电测与仪表
電測與儀錶
전측여의표
ELECTRICAL MEASUREMENT & INSTRUMENTATION
2014年
1期
75-79
,共5页
光伏电站%逆变器%重复控制%仿真
光伏電站%逆變器%重複控製%倣真
광복전참%역변기%중복공제%방진
PV power plant%inverter%repetitive control%simulation
基于LCL滤波器的并网VSI系统,在重复控制理论基础上进行改进,提出一种具有频率波动适应能力的控制策略,保证当电网频率波动时依然具有良好的电流跟踪性能。同时系统具有低谐波及高功率因数的优越性能。通过Matlab/Simulink仿真验证了该控制策略的正确性和有效性。
基于LCL濾波器的併網VSI繫統,在重複控製理論基礎上進行改進,提齣一種具有頻率波動適應能力的控製策略,保證噹電網頻率波動時依然具有良好的電流跟蹤性能。同時繫統具有低諧波及高功率因數的優越性能。通過Matlab/Simulink倣真驗證瞭該控製策略的正確性和有效性。
기우LCL려파기적병망VSI계통,재중복공제이론기출상진행개진,제출일충구유빈솔파동괄응능력적공제책략,보증당전망빈솔파동시의연구유량호적전류근종성능。동시계통구유저해파급고공솔인수적우월성능。통과Matlab/Simulink방진험증료해공제책략적정학성화유효성。
LCL filter-based grid connected VSI will be improved on the basis of repetitive control A new control strate-gy with the capacity to adapt to the frequency fluctuation is presented in this paper, which will ensure a good current tracking performance in condition of grid frequency fluctuation. Moreover, the proposed system has the advantages in low harmonic and high power factor. Simulation results based on matlab/simulink verify the correctness and effective-ness of the proposed control strategy.