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| The New Design of the Photovoltaic Array Simulator |
| Lu Zhiping, Wang Dong |
| Baoding Tianwei Wind Power Technology Co., Ltd, Baoding, Hebei 071051 |
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Abstract It’s not only difficult and high cost, but also uneasy to simulate the photovoltaic system’s operating state in all kinds of ambient conditions when we use the real photovoltaic array to design a grid-connected photovoltaic system or an off-grid photovoltaic system. A quick method for design the photovoltaic array simulator which is used of the LabView environment and the current source is introduced in this paper. Firstly, the physical characteristic of the photovoltaic array is analyzed, and then its mathematical model was figured out. Comparing the characteristics curve measured from the real photovoltaic array and the curve calculated from the mathematical model in the MATLAB environment, it turns out that the mathematical model can simulate the real photovoltaic array very well. In this paper, LabView is used to measure the voltage of the load, and then, the mathematic model is used to calculate the output current of the array simulator, finally, we can control the current source by GPIB. So it proves the feasibility of this photovoltaic array simulator.
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2013, Vol. 14 
