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基于光伏电池模拟器的最大功率点跟踪控制研究 被引量:3

Research of Maximum Power Point Tracking for Photovoltaic Application Based on PV Emulator
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摘要 不论光照强度及环境温度如何变化,最大功率点跟踪控制都可以使光伏电池输出最大功率。由于照度、环境温度等条件不可控,变化周期长,在光伏阵列发电系统中研究最大功率点跟踪控制有众多不便。提出一种光伏电池模拟器,在实验室内可以模拟光伏电池特性,改变照度等外界条件。分析了在DC-DC变换器中控制占空比实现最大功率点跟踪控制的方法,在基于光伏电池模拟器构建的实验系统中实现了不同照度下的最大功率点跟踪控制。 Maximum power from photovoltaic (PV) panel is obtained by maximum power point tracking (MPPT) no matter on changing illumination and temperature. Considering uncontrol and long term of the illumination and temperature, it is inconvenient to research and debug MPPT control in the real PV system. A PV emulator is developed to simulate changing illumination and temperature in the lab. MPPT method by only adjusting duty cycle of DC - DC converter is analyzed. MPPT under different illumination is realized in an experiment setup based on PV emulator.
出处 《微电机》 北大核心 2008年第7期62-64,共3页 Micromotors
关键词 光伏发电 最大功率点跟踪 模拟器 实验 Photovoltaic Maximum power point tracking Emulator Experiment
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