CN204360670U - For the photo-voltaic power supply physical simulating device of dynamic analog test - Google Patents
For the photo-voltaic power supply physical simulating device of dynamic analog test Download PDFInfo
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- CN204360670U CN204360670U CN201420833282.9U CN201420833282U CN204360670U CN 204360670 U CN204360670 U CN 204360670U CN 201420833282 U CN201420833282 U CN 201420833282U CN 204360670 U CN204360670 U CN 204360670U
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- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 238000011030 bottleneck Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 5
- 238000005094 computer simulation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000009114 investigational therapy Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000001681 protective Effects 0.000 description 1
Abstract
The utility model is provided for the photo-voltaic power supply physical simulating device of dynamic analog test, described device comprises, alternating current-direct current rectifying power supply apparatus, the first intelligent DC power supply, the second intelligent DC power supply, battery rack, isolating transformer, the first unidirectional inverter, the second unidirectional inverter, two way convertor and switch cubicle; Described alternating current-direct current rectifying power supply apparatus is connected with the first intelligent DC power supply and the second intelligent DC power supply respectively; Described first intelligent DC power supply is connected successively with described first unidirectional inverter, isolating transformer and switch cubicle, described second intelligent DC power supply is connected successively with described second unidirectional inverter, isolating transformer and switch cubicle, and described battery rack is connected successively with described two way convertor and switch cubicle; Solve the bottleneck problem that cannot realize photovoltaic generation in the dynamic similation physical system of laboratory.
Description
Technical field
The utility model relates to photo-voltaic power supply physical simulating device, is specifically related to the photo-voltaic power supply physical simulating device for dynamic analog test.
Background technology
Along with environmental pollution, day by day the highlighting of energy shortage problem, photo-voltaic power supply distributed generation technology obtains in a power distribution system to be applied more and more widely.But this type of distributed photovoltaic power serves new technical barrier to electrical network band thereupon, such as, improve the short-circuit current level of node near it and the relay protection setting that occurs and fixed value adjusting difficulty.At present, the relay protection of most of power distribution network is by design and operation based on radial electrical network, and after access distributed power source, power distribution network is turned by single power supply; Become Double-End Source, even multiterminal Power supply; New challenge is brought thus to power distribution network operation and relay protection.
For the development of distributed power source, China has also formulated a series of relevant policy and standard.2005, GB " requirement of photovoltaic system interconnection technology " and " photo-voltaic power generation station access power system technology regulation " are issued; Within 2006, issue GB " photovoltaic (PV) system grid interface characteristic "; Within 2009, carry out State Grid Corporation of China's company standard " photovoltaic plant access electric power network technique regulation " (trying) and " wind energy turbine set access electric power network technique regulation "; 2010, issue State Grid Corporation of China's company standard " distributed power source access electric power network technique regulation ", " Miniature Power Unit access electric power network technique regulation " (trying) and " accumulator system access distribution network technology regulation "; 2011, country issued " distributed power source access power distribution network runs and controls specification ".
Dynamic power system simulations test is the unified important research environment of research power train and instrument; thus the attention of Operation of Electric Systems department is obtained; promulgate the People's Republic of China's " DL/T871-2004 relay protection of power system product dynamic simulation test " power industry standard, " GB/T26846-2011 relay protection of power system product dynamic simulation test " national standard respectively at 2004 and 2011, carried out networking dynamic simulation test for the protective device newly developed simultaneously and detect.Therefore the test of electric system dynamic model has irreplaceable status in electric system research.
Utility model content
For the problem of prior art, the utility model is provided for the photo-voltaic power supply physical simulating device of dynamic analog test, and it comprises alternating current-direct current rectifying power supply apparatus, the first intelligent DC power supply, the second intelligent DC power supply, battery rack, isolating transformer, the first unidirectional inverter, the second unidirectional inverter, two way convertor and switch cubicle; Solve the bottleneck problem that cannot realize photovoltaic generation in the dynamic similation physical system of laboratory, for the research of further investigation photo-voltaic power supply access electric system provides technical support.
The purpose of this utility model adopts following technical proposals to realize:
For the photo-voltaic power supply physical simulating device of dynamic analog test, described device comprises: alternating current-direct current rectifying power supply apparatus, the first intelligent DC power supply, the second intelligent DC power supply, battery rack, isolating transformer, the first unidirectional inverter, the second unidirectional inverter, two way convertor and switch cubicle; Described alternating current-direct current rectifying power supply apparatus is connected with the first intelligent DC power supply and the second intelligent DC power supply respectively; Described first intelligent DC power supply is connected successively with described first unidirectional inverter, isolating transformer and switch cubicle, described second intelligent DC power supply is connected successively with described second unidirectional inverter, isolating transformer and switch cubicle, and described battery rack is connected successively with described two way convertor and switch cubicle.
Preferably, described alternating current-direct current rectifying power supply apparatus is connected with insert experiment room public electric wire net by power cable.
Preferably, described first intelligent DC power supply and the second intelligent DC power supply comprise programmable control direct supply, display device and keyboard input devices.
Preferably, described alternating current-direct current rectifying power supply apparatus and the first intelligent DC power supply and the second intelligent DC power supply form photo-voltaic power supply simulated assembly.
Preferably, described battery rack is made up of multiple LiFePO4 cell.
Preferably, described two way convertor, isolating transformer are connected by power cable successively with switch cubicle.
Further, described switch cubicle controls disconnection and the access of electrical network; Described isolating transformer is connected with described first unidirectional inverter and the second unidirectional inverter respectively, is connected after isolating switch with switch cabinet bus.
Compared with prior art, the beneficial effects of the utility model are:
1. the utility model solves the bottleneck problem that photovoltaic generation correlative study cannot realize in the dynamic similation physical system of laboratory; For further investigation photo-voltaic power supply access electric system provides technical support.
2. be that the correlative studys such as the operation characteristic of photovoltaic generation provide a kind of dynamic similation physical simulation method; Achieve and carry out the research of relay protection device dynamic simulation in laboratory, developing in a healthy way to guarantee China distributed photovoltaic power has great importance.
3. the utility model is that comprehensively carrying out of photo-voltaic power supply relay protection dynamic analog test testing is laid a good foundation, significant for the development ensured and advance new forms of energy healthy, safe.
Accompanying drawing explanation
Fig. 1 is the structural representation of the photo-voltaic power supply physical simulating device of dynamic analog test.
Embodiment
Below with reference to accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, for the photo-voltaic power supply physical simulating device of dynamic analog test, described device comprises: alternating current-direct current rectifying power supply apparatus, the first intelligent DC power supply, the second intelligent DC power supply, battery rack, isolating transformer, the first unidirectional inverter, the second unidirectional inverter, two way convertor and switch cubicle; Described alternating current-direct current rectifying power supply apparatus is connected with the first intelligent DC power supply and the second intelligent DC power supply respectively; Described first intelligent DC power supply is connected successively with described first unidirectional inverter, isolating transformer and switch cubicle, described second intelligent DC power supply is connected successively with described second unidirectional inverter, isolating transformer and switch cubicle, and described battery rack is connected successively with described two way convertor and switch cubicle.
Wherein, alternating current-direct current rectifying power supply apparatus is used for grid alternating current rectifying conversion is direct current; First intelligent DC power supply and the second intelligent DC power supply can according to program output voltage current values; Battery rack is the energy storage device in simulation photovoltaic power supply system; Isolating transformer, makes primary side and the electric of secondary side insulate completely; Two way convertor for realize photo-voltaic power supply from guipure loading functional; The direct current energy of photo-voltaic power supply can be converted into the equipment of the AC energy needed for actual conditions by first and second unidirectional inverter; Switch cubicle for switch photo-voltaic power supply also/from net function.
Described alternating current-direct current rectifying power supply apparatus is connected with insert experiment room public electric wire net by power cable.
Described first intelligent DC power supply and the second intelligent DC power supply comprise programmable control direct supply, display device and keyboard input devices.
Described alternating current-direct current rectifying power supply apparatus and the first intelligent DC power supply and the second intelligent DC power supply form photo-voltaic power supply simulated assembly.
Described battery rack is made up of multiple LiFePO4 cell.
Described two way convertor, isolating transformer are connected by power cable successively with switch cubicle.
Described switch cubicle controls disconnection and the access of electrical network; Described isolating transformer is connected with described first unidirectional inverter and the second unidirectional inverter respectively, is connected after isolating switch with switch cabinet bus.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; those of ordinary skill in the field still can modify to embodiment of the present utility model with reference to above-described embodiment or equivalent replacement; these do not depart from any amendment of the utility model spirit and scope or equivalent replacement, are all applying within the claims awaited the reply.
Claims (7)
1. for the photo-voltaic power supply physical simulating device of dynamic analog test, it is characterized in that, described device comprises: alternating current-direct current rectifying power supply apparatus, the first intelligent DC power supply, the second intelligent DC power supply, battery rack, isolating transformer, the first unidirectional inverter, the second unidirectional inverter, two way convertor and switch cubicle; Described alternating current-direct current rectifying power supply apparatus is connected with the first intelligent DC power supply and the second intelligent DC power supply respectively; Described first intelligent DC power supply is connected successively with described first unidirectional inverter, isolating transformer and switch cubicle, described second intelligent DC power supply is connected successively with described second unidirectional inverter, isolating transformer and switch cubicle, and described battery rack is connected successively with described two way convertor and switch cubicle.
2. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 1, is characterized in that: described alternating current-direct current rectifying power supply apparatus is connected with insert experiment room public electric wire net by power cable.
3. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 1, is characterized in that: described first intelligent DC power supply and the second intelligent DC power supply comprise programmable control direct supply, display device and keyboard input devices.
4. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 1, is characterized in that: described alternating current-direct current rectifying power supply apparatus and the first intelligent DC power supply and the second intelligent DC power supply form photo-voltaic power supply simulated assembly.
5. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 1, is characterized in that: described battery rack is made up of multiple LiFePO4 cell.
6. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 1, is characterized in that: described two way convertor, isolating transformer are connected by power cable successively with switch cubicle.
7. the photo-voltaic power supply physical simulating device for dynamic analog test according to claim 6, is characterized in that: described switch cubicle controls disconnection and the access of electrical network; Described isolating transformer is connected with described first unidirectional inverter and the second unidirectional inverter respectively, is connected after isolating switch with switch cabinet bus.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420833282.9U CN204360670U (en) | 2014-12-24 | 2014-12-24 | For the photo-voltaic power supply physical simulating device of dynamic analog test |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420833282.9U CN204360670U (en) | 2014-12-24 | 2014-12-24 | For the photo-voltaic power supply physical simulating device of dynamic analog test |
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| CN204360670U true CN204360670U (en) | 2015-05-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256020A (en) * | 2018-11-06 | 2019-01-22 | 吴基玄 | A kind of micro-capacitance sensor simulation system based on three-phase inverter |
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2014
- 2014-12-24 CN CN201420833282.9U patent/CN204360670U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109256020A (en) * | 2018-11-06 | 2019-01-22 | 吴基玄 | A kind of micro-capacitance sensor simulation system based on three-phase inverter |
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