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目前大部分潮流控制方法都需要建立比较精确的数学模型,而模糊控制技术不需要建立精确的数学模型,解决多变量非线性系统具有明显的优点。为此,针对雅砻江官地水电站作为电源端点,控制月城地区潮流方案存在的多变量、非线性和难建模等特性,将模糊控制与PID控制的优势相结合,实现了对电网潮流控制系统参数的有效控制。该系统的各项性能指标良好,遇到干扰可以进行自我调整,具有一定的自适应性。实际运行结果表明,模糊PID控制算法不但简单实用,而且超调量小,控制效果良好。
At present, most power flow control methods need to establish a more accurate mathematical model, and fuzzy control technology does not need to establish an accurate mathematical model, to solve the multivariable nonlinear system has obvious advantages. Therefore, in view of the characteristics of Yarlung Gudang Hydroelectric Power Station as the power supply terminal and the control of the power flow scheme in the Yulin area, combining the advantages of fuzzy control and PID control, the power grid power flow Effective control of system parameters. The performance of the system is good, in the face of interference can be self-tuning, with a certain degree of adaptability. The actual operation results show that the fuzzy PID control algorithm is not only simple and practical, but also small overshoot, the control effect is good.