Power control method of grid-forming type photovoltaic inverter
The invention provides a power control method of a grid-forming photovoltaic inverter, which comprises the following steps of: measuring grid-connected voltage and current of an inverter side, calculating active and reactive power reference values through a power equation, calculating active power a...
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Main Authors | , , , , , , , , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
01.03.2024
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Subjects | |
Online Access | Get full text |
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Summary: | The invention provides a power control method of a grid-forming photovoltaic inverter, which comprises the following steps of: measuring grid-connected voltage and current of an inverter side, calculating active and reactive power reference values through a power equation, calculating active power and reactive power of a current system according to an instantaneous power theory, and then adjusting the active power and the reactive power of the system, a voltage amplitude given signal and a phase given value are obtained, the voltage of the virtual impedance and a current inner ring are input, and the current compensation amount is calculated through active reference current compensation and is input into d-axis and q-axis current controllers for compensation modulation for control. According to the method, necessary frequency and voltage support can be well provided for the power distribution network, when the power distribution network breaks down, the method has the network construction capability of indepe |
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Bibliography: | Application Number: CN202311683099 |