CN202111031U - Electronic type circuit breaker for solar battery pack string - Google Patents
Electronic type circuit breaker for solar battery pack string Download PDFInfo
- Publication number
- CN202111031U CN202111031U CN2011201634129U CN201120163412U CN202111031U CN 202111031 U CN202111031 U CN 202111031U CN 2011201634129 U CN2011201634129 U CN 2011201634129U CN 201120163412 U CN201120163412 U CN 201120163412U CN 202111031 U CN202111031 U CN 202111031U
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- CN
- China
- Prior art keywords
- circuit breaker
- tripping device
- battery pack
- solar battery
- conditioning unit
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Abstract
The utility model discloses an electronic type circuit breaker for a solar battery pack string, and a protection method thereof. The electronic type circuit breaker for the solar battery pack string comprises a main contact (1), a free tripping device (2), a shunt tripping device (3), a coil drive (4), a fault judge unit (5), a voltage measuring and conditioning unit (6), a current measuring and conditioning unit (7), a manual tripping device (8) and a manual switching-on device (9), wherein the voltage measuring and conditioning unit (6) and the current measuring and conditioning unit (7) are respectively connected with the fault judge unit (5) which is also connected with the coil drive (4); the coil drive (4) is also connected with the shunt tripping device (3); the shunt tripping device (3), the manual tripping device (8) and the manual switching-on device (9) are respectively connected with the free tripping device (2); and the free tripping device (2) is connected with the main contact (1). The electronic type circuit breaker for the solar battery pack string is capable of rapidly judging the faults such as short circuit, reversed connection, overvoltage and the like of the solar battery pack string and effectively cutting off the circuit of the solar battery pack string so as to protect components and cables as well as preventing fire caused by electric arc; in addition, the electronic type circuit breaker has the functions of manually switching on and off and switching off by controlling the circuit breaker in a remote way.
Description
Technical field
The utility model relates to solar photovoltaic technology, low voltage electrical apparatus technology, and particularly a kind of circuit breaker and guard method that is used for the solar module string can be widely used in the renewable energy system of all kinds of use solar components.
Background technology
At global warming, under the urgent situation of Ecological environment worsening and conventional energy resource shortage of resources, be that the renewable energy power generation technology that core makes up obtains fast development and application with all kinds of solar components.But in the solar power station of going into operation, the fire generation that the electric fault of solar components string direct current system is often arranged and cause.Original solar components protection equipment and counnter attack exist defective and deficiency; One of reason is to be not sure of short circuit and draws faults such as electric arc and cut-out group serializer circuit; Cause cable, equipment or assembly to damage; Reduce the utilance of solar energy resources, produced serious economy loss, influenced the promotion and application of solar tracking system.
Summary of the invention
To the problems referred to above; The utility model provides a kind of electronic breaker and guard method that is used for the solar module string; Can judge faults such as the reversal connection of solar battery group string, short circuit, overvoltage fast; Effectively cut off the solar battery group serializer circuit, protection assembly and cable, prevent electric arc and cause the generation of fire manual divide-shut brake function, remote control cut-out function are arranged in addition.
A kind of electronic breaker that is used for the solar module string; Comprise main contacts, trip free device, shunt release, coil drive, fault distinguishing unit, voltage measurement and conditioning unit, current measurement and conditioning unit, hand trip gear and closing by hand device; Said voltage measurement links to each other with said fault distinguishing unit respectively with the conditioning unit with conditioning unit, current measurement, and said fault distinguishing unit also is connected with coil drive; Said coil drive also is connected with shunt release; Said shunt release, hand trip gear, closing by hand device are connected with the trip free device respectively; Said trip free device is connected with main contacts.
A kind of guard method that is used for the circuit breaker of solar module string; At first current measurement will be picked up group crosstalk stream signal with the conditioning unit and sent into the signal fault judgement unit, and voltage measurement will be picked up the group crosstalk with the conditioning unit and pressed signal to send into the signal fault judgement unit, when the solar module serializer circuit is short-circuited; Judged in the fault distinguishing unit: current signal * resistance constant ﹢ voltage constant ﹤ voltage signal relation is set up; Order coil drive unit action drives shunt release, shunt release triggers the action of trip free device and cuts off main contacts, when the reversal connection of solar module string both positive and negative polarity; Or when backward current occurring; Judge that in the fault distinguishing unit assembly crosstalk presses signal, current signal direction reverse, order coil drive unit action drives shunt release, shunt release triggers the action of trip free device and cuts off main contacts; When solar module crosstalk pressure exceeds normal range (NR); Judge that in the fault distinguishing unit solar module crosstalk pressure signal surpasses higher limit, order coil drive unit action drives shunt release, shunt release triggers the action of trip free device and the cut-out main contacts.
Be used for the electronic breaker guard method of solar module string; When the reversal connection of solar module string both positive and negative polarity when circuit constitutes the loop or solar module crossfire when crossing backward current; Judge that in the fault distinguishing unit solar module crosstalk presses signal, current signal direction reverse; Fault distinguishing cell command coil drive action drives shunt release, shunt release trigger the action of trip free device and cut off main contacts.
Be used for the electronic breaker guard method of solar module string; When solar module crosstalk pressure exceeds normal range (NR); Judge that in the fault distinguishing unit solar module crosstalk pressure signal surpasses higher limit; Fault distinguishing cell command coil drive unit action drives shunt release, shunt release trigger the action of trip free device and cut off main contacts.
Be used for the electronic breaker guard method of solar module string, when the solar module string is installed or overhauled, use hand trip gear to trigger action of trip free device and cut-out main contacts; Use the closing by hand device, trigger the action of trip free device and closed main contacts, and then reach the purpose of protection solar components string and operator safety.
The electronic breaker that is used for the solar module string uses remote control separating brake function, through the action of control line Long-distance Control shunt release, and then triggers the action of trip free device and the cut-out main contacts, realizes the function of Long-distance Control circuit breaker disjunction.
The useful achievement of the utility model is to be to carry out fault judgement and divide-shut brake control through measuring solar module string voltage and current signal; Realize error protections such as solar module string short circuit; The utility model guard method is when solar components serializer circuit failed because; Judge the establishment of " current signal * resistance constant ﹢ voltage constant ﹤ voltage signal " relation through measuring solar energy group string working point (voltage, electric current), triggering is cut off main contacts and is protected the solar components string.The utility model is realized solar module string error protection, and considers installation requirement, has strengthened the fail safe and the reliability of solar power generation.And the consideration installation requirement, strengthened the fail safe and the reliability of solar power generation.
Description of drawings
Fig. 1 is the system principle diagram of the utility model.
Fig. 2 is that the circuit breaker of the utility model is to solar components string protection range figure.
Embodiment
For inner characteristic and the beneficial effect that makes the utility model is easier to understand, it is elaborated below in conjunction with instance and accompanying drawing.
Fig. 1 shows a kind of principle flow chart that is used for the electronic breaker of solar module string of the utility model.As shown in the figure, the circuit breaker of the utility model comprises: main contacts 1, trip free device 2, shunt release 3, coil drive unit 4, fault distinguishing unit 5, voltage measurement and conditioning unit 6, current measurement and conditioning unit 7, hand trip gear 8 and closing by hand device 9.Voltage measurement links to each other with said fault distinguishing unit 5 respectively with conditioning unit 7 with conditioning unit 6, current measurement, and fault distinguishing unit 5 also is connected with coil drive 4; Coil drive 4 also is connected with shunt release 3; Shunt release 3, hand trip gear 8, closing by hand device 9 are connected with trip free device 2 respectively; Trip free device 2 is connected with main contacts 1.
The solar module string is connected in series with circuit breaker, and current measurement will be picked up group crosstalk stream signal and send into signal fault judgement unit 5 with conditioning unit 7, and voltage measurement will be picked up the group crosstalk with conditioning unit 6 and pressed signal and send into signal fault judgement unit 5.When solar components serializer circuit failed because; Solar components string as shown in Figure 2 working point gets into the short-circuit protection district; 5 judge current signal * resistance constant ﹢ voltage constant ﹤ voltage signal relation establishment in the fault distinguishing unit; Order coil drive unit 4 action drives shunt releases 3, shunt release 3 triggers trip free device moving 2 and does and cut-out main contacts 1.
When the both positive and negative polarity reversal connection of solar components string when circuit constitutes the loop or solar components crossfire when crossing backward current; Solar components string as shown in Figure 2 working point gets into the reverse connecting protection district; 5 judge that the assembly crosstalks press signals, current signal direction reverse in the fault distinguishing unit; Order coil drive unit 4 action drives shunt releases 3, shunt release 3 trigger 2 actions of trip free device and cut off main contacts 1.
When solar module voltage exceeds normal range (NR); Solar components string as shown in Figure 2 working point gets into the overvoltage protection district; 5 judge that assembly crosstalk pressure signal surpasses higher limit in the fault distinguishing unit; Order coil drive unit 4 action drives shunt releases 3, shunt release 3 trigger 2 actions of trip free device and cut off main contacts 1.
When the solar components string is installed or overhauled, can use hand trip gear 8 to trigger 2 actions of trip free device and cut-out main contacts 1; Can use closing by hand device 9, trigger 2 actions of trip free device and closed main contacts 1.And then reach the purpose of protection solar components string and operator safety.
Further, a kind of circuit breaker that is used for the solar module string of the utility model can use remote control separating brake function.Can move through control line Long-distance Control shunt release 3, and then trigger 2 actions of trip free device and cut off main contacts 1, realize the function of Long-distance Control circuit breaker disjunction.
Claims (1)
1. electronic breaker that is used for the solar module string; It is characterized in that comprising: main contacts (1), trip free device (2), shunt release (3), coil drive (4), fault distinguishing unit (5), voltage measurement and conditioning unit (6), current measurement and conditioning unit (7), hand trip gear (8) and closing by hand device (9); Said voltage measurement links to each other with said fault distinguishing unit (5) respectively with conditioning unit (7) with conditioning unit (6), current measurement, and said fault distinguishing unit (5) also is connected with coil drive (4); Said coil drive (4) also is connected with shunt release (3); Said shunt release (3), hand trip gear (8), closing by hand device (9) are connected with trip free device (2) respectively; Said trip free device (2) is connected with main contacts (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201634129U CN202111031U (en) | 2011-05-20 | 2011-05-20 | Electronic type circuit breaker for solar battery pack string |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201634129U CN202111031U (en) | 2011-05-20 | 2011-05-20 | Electronic type circuit breaker for solar battery pack string |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202111031U true CN202111031U (en) | 2012-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201634129U Expired - Lifetime CN202111031U (en) | 2011-05-20 | 2011-05-20 | Electronic type circuit breaker for solar battery pack string |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202111031U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789932A (en) * | 2011-05-20 | 2012-11-21 | 中环光伏系统有限公司 | Electronic circuit breaker for solar cell module string and protection method |
-
2011
- 2011-05-20 CN CN2011201634129U patent/CN202111031U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789932A (en) * | 2011-05-20 | 2012-11-21 | 中环光伏系统有限公司 | Electronic circuit breaker for solar cell module string and protection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Head of Gcl Solar Limited Document name: Notification that Application Deemed not to be Proposed |
|
| ASS | Succession or assignment of patent right |
Owner name: NANJING CNI23 ENERGY ENGINEERING CO., LTD. Free format text: FORMER OWNER: GCL SOLAR CO., LTD. Effective date: 20130816 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210000 NANJING, JIANGSU PROVINCE TO: 210008 NANJING, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20130816 Address after: 43, building 1, 210008 Zhujianglu Road, Xuanwu District, Jiangsu, Nanjing Patentee after: Nanjing CNI23 Energy Engineering Co., Ltd. Address before: 210000 Jiangning Province Economic and Technological Development Zone, Jiangsu City, No. Sheng Tai Road, No. 68 Patentee before: GCL Solar System Limited |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |
|
| CX01 | Expiry of patent term |