电力电子变换器拓扑的置换及嵌入法构造和应用
发布时间：2019-04-27 06:39
【摘要】：随着新能源、可再生能源发电及照明节能新技术的快速发展，适合于太阳能、燃料电池等新能源并网的宽增益DC/DC变换器拓扑，以及提高LED照明驱动电源寿命的AC/DC变换器拓扑，成为目前一个重要的研究方向。由于现有电力电子变换器拓扑的构造都是采用经验的方法，，具有随机性，且需耗费大量的人力、物力，往往事倍功半，提不出具有实用价值的电力电子变换器，为此研究具有系统性、可重复性的电力电子变换器拓扑构造方法具有理论和实际意义。 本文根据电力电子变换器拓扑构造特点，借鉴TRIZ发明创造理论中的套装与合并原理，演绎出适合于电力电子变换器拓扑构造的置换和嵌入方法，提出了一系列宽增益DC/DC变换器，AC/DC无桥变换器和无电解电容LED驱动电路。具体工作如下： 1.基于置换方法构造宽增益DC/DC变换器的研究。提出了双电感单元和开关电感电容单元两种基本置换单元，将这两种基本置换单元对传统DC/DC变换器中的功率电感元件进行置换，构造出了两种宽增益Buck-Boost变换器、高增益N次型BOOST变换器，该方法还可推广到宽增益Cuk、Sepic、Zeta变换器中。 2.基于嵌入方法构造宽增益DC/DC变换器的研究。提出了无源嵌入单元和三种嵌入方法。构造出了六种宽增益DC/DC变换器，即Sepic-Boost变换器、带电压乘法器的高增益变换器、反向输出二次型Buck-Boost变换器、两绕组倍压高增益变换器和集成电压转移技术的高增益变换器。 3.基于置换和嵌入方法综合的AC/DC变换器的研究。提出了一种Boost-Buck-Boost无桥变换器、一种伪连续Boost-Buck-Boost无桥变换器和一种Buck-Buck-Boost无桥变换器。 4.为解决LED驱动电源由于存在电解电容导致寿命降低的问题，基于嵌入方法提出了一种新型的无电解电容LED驱动电路。 以上研究表明，提出的适合于电力电子变换器拓扑构造的置换和嵌入方法，可以系统地构造出一系列新型的电力电子变换器拓扑，具有较好的实际价值。
[Abstract]:With the rapid development of new energy sources, renewable energy generation and lighting energy-saving technologies, it is suitable for the topology of wide-gain DC/DC converters connected to the grid of new energy sources such as solar energy, fuel cells, and so on. And the topology of AC/DC converter, which can improve the life of LED lighting driving power supply, has become an important research direction at present. Because the topology of current power electronic converter is constructed by experience method, it has randomness, and needs a lot of manpower and material resources, it often takes half the effort, and can not bring up the power electronic converter with practical value. Therefore, it is of theoretical and practical significance to study a systematic and repeatable topology construction method for power electronic converters. According to the characteristics of topology construction of power electronic converter, this paper deduces the replacement and embedding method suitable for topology construction of power electronic converter by referring to the combination and combination principle of TRIZ's theory of invention and creation, which is suitable for the topology construction of power electronic converter. A series of wide gain DC/DC converters, AC/DC bridge-less converters and electrolytic capacitor-free LED driving circuits are presented. The specific work is as follows: 1. The research of wide gain DC/DC converter based on permutation method. Two basic replacement units, double inductor unit and switched inductance capacitor unit, are proposed. Two kinds of wide gain Buck-Boost converters are constructed by replacing the power inductance elements of traditional DC/DC converter with these two basic replacement units. The high-gain N-order BOOST converter can also be extended to wide-gain Cuk,Sepic,Zeta converter. 2. The research of constructing wide gain DC/DC converter based on embedding method. Passive embedding elements and three embedding methods are proposed. Six kinds of wide gain DC/DC converters are constructed, that is, Sepic-Boost converter, high gain converter with voltage multiplier and backward output quadratic Buck-Boost converter. Two-winding double-voltage high-gain converter and high-gain converter integrated with voltage transfer technology. 3. The research of AC/DC converter based on substitution and embedding method. This paper presents a Boost-Buck-Boost bridge-less converter, a pseudo-continuous Boost-Buck-Boost bridge-less converter and a Buck-Boost bridge-less converter. 4. In order to solve the problem that the life of LED drive power supply is reduced due to electrolytic capacitance, a new type of electrolytic capacitor-free LED driving circuit is proposed based on embedding method. The above research shows that the proposed replacement and embedding method is suitable for the topology construction of power electronic converter, and a series of new power electronic converter topologies can be constructed systematically, which has a good practical value.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM46
本文编号：2466764
[Abstract]:With the rapid development of new energy sources, renewable energy generation and lighting energy-saving technologies, it is suitable for the topology of wide-gain DC/DC converters connected to the grid of new energy sources such as solar energy, fuel cells, and so on. And the topology of AC/DC converter, which can improve the life of LED lighting driving power supply, has become an important research direction at present. Because the topology of current power electronic converter is constructed by experience method, it has randomness, and needs a lot of manpower and material resources, it often takes half the effort, and can not bring up the power electronic converter with practical value. Therefore, it is of theoretical and practical significance to study a systematic and repeatable topology construction method for power electronic converters. According to the characteristics of topology construction of power electronic converter, this paper deduces the replacement and embedding method suitable for topology construction of power electronic converter by referring to the combination and combination principle of TRIZ's theory of invention and creation, which is suitable for the topology construction of power electronic converter. A series of wide gain DC/DC converters, AC/DC bridge-less converters and electrolytic capacitor-free LED driving circuits are presented. The specific work is as follows: 1. The research of wide gain DC/DC converter based on permutation method. Two basic replacement units, double inductor unit and switched inductance capacitor unit, are proposed. Two kinds of wide gain Buck-Boost converters are constructed by replacing the power inductance elements of traditional DC/DC converter with these two basic replacement units. The high-gain N-order BOOST converter can also be extended to wide-gain Cuk,Sepic,Zeta converter. 2. The research of constructing wide gain DC/DC converter based on embedding method. Passive embedding elements and three embedding methods are proposed. Six kinds of wide gain DC/DC converters are constructed, that is, Sepic-Boost converter, high gain converter with voltage multiplier and backward output quadratic Buck-Boost converter. Two-winding double-voltage high-gain converter and high-gain converter integrated with voltage transfer technology. 3. The research of AC/DC converter based on substitution and embedding method. This paper presents a Boost-Buck-Boost bridge-less converter, a pseudo-continuous Boost-Buck-Boost bridge-less converter and a Buck-Boost bridge-less converter. 4. In order to solve the problem that the life of LED drive power supply is reduced due to electrolytic capacitance, a new type of electrolytic capacitor-free LED driving circuit is proposed based on embedding method. The above research shows that the proposed replacement and embedding method is suitable for the topology construction of power electronic converter, and a series of new power electronic converter topologies can be constructed systematically, which has a good practical value.
【学位授予单位】：华南理工大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM46
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