中国电机工程学报2025，Vol.45Issue(z1)：83-95,13.DOI:10.13334/j.0258-8013.pcsee.242988
孤岛微电网多工况下自适应谐波分配与电能质量治理无通信控制策略
Communication-less Control Strategy of Adaptive Harmonic Sharing and Power Quality Control Under Various Working Conditions in Islanded Microgrid
摘要
Abstract
In islanded microgrid,nonlinear loads lead to harmonic sharing and power quality issues,which make designing a proper control strategy considering both two aspects significant.Impedance-reshaping-based methods are intuitive and effective solutions,where the inherent tradeoff between power quality and harmonic sharing accuracy must be designed properly.The most of existing methods share harmonic power according to the rated power of converters,lacking the full use of residual capacity.Besides,the fixed tradeoff results in the limited power quality improvement.Faced with these issues,an adaptive communication-less control strategy under different working conditions is proposed in this paper.A nonlinear droop scheme,between virtual impedance and residual capacity,is proposed to dynamically adjust the inherent tradeoff under different working conditions.The proposed strategy can render an optimal utilization of the converter capacity and optimize the power quality to the greatest extent while avoiding overload.In addition,the communication line is not needed,leading to high flexibility.The experimental results based on three converters have verified the feasibility and effectiveness of the proposed method.关键词
电能质量治理/谐波分配与限流/孤岛微电网/非线性下垂/剩余容量/无通信控制Key words
power quality control/harmonic sharing and current limiting/islanded microgrid/nonlinear droop/residual capacity/communication-less control分类
信息技术与安全科学引用本文复制引用
张枭,易皓,文娅,白岳谦,王振雄,杨泽斌,王翌琛,卓放..孤岛微电网多工况下自适应谐波分配与电能质量治理无通信控制策略[J].中国电机工程学报,2025,45(z1):83-95,13.基金项目
国家自然科学基金项目(52477123). Project Supported by National Natural Science Foundation of China(52477123). （52477123）
