【摘要】 针对煤矿供电系统中由于非线性负载大量接入而造成的电能质量问题，以及目前广泛应用的集中式电能质量调节装置成本高、体积大的缺陷，提出了一种基于VIENNA型整流器并联实现静止无功补偿的控制方法，以改善煤矿供电系统的电能质量。所提控制方法使得一部分VIENNA整流器提供无功功率，剩余VIENNA整流器用于补偿系统谐波。该方法有效地抑制了VIENNA整流器在补偿无功功率时存在的输入电流过零畸变问题，进而极大地提高了此类整流器在电能质量治理方面的能力。最后通过仿真验证了所提方法的可行性和有效性。更多还原

【Abstract】 In view of the power quality problems caused by the massive access of non-linear loads in the power supply system of coal mines, and the defects of high cost and large size of the centralized power quality regulation devices widely used at present, a control method based on the parallel connection of VIENNA type rectifiers is proposed to realize static reactive power compensation, to improve the power quality of the power supply system. This method effectively suppresses the input current over-zero distortion problem of VIENNA rectifiers in compensating reactive power, which in turn greatly improves the capability of such rectifiers in power quality management. Finally, the feasibility and effectiveness of the proposed method are verified by simulation.更多还原