D-STATCOM设备研制及其在蓄电池充放电系统电压稳定的应用研究

发布时间：2018-04-20 20:33

  本文选题：D-STATCOM + 蓄电池充放电　； 参考：《广西大学》2014年硕士论文

【摘要】：配电网静止同步补偿器(D-STATCOM)能有效解决配电网中电压波动问题。本文针对三相平衡配电系统,研制D-STATCOM装置及其DSP控制器,并将其应用到蓄电池充放电系统的电压稳定控制。从D-STATCOM电路的数学建模出发,采用劳斯判据对系统进行稳定性分析,说明D-STATCOM系统是可控的。分析D-STATCOM的稳压原理,通过仿真验证稳压方案的可行性。在此基础上,重点对D-STATCOM稳压装置进行了硬、软件设计。硬件设计主要包括IGBT光电隔离及驱动、信号调理、故障保护、PWM输出缓冲、控制电源、继电保护等电路；软件设计主要包括初始化、AD采样和控制算法等程序,并进行了闭环运行测试。在此基础上,搭建D-STATCOM蓄电池充放电-无功稳压实验样机。对系统中主电路结构、器件参数选择进行分析,对系统整体控制算法进行了研究。在实验室提供条件下,做了D-STATCOM无功稳压系统实验,对实验结果进行了详细分析,结果表明D-STATCOM装置能够保持蓄电池充放电系统交流母线电压稳定。
[Abstract]:The static synchronous compensator D-STATCOMcan effectively solve the voltage fluctuation problem in distribution network. In this paper, a D-STATCOM device and its DSP controller are developed for three-phase balanced distribution system, and applied to voltage stability control of battery charging and discharging system. Based on the mathematical modeling of D-STATCOM circuit, the stability of the system is analyzed by using the Rouse criterion, which shows that the D-STATCOM system is controllable. The principle of D-STATCOM voltage stabilization is analyzed, and the feasibility of voltage stabilization scheme is verified by simulation. On this basis, the hardware and software design of D-STATCOM voltage regulator is emphasized. The hardware design mainly includes IGBT photoelectric isolation and drive, signal conditioning, fault protection, PWM output buffer, control power supply, relay protection, etc. The software design mainly includes initialization AD sampling and control algorithm, etc. The closed loop running test is also carried out. On this basis, the D-STATCOM battery charge and discharge-reactive power stable experimental prototype. The structure of the main circuit and the selection of the device parameters are analyzed, and the overall control algorithm of the system is studied. Under the conditions provided by the laboratory, the D-STATCOM reactive power steady voltage system experiment is done, and the experimental results are analyzed in detail. The results show that the D-STATCOM device can keep the AC bus voltage of the battery charging and discharging system stable.
【学位授予单位】：广西大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TM912
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本文编号：1779318