变电站智能型无功补偿系统的研究与实现

【作者】 江岳文；

【导师】 郭宗仁；

【作者基本信息】 福州大学 ， 电力系统及其自动化， 2003， 硕士

【摘要】 本文在十一区理论的基础上，提出了一种切实可行的无功补偿方案。它以PLC作为下位机，计算机作为上位机，充分地利用PLC的可靠性高、抗干扰能力强、维护和调试方便的优点并结合上位机数据处理和显示的长处，形成一个具有数据采集、显示、判别、通讯、控制、执行的智能型无功补偿系统。该装置以真空断路器作为执行元件、以并联电容器作为补偿元件，实现“循环投切”。为了充分实现控制的自动化与智能化，进一步提高系统无功补偿的效果和电网运行的经济性，保证无功调节达到最佳的状态而投切的电容器次数最少，还引入了模糊控制技术和遗传算法进行无功优化，探讨了如何在变电站综合自动化系统中实现电压无功的最优控制。更多还原

【Abstract】 This paper presents a feasible scheme of reactive power compensation on the basis of eleven-area theory. It uses PLC as secondary-computer and person computer as host-computer. PLC has the high reliability and the strong not interfered capability and convenient maintenance and debugging. Person computer has the advantages of data processing and display. The both are combined to constitute an intelligent reactive power compensation and control and excution. The equipment uses vacuum circuit breaker as executing components and use parallel capacitor banks as compensating components. It can check in or out capacitor banks cyclically. In order to realize automatic and intelligent control better ; and to enhance the effect of electric power system’s reactive power compensation and the economy of power network; and to minimizing the times of checking in or out capacitor banks makes reactive power adjustment optimum, fuzzy control technology and genetic algorithm for reactive power optimization are proposed. We also mention how to make voltage and reactive power control optimum in the integrated automatization system of substation.更多还原