CN101609985A - 15KW and following photovoltaic plant and civil power manual switchover circuit - Google Patents
15KW and following photovoltaic plant and civil power manual switchover circuit Download PDFInfo
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- CN101609985A CN101609985A CNA2008100391423A CN200810039142A CN101609985A CN 101609985 A CN101609985 A CN 101609985A CN A2008100391423 A CNA2008100391423 A CN A2008100391423A CN 200810039142 A CN200810039142 A CN 200810039142A CN 101609985 A CN101609985 A CN 101609985A
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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
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
A kind of 15KW and following photovoltaic plant and civil power manual switchover circuit, comprise an air switch QF1 who is electrically connected with the AC380V city, an air switch QF2 who is electrically connected with the 220V photovoltaic and a power output circuit that is connected between QF1, the QF2, this power output circuit comprises the power supply output line that is connected between QF1, the QF2, be parallel with civil power start-up circuit and civil power indicating circuit at power supply output line near air switch QF1 one end, be parallel with photovoltaic electricity start-up circuit and photovoltaic electricity indicating circuit near air switch QF2 one end at power supply output line.The powerup issue that the electric weight instability of small-power photovoltaic plant of having solved 15KW of the present invention and following photovoltaic plant and civil power manual switchover circuit is caused has made full use of solar energy on the one hand, can not influence user's normal electricity consumption on the other hand again.
Description
Technical field
The present invention relates to circuit switched, particularly 15KW and following photovoltaic plant and civil power manual switchover circuit.
Background technology
Solar cell is an electric energy with solar energy converting as emerging clean reproducible energy directly because of having, and the life-span is long, it is simple to safeguard, can realize advantage such as unattended operation and get most of the attention.Solar power supply system has been obtained application more and more widely.
In 15KW in early days and following small-power photovoltaic plant (single-phase 220V) practical application, also be incorporated into the power networks with civil power.Its with load only limit to our station with load.Because the batteries capacity is little, the load Distribution scope is little, tend to take place following two kinds of situations, be that the strong photovoltaic electricity in season of the good illumination of weather toos many or too much for use, and arrived the illumination deficiency or plum rain season photovoltaic electricity not enough, night particularly is because the batteries capacity is little, there is not full charge again, so do not satisfy the need electric weight of load yet.Often can only pulling load.
Summary of the invention
Purpose of the present invention is to solve the problems referred to above that prior art exists, and a kind of 15KW and following photovoltaic plant and civil power manual switchover circuit are provided.
The object of the present invention is achieved like this: a kind of 15KW and following photovoltaic plant and civil power manual switchover circuit are characterized in:
Comprise an air switch QF1 who is electrically connected with the AC380V city, an air switch QF2 who is electrically connected with the 220V photovoltaic and a power output circuit that is connected between QF1, the QF2, this power output circuit comprises the power supply output line that is connected between QF1, the QF2, be parallel with civil power start-up circuit and civil power indicating circuit at power supply output line near air switch QF1 one end, be parallel with photovoltaic electricity start-up circuit and photovoltaic electricity indicating circuit near air switch QF2 one end at power supply output line;
Each parallel circuits is mainly by two A.C. contactor KM1, KM2 controls, wherein, the magnet exciting coil of KM1 and self-sustaining auxiliary contact are connected on the civil power start-up circuit, the auxiliary contact of often opening of KM1 are connected on the civil power indicating circuit, the main contacts of KM1 is connected on the power supply output line between civil power start-up circuit and the civil power indicating circuit, and the normally closed auxiliary contact of KM1 is connected on the photovoltaic electricity start-up circuit; The magnet exciting coil of KM2 and self-sustaining auxiliary contact are connected on the photovoltaic electricity start-up circuit, the auxiliary contact of often opening of KM2 are connected on the photovoltaic electricity indicating circuit, the main contacts of KM2 is connected on the power supply output line between photovoltaic electricity start-up circuit and the electric indicating circuit of photovoltaic, and the normally closed auxiliary contact of KM2 is connected on the civil power start-up circuit.
Described civil power start-up circuit comprises stop button TA1, the start button QA1 of series connection, the normally closed auxiliary contact of A.C. contactor KM2, magnet exciting coil and the control insurance RD1 of A.C. contactor KM1, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM1 on start button QA1.
Described photovoltaic electricity start-up circuit comprises normally closed auxiliary contact, start button QA2, the stop button TA2 of the A.C. contactor KM1 of series connection, magnet exciting coil and the control insurance RD2 of A.C. contactor KM2, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM2 on start button QA2.
Described civil power indicating circuit is in series by the auxiliary contact of often opening of civil power clearing lamp XD1 and A.C. contactor KM1.
Described photovoltaic electricity indicating circuit is in series by the auxiliary contact of often opening of photovoltaic electricity clearing lamp XD2 and A.C. contactor KM2.
The powerup issue that the electric weight instability of small-power photovoltaic plant of having solved 15KW of the present invention and following photovoltaic plant and civil power manual switchover circuit is caused has made full use of solar energy on the one hand, can not influence user's normal electricity consumption on the other hand again.
Description of drawings
Fig. 1 is the circuit diagram of 15KW of the present invention and following photovoltaic plant and civil power manual switchover circuit.
Embodiment
Referring to Fig. 1,15KW of the present invention and following photovoltaic plant and civil power manual switchover circuit, comprise an air switch QF1 who is electrically connected with the AC380V city, air switch QF2 who is electrically connected with the 220V photovoltaic and one are connected QF1, power output circuit between the QF2, this power output circuit comprises and is connected QF1, power supply output line between the QF2, be parallel with civil power start-up circuit 1 and civil power indicating circuit 2 at power supply output line near air switch QF1 one end, be parallel with photovoltaic electricity start-up circuit 3 and photovoltaic electricity indicating circuit 4 near air switch QF2 one end at power supply output line.
Civil power start-up circuit 1 comprises stop button TA1, the start button QA1 of series connection, the normally closed auxiliary contact of A.C. contactor KM2, magnet exciting coil and the control insurance RD1 of A.C. contactor KM1, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM1 on start button QA1.
Civil power indicating circuit 2 is in series by the auxiliary contact of often opening of civil power clearing lamp XD1 and A.C. contactor KM1.
Photovoltaic electricity start-up circuit 3 comprises normally closed auxiliary contact, start button QA2, the stop button TA2 of the A.C. contactor KM1 of series connection, magnet exciting coil and the control insurance RD2 of A.C. contactor KM2, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM2 on start button QA2.
Photovoltaic electricity indicating circuit 4 be in series by the auxiliary contact of often opening of photovoltaic electricity clearing lamp XD2 and A.C. contactor KM2.
The main contacts of KM1 is connected on the power supply output line between civil power start-up circuit and the civil power indicating circuit, and the main contacts of KM2 is connected on the power supply output line between photovoltaic electricity start-up circuit and the electric indicating circuit of photovoltaic.
Mainly by two A.C. contactor KM1, KM2 controls, its concrete operational mode is each parallel circuits:
As use civil power, and the air switch QF1 that closes presses start button QA1, the magnet exciting coil excitation of A.C. contactor KM1, and its self-sustaining auxiliary contact self-sustaining, the main contacts closure, load gets; It often opens the auxiliary contact closure, and XD1 is bright for the corresponding signal lamp.
As using the photovoltaic electricity, press stop button TA1, A.C. contactor KM1 coil loss of excitation, its main contacts disconnects, the civil power outage.The air switch QF2 that closes again presses start button QA2, the magnet exciting coil excitation of A.C. contactor KM2, and its self-sustaining auxiliary contact self-sustaining, the main contacts closure, load gets; It often opens the auxiliary contact closure, and XD2 is bright for the corresponding signal lamp.
Claims (5)
1, a kind of 15KW and following photovoltaic plant and civil power manual switchover circuit is characterized in that:
Comprise an air switch QF1 who is electrically connected with the AC380V city, an air switch QF2 who is electrically connected with the 220V photovoltaic and a power output circuit that is connected between QF1, the QF2, this power output circuit comprises the power supply output line that is connected between QF1, the QF2, be parallel with civil power start-up circuit and civil power indicating circuit at power supply output line near air switch QF1 one end, be parallel with photovoltaic electricity start-up circuit and photovoltaic electricity indicating circuit near air switch QF2 one end at power supply output line;
Each parallel circuits is mainly by two A.C. contactor KM1, KM2 controls, wherein, the magnet exciting coil of KM1 and self-sustaining auxiliary contact are connected on the civil power start-up circuit, the auxiliary contact of often opening of KM1 are connected on the civil power indicating circuit, the main contacts of KM1 is connected on the power supply output line between civil power start-up circuit and the civil power indicating circuit, and the normally closed auxiliary contact of KM1 is connected on the photovoltaic electricity start-up circuit; The magnet exciting coil of KM2 and self-sustaining auxiliary contact are connected on the photovoltaic electricity start-up circuit, the auxiliary contact of often opening of KM2 are connected on the photovoltaic electricity indicating circuit, the main contacts of KM2 is connected on the power supply output line between photovoltaic electricity start-up circuit and the electric indicating circuit of photovoltaic, and the normally closed auxiliary contact of KM2 is connected on the civil power start-up circuit.
2,15KW as claimed in claim 1 and following photovoltaic plant and civil power manual switchover circuit, it is characterized in that: described civil power start-up circuit comprises stop button TA1, the start button QA1 of series connection, the normally closed auxiliary contact of A.C. contactor KM2, magnet exciting coil and the control insurance RD1 of A.C. contactor KM1, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM1 on start button QA1.
3,15KW as claimed in claim 1 and following photovoltaic plant and civil power manual switchover circuit, it is characterized in that: described photovoltaic electricity start-up circuit comprises normally closed auxiliary contact, start button QA2, the stop button TA2 of the A.C. contactor KM1 of series connection, magnet exciting coil and the control insurance RD2 of A.C. contactor KM2, is parallel with the self-sustaining auxiliary contact of A.C. contactor KM2 on start button QA2.
4,15KW as claimed in claim 1 and following photovoltaic plant and civil power manual switchover circuit, it is characterized in that: described civil power indicating circuit is in series by the auxiliary contact of often opening of civil power clearing lamp XD1 and A.C. contactor KM1.
5,15KW as claimed in claim 1 and following photovoltaic plant and civil power manual switchover circuit is characterized in that: described photovoltaic electricity indicating circuit is in series by the auxiliary contact of often opening of photovoltaic electricity clearing lamp XD2 and A.C. contactor KM2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100391423A CN101609985A (en) | 2008-06-18 | 2008-06-18 | 15KW and following photovoltaic plant and civil power manual switchover circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100391423A CN101609985A (en) | 2008-06-18 | 2008-06-18 | 15KW and following photovoltaic plant and civil power manual switchover circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101609985A true CN101609985A (en) | 2009-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100391423A Pending CN101609985A (en) | 2008-06-18 | 2008-06-18 | 15KW and following photovoltaic plant and civil power manual switchover circuit |
Country Status (1)
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|---|---|
| CN (1) | CN101609985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185370A (en) * | 2011-03-30 | 2011-09-14 | 上海迪吉特控制系统有限公司 | Solar comprehensive energy-saving system for station-service power of power station |
| CN102222969A (en) * | 2011-06-13 | 2011-10-19 | 安徽理士电池技术有限公司 | Dual power supply circuit system |
| CN103683328A (en) * | 2013-12-13 | 2014-03-26 | 厦门市东港智能科技有限公司 | Automatic switching module and photovoltaic grid-connected and off-grid full-automatic power generation system |
-
2008
- 2008-06-18 CN CNA2008100391423A patent/CN101609985A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102185370A (en) * | 2011-03-30 | 2011-09-14 | 上海迪吉特控制系统有限公司 | Solar comprehensive energy-saving system for station-service power of power station |
| CN102222969A (en) * | 2011-06-13 | 2011-10-19 | 安徽理士电池技术有限公司 | Dual power supply circuit system |
| CN102222969B (en) * | 2011-06-13 | 2013-07-31 | 安徽理士电池技术有限公司 | Dual power supply circuit system |
| CN103683328A (en) * | 2013-12-13 | 2014-03-26 | 厦门市东港智能科技有限公司 | Automatic switching module and photovoltaic grid-connected and off-grid full-automatic power generation system |
| CN103683328B (en) * | 2013-12-13 | 2016-02-10 | 厦门市东港智能科技有限公司 | Automatic switching module and photovoltaic from net full-automatic power generation system |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091223 |