A Control Method of Voltage Source Inverter with Current Decoupling in Virtual Synchronous Coordinate System
A technology of voltage source inverter and virtual synchronization, which is applied in the direction of single-network parallel feeding arrangement, etc., can solve the problems of increasing system design complexity and calculation burden, so as to reduce system calculation burden, reduce implementation complexity, and simplify control The effect of the design
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[0045] In order to describe the present invention more specifically, the technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0046] This embodiment takes a two-level voltage source inverter with a capacity of 10kW and a rated voltage of 380V as an example, where the DC side voltage is 600V;
[0047] figure 2 A voltage source inverter control method for current decoupling in a virtual synchronous coordinate system is given, including the following steps:
[0048] (1) First, use a group (3) of voltage Hall sensors 2 to collect the three-phase grid voltage u of the voltage source inverter ga ~ u gc , using a set of (3) current Hall sensors 3 to respectively collect the three-phase output current i of the voltage source inverter ga ~i gc ;
[0049] Use the Clarke transformation module 4 to respectively transform the three-phase grid voltage u ga ~ u gc , three-phase output ...
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