摘要
针对单相并网逆变器并网电流的谐波抑制问题,提出了带通(band-pass,BP)调节器。分析了使用BP调节器时的并网电流控制环的频域特性和时域特性。与比例积分(proportion integration,PI)或比例谐振(proportion resonance,PR)调节器相比,BP控制具有可抑制并网电流中的所有谐波和节省系统频带的优点。给出了闭环系统设计的完整方案。仿真和试验结果验证了该方法的有效性。
To suppress current harmonics in single-phase grid-connecting inverter, a band-pass regulator is proposed, and the frequency-domain and time-domain characteristics of grid-connecting current closed-loop controller are analyzed while the band-pass regulator is used. Comparing with proportion integration （PI） regulator and proportion resonance （PR） regulator, the proposed band-pass regulator possesses the advantages of suppressing all harmonics in grid-connecting current and saving system frequency band. An overall scheme for the design of the closed-loop control system is given. The effectiveness of the proposed method is verified by simulation and experimental results.
出处
《电网技术》
EI
CSCD
北大核心
2013年第6期1706-1712,共7页
Power System Technology
关键词
并网逆变器
带通调节器
谐波抑制
节省频带
grid-connecting inverter
band pass regulator
all harmonic restraining
saving frequency band
