TheHarmonicandVoltageFluctuationControlStrategyofWind.pdfVIP

The Harmonic and Voltage Fluctuation Control Strategy of Wind Power Generator Accesses the Mircogrid Junbo Fu1, Liang Ren2 ，Shuhuai Yan3 1Dept.of Electrical and Electronic Engineering, North China Electrical Power University,102206, Beijing, China; 2Dept.of Electrical Maintenance, Huainan Luohe Power Plant, 232008, Huainan, China 3Dept.of Thermal Engineering, Anhui University of Technology, 23200, Huainan, China Emial：fujunbo86@126.com Abstract: The author designs and simulates the wind power generator which used in microgrid, builds model and establishes rectifier and inverter model, introduces the rectifier circuit, chopper circuit, inverter control circuit in detail, To the intermittent、uncontrollable randomness of the wind power characteristics, proposed constant voltage control method in the chopper circuit voltage to obtain stable voltage. The author also proposes PQ control strategy on inverter device, in order to ensure the wind power generation in accordance with the setting value. Wind power generator generates harmonics and voltage fluctuation when accesses the microgrid. In order to meet the sensitive load demand in microgrid, proposes power quality device---Three-phase shunt compensation of alternating current purifying voltage stabilizer, providing pure sine wave current and voltage to the load. Simulation results show the effectiveness of the proposed control strategy. Keywords: Synchronous generator; active and reactive control; harmonic; inverter 风机接入微网的谐波及电压波动控制策略 付俊波 1，任亮 2 ,颜舒淮 3 1华北电力大学，北京，中国，102206 2淮南洛河电厂，淮南，中国，232008 3安徽理工大学，淮南，中国，232001 Email：fujunbo86@126.com 摘要：对微网电源的一种——风机进行了设计仿真，建立了同步发电机的模型和接入微网的整流逆变 模型，并分别对其中的整流电路、升压斩波电路、逆变控制电路进行了具体说明，对风力发电的随机 性间歇性与不可控性，提出在斩波电路环节定电压方法以获得稳定的电压。并对逆变装置提出了 PQ 控制策略，以保证按照需要的功率发电的方法，对风机接入系统产生的谐波及电压暂降问题进行研究， 说明了风机作为电源提供电流电压存在一定的偏差，为了能满足微网内部敏感负荷的需求。提出了实 用三相并联交流净化稳压电源（三项并联式 DVR）控制谐波及电压暂降的策略，以提供纯净的正弦波 电流和电压给负荷。仿真结果证明了所提出控制策略的有效性。 关键词: 同步发电机;有功无功控制；谐波；逆变器；三相并联式 DVR 1