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When the stability issues of multi-module distributed DC power system are analyzed, the physical understandings of terminal characteristics of each module should be focused. According to the proposed analysis method, all the sub-modules are divided into two groups based on the different terminal property types: impedance (Z) type and admittance (Y) type. Equivalent circuits of total system are established...
In this paper, the stability issues of multi-module DC distributed power system are studied. Physical understanding of terminal characteristics of each module is studied. All the modules are divided into two groups (Z type and Y type) based on the different terminal property type and different equivalent circuit is selected for each group. Equivalent circuits of total system are established to analyze...
This paper presents a small-signal model of parallel inverters based on the droop control method for power sharing in a stand-alone micro-grid. The control method for parallel inverters is based on the frequency-active power and amplitude-reactive power droops, which only depends on the local variable measurements. The small-signal stability is analyzed and some root locus plots are provided with...
This paper proposes a universal approach to analyze and determine the stability of multi-module distributed power electronic systems. The modeling of cascaded, paralleled and inter-connected systems was carried out to analyze the affecting factors of the stability. The method was proposed that the stability of systems can be determined by impedance measurement. The most recent results from simulations...
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