逆变电源的虚拟结构化设计方法

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Abstract The key control objective is to track the reference voltage without error for the inverter system as alternating current (AC) power. However, gradually dynamic adjusting process exists in the traditional closed-loop control pattern. As a result, the voltage output cannot rapidly track the reference voltage as the load networks randomly changes. Therefore, a virtual structure design method is presented in this paper. In this method. after the recognition of parameters of open-loop inverter which is the controlled objict, we design the controller. The aim of this method is to make the relaionship among the reference voltage, output voltage, and output current of inverter equals the condition whe these variables act on some kind of circuit structure. This method takes the circuit structure as the direct design objective. The parameter changes of the inverts are considered in the structure design and the control objective can be realized indirectly. The inverters using the design have rapid response. The error between the voltage output and its reference can be eliminated at a stand-alone condition. The main performances is validated through simulations and experiments.

Key words： Virtual circuit virtual impedance power electronics inverter Mathematical model

Received: 07 April 2011 Published: 25 March 2014

PACS:

TM464

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