Digital control device of converter

A digital control and converter technology, applied in the direction of output power conversion device, circuit device, battery circuit device, etc., can solve the problems that the structure and processing process cannot be applied to the whole process of distributed control digital processing, control device failure, etc. Achieve high readability and portability, prolong life, and high real-time effects

Active Publication Date: 2009-09-09
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

Various interference signals are mixed into the analog signal, which can easily lead to the failure of the control device, and its structure and processing process cannot be applied to the requirements of distributed control and the requirements of digital processing in the whole process

Method used

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  • Digital control device of converter
  • Digital control device of converter
  • Digital control device of converter

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Experimental program
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Embodiment Construction

[0019] 1. Design of hardware circuit:

[0020] The flow battery energy storage converter is actually a switching power supply, which consists of two parts: the power conversion main circuit and the control circuit. The system structure diagram is shown in the attached figure 1 shown. It is mainly composed of AC grid filter circuit, input rectification filter circuit, IGBT main circuit, output rectification filter circuit, control circuit, protection action circuit, auxiliary power supply, detection and monitoring circuit. The IGBT main circuit adopts the same control circuit structure, and the principle of the conversion process is as follows: 1), the basic principle of the DC / DC conversion module is: the DC voltage is converted by the IGBT module of the high-frequency converter, and then output filter circuit to obtain the required high-quality DC voltage. 2) The basic principle of the AC / DC (Analog to Digital converter) conversion module is: the AC input voltage is filtere...

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PUM

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Abstract

The invention relates to a digital control device of a converter, which is a fully-digitized control device scheme of a flow battery energy storage converter based on TMS320F2812 DSP (Digital Signal Processor) chip control. The invention proposes a flow battery electric energy management system by studying the charge and discharge properties and the charged state of the flow battery and the application of peak clipping and valley filling of electric energy. Proved by practical application, the control device has good converting performance, can make the flow battery reach the fully charged state at a high rate, and does not influence the service life of the battery.

Description

technical field [0001] The invention belongs to the field of power system controllers, and in particular relates to a digital signal control device for a converter of a liquid flow battery energy storage system. Background technique [0002] Energy storage technology provides a new way to solve the existing problems of the power supply chain (fuel, power generation, transmission, distribution and consumption) and realize the sustainable development of the power grid. The use of large-scale power storage technology can effectively alleviate the contradiction between power supply and demand, improve the security and stability of the power grid, improve the quality of power supply, and promote the utilization and development of renewable energy. The converter is an important link in the energy storage system. The converter acts as the core unit in the entire energy storage system, and the control platform of the converter system is directly related to the accuracy, reliability,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02M7/5387H02M3/155
Inventor 闫涛王杨许守平
Owner CHINA ELECTRIC POWER RES INST
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