Abstract：A novel S type switch function is adopted instead of conventional sign switch function to overcome two main problems of conventional sliding mode observer,i.e.,chattering and filter delay. The above problems are all solved effectively meanwhile the low pass filter and angle compensation of observer can be eliminated and the excellent performance of fast response, strong robustness and simple structure is obtained. The observer structure and jitters elimination principle are analyzed. The sliding mode gain coefficient is given based on stability criterion. In addition, this S type observer is applied to the system of permanent magnet synchronous motor(PMSM) driven by two-stage matrix converter(TSMC). The system not only owns the excellent driving-performance, but also can always achieve green input performance. The feasibility and validity of the proposed strategy are verified.
宋卫章, 马宝剑, 王斌, 钟彦儒, 孙向东. 矩阵变换器-永磁同步电机系统的S型滑模观测器矢量控制[J]. 电工技术学报, 2014, 29(8): 81-89.
Song Weizhang, Ma Baojian, Wang Bin, Zhong Yanru, Sun Xiangdong. A Novel S Type Sliding-Mode Observer Used in Vector Control for Two-Stage Matrix Converter-Permanent Magnet Synchronous Motor. Transactions of China Electrotechnical Society, 2014, 29(8): 81-89.
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2014, Vol. 29 
