中国电机工程学报2016，Vol.36Issue(22)：6193-6201,9.DOI:10.13334/j.0258-8013.pcsee.152588
一种提升逆变器对电网适应能力的电流控制策略
A Current Control Strategy to Improve the Adaptability to Utility for Inverters
摘要
Abstract
To improve the inverter’s stability and the injected current quality under different utility, a current control strategy which combines grid voltage proportional weighted feed-forward and harmonic quasi-resonant control with phase compensation was proposed. The relationship between the weighted coefficient and the number of the harmonic quasi-resonant is studied. Simultaneously, the parameter design method was provided. With the inverter-grid cascaded system stability guaranteed, the control strategy can utilize the advantage of the grid voltage feed-forward and the harmonic quasi-resonant control to a maximized extent. Therefore, the inverter output impedance was enlarged to realize high current quality. Theoretical analysis and comparative experimental results validates that the proposed control strategy provides a promising solution for improving the inverter’s adaptability to a varied utility.关键词
并网逆变器/稳定性/准谐振控制/相角补偿/电网电压比例加权前馈Key words
grid-connected inverter/stability/harmonic quasi resonant/phase compensation/proportional grid voltage weighted feed-forward分类
信息技术与安全科学引用本文复制引用
钱强,谢少军,季林,许津铭,张斌锋..一种提升逆变器对电网适应能力的电流控制策略[J].中国电机工程学报,2016,36(22):6193-6201,9.基金项目
国家自然科学基金项目(51477077)。Project Supported by National Natural Science Foundation of China (51477077) （51477077）
