中国电机工程学报2025，Vol.45Issue(4)：1587-1598,中插30,13.DOI:10.13334/j.0258-8013.pcsee.231985
级联H桥并网逆变器能量成型控制策略及控制参数整定
Energy-shaping Control Strategy and Control Parameter Tuning of Cascaded H-bridge Grid-connected Inverter
摘要
Abstract
The cascaded H-bridge(CHB)multilevel inverter is widely used in grid-connected systems for its modular characteristics.However,due to the strongly coupled nonlinear characteristics,the CHB grid-connected inverter system with linear control strategies such as PI closed-loop control strategy has poor rapidity and multiple control parameters that are difficult to tune.To solve this problem,an energy-shaping control strategy is proposed.Firstly,the port-controlled Hamiltonian(PCH)model in the synchronous rotating coordinate system is established by instantaneous power observation,and the energy-shaping controller of the system is designed.Secondly,the influence of the control parameters on the control performance is analyzed,and a general tuning method of the control parameters is given.Finally,simulation and experimental results verify the rationality of the proposed control parameter tuning method,and it is also verified that the designed control strategy has fewer control parameters and better rapidity than the PI closed-loop control strategy.关键词
级联H桥/并网逆变器/能量成型控制/控制参数整定/端口受控哈密顿模型Key words
cascade H-bridge(CHB)/grid-connected inverter/energy-shaping control/control parameter tuning/port-controlled Hamiltonian(PCH)model分类
信息技术与安全科学引用本文复制引用
李朝东,叶满园,冉岩,宋蕙慧..级联H桥并网逆变器能量成型控制策略及控制参数整定[J].中国电机工程学报,2025,45(4):1587-1598,中插30,13.基金项目
国家自然科学基金项目(52267014,51767007) （52267014,51767007）
江西省研究生创新专项项目(YC2023-B206). Project Supported by National Natural Science Foundation of China(52267014,51767007) （YC2023-B206）
Jiangxi Postgraduate Innovation Special Fund Project(YC2023-B206). （YC2023-B206）
