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单周控制方法是近年来提出的一种新型的非线性控制方法。该方法具有快速的动态跟踪能力、良好的鲁棒性和高质量的输出波形等优点。文章提出了基于平均状态空间方法的Ｄ－ｄ法，对单周控制ＣＵＫ电路的动态稳定性进行了较为详细的分析。实验和仿真结果表明：这种方法算法简单、物理概念清晰，还可获得该电路较为精确的动态稳定区域。
One-week control method is a new type of nonlinear control method proposed in recent years. The method has the advantages of fast dynamic tracking, good robustness and high quality output waveform. In this paper, D-d method based on average state space method is proposed, and the dynamic stability of CUK circuits with one-cycle control is analyzed in detail. Experimental and simulation results show that this method is simple in algorithm and clear in physical concept, and can obtain more accurate dynamic stable region of the circuit.