电力系统调峰机组有功功率自动化平衡控制

Active power automatic balance control for peak shaving units of power system

针对传统系统控制效率差的问题,提出了电力系统调峰机组有功功率自动化平衡控制。根据电力系统调峰机组功率控制原理,设计了控制流程。功率信号和脉冲信号是经过D/A输出接口传递给功率放大器,将放大结果传递到平衡控制器之中。在该控制器内部,通过输入到线圈中脉冲信号产生的有功功率来驱动电力系统中调峰机组盘的转动。分析机组盘不平衡振动量,计算时间协调约束条件下的影响系数,通过分析机组盘两次配置初始角度关系,获取调峰机组盘转动后的振动量,即为电力系统调峰机组盘配置方案的最短路径。根据该路径对有功功率数据追溯控制情况展开分析,依据输入、输出变量绘制三角型隶属函数示意图,通过示意图对有功数据追溯信息进行抽象表达,由此完成电力系统调峰机组有功功率自动化平衡控制。通过实验分析结果可知,该方案控制效率最高可达到90%,为电气行业向自动化方向发展奠定了基础。

Aiming at the problem of poor control effectiveness of traditional systems, an automatic balancing control for active power of peak shaving units of power system is proposed. According to the power control principle of power system peak shaving unit, the control process is designed. The power and pulse signals are transmitted to the power amplifier through the D/A output interface, and the amplification results are passed to the balance controller. In this controller ,the active power generated by the pulse signal input to the coil is used to drive the rotation of the peak shaving unit in the power system. The unbalanced vibration quantity of the unit disk is analyzed and the influence coefficient is calculated under the condition of coordinated time constraints. By analyzing the initial angle relationship of the two configuration of the unit disc, the vibration amount after the rotation of the peak set plate is obtained, that is the shortest path of the power system peak set configuration scheme. According to this path, the traceability control of active power data is analyzed. A schematic diagram of trigonometric membership function is drawn on the basis of input and output variables, and the active power automatic balance control of the power system is completed by an abstract expression of the traceability information of active power data through a schematic diagram. The experimental results show that the maximum control effect can reach 90%, which lays the foundation for the development of the electric industry to automation.