摘要
针对机械液压式调速器模型脱离实际、简单、无法反映设备的真实状态,以BPA4.0为例,分析了现有电力系统稳定分析程序的不足,开发了符合实际的调速器模型,并与用非线性高阶传递函数表示的原动机模型构成了自定义的水轮机调节系统模型。实例结果表明,该模型更接近实际、吻合度高、平均几何相对误差小,可满足电力系统稳定分析的需求。
Taking BPA4.0 for example, the deficiencies of the existing power system stability analysis programs were analyzed. The model of mechanical hydraulic governor was backward, and the simulating results could be unrealistic. The model of ideal turbine was too simple and could not simulate the real state of a device. According to the actual needs, the model of a turbine governing system was constituted with the realistic governor model and the prime mover model that was expressed as a higher order nonlinear transfer function. By comparison with the measured dynamic process, the simulation results of the defined model was more realistic than the model provided BPA4.0 and could meet the needs of power system stability analysis, whose goodness of fit and geometric average relative error of was small.
出处
《水电能源科学》
北大核心
2011年第11期162-163,134,共3页
Water Resources and Power
关键词
电力系统稳定分析
水轮机
调节系统
调速器模型
stability analysis of power system
hydro-turbine
regulating system
model
