电力系统保护与控制2017，Vol.45Issue(14)：45-50,6.DOI:10.7667/PSPC161051
多并网逆变器系统谐振抑制策略
Research on resonance suppression strategy of system with multiple grid-connected inverters
摘要
Abstract
The interactions between multiple grid-connected inverters can cause resonance and threaten the security and stability of the system.To address the problem of the resonance,the impedance network is built and the resonance suppression mechanism is analyzed,then a global resonance suppression strategy is proposed based on the principle of admittance reconstruction.The strategy is to dynamically reshape the impedance network using the virtual impedance generated by the public connection point harmonic voltage,such that the potential oscillations and resonance propagation in the parallel grid-connected converters can be mitigated.To validate the effectiveness of the active damper,simulations and experimental tests on a two converter-based setup are carried out.Simulation and experimental results are provided to verify the feasibility and validity of the proposed strategy.关键词
阻抗网络/谐振/抑制策略/并网逆变器/导纳Key words
impedance network/resonance/suppression strategy/grid-connected inverter/admittance引用本文复制引用
胡伟,周友斌,杜镇安,张侃君,王婷,孙建军..多并网逆变器系统谐振抑制策略[J].电力系统保护与控制,2017,45(14):45-50,6.基金项目
国家自然科学基金资助项目(51277137)This work is supported by National Natural Science Foundation of China (No.51277137). （51277137）
