Method for estimating and suppressing direct current component of bridge inverter output voltage
A DC component and output voltage technology, applied in the direction of output power conversion devices, electrical components, etc., can solve the problems of system overcurrent, reduce system reliability, damage the power grid, etc., and achieve the effect of suppressing the DC component
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[0034] The technical solutions in the embodiments of the present invention will be described and discussed in detail below in conjunction with the drawings of the present invention. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0035] The present invention is suitable for digitally controlled single-phase half-bridge inverters and three-phase inverters; the circuit diagram of the single-phase half-bridge inverters can be found in figure 1 Shown, the circuit diagram of the three-phase inverter see figure 2 shown. The following takes a single-phase half-bridge inverter as an example to describe in detail.
[0036] see figure 1 As shown, the present invention is a method for estimating the DC component of the output voltage of a bridge inverter. The bridge inverter is a single-phase inverter; the single-phase inverter includes a DC bus voltage V p and V n , the first...
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