CN203151120U - Household hybrid power supply system - Google Patents
Household hybrid power supply system Download PDFInfo
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- CN203151120U CN203151120U CN 201320106391 CN201320106391U CN203151120U CN 203151120 U CN203151120 U CN 203151120U CN 201320106391 CN201320106391 CN 201320106391 CN 201320106391 U CN201320106391 U CN 201320106391U CN 203151120 U CN203151120 U CN 203151120U
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Abstract
The utility model discloses a household hybrid power supply system which comprises a DC/DC converter, a bi-directional AC/DC converter, a first level direct current bus, a second level direct current bus, an alternating current bus, an automatic switching device (1) and a storage battery group. The automatic switching device (1) is provided with different power supply modes according to different electric power environments, so as to control the power flow direction between modules. The alternating current bus is divided into two paths which are respectively connected with an uninterruptible power supply load and an interruptible power supply load. The storage battery group is connected with the second level direct current bus. The device converts the electric power output by solar or wind power generation, realizes a grid-connection function, provides dynamic or static support and reactive power compensation for a power grid, and slows the impact of power mutation of the power grid on the power grid. The device can realize electric power self-generation and self-use, optimizes the power supply mode, is the main household power supply mode in future, and realizes the effects of 24-hour clean power supply, power grid loss minimization and customer revenue maximization.
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)
1. family expenses mixed power supply system, it is characterized in that: comprise DC/DC converter, two-way AC/DC converter, one-level dc bus, secondary dc bus, ac bus, automatic switching control equipment (1), batteries, wherein the DC/DC converter comprises unidirectional DC/DC converter and two-way DC/DC converter; Automatic switching control equipment (1) 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 (1) 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.
2. a kind of family expenses mixed power supply system according to claim 1, it is characterized in that: described automatic switching control equipment (1) comprises sensor assembly, DSP or single chip control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106391 CN203151120U (en) | 2013-03-08 | 2013-03-08 | Household hybrid power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320106391 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 |
Family
ID=48978615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320106391 Expired - Lifetime CN203151120U (en) | 2013-03-08 | 2013-03-08 | Household hybrid power supply system |
Country Status (1)
| Country | Link |
|---|---|
| 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 CN 201320106391 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 | Building full-direct-current 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 | ||
| 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. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |