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首页> 外文会议>Annual IEEE Applied Power Electronics Conference and Exposition >A coordinated active and reactive power control strategy for grid-connected cascaded photovoltaic (PV) system in high voltage high power applications
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A coordinated active and reactive power control strategy for grid-connected cascaded photovoltaic (PV) system in high voltage high power applications

机译：高压大功率应用中网格连接级联光伏（PV）系统的协调主动和无功控制策略

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摘要

This paper presents a grid-connected high voltage high power PV system with cascaded multilevel inverters. A coordinated active and reactive power control strategy is proposed to achieve an effective active and reactive power distribution for each PV inverter module, as well as improve the system power quality and reliability. Vector diagrams are derived to illustrate the power distribution principle. Accordingly, a control system, including the active and reactive control extraction, voltage distribution and synthesization, and 3rd harmonic voltage injection is developed. Finally, a 3MW/12kV PV system with the proposed control strategy is modeled and simulated in MATLAB+PSIM platform. A downscaled PV system including two cascaded 5kW inverters with proposed control strategy is also implemented in the laboratory. The simulation results are presented to verify the validity of the proposed technology.1
机译：本文介绍了具有级联多级逆变器的电网连接的高压高功率PV系统。 提出了一种协调的主动和无功功率控制策略，为每个PV逆变器模块实现有效的主动和无功功率分布，以及提高系统功率质量和可靠性。 导出矢量图以说明配电原理。 因此，开发了一种控制系统，包括主动和无功控制提取，电压分布和合成，以及3 RD 谐波电压注入。 最后，在MATLAB + PSIM平台中建模和模拟了具有所提出的控制策略的3MW / 12kV PV系统。 在实验室也实施了包括两个具有提出控制策略的两个级联的5kW逆变器的次要光伏系统。 提出了仿真结果以验证所提出的技术的有效性。 1

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