A Position Optimization Method for Photovoltaic Array Irradiance Sensor

Abstract

A method for optimizing the position of a photovoltaic array irradiance sensor, including the specific steps of designing a position optimization method for a photovoltaic array irradiance sensor: after determining the number of irradiance sensors, using an efficient intelligent optimization algorithm Solve the optimization model for the placement of irradiance sensors, and then process the optimization results to screen out the optimal solution that satisfies the shortest distance between the two sensors and maximize the optimal solution among all the optimization results, and finally draw the optimal arrangement of the photovoltaic array irradiance sensors picture. This scheme is simple and easy to operate, and the algorithm runs fast. It only needs to input the scale of the photovoltaic array and the number of irradiance sensors to be arranged to output the optimal layout map of the irradiance sensors of the photovoltaic array. In practical applications, it not only helps to track the maximum output power of the photovoltaic power generation system and predict the power generation, but also provides the necessary global information for the optimization of the photovoltaic array reconstruction, which is of great significance to the stable operation of the photovoltaic power generation system.

Description

technical field [0001] The invention relates to a method for optimizing the position of an irradiance sensor on a photovoltaic array in a photovoltaic power generation system, and belongs to the field of detection of operating conditions of a photovoltaic power generation system. Background technique [0002] In order to solve the increasingly severe energy crisis and environmental problems, and with the depletion of traditional energy sources and the improvement of public environmental awareness, non-polluting, widely distributed and easy-to-obtain solar energy has been paid more and more attention. Solar photovoltaic power generation is the main form of effective use of solar energy, and has become the main new energy power generation method after wind power generation. In recent years, with the reduction in the price of photovoltaic modules and the introduction of government subsidy policies, the installed capacity of photovoltaic power generation has grown rapidly, inclu...

AI Technical Summary

Problems solved by technology

When the photovoltaic array with centralized output control is subjected to uniform illumination, the output power-voltage (P-U) characteristic curve of the photovoltaic array is single-peaked, and the traditional maximum power point tracking (MPPT) method can easily track the maximum power point (MPP); However, when the array is partially shaded, the partial shade will not only weaken the potential maximum power output capability of the photovoltaic array, but the existence of diodes will also cause the output characteristics of the photovoltaic array to be complicated and multi-peaked, which will affect MPPT control, reconstruction optimization, and power generation. It is very difficult to predict

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