混合型有源电力滤波器参数优化研究

发布时间：2018-03-14 11:06

本文选题：混合型有源电力滤波器　切入点：遗传算法　出处：《哈尔滨理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着大量非线性电力电子装置的广泛应用,电网中的谐波污染日益严重,造成系统的功率因数降低,给电网带来额外负担并影响供电质量和运行安全。针对电网中的谐波污染及功率因数低的问题,采用电力滤波装置就近吸收谐波源所产生的谐波电流,是抑制谐波污染的有效措施。与以往被广泛应用的无源滤波器相比,APF具有高度的可控性和快速响应性,但是由于考虑APF的成本较高,所以在高压大容量的场合采用混合式有源滤波器。首先,本文在分析国内外谐波滤除装置研究和发展现状的基础上,对串联谐振注入式混合有源滤波器的谐波检测及控制策略进行了分析比较。详细分析串联谐振注入式混合有源滤波器主回路及工作原理,并对基波串联谐振注入式混合有源滤波器主回路各个元件参数的选择进行介绍,重点研究了无源滤波器的设计、直流侧电容的选取方法、有源滤波器设计及输出滤波器的设计。然后,针对现有的混合型有源电力滤波器优化设计方案的不足,本文提出了基于遗传算法的优化算法,该算法具有很强的全局寻优能力。同时考虑算法的早熟问题,提出了一种解决优化算法在运算中早熟的方法,最后将整个优化算法用流程框图直观的表达了出来。最后,通过遗传算法对串联谐振注入式有源电力滤波器进行参数优化,得到整个滤波器具体参数,利用Matlab软件中的Simulink模块对设计的串联谐振注入式混合型有源电力滤波器进行仿真,结果表明利用遗传算法设计的滤波器具有很好的谐波治理和无功补偿的能力。
[Abstract]:With the wide application of a large number of nonlinear power electronic devices, the harmonic pollution in the power network is becoming more and more serious, which results in the decrease of the power factor of the system. In order to solve the problem of harmonic pollution and low power factor in the power network, the harmonic current generated by the harmonic source is absorbed by the power filter device, and the harmonic current generated by the harmonic source is absorbed by the power filter device. Compared with the passive filter which has been widely used in the past, it has high controllability and fast response, but the cost of considering APF is high. Therefore, the hybrid active power filter is used in high voltage and large capacity situations. Firstly, based on the analysis of the research and development status of harmonic filter at home and abroad, The harmonic detection and control strategies of series resonant injection hybrid active power filter are analyzed and compared. The main loop and working principle of series resonant injection hybrid active power filter are analyzed in detail. The selection of the parameters of each component in the main loop of the fundamental series resonant injection hybrid active filter is introduced. The design of the passive filter and the selection method of the DC side capacitance are emphatically studied. The design of active power filter and the design of output filter. Secondly, the optimization algorithm based on genetic algorithm is proposed to solve the shortcomings of the existing optimal design scheme of hybrid active power filter. The algorithm has strong global optimization ability. At the same time, considering the premature problem of the algorithm, a method to solve the precocity of the optimization algorithm is proposed. Finally, the whole optimization algorithm is expressed intuitively by flow chart. The parameters of series resonant injection active power filter are optimized by genetic algorithm, and the parameters of the filter are obtained. The design of series resonant injection hybrid active power filter is simulated by Simulink module in Matlab software. The results show that the filter designed by genetic algorithm has the ability of harmonic control and reactive power compensation.
【学位授予单位】：哈尔滨理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TM761;TN713.8

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