光伏阵列组态优化控制策略分析
局部阴影条件下，光伏阵列的最大输出功率将大大减小。为克服阴影的影响，根据光伏阵列工作状况的变化，实时优化光伏阵列的连接结构，即光伏阵列组态优化，将极大提高阵列的最大输出功率。在仿真分析了局部阴影对光伏阵列最大输出功率影响的基础上，详细解析了现有的各种组态优化控制策略，从阵列初始组态、控制算法、所需开关器件和传感器的类型和数量等方面分析比较了各种控制策略的异同和优缺点，并提出了在光伏阵列组态优化过程中应注意的问题。...
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| Published in | 电力系统保护与控制 Vol. 40; no. 22; pp. 101 - 107 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
山东大学控制科学与工程学院,山东 济南 250061
2012
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-3415 |
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| Summary: | 局部阴影条件下，光伏阵列的最大输出功率将大大减小。为克服阴影的影响，根据光伏阵列工作状况的变化，实时优化光伏阵列的连接结构，即光伏阵列组态优化，将极大提高阵列的最大输出功率。在仿真分析了局部阴影对光伏阵列最大输出功率影响的基础上，详细解析了现有的各种组态优化控制策略，从阵列初始组态、控制算法、所需开关器件和传感器的类型和数量等方面分析比较了各种控制策略的异同和优缺点，并提出了在光伏阵列组态优化过程中应注意的问题。 |
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| Bibliography: | FENG Li-na, CHEN A-lian, DU Chun-shui, ZHANG Cheng-hui （School of Control Science and Engineering, Shandong University, Jinan 250061, China） photovoltaic array; partial shadow; configuration optimization; control strategy Under partial shadow conditions, the maximum power generated by the photovoltaic array is reduced seriously. To overcome the effect of shadow, adjusting the structure of photovoltaic array, that＇s to say, optimizing the configuration of photovoltaic array, can improve the maximum power greatly according to the change of its working conditions in real time. In this paper, partial shading effect on the maximum power of photovoltaic array is analyzed by simulations, and control strategies for photovoltaic array reconfiguration are researched in detail. The initial structure of the array, control algorithms, the required type and number of switching devices and sensors, etc. are analyzed and compared. Finally, suggestions for the optimization of configuration are presented. 41-1401/TM |
| ISSN: | 1674-3415 |