摘要
研究了一种改进的过调制策略。在原有过调制策略基础上,借鉴一种过调制结构,引入调整角,通过对其输出相电压进行傅里叶级数展开求得其基波分量,以实现对输出电压的精确控制。采用查表法来实现改进后的算法,以减少运算量。实验结果表明,该算法在基本保持原策略优点的基础上实现了对输出电压的精确控制,证明了该策略的有效性。
An improved overmodulation method is studied. Based on the original methods and according to one structure of overmodulation, the adjustment angle is introduced, and the fundamental components are obtained by expanding the output phase voltage via the Fourier series, in order to realize the accurate control of the output voltage. By means of the look-up table method, the algorithm is developed to reduce the computation. Experimental results show that the improved algorithm achieves a precise control of the output voltage without sacrificing the advantages of the original methods, demonstrating the effectiveness of the proposed strategy.
出处
《煤炭技术》
CAS
北大核心
2014年第3期101-104,共4页
Coal Technology
