CN204244168U - PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system - Google Patents
PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system Download PDFInfo
- Publication number
- CN204244168U CN204244168U CN201420699187.4U CN201420699187U CN204244168U CN 204244168 U CN204244168 U CN 204244168U CN 201420699187 U CN201420699187 U CN 201420699187U CN 204244168 U CN204244168 U CN 204244168U
- Authority
- CN
- China
- Prior art keywords
- circuit breaker
- output
- input
- channel
- pid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001629 suppression Effects 0.000 title abstract 3
- 230000004069 differentiation Effects 0.000 title 1
- 230000010354 integration Effects 0.000 title 1
- 230000000452 restraining effect Effects 0.000 claims description 11
- 230000010287 polarization Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Photovoltaic Devices (AREA)
Abstract
The utility model provides a PID suppression device of a bipolar photovoltaic array system, which comprises a control cabinet, a first breaker QF1, a second breaker QF2 and an interlocking device; the control cabinet is provided with four wire inlet ports and three wire outlet ports, and the first breaker QF1 and the second breaker QF2 are provided with four channels; the interlocking device is installed in the control cabinet and controls the first breaker QF1 and the second breaker QF2 to be in an interlocking state. The utility model discloses a PID suppression device of bipolar photovoltaic array system can effectively restrain the PID phenomenon, need not to reform transform current device, and the cost is lower, and has two kinds of modes manual and automatic.
Description
Technical field
The utility model relates to a kind of optimization device for photovoltaic array system, especially a kind of PID restraining device for bipolar system photovoltaic array system.
Background technology
Along with the change of world energy sources general layout, the focus that photovoltaic generation day by day becomes various countries' further investigation, greatly develops.PID (Potential Induced Degradation, current potential brings out decay) phenomenon or Surface Polarization (Surface Polarization) are the unfavorable factors that in current photovoltaic industry, affects crystal silicon cell assembly efficiency utilization.When photovoltaic module normally uses, there is positive voltage or over the ground negative voltage over the ground in system, cause assembly surface charge buildup and cause power attenuation, in the short time, as occurred some months or one or two years, assembly power output sharply reduces phenomenon.For the PID phenomenon that photovoltaic array is exclusive, at battery surface or one deck silica dioxide coating with holes between passivation layer and battery, can be added, form a turning circuit and prevent harmful polarization, but this method increase battery manufacture cost and reduce the efficiency of battery to a certain extent.Also can use the inverter of assembly voltage to earth or use plus earth module and band isolating transformer in resistance change system, but this method makes the use of photovoltaic module there is limitation, and band isolating transformer had both added cost and had also reduced system effectiveness.
Summary of the invention
The technical problems to be solved in the utility model is existing photovoltaic system when suppressing PID phenomenon, needs to transform battery itself or inverter, not only increase cost but also also reduce system effectiveness.
In order to solve the problems of the technologies described above, the utility model provides a kind of PID restraining device of bipolar system photovoltaic array system, comprises control cubicle, the first circuit breaker Q F1, the second circuit breaker Q F2 and interlock; Control cubicle is provided with four inlet wire ports and three outlet ports, four inlet wire ports are connected with the first passage input of the first circuit breaker Q F1, second channel input, third channel input and four-way input respectively, and three outlet ports are connected with the first passage output of the first circuit breaker Q F1, second channel output and four-way output respectively; The first passage input of the first circuit breaker Q F1 is connected with the first passage input of the second circuit breaker Q F2, the second channel input of the first circuit breaker Q F1 is connected with the second channel input of the second circuit breaker Q F2, the third channel input of the first circuit breaker Q F1 is connected with the third channel input of the second circuit breaker Q F2, and the four-way input of the first circuit breaker Q F1 is connected with the four-way input of the second circuit breaker Q F2; The first passage output of the first circuit breaker Q F1 is connected with the third channel output of the second circuit breaker Q F2, be connected with the first passage output of the second circuit breaker Q F2 and four-way output after the second channel output of the first circuit breaker Q F1 is connected with the output of third channel, the four-way output of the first circuit breaker Q F1 is connected with the second channel output of the second circuit breaker Q F2 again; Interlock is arranged in control cubicle, and controls the first circuit breaker Q F1 and the second circuit breaker Q F2 is interlocking state.
Adopt PID restraining device of the present utility model without the need to improving battery itself or inverter, this device is only needed to be connected in existing bipolar system photovoltaic array, save the cost that system large area is improved, and be connected in series circuit breaker in circuit because PID restraining device of the present utility model only have employed, so also can not the efficiency of influential system; Be carved with and only have a circuit breaker to be in "on" position when adopting interlock to ensure any, improve the fail safe of photovoltaic power supply; First circuit breaker Q F1 is connected according to connected mode of the present utility model with each output of the second circuit breaker Q F2, when interlock switches, the output state of three outlet ports can be switched, effectively can suppress the PID phenomenon of photovoltaic array.
As further restriction scheme of the present utility model, interlock is mechanical type interlock or electric interlock.Adopt mechanical type interlock reliability high, adopt electric interlock easily to realize, simple flexibly, and two circuit breakers of interlocking can be installed at diverse location.
As further improvement of the utility model scheme, also comprise controller, sunlight sensor and radio receiving transmitting module, first circuit breaker Q F1 is connected with the signal input part of controller with the auxiliary contact of the second circuit breaker Q F2, the two paths of signals output of controller be connected with the coil circuit of the second circuit breaker Q F2 with the first circuit breaker Q F1 respectively, sunlight sensor is connected with the data acquisition port of controller, and radio receiving transmitting module is connected with the input/output port of controller.Adopt sunlight sensor can the current sunlight state of Real-time Collection, and controlled the "on" position of two circuit breakers according to current sunlight state by controller, setting software interlocking simultaneously; Adopt and the auxiliary contact of circuit breaker are all connected with controller, controller can be facilitated to grasp current "on" position in real time; Adopt radio receiving transmitting module can realize remote command transmission and the uploading of current "on" position, realize remote-controllable.
The beneficial effects of the utility model are: (1) adopts PID restraining device of the present utility model without the need to improving battery itself or inverter, this device is only needed to be connected in existing bipolar system photovoltaic array, save the cost that system large area is improved, and be connected in series circuit breaker in circuit because PID restraining device of the present utility model only have employed, so also can not the efficiency of influential system; (2) be carved with and only have a circuit breaker to be in "on" position when adopting interlock to ensure any, improve the fail safe of photovoltaic power supply; (3) the first circuit breaker Q F1 is connected according to connected mode of the present utility model with each output of the second circuit breaker Q F2, when interlock switches, the output state of three outlet ports can be switched, effectively can suppress the PID phenomenon of photovoltaic array.
Accompanying drawing explanation
Fig. 1 is mechanical type interlocking structure schematic diagram of the present utility model;
Fig. 2 is remote control structure schematic diagram of the present utility model;
Fig. 3 is circuit for remotely controlling structural representation of the present utility model.
Embodiment
As shown in Figure 1, the utility model provides a kind of PID restraining device of bipolar system photovoltaic array system, comprises control cubicle, the first circuit breaker Q F1, the second circuit breaker Q F2 and interlock; Control cubicle is provided with four inlet wire ports and three outlet ports, four inlet wire ports are connected with the first passage input of the first circuit breaker Q F1, second channel input, third channel input and four-way input respectively, and three outlet ports are connected with the first passage output of the first circuit breaker Q F1, second channel output and four-way output respectively; The first passage input of the first circuit breaker Q F1 is connected with the first passage input of the second circuit breaker Q F2, the second channel input of the first circuit breaker Q F1 is connected with the second channel input of the second circuit breaker Q F2, the third channel input of the first circuit breaker Q F1 is connected with the third channel input of the second circuit breaker Q F2, and the four-way input of the first circuit breaker Q F1 is connected with the four-way input of the second circuit breaker Q F2; The first passage output of the first circuit breaker Q F1 is connected with the third channel output of the second circuit breaker Q F2, be connected with the first passage output of the second circuit breaker Q F2 and four-way output after the second channel output of the first circuit breaker Q F1 is connected with the output of third channel, the four-way output of the first circuit breaker Q F1 is connected with the second channel output of the second circuit breaker Q F2 again; Interlock is arranged in control cubicle, and controls the first circuit breaker Q F1 and the second circuit breaker Q F2 is interlocking state.
Wherein, interlock is mechanical type interlock or electric interlock.Mechanical type interlock can pass through mechanical lever, when first circuit breaker Q F1 is closed a floodgate, the second circuit breaker Q F2 opens a sluice gate, or the second circuit breaker Q F2 closes a floodgate when the first circuit breaker Q F1 opens a sluice gate, electric interlock realizes interlocking by the contact of relay and contactor, and Operation and Maintenance personnel can carry out manual switchover at the scene.
When installing device of the present utility model, for middle low power system, can by the rear class of device serial connection of the present utility model at two groups of header boxs, export again ± Ud is to photovoltaic DC-to-AC converter, for high-power system, can by the rear class of device serial connection of the present utility model at two groups of DC cabinets, then to export ± Ud is to photovoltaic DC-to-AC converter, need when wiring the inlet wire port of four on control cubicle to hold with the two-way circuit A+ of two groups of header boxs or two groups of DC cabinets respectively and to hold with A-and B+ holds to hold with B-and is connected, + the Ud that the port be connected with the first passage output of the first circuit breaker Q F1 in three outlet ports is connected to photovoltaic DC-to-AC converter holds,-the Ud that the port be connected with the second channel output of the first circuit breaker Q F1 is connected to photovoltaic DC-to-AC converter holds, the port be connected with the four-way output of the first circuit breaker Q F1 is connected to grounding system, such photovoltaic array ± Ud end is held alternately regular with the 0V of grounding system, effectively can suppress the PID phenomenon of photovoltaic array.
As shown in Figures 2 and 3, in order to realize remote control function, device of the present utility model also comprises controller, sunlight sensor and radio receiving transmitting module, first circuit breaker Q F1 is connected with the signal input part of controller with the auxiliary contact of the second circuit breaker Q F2, the two paths of signals output of controller be connected with the coil circuit of the second circuit breaker Q F2 with the first circuit breaker Q F1 respectively, sunlight sensor is connected with the data acquisition port of controller, and radio receiving transmitting module is connected with the input/output port of controller.
By the numerical value of sunlight sensor Real-time Collection surround lighting, when controller judges surround lighting numerical value lower than threshold value, just be judged as entering night, so the automatic switchover of the first circuit breaker Q F1 and the second circuit breaker Q F2 can be realized by controller, feed back respective "on" position by the auxiliary contact of the first circuit breaker Q F1 and the second circuit breaker Q F2 simultaneously, and the "on" position uploaded in real time by radio receiving transmitting module and assign the first circuit breaker Q F1 and the second circuit breaker Q F2 and control order.
Claims (3)
1. a PID restraining device for bipolar system photovoltaic array system, is characterized in that: comprise control cubicle, the first circuit breaker Q F1, the second circuit breaker Q F2 and interlock; Described control cubicle is provided with four inlet wire ports and three outlet ports, described four inlet wire ports are connected with the first passage input of the first circuit breaker Q F1, second channel input, third channel input and four-way input respectively, and described three outlet ports are connected with the first passage output of the first circuit breaker Q F1, second channel output and four-way output respectively; The first passage input of described first circuit breaker Q F1 is connected with the first passage input of the second circuit breaker Q F2, the second channel input of described first circuit breaker Q F1 is connected with the second channel input of the second circuit breaker Q F2, the third channel input of described first circuit breaker Q F1 is connected with the third channel input of the second circuit breaker Q F2, and the four-way input of described first circuit breaker Q F1 is connected with the four-way input of the second circuit breaker Q F2; The first passage output of described first circuit breaker Q F1 is connected with the third channel output of the second circuit breaker Q F2, be connected with the first passage output of the second circuit breaker Q F2 and four-way output after the second channel output of described first circuit breaker Q F1 is connected with the output of third channel, the described four-way output of the first circuit breaker Q F1 is connected with the second channel output of the second circuit breaker Q F2 again; Described interlock is arranged in control cubicle, and controls the first circuit breaker Q F1 and the second circuit breaker Q F2 is interlocking state.
2. the PID restraining device of bipolar system photovoltaic array system according to claim 1, is characterized in that: described interlock is mechanical type interlock or electric interlock.
3. the PID restraining device of bipolar system photovoltaic array system according to claim 1, it is characterized in that: also comprise controller, sunlight sensor and radio receiving transmitting module, described first circuit breaker Q F1 is connected with the signal input part of controller with the auxiliary contact of the second circuit breaker Q F2, the two paths of signals output of described controller be connected with the coil circuit of the second circuit breaker Q F2 with the first circuit breaker Q F1 respectively, described sunlight sensor is connected with the data acquisition port of controller, and described radio receiving transmitting module is connected with the input/output port of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699187.4U CN204244168U (en) | 2014-11-19 | 2014-11-19 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699187.4U CN204244168U (en) | 2014-11-19 | 2014-11-19 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204244168U true CN204244168U (en) | 2015-04-01 |
Family
ID=52773607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699187.4U Expired - Fee Related CN204244168U (en) | 2014-11-19 | 2014-11-19 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204244168U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579156A (en) * | 2014-11-19 | 2015-04-29 | 南京信息职业技术学院 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
| CN106656021A (en) * | 2016-11-28 | 2017-05-10 | 广东兆能新能源有限公司 | Anti-PID (Potential Induced Degradation) combiner box system and realization method thereof |
-
2014
- 2014-11-19 CN CN201420699187.4U patent/CN204244168U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104579156A (en) * | 2014-11-19 | 2015-04-29 | 南京信息职业技术学院 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
| CN104579156B (en) * | 2014-11-19 | 2017-02-22 | 南京信息职业技术学院 | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system |
| CN106656021A (en) * | 2016-11-28 | 2017-05-10 | 广东兆能新能源有限公司 | Anti-PID (Potential Induced Degradation) combiner box system and realization method thereof |
| CN106656021B (en) * | 2016-11-28 | 2018-10-12 | 广东兆能新能源有限公司 | A kind of anti-PID header boxs system and its implementation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103488159A (en) | Distribution box type smart home terminal and comprehensive protection controller | |
| US20150042176A1 (en) | Multi-functional direct current ice melting automatic switching circuit and switching method thereof | |
| CN108682579B (en) | Remote control method for power supply of isolating switch motor | |
| CN105356445A (en) | PID (proportion, integration and differentiation) effect inhibition device for photovoltaic power generation system and photovoltaic power generation system | |
| CN108528249A (en) | Team control charging system and matrix switch module | |
| CN107947251A (en) | The anti-rush of current of the whole star of composite bus system satellite adds power-off system | |
| CN204244168U (en) | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system | |
| CN203071637U (en) | DC power supply connection control apparatus | |
| CN206099504U (en) | Device is side by side divided to low voltage network intelligence | |
| CN114172035A (en) | Intelligent automatic voltage-boosting transformer without power failure of high-voltage line and control method thereof | |
| CN104579156A (en) | PID (proportion integration differentiation) suppression device of bipolar photovoltaic array system | |
| CN204289070U (en) | A kind of box type combined transformer | |
| CN203850833U (en) | Unified power flow controller installation circuit in transformer station with multiple lines | |
| CN103986159B (en) | There is the mounting circuit of THE UPFC in multi transformer station | |
| CN104467651A (en) | Topological structure for preventing photovoltaic array PID | |
| WO2022179616A1 (en) | Electric vehicle charging system | |
| CN108767846A (en) | Double-power supply switching device | |
| CN204905673U (en) | A station service wiring system for thermal power factory | |
| CN203942491U (en) | A kind of photovoltaic array conflux box | |
| CN201910661U (en) | Bypass power supply and conversion power supply switching circuit | |
| CN203218987U (en) | Photovoltaic grid-connected power generation control system | |
| CN204993141U (en) | Multi -functional generator excitation control ware | |
| CN202872698U (en) | Signal control circuit and valve performer | |
| CN106292562A (en) | A kind of 10KV power network line vicarious power taking chopper long distance control system | |
| CN204334120U (en) | SF 6gas-insulated switch controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160510 Address after: Road in Qixia District of Nanjing City, Jiangsu Province, No. 99 210023 Patentee after: CQC-TRUSTED TESTING TECHNOLOGY Co.,Ltd. Address before: Nanjing City, Jiangsu province 210023 City Xianlin University No. 99 Patentee before: Nanjing Vocational College of Information Technology |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150401 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |