CN102117570A - Intelligent photovoltaic simulation experimental system - Google Patents
Intelligent photovoltaic simulation experimental system Download PDFInfo
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- CN102117570A CN102117570A CN2010100224381A CN201010022438A CN102117570A CN 102117570 A CN102117570 A CN 102117570A CN 2010100224381 A CN2010100224381 A CN 2010100224381A CN 201010022438 A CN201010022438 A CN 201010022438A CN 102117570 A CN102117570 A CN 102117570A
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Abstract
The invention relates to an intelligent photovoltaic simulation experimental system, which consists of a photovoltaic cell array simulation system, a photovoltaic inverter and a grid-connected testing unit, wherein the photovoltaic cell array simulation system comprises a DC power supply, a personal computer (PC), an analogue/digital (A/D) conversion card and a D/A conversion card; the photovoltaic inverter comprises an inverter, an LCL filter and a digital controller; the grid-connected testing unit comprises an electric energy analyzer, a digital oscilloscope and a distribution network; the DC power supply is connected with the inverter, and is controlled by the PC integrated with the A/D and D/A conversion cards; the digital controller is connected with the PC integrated with the A/D and D/A conversion cards; the inverter is connected with the distribution network by the LCL filter; and the electric energy analyzer is connected together with the digital oscilloscope to the side, close to the distribution network, of the inverter. Compared with the prior art, the intelligent photovoltaic simulation experimental system has the advantages of low cost, function diversity, high cost performance and the like.
Description
Technical field
The present invention relates to a kind of new energy field semi-matter simulating system, especially relate to a kind of intelligent photovoltaic simulating experimental system.
Background technology
At the problem that current energy growing tension and environmental issue become increasingly conspicuous, sun power adopts the mode of generating electricity by way of merging two or more grid systems to become the our times Study on Technology focus that taps a new source of energy to the electrical network electric energy supplement as regenerative resource.Yet one side is because the initial outlay cost is big, and reasons such as economy return cycle length have photovoltaic parallel in system now except as national large-scale sample project, rely on outside the state subsidies ability construction application, also are difficult to promote as the family power plant for emergency.On the other hand, how each colleges and universities, scientific research institution and photovoltaic manufacturer are made of material object for the photovoltaic experimental system of scientific research and the foundation of research and development needs, and not only cost height, and function is limited, is difficult to give play to maximum utility.
Summary of the invention
Purpose of the present invention be exactly provide in order to overcome the defective that above-mentioned prior art exists that a kind of cost is low, diverse in function, intelligent photovoltaic simulating experimental system that cost performance is high.
Purpose of the present invention can be achieved through the following technical solutions: a kind of intelligent photovoltaic simulating experimental system, it is characterized in that, this system is by the photovoltaic battery array analogue system, the photovoltaic DC-to-AC converter and the test cell that is incorporated into the power networks are formed, described photovoltaic battery array analogue system comprises direct supply, PC, A/D and D/A transition card, described photovoltaic DC-to-AC converter comprises inverter, LCL wave filter and digitial controller, the described test cell that is incorporated into the power networks comprises the electric energy analyser, digital oscilloscope and power distribution network, described direct supply links to each other with inverter and is controlled by the PC that is integrated with A/D and D/A transition card, described digitial controller be integrated with the PC of A/D and link to each other with the D/A transition card, described inverter links to each other with power distribution network by the LCL wave filter, and described electric energy analyser and digital oscilloscope are connected inverter jointly near the power distribution network side.
The photovoltaic cell plate array that described direct supply can be simulated under different light, temperature, shade condition by PC control is exported, expensive and the running environment of avoiding actual photovoltaic panel array to make up is subjected to the defective of actual motion conditionality, can test different maximum power tracing (MPPT) algorithm.
Described A/D and D/A transition card collecting and measuring system voltage and current data, and produce voltage and current control reference signal.
Described photovoltaic DC-to-AC converter is made up of single-phase or three-phase inverter module, in order to test the various control function of single-phase or three-phase inverter.
The control system of described photovoltaic DC-to-AC converter is made up of PC and DSP card.
Described digitial controller adopts the TMS320f2812 evaluation board to realize that the major control chip is the dsp processor of 32 fixed point calculation.
The invention provides a kind of intelligent photovoltaic experimental system of hardware-in-the-loop simulation, it can simulate the photovoltaic cell plate array under running environment such as the different shade conditions of different light different temperatures, tests different maximum power tracing algorithms; Simultaneously can also move three-phase or single-phase grid-connected inverter; Different control strategies and different island effect detection algorithms can be tested, the functional diversity and the cost performance of experimental system can be improved to greatest extent.Compared with prior art, the present invention has following advantage:
(1) adopt direct supply by the photovoltaic cell plate array output of PC control simulation under different light, temperature, shade condition, expensive and the running environment of avoiding actual photovoltaic panel array to make up is subjected to the defective of actual motion conditionality, and can not be subjected to that conditionality such as time place is round-the-clock at any time carries out various experiments.
(2) with PC Windows as development environment, be target controller with dsp chip (TMS320f2812), can cooperate the commercialization trend of industry development of DSP to change upgrading.
(3) adopt C language or compositional language to write control program, and directly with burning program to the target controller test that experimentizes.Can carry out online adjustment to arbitrary parameter in the controller or variable by PC.
(4) can self-built routine library (library), develop control program in the modularity mode.
(5) with RS-232 (or RS485) as the communication interface between PC and the DSP.
(6) built-in multi-functional multichannel digital oscilloscope provides several different methods to show experimental variable, and can select four kinds of controller variablees to write down, observe and analyze arbitrarily.
(7) multiple graphics output interface: oscilloscope measurement waveform parameter data, can pass through Matlab graphical window or printer output.
(8) have automatic playing function, can supply experiment shows.
(9) provide html interface, can write experiment teaching materials and technical information voluntarily and integrate with development system.
Description of drawings
Fig. 1 is the synoptic diagram of system of the present invention.
Embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment
A kind of intelligent photovoltaic simulating experimental system, this simulating experimental system is by photovoltaic battery array analogue system A, the photovoltaic DC-to-AC converter B and the test cell C that is incorporated into the power networks form, described photovoltaic battery array analogue system A comprises direct supply 1, PC 2, A/D and D/A transition card 3, described photovoltaic DC-to-AC converter B comprises PWM inverter 4, LCL wave filter 5 and digitial controller 6, the described test cell C that is incorporated into the power networks comprises electric energy analyser 7, digital oscilloscope 8 and power distribution network 9, described direct supply 1 links to each other with PWM inverter 4 and is controlled by the PC 2 that is integrated with A/D and D/A transition card 3, described digitial controller 6 links to each other with the PC 2 that is integrated with A/D and D/A transition card 3, described PWM inverter 4 links to each other with power distribution network 9 by LCL wave filter 5, and described electric energy analyser 7 is connected the PWM inverter 4 that is incorporated into the power networks near power distribution network 9 sides jointly with digital oscilloscope 8.
Described photovoltaic cell plate array analogue system A is mainly used in test maximum power tracing algorithm in the photovoltaic DC-to-AC converter under different weather conditions.Described photovoltaic cell plate array analogue system A sets up in Matlab/Simulink according to the mathematical model of photovoltaic cell, can simulate M * N matrix all kinds solar battery array externally environmental baseline as: temperature, illumination, shade and shielded area etc. calculate the electric parameter characteristic as input.Input provides by the GUI interface among the Matlab, and the I-V of photovoltaic battery array and P-V family curve can both calculate and real-time simulation, can also simulate running environment such as partial occlusion.
Described A/D and D/A transition card 3 adopt PCI-DAS1002 type capture card to be used for collecting and measuring system voltage and current data, and produce voltage and current control reference signal.
Described photovoltaic DC-to-AC converter B can be made up of single-phase or three-phase inverter module, and its control system is made up of PC and DSP card, has the Matlab/Simulink program in the PC.The hardware components of photovoltaic combining inverter comprises that also signal conditioning unit (SCU) is used for the light-coupled isolation of control signal, three-phase (or single-phase) inverter bridge and has interface and protection card (IPC), LCL wave filter.Control system independently makes up, and wherein phaselocked loop (PLL) is used to make electric current and line voltage synchronous, can provide the electrical network initial phase angle to produce current reference signal.Current controller is the PI controller of a standard, also can add the electric voltage feed forward link in the control loop the inside.Adopt bipolarity PWM to regulate in the controller.
Described digitial controller 6 adopts the TMS320f2812 evaluation board to realize that the major control chip is the dsp processor of 32 fixed point calculation, has the 150MIPS travelling speed, RAM on the 18K chunk, 128K byte flash memory, SRAM under the 64K chunk.
The software implementation tool adopts TI C2000DSP Simulink instrument cases, its Simulink and TI C2000 developing instrument are integrated, be used for exploitation and check digit signal processing and controlling Design, can finish the design from the notion to the code, code generates and adopts the output of C language.Directly compiling in CCS, link and execution.In CCS, just can finish design, coding, debugging, analysis and the optimization of development sequence.Wherein, debugging can be undertaken by real-time Windows graphical window is online.
Described direct supply 1 adopts 300V 5A type power supply, for 4 power supplies of PWM inverter, is used to simulate the family grid-connected photovoltaic system of a 1.5kW.
Claims (6)
1. intelligent photovoltaic simulating experimental system, it is characterized in that, this system is by the photovoltaic battery array analogue system, the photovoltaic DC-to-AC converter and the test cell that is incorporated into the power networks are formed, described photovoltaic battery array analogue system comprises direct supply, PC, A/D and D/A transition card, described photovoltaic DC-to-AC converter comprises inverter, LCL wave filter and digitial controller, the described test cell that is incorporated into the power networks comprises the electric energy analyser, digital oscilloscope and power distribution network, described direct supply links to each other with inverter and is controlled by the PC that is integrated with A/D and D/A transition card, described digitial controller be integrated with the PC of A/D and link to each other with the D/A transition card, described inverter links to each other with power distribution network by the LCL wave filter, and described electric energy analyser and digital oscilloscope are connected inverter jointly near the power distribution network side.
2. a kind of intelligent photovoltaic simulating experimental system according to claim 1 is characterized in that, described direct supply is exported by the photovoltaic cell plate array that PC control is used to simulate under different light, temperature, shade condition.
3. a kind of intelligent photovoltaic simulating experimental system according to claim 1 is characterized in that, described A/D and D/A transition card collecting and measuring system voltage and current data, and produce voltage and current control reference signal.
4. a kind of intelligent photovoltaic simulating experimental system according to claim 1 is characterized in that described photovoltaic DC-to-AC converter is made up of single-phase or three-phase inverter module.
5. a kind of intelligent photovoltaic simulating experimental system according to claim 1 is characterized in that the hardware control system of described photovoltaic DC-to-AC converter is made up of PC and DSP card.
6. a kind of intelligent photovoltaic simulating experimental system according to claim 1 is characterized in that, described digitial controller adopts the TMS320f2812 evaluation board to realize that the major control chip is the dsp processor of 32 fixed point calculation.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735978A (en) * | 2012-07-13 | 2012-10-17 | 云南北方光电仪器有限公司 | Computer on-line debugging method for grid-connected inverter |
| CN103792439A (en) * | 2012-10-30 | 2014-05-14 | 江苏固德威电源科技有限公司 | Full-automatic test system of grid-connected / off-grid photovoltaic inverter |
| CN105118360A (en) * | 2015-06-17 | 2015-12-02 | 浙江求是科教设备有限公司 | Modern power electronic technique experiment platform and method |
| CN106251755A (en) * | 2016-08-22 | 2016-12-21 | 朱凌 | A kind of portable light overhead utility analog meter |
| CN109559611A (en) * | 2018-11-15 | 2019-04-02 | 南京康尼电气技术有限公司 | A kind of novel photovoltaic module characteristic test experiment porch |
| CN110262456A (en) * | 2019-06-26 | 2019-09-20 | 商飞信息科技（上海）有限公司 | A kind of grid-connected test and research/development platform based on real-time simulation controller |
| CN110632532A (en) * | 2018-06-21 | 2019-12-31 | 中国电力科学研究院有限公司 | Test system and method for meeting parallel operation of multiple groups of string-type photovoltaic inverters |
| CN112731975A (en) * | 2019-10-28 | 2021-04-30 | 苏州阿特斯阳光电力科技有限公司 | Method for adjusting inclination angle of tracking support of photovoltaic module |
-
2010
- 2010-01-05 CN CN2010100224381A patent/CN102117570A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102735978A (en) * | 2012-07-13 | 2012-10-17 | 云南北方光电仪器有限公司 | Computer on-line debugging method for grid-connected inverter |
| CN102735978B (en) * | 2012-07-13 | 2014-10-29 | 云南北方光电仪器有限公司 | Computer on-line debugging method for grid-connected inverter |
| CN103792439A (en) * | 2012-10-30 | 2014-05-14 | 江苏固德威电源科技有限公司 | Full-automatic test system of grid-connected / off-grid photovoltaic inverter |
| CN105118360A (en) * | 2015-06-17 | 2015-12-02 | 浙江求是科教设备有限公司 | Modern power electronic technique experiment platform and method |
| CN105118360B (en) * | 2015-06-17 | 2019-12-27 | 杭州求晟科技有限公司 | Modern power electronic technology experiment platform and experiment method |
| CN106251755A (en) * | 2016-08-22 | 2016-12-21 | 朱凌 | A kind of portable light overhead utility analog meter |
| CN106251755B (en) * | 2016-08-22 | 2022-05-17 | 杭州澳宇自动化设备有限公司 | Portable photovoltaic power plant simulator |
| CN110632532A (en) * | 2018-06-21 | 2019-12-31 | 中国电力科学研究院有限公司 | Test system and method for meeting parallel operation of multiple groups of string-type photovoltaic inverters |
| CN109559611A (en) * | 2018-11-15 | 2019-04-02 | 南京康尼电气技术有限公司 | A kind of novel photovoltaic module characteristic test experiment porch |
| CN110262456A (en) * | 2019-06-26 | 2019-09-20 | 商飞信息科技（上海）有限公司 | A kind of grid-connected test and research/development platform based on real-time simulation controller |
| CN110262456B (en) * | 2019-06-26 | 2024-03-08 | 商飞信息科技（上海）有限公司 | Photovoltaic grid-connected test and research and development platform based on real-time simulation controller |
| CN112731975A (en) * | 2019-10-28 | 2021-04-30 | 苏州阿特斯阳光电力科技有限公司 | Method for adjusting inclination angle of tracking support of photovoltaic module |
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Application publication date: 20110706 |