电网技术
電網技術
전망기술
POWER SYSTEM TECHNOLOGY
2013年
6期
1706-1712
,共7页
并网逆变器%带通调节器%谐波抑制%节省频带
併網逆變器%帶通調節器%諧波抑製%節省頻帶
병망역변기%대통조절기%해파억제%절성빈대
grid-connecting inverter%band pass regulator%all harmonic restraining%saving frequency band
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.
針對單相併網逆變器併網電流的諧波抑製問題,提齣瞭帶通(band-pass,BP)調節器.分析瞭使用BP調節器時的併網電流控製環的頻域特性和時域特性.與比例積分(proportion integration,PI)或比例諧振(proportion resonance, PR)調節器相比,BP控製具有可抑製併網電流中的所有諧波和節省繫統頻帶的優點.給齣瞭閉環繫統設計的完整方案.倣真和試驗結果驗證瞭該方法的有效性.
침대단상병망역변기병망전류적해파억제문제,제출료대통(band-pass,BP)조절기.분석료사용BP조절기시적병망전류공제배적빈역특성화시역특성.여비례적분(proportion integration,PI)혹비례해진(proportion resonance, PR)조절기상비,BP공제구유가억제병망전류중적소유해파화절성계통빈대적우점.급출료폐배계통설계적완정방안.방진화시험결과험증료해방법적유효성.
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.
