Novel power quality controller based on current-mode inverter and control method thereof
A technology of current-source inverter and power quality, applied in AC network voltage adjustment, AC network to reduce harmonics/ripples, reactive power compensation, etc. Efficiency and other issues
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[0052] Embodiments of the present invention are described in further detail below in conjunction with the accompanying drawings:
[0053] A main circuit topology of a three-port integrated power quality conditioner based on a current source inverter, such as figure 1 As shown, it includes an energy storage inductance 1, an inverter circuit 2, a low-pass filter circuit 3 and a connection inductance unit 4; the energy storage inductance 1 is connected to the inverter circuit 2 for providing inverter DC side current; the The inverter circuit 2 is used to generate the AC current required to adjust the power quality and to charge the energy storage inductor 1; the inverter circuit 2 is connected to the low-pass filter circuit 3 for filtering the output PWM current of the inverter circuit 2 The higher harmonics in the middle; the connection inductance unit 4 is connected in series between the power supply and the load, and is used to generate the offset voltage required for compensa...
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