高可靠性模块化串联系统输入均压控制策略研究

发布时间：2017-12-31 00:49

本文关键词：高可靠性模块化串联系统输入均压控制策略研究　出处：《东南大学》2015年硕士论文　论文类型：学位论文

【摘要】：电力电子技术的迅速发展使电力电子装置向着高频化、模块化和集成化的方向发展。将多个标准化变换器模块通过串并联方式组合可构成多种组合系统,这可以降低系统的开发难度、降低开发成本、缩短研发周期、提高系统可靠性和冗余性。而保证串并联系统中各模块均压和均流是整个系统可靠运行的关键。多变换器模块输入串联组合系统包括输入串联输出并联(Input-series output-parallel, ISOP)组合系统和输入串联输山串联(Input-series output-series, ISOS)组合系统,本文将对以直流变换器为基本模块组成的输入串联组合系统的输入均压控制策略进行研究。论文研究内容主要包括以下几个方面：1、以ISOP组合系统为例,对输入串联组合系统的无互联输入均压控制策略进行研究。分析总结了现有的输入串联组合系统的输入均压控制策略的缺点：系统模块间都有公用互联部分,系统模块化程度不高。由此提出输入串联组合系统无互联输入均压控制策略,并对该控制策略进行了理论分析和仿真验证。该控制策略不仅实现了系统的输入均压,还避免了模块间互联,真正实现组合系统的模块化设计,具有很高的系统可靠性。2、以ISOS组合系统为例,针对所提出的输入均压控制策略的输出电压调整率较差的问题,提出改进型输入串联组合系统无互联输入均压控制策略。改进的控制策略不仅实现了ISOS组合系统的输入/输出均压,而且改善了系统输出电压调整率。另外,系统输出电压校正环节的引入,没有增加模块间互联线,不影响系统的模块化特性。3、设计且制作了由三个双管正激变换器模块组成的输入串联组合系统原理样机,并分别对所提出的输入串联组合系统无互联输入均压控制策略及改进型无互联输入均压控制策略进行实验验证。
[Abstract]:The rapid development of power electronics technology, power electronic devices to high frequency, modularization and integration in the direction of development. Multiple standardized converter modules in series and parallel combinations can be composed of a variety of combination system, which can reduce the difficulty of system development, reduce development cost, shorten the development cycle, improve system reliability and redundancy series parallel system. The key modules are pressure and flow is the reliable operation of the system and ensure the heat exchanger module. Changing the input series system includes input series output parallel (Input-series Output-Parallel ISOP) system and the combination of input series output series (Input-series output-series ISOS) composite system, the combination of the basic modules of the system is composed of input DC converter for input voltage sharing control strategy is studied. The content of this paper includes the following. Surface: 1, in the ISOP integrated system as an example, the Internet without input voltage sharing control strategy of series combination system on input. Analyzed and summarized the existing system of series combination of input voltage sharing control strategy has some disadvantages: public Internet system module, the system module is not high. The input no interconnection input voltage sharing control strategy for series combination system, and the control strategy of the theoretical analysis and simulation. The control strategy not only realizes the input of the system pressure, but also to avoid the interconnection between modules, realize the modular design system, system reliability with high.2, the ISOS integrated system for example, to adjust the output voltage sharing control strategy proposed by the input rate of poor problem, this paper presents an improved input without interconnection input voltage sharing control strategy for series systems. The improved control strategy Slightly not only realized the ISOS system input / output voltage, but also improves the system output voltage adjustment rate. In addition, the introduction of the system output voltage correction link, without increasing the inter module interconnection line does not affect the.3 modular characteristics of the system, designed and produced by three double tube forward converter module the input series combination principle prototype system, and the series combination of the proposed system input without interconnection input voltage sharing control strategy and improved wireless input voltage sharing control strategy is verified by experiment.

【学位授予单位】：东南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM46

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