Design and Simulation of High-Power DC-AC 3-Phase Inverter for Island’s Power System Using Solar Energy
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quangluc5228@gmail.comDOI:
https://doi.org/10.54644/jte.71A.2022.1044Từ khóa:
DC-DC Boost Converter, sinusoidal PWM, 4-Phase Interleaved Boost Converter, SPWM Inverter, Three-phase Inverter, PI controller, MPPT controllerTóm tắt
This paper presents the design of a DC – AC 3 phase 2 stages converter using programmable controllers which is performed on PSIM simulation software. The idea of this strategy is to present a method of controlling a large capacity DC-AC 3-phase AC voltage converter, with 380±20 VAC voltage output and 50Hz frequency, which is used for areas that need 3-phase electricity from the solar power system. In order to achieve a stable 3-phase AC voltage output, the converter is designed using the DC-DC 4-phase Interleaved Boost Converter in double circuit and the Maximum Power Point Tracker (MPPT) of the solar system. In this scheme, the electrical energy obtained from the DC-DC boost converter circuit will provide power to the 3-phase inverter that operates on the sine-PWM technique. The power circuit and quality control of the converter are enhanced by using the DC-DC 4-phase Interleaved Boost Converter and phase shift technique. The control parameters of two power converters will be controlled by the PI controller. A 10kW DC-AC 3-phase converter model was carried out on PSIM to illustrate the simulation results and validate the effectiveness of the proposed method, so it is ready to be implemented for practical applications.
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