三电平中点箝位式SVG研究

发布时间：2018-07-03 04:53

本文选题：无功补偿 + SVG　；参考：《中北大学》2017年硕士论文

【摘要】：实时无功补偿是改善电能质量的有效方法,可以提高输电系统的稳定性,目前最理想的方案是采用静止无功发生器(SVG:Static VAR Generator),是无功补偿领域最新技术的代表,在各行业得到越来越多的应用,高校和研究所也投入了大量资源进行研究。基于此背景本文研究设计了三电平电压源型SVG平台。本文首先对SVG的国内外研究现状进行了梳理,结合实验室现有课题,提出一种采用三电平中点箝位式的SVG装置。然后在Simulink中搭建了仿真模型,对其工作原理、拓扑结构和控制策略进行分析研究。最后对主电路元件进行了选型,编写了控制软件程序,设计了基于DSP的控制板卡、辅助DSP板卡、交流采样板卡、继电器板卡和PWM与故障驱动转接板卡,结合“T”型IGBT模块成功搭建了13kVar SVG实验平台。通过仿真和实验的结合,验证了控制策略的正确性和实验平台的可靠性,已经成功应用于实验室的“电动汽车并网调度”实验系统中。
[Abstract]:Real-time reactive power compensation is an effective method to improve power quality and can improve the stability of transmission system. At present, the most ideal scheme is to adopt SVG: static VAR Generator, which is the representative of the latest technology in the field of reactive power compensation. More and more applications in various industries, universities and research institutes have also invested a lot of resources for research. Based on this background, a three-level voltage source SVG platform is designed. In this paper, the current research status of SVG at home and abroad is reviewed, and a three-level neutral point clamping SVG device is proposed. Then the simulation model is built in Simulink, and its working principle, topology and control strategy are analyzed and studied. Finally, the main circuit components are selected, the control software program is written, the control board based on DSP, the auxiliary DSP board, the AC sampling board, the relay board and the PWM and fault driven switch board are designed. Combining with "T" IGBT module, the experimental platform of 13kVar SVG is built successfully. Through the combination of simulation and experiment, the correctness of the control strategy and the reliability of the experimental platform are verified. It has been successfully applied to the experimental system of "Electric vehicle grid-connected scheduling" in the laboratory.
【学位授予单位】：中北大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TM761.12

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