Research on Unbalanced Current Compensation Control Strategy Based on Neutral Point Clamp Converter
The use of distributed generation systems has led to serious power quality problems in low-voltage distribution networks.Low voltage distribuion network power quality needs to be valued.In this paper, a multi-function power converter (MPC) device with balanced three-phase asymmetrical current, reactive power compensation, power factor improvement and harmonic elimination is proposed.The paper introduces a MPC topology which has three-level inverter with a neutral point clamped (NPC) and a voltage balancer (VBC).A new control method combining the network current reference algorithm and PQ decoupling is given in this paper.Finally, the 1OOkW simulation system is built to verify the effectiveness of the proposed control strategy, which can effectively solve the power quality problems in the low voltage distribution network by using MPC.Some simulation and experimental results are illustrated to show the prototype devices performance.
Three-phase asymmetric current Reactive power compensation Harmonic treatment Multi-function Power Converter NPC VBC
Zhe-zhu HUANG Xin LIN Guang-tao QIN Yi-bo WANG Jian WANG Peng WANG
State Grid Shenyang Electric Power Supply Company, China School of Electrical Engineering, Northeast Electric Power University, China
国际会议
上海
英文
65-73
2018-04-15（万方平台首次上网日期，不代表论文的发表时间）