New energy grid-connected inverter self-synchronizing voltage source control method
An inverter and new energy technology, applied in AC network voltage adjustment, AC network circuits, photovoltaic power generation, etc., can solve the problems of complex single control algorithm, inability to take into account current control performance, and difficulty in taking into account power grid control capabilities at the same time, to achieve Taking into account the effect of grid-connected current control performance and good current control ability
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[0063] The preferred embodiment of the present invention will be further described in detail below with reference to the accompanying drawings.
[0064] figure 1 It is a new energy source grid inverter topology based on a self-synchronous voltage source in an embodiment of the present invention. The topology of the new energy grid-connected inverter includes a DC source U dc , DC side filter capacitor C dc , Three-phase full bridge inverter circuit, filter inductance L, filter capacitor C 0 , Grid-equivalent resistance R g , And mesh equivalent inductance L g And three-phase power grid E a E b E c , DC side filter capacitor C dc And connected to the DC source U dc And the three-phase full bridge inverter circuit, three-phase full bridge inverter circuit is connected in the DC side power supply U dc And filtering inductance L, filter capacitor C 0 Seded in series passive damping resistor R C , Then connected to the filter inductance L and the panel equivalent resistance R g Betwee...
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