摘要
电力电子变换器级联系统静态稳定性分析一般采用Middlebrook阻抗判据,运用该方法的关键是输入输出阻抗的计算。由于传统计算方法必须建立系统的小信号等效电路模型,难以解决复杂电力电子系统的阻抗计算难题。因此,首先提出了电力电子变换器级联系统端口处的数学描述方法,然后在此基础上,提出了全系统输入输出阻抗计算方法,并通过实例与传统计算方法的结果进行了比较,验证了该算法的正确性。
Generally, the impedance criterion is adopted to analyze the static stability of the electronic cascaded system. So, impedance computation is the key to the impedance criterion method. The tradi- tional computing method based on the small-signal equivalent circuit model cannot cope with difficul- ties in computation of the complicated power system with electronic devices. For the reason, this pa- per proposes a method of mathematic description of the electronic cascaded system and further an input-output impedance computation method for the whole system. The results of comparing this method and the traditional method verify that the method proposed is feasible and effective.
出处
《海军工程大学学报》
CAS
北大核心
2013年第3期19-24,29,共7页
Journal of Naval University of Engineering
基金
国家自然科学基金委员会创新研究群体科学基金资助项目(50421703)
国家自然科学基金资助项目(51077130)