FPGA-based power fluctuation suppression device

Abstract

The invention discloses an FPGA-based power fluctuation suppression device, which comprises a main power Boost circuit, a signal conditioning circuit, an AD conversion circuit, a protection circuit, an FPGA core circuit and a driving signal level conversion circuit, and is characterized in that the FPGA core circuit is provided with a phase-locked loop module, an AD control module, a soft start module, a power fluctuation suppression module, a current control module and a modulation signal generation module; voltage and current signals are converted into voltage and current feedback values, the proportion of input voltage and the voltage feedback values is controlled, current fluctuation of input power is restrained, the difference between a current given value and a current feedback quantity is calculated, a duty ratio signal is generated, comparison with a carrier wave is carried out, output power fluctuation of the direct-current power supply system is reduced, and the stability of the power supply system is improved. The service life of a power electronic power supply system is prolonged, and the service life of a photovoltaic power generation device and a storage battery energy storage device in a direct-current power supply system is prolonged.

Description

technical field [0001] The invention belongs to the technical field of power electronics, and in particular relates to an FPGA application technology. Background technique [0002] With the development of power electronic technology, the system power of power electronic equipment is gradually increasing, and the working mode of pulse load is more complicated, especially pulse width loads such as inverter welding machines and weather radars cause large fluctuations in the input power of power electronic systems. The frequency and voltage stability of conventional AC power supply systems are seriously affected. [0003] The DC power supply system connects the power generation device, energy storage system, and load in the form of DC power distribution. In terms of power quality, there are no problems such as reactive power circulation and frequency deviation of the AC system, and it has better power quality. In terms of operation control, the DC power supply system does not n...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the power fluctuation suppression problem of the DC power supply system existing in the prior art, such as the DC microgrid, the inverter welding machine in the small DC distribution network, and the phased array radar, etc., the power fluctuation suppression problem of the power supply system is proposed. The power fluctuation suppressing device of FPGA adopts advanced FPGA control method to suppress power fluctuation, and improves the stability and service life of DC power supply system and power electronic power supply system. In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme

Images