电力系统及其自动化学报2018，Vol.30Issue(5)：14-20,7.DOI:10.3969/j.issn.1003-8930.2018.05.003
基于EL模型的NPC-UPQC混合无源控制方法
Hybrid Passivity-based Control Method for NPC-UPQC Based on Euler-Lagrange Model
摘要
Abstract
A three-phase bridge inverter is replaced by a three-level neutral point clamped(NPC)inverter to construct the main circuit of NPC-unified power quality controller(UPQC)based on a traditional two-lever UPQC.To overcome the errors caused by using the detection method with phase locked loop(PLL)for NPC-UPQC compensation quantities based on instantaneous reactive power theory,a dq 0 detection method based on power grid frequency clock without PLL is proposed for the real-time detection of the distortional components of voltage and current,respectively.To improve the control performance of NPC-UPQC,a Euler-Lagrange(EL)model of NPC-UPQC is set up and analyzed,and a hy?brid passivity-based controller is designed based on the EL model and the passivity of NPC-UPQC.Using the proposed detection method for compensation quantities and the hybrid passivity-based controller,the voltage or current can be compensated effectively,which makes the waveform of load voltage or power supply current sinusoidal approximately.A simulation model of NPC-UPQC is built in Matlab/Simulink to study its compensation performance,and the experimen?tal results are analyzed.Simulation results show the effectiveness of the detection method and the hybrid passivity-based control strategy proposed in this paper.关键词
统一电能质量调节器/欧拉-拉格朗日模型/谐波dq0检测法/混合无源控制Key words
unified power quality controller(UPQC)/Euler-Lagrange(EL)model/dq 0 harmonic detection method/hybrid passivity-based control分类
信息技术与安全科学引用本文复制引用
郑成才,王久和,慕小斌,张巧杰..基于EL模型的NPC-UPQC混合无源控制方法[J].电力系统及其自动化学报,2018,30(5):14-20,7.基金项目
国家自然科学基金资助项目(51777012,51477011) （51777012,51477011）
北京市自然科学基金重点资助项目(KZ201511232035) （KZ201511232035）
北京市高创计划教学名师资助项目(PXM2017014114000025) （PXM2017014114000025）
