摘要
研究一种具有滤波与能量回馈双功能的电梯能量回馈器,当电梯处于能量再生状态运行时,回馈器将能量回馈到电网;当电梯处于非能量再生状态运行时,即回馈器处于闲置状态时,为了提高设备利用率,使回馈器运行在有源电力滤波状态。本文以并联型有源电力滤波器为研究对象,对其拓扑结构、补偿分量的检测算法、控制策略等问题作了较系统研究。MATLAB仿真结果表明,该回馈器能够准确地补偿谐波电流和无功功率,动态响应速度也很快。
The energy-feedback device is researched which has double functions as active power filters and energy-feedback.The energy is return to the power-grid through the device when it is working at the state of regeneration energy;makes the device works at the state of active power filters for improving the value in use when it is not working at the state of regeneration energy.Taking paralleled active power filter as investigated subjecti,t makes systematic study for topology,detection algorithm of compensation referencec,ontrol strategies of the APF.The simulation results by MATLAB shows that the device has many merits,more exact compensation effectiveness and rapid dynamic response.
出处
《电气传动自动化》
2010年第5期5-10,共6页
Electric Drive Automation
关键词
有源滤波
谐波检测
无功电流
能量回馈
active power filters
harmonic detection
reactive currents
energy-feedback
