上海电机学院学报
上海電機學院學報
상해전궤학원학보
JOURNAL OF SHANGHAI DIANJI UNIVERSITY
2014年
5期
263-268
,共6页
光伏逆变器%准比例谐振控制器%谐波补偿%频率偏移
光伏逆變器%準比例諧振控製器%諧波補償%頻率偏移
광복역변기%준비례해진공제기%해파보상%빈솔편이
photovoltaic inverter%quasi-proportion resonant controller%harmonic compensa-tion%frequency deviation
为弥补比例谐振(PR)控制器带宽窄、抗频率偏移能力差等缺点,利用 Matlab/Simu-link 仿真软件分析了准比例谐振(Quasi-PR)控制器的不足,并在其谐振环节增加零点,以提高其在谐振频率处的增益;与 Quasi-PR 控制器进行比较,结果表明改进后的 Quasi-PR 控制器提高了系统的响应时间与电网的抗干扰能力,减小了跟踪电流误差。
為瀰補比例諧振(PR)控製器帶寬窄、抗頻率偏移能力差等缺點,利用 Matlab/Simu-link 倣真軟件分析瞭準比例諧振(Quasi-PR)控製器的不足,併在其諧振環節增加零點,以提高其在諧振頻率處的增益;與 Quasi-PR 控製器進行比較,結果錶明改進後的 Quasi-PR 控製器提高瞭繫統的響應時間與電網的抗榦擾能力,減小瞭跟蹤電流誤差。
위미보비례해진(PR)공제기대관착、항빈솔편이능력차등결점,이용 Matlab/Simu-link 방진연건분석료준비례해진(Quasi-PR)공제기적불족,병재기해진배절증가영점,이제고기재해진빈솔처적증익;여 Quasi-PR 공제기진행비교,결과표명개진후적 Quasi-PR 공제기제고료계통적향응시간여전망적항간우능력,감소료근종전류오차。
To make up the shortfalls of narrow bandwidth and weak ability against frequency deviation of proportion resonant controller.The shortage of the quasi-proportion resonant(Quasi-PR)controller is analyzed by Matlab/simulink.Zeros are added to the proportion link of a propor-tion resonant controller to improve the gain at the resonant frequency,and compared to a propor-tion resonant controller.The result shows that the described resonant controller can improve sys-tem response time,and increase the ability of resisting interference from power lines,reduce cur-rent track error.