电力系统自动化Issue(4)：69-75,7.DOI:10.7500/AEPS20140218012
不平衡电网下脉宽调制整流器模型预测直接功率控制
Model Predictive Direct Power Control of PWM Rectifier Under Unbalanced Grid Voltage
张永昌 1曲昌琦1
作者信息
- 1. 北方工业大学电力电子与电气传动北京市工程研究中心，北京市 100144
- 折叠
摘要
Abstract
The study of model predictive control (MPC) on a pulse-width modulation (PWM) rectifier is mainly implemented under the condition of ideal balanced grid voltage at present,while few investigations are reported on control under unbalanced grid voltage.Thus,this paper proposes a new model predictive direct power control (MPDPC) for PWM rectifier suitable for operation under unbalanced grid voltage,which is aimed to eliminate the double grid frequency oscillation in active power and ensure sinusoidal grid current.Compared with conventional MPC,only one compensation block is required to be added to the original power reference.The calculation of the power compensation has no need of rotary transformation and positive and negative sequence decomposition of grid voltage/currents.It has the advantages of simple principle,easy extension and strong robustness,etc.Simulation and experimental results have verified the effectiveness and feasibility of the proposed method under unbalanced grid voltage.关键词
脉宽调制整流器/模型预测控制/直接功率控制/电网不平衡Key words
pulse-width modulation(PWM) rectifier/model predictive control/direct power control/unbalanced power grid引用本文复制引用
张永昌,曲昌琦..不平衡电网下脉宽调制整流器模型预测直接功率控制[J].电力系统自动化,2015,(4):69-75,7.
