 2019-04-16 | 2020-10-22 | 清华大学 | Building full-direct-current power supply and electricity storage system and control method |
| US11190013B2 (en) | 2019-04-16 | 2021-11-30 | Tsinghua University | System and control method of all-DC power supply and storage for building |
| CN109921409B (en) * | 2019-04-16 | 2024-01-16 | 清华大学 | A building full DC power supply and storage system and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 226100 No.888, Jiuhua Road, high tech Zone, Nantong City, Jiangsu Province Patentee after: Wotai Energy Co.,Ltd. Address before: 226300 Yingcai building, Dongda science and Technology Park, 788 Century Avenue, Nantong high tech Zone, Nantong City, Jiangsu Province Patentee before: NEOVOLTAIC ENERGY NANTONG Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |
|
| CX01 | Expiry of patent term |