中北大学学报（自然科学版）2017，Vol.38Issue(3)：364-372,9.DOI:10.3969/j.issn.1673-3193.2017.03.020
交流能馈型直流电子负载研究
Research on AC of Energy Feedback Type DC Electronic Load
蔡华锋 1梅继超 1廖冬初 1童炎1
作者信息
- 1. 湖北工业大学 太阳能高效利用湖北省协同创新中心, 湖北 武汉 430068
- 折叠
摘要
Abstract
A kind of AC of energy feedback type DC electronic load device was researched.It consisted of a phase-shift full bridge circuit with soft switch technology and a grid inverter circuit with L filter.The former phase-shift full bridge with soft switch technology used the control strategy of input current outer loop with PI-controlled and the output current inner loop with single cycle controlled.The output characteristics of locomotive power supply could be simulated by controlling the input inductor current.As using PI controller in grid inverter might lead to the grid current steady-state error, and a new control strategy was presented-outer DC bus voltage loop with PI control and inner grid current loop with quasi resonant PR control.The inverter DC voltage could be stabilized through outer voltage loop and the grid current with zero steady-state error could be realized through inner current loop.MATLAB simulation and experimental results verifies the feasibility of AC of energy feedback type DC electronic load topology and control strategies discussed.关键词
直流电子负载/交流能馈/移相全桥/单周期控制/准谐振PR控制Key words
DC electronic load/AC of energy feedback/phase-shift full bridge/single cycle control/quasi resonant PR control分类
信息技术与安全科学引用本文复制引用
蔡华锋,梅继超,廖冬初,童炎..交流能馈型直流电子负载研究[J].中北大学学报（自然科学版）,2017,38(3):364-372,9.
