Analysis of Multi-converter System's Stability Using the Active Damping Method

作者：Xie, Guang jun^*; Fang, Hai bin; Xu, Hui fang

来源：International Conference on Information Technology for Manufacturing Systems (ITMS 2011), China,Shanghai, 2011-05-07 to 2011-05-08.

DOI：10.4028/www.scientific.net/AMM.58-60.950

• Active Damping
• Constant Power Loads (CPLs)
• DC-DC Buck Converter
• Continuous Conduction Model (CCM)
• Multi-converter Power Systems
• Negative Resistance

In Multi-converter power electronic systems, load converters exhibit constant power load (CPL) behavior for the feeder converters and tend to destabilize the system. In this paper, Buck DC-DC converters are taken as an example, and the implementation of active-damping techniques has been shown to analyze the stability of multi-converter power electronic systems. Moreover, active damping is generally implemented by a feedback loop, which produces the effect of a virtual resistor and damps the oscillations, the proposed active-damping method can overcome the negative impedance instability problem caused by the CPLs. The effectiveness of the proposed approach has been verified by Matlab/Simulink simulations.

• 出版日期2011
• 单位合肥工业大学