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中文摘要：
针对单相电力线路中谐波和负载变化下无功不平衡与谐波干扰,运用瞬时无功功率理论ip-iq算法检测,提取电流基波有功分量,进而得到基波无功分量和谐波分量之和,采用电流闭环的电流直接控制策略,产生电流脉冲驱动信号,送到IGBT逆变桥,连接至电力线路进行补偿。仿真表明,存在谐波和负载变化时,通过该补偿装置可以达到电流跟踪精确、响应迅速、补偿充分等效果。
英文摘要：
For single-phase electric power line harmonics interference and reactive power unbalance in single-phase load changing, we apply the theory of instantaneous reactive power algorithm of IP - IQ tests to extract the fundamental current active component, and then get the stun of base wave reactive component and harmonic component. Using direct current control strategy and current loop, an electrical current pulse drive signals are sent to the IGBT inverter bridge, which connects to power line for compensation. Simulation shows that the compensation device can achieve the current tracking precision, quick response, and enough compensation effect, when electric power line has harmonics interference or the load change.
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