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电力系统稳定分析用水轮机调节系统模型研究
引用本文:徐广文,张海丽. 电力系统稳定分析用水轮机调节系统模型研究[J]. 水电能源科学, 2011, 29(11): 162-163,134
作者姓名:徐广文  张海丽
作者单位:1. 广东电网公司电力科学研究院,广东广州,510080
2. 中水珠江规划勘测设计有限公司,广东广州,510610
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。

关 键 词:电力系统稳定分析; 水轮机; 调节系统; 调速器模型

Models of Hydro-turbine Regulating System for Stability Analysis of Power System
XU Guangwen,ZHANG Haili. Models of Hydro-turbine Regulating System for Stability Analysis of Power System[J]. International Journal Hydroelectric Energy, 2011, 29(11): 162-163,134
Authors:XU Guangwen  ZHANG Haili
Affiliation:1. Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou 510080, China; 2. China Water Resources Pearl River Planning Surveying and Designing Corporation Limited, Guangzhou 510610, China
Abstract: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.
Keywords:stability analysis of power system   hydro-turbine   regulating system   model
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