电网技术2018，Vol.42Issue(6)：1929-1935,7.DOI:10.13335/j.1000-3673.pst.2017.2753
LCL型有源滤波器电流指令补偿方法
Reference Current Compensation Method for LCL Type Active Power Filter
摘要
Abstract
To suppress output current amplification, virtual resistor damping strategy is widely used in LCL type inverter control. Existing virtual resistor is mainly used in application of fundamental harmonic energy transformation, ignoring its influence on output harmonic current control. This will adversely affect output harmonic current control. For application in active power filter (APF), load harmonic current compensation performance is hardly guaranteed. Based on comparison between inverter model with virtual resistor damping and 2nd order low-pass filter, the method of optimizing virtual resistance is found. And based on the approximate 2nd order low-pass filter model, reference current compensation method is presented. The output current control performance is guaranteed. Simulation and experiment results are provided to validate correctness of the modeling and effectiveness of the virtual resistor control and phase compensation control.关键词
LCL 型滤波器/电流控制/优化虚拟电阻/指令电流补偿Key words
LCL active power filter/current control/optimal virtual resistor/reference current compensation分类
信息技术与安全科学引用本文复制引用
聂程,雷万钧,王跃,尹诗媛,曹穆..LCL型有源滤波器电流指令补偿方法[J].电网技术,2018,42(6):1929-1935,7.基金项目
国家自然科学基金项目(51207126).Project Supported by the National Natural Science Foundation of China (51207126). （51207126）
