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FPGA-based power fluctuation suppression device

A power fluctuation suppression and modulation signal technology, applied in the field of FPGA applications, can solve problems such as power fluctuations, achieve the effects of increasing service life, reducing output power fluctuations, and improving stability

Pending Publication Date: 2021-09-14
CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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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

Method used

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  • FPGA-based power fluctuation suppression device
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  • FPGA-based power fluctuation suppression device

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Embodiment Construction

[0016] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0017] The DC micro-grid is composed of power frequency AC mains through rectification, or photovoltaics and batteries, and provides DC power distribution to the power fluctuation suppression device, such as figure 1 As shown, the power fluctuation suppression device provides a stable working voltage to the pulse load through the power electronic power supply system, and the pulse load is equivalent to an energy storage capacitor and resistance.

[0018] The power fluctuation suppression device includes the main power part, signal conditioning circuit, AD conversion circuit, protection circuit, FPGA core circuit and driving signal level conversion circuit, such as figure 2 shown.

[0019] FPGA core circuit design phase-locked loop module, AD control module, soft start module, power fluctuation suppression module, current control module ...

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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...

Claims

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Application Information

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IPC IPC(8): H02J1/02H02M1/15
CPCH02J1/02H02M1/15Y02E10/56
Inventor 贾立朋孙勇卢胜利华明孙祥
Owner CHINA ELECTRONICS TECH GRP CORP NO 14 RES INST
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