基于单周控制的有源电力滤波器的研究与仿真分析

发布时间：2018-03-02 18:00

本文选题：单周控制　切入点：有源滤波器　出处：《沈阳工业大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着电力电子技术的迅速发展，大量新型电力电子设备得到了广泛应用，这些非线性负载消耗大量无功能量的同时向电网注入大量谐波电流，谐波治理问题已经受到广泛关注。因此，，治理电力谐波的手段与方法已成为当今电气工程领域中的重要研究课题。单周控制（OCC）是一种新型大信号非线性控制技术，其系统具有可靠性高、控制精度好、动态跟踪响应快等优点，并已在众多领域中被广泛采纳。本文就单周控制在有源滤波器控制中的应用进行了研究和仿真分析。本文首先详细介绍了单周控制理论的概念和基本原理，建立了基于单周控制的APF功率级模型，并对其进行理论推导，总结出模型各变量之间的关系。对单周控制单相APF控制方程进行推导，根据电路实际工作情况，引出重要中间量Vm，并分析其调整过程和各主要器件参数值的选取方法和准则；整定了PI调节器中P、I环节的物理意义及应满足的条件，对控制器参数选择具有指导作用。本文对基于单周控制技术的单相APF的仿真电路进行设计，通过采用PSIM6.0仿真软件进行滤波仿真，证明了这种控制方式在单相APF应用的正确性和可行性。在单周控制单相APF研究的基础上，推导出单周控制三相APF的控制方程，根据方程式的形式设计出相应的仿真电路。最后采用PSIM6.0软件进行滤波仿真，证明了上述分析的正确性和可行性。
[Abstract]:With the rapid development of power electronics technology, a large number of new power electronic devices have been widely used. These nonlinear loads consume a lot of reactive energy and inject a large number of harmonic currents into the power network at the same time. The problem of harmonic control has been paid more and more attention. Therefore, the means and methods of harmonic control have become an important research topic in the field of electrical engineering. Occc is a new type of large signal nonlinear control technology. Its system has the advantages of high reliability, good control precision, fast dynamic tracking response and so on. It has been widely adopted in many fields. In this paper, the application of one-cycle control in APF control is studied and simulated. In this paper, the concept and basic principle of one-cycle control theory are introduced in detail, and the APF power level model based on one-cycle control is established, and its theoretical derivation is given. The relationship between each variable of the model is summarized. The single-phase APF control equation of one-cycle control is deduced. According to the actual working conditions of the circuit, the important intermediate value Vm is derived, and the adjustment process and the selection method and criterion of the main device parameters are analyzed. The physical meaning and the conditions to be satisfied of the PSI link in the Pi regulator are set up, which can guide the selection of the controller parameters. In this paper, the simulation circuit of single-phase APF based on one-cycle control technology is designed, and the correctness and feasibility of this control method in single-phase APF are proved by using PSIM6.0 simulation software. On the basis of single-phase APF research of one-cycle control, the control equation of one-cycle control three-phase APF is deduced, and the corresponding simulation circuit is designed according to the form of equation. Finally, the filter simulation is carried out by PSIM6.0 software. The correctness and feasibility of the above analysis are proved.
【学位授予单位】：沈阳工业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN713.8;TM761

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