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首页> 外文期刊>Journal of Power and Energy Engineering >Power Quality Improvement Strategy for Wind Energy Conversion System
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Power Quality Improvement Strategy for Wind Energy Conversion System

机译：风能转换系统的电能质量改善策略

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摘要

Wind energy is one of the world's fastest growing energy technologies, as wind is an intermittent renewable source, the wind source extracted by a wind turbine is therefore not constant. For this reason, the fluctuation of wind power results in fluctuated power output from wind turbine generator. From the point of view of utilities, due to the fluctuation of generator output, it’s not appropriate for the generator to be directly connected to the power grid. In order to achieve the condition that the generator output power is suitable for grid-connection, it is necessary to use a controller to manage the output produced by the wind turbine generator. This paper proposes a novel control scheme of a three-phase grid-connected wind energy conversion system to improve the power quality of WECS. The WECS model consists of a permanent magnet generator and the electronic power conditioning system is composed of full bridge rectifier, close loop boost converter, three phase inverter. Wind generation is being increasingly connected at distribution level due to increasing load demand. The inverter is controlled to perform following function 1) power converter to inject power generated from WECS to the grid, and 2) shunt APF to compensate current unbalance, load current harmonics, load reactive power demand Validation of the proposed system is verified through MATLAB/Simulink simulation.
机译：风能是世界上增长最快的能源技术之一，因为风是一种间歇性的可再生资源，因此由风力涡轮机提取的风源不是恒定的。因此，风力的波动导致风力涡轮发电机的输出功率波动。从公用事业的角度来看，由于发电机输出的波动，将发电机直接连接到电网是不合适的。为了达到发电机输出功率适合并网的条件，有必要使用控制器来管理由风力涡轮发电机产生的输出。提出了一种三相风电并网转换系统的新型控制方案，以提高WECS的电能质量。 WECS模型由永磁发电机组成，电子功率调节系统由全桥整流器，闭环升压转换器，三相逆变器组成。由于负荷需求的增加，风力发电在配电领域的连接越来越多。控制逆变器执行以下功能：1）功率转换器，将WECS产生的功率注入电网; 2）并联APF，以补偿电流不平衡，负载电流谐波，负载无功功率需求。通过MATLAB / Simulink模拟。

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