机械研究与应用
機械研究與應用
궤계연구여응용
MECHANICAL RESEARCH & APPLICATION
2013年
5期
164-167
,共4页
离网%三相四桥臂逆变器%对称分量法
離網%三相四橋臂逆變器%對稱分量法
리망%삼상사교비역변기%대칭분량법
off-grid%three-phase four-leg inverter%symmetrical component method
针对微电网中用户负载可能不平衡的特点，研究了一种用于微电网系统的三相四桥臂逆变器。建立三相四桥臂逆变器在a-b-c静止坐标系下和d-q同步旋转坐标系下的数学模型。利用对称分量法对逆变器输出电压进行基波正序、负序和零序分量分解，研究分别采用正序、负序和零序旋转坐标系下的电压、电流双闭环控制方法，搭建了以英飞凌XE164 FN单片机为控制核心的硬件实验平台，并进行实验研究，实验结果证明所用控制方法的正确性。
針對微電網中用戶負載可能不平衡的特點，研究瞭一種用于微電網繫統的三相四橋臂逆變器。建立三相四橋臂逆變器在a-b-c靜止坐標繫下和d-q同步鏇轉坐標繫下的數學模型。利用對稱分量法對逆變器輸齣電壓進行基波正序、負序和零序分量分解，研究分彆採用正序、負序和零序鏇轉坐標繫下的電壓、電流雙閉環控製方法，搭建瞭以英飛凌XE164 FN單片機為控製覈心的硬件實驗平檯，併進行實驗研究，實驗結果證明所用控製方法的正確性。
침대미전망중용호부재가능불평형적특점，연구료일충용우미전망계통적삼상사교비역변기。건립삼상사교비역변기재a-b-c정지좌표계하화d-q동보선전좌표계하적수학모형。이용대칭분량법대역변기수출전압진행기파정서、부서화령서분량분해，연구분별채용정서、부서화령서선전좌표계하적전압、전류쌍폐배공제방법，탑건료이영비릉XE164 FN단편궤위공제핵심적경건실험평태，병진행실험연구，실험결과증명소용공제방법적정학성。
A three-phase four-leg inverter is designed to adapt the unbalance loads in the microgrid.Its mathematical models are realized on the a-b-c stationary frame and d-q synchronous rotation reference frame respectively , the symmetrical compo-nent method is used to abstract the fundamental-frequency positive sequence , zero sequence and negative sequence for the re-lated voltages and currents , the outer voltage loop and inner current loop are studied based on the sequence components on the d-q synchronous rotation reference frame, a prototype in the core of XE164FN is established.The experiments are done and its results verify that the control strategy is right.
