六相电励磁同步风力发电机组的稳态模型

发布时间：2018-07-10 14:49

本文选题：六相电励磁同步发电机 + 稳态模型　；参考：《电力系统保护与控制》2016年01期

【摘要】：六相电励磁同步风力发电机(SP-EESWG)是一种特殊的变速恒频风电机组。以风电机组各部分的数学模型为基础,详细考虑风力机的风能利用特性、整流-逆变电路的稳态特性,以及机组所采用的最大风能跟踪控制、直流电容电压控制和并网逆变器控制对稳态特性的影响,建立了SP-EESWG的稳态模型,并将其应用于含SP-EESWG电网的潮流计算。最后,以单机无穷大系统和IEEE 14节点系统两个算例验证了所提模型的正确性和有效性。仿真结果表明,不同风速情况下,现有文献广泛采用的风电机组简化潮流模型与该模型的计算结果均有不同程度的误差。其中,一阶和二阶简化模型的误差较大,不宜用于SP-EESWG的稳态特性分析;当风速处于额定风速附近时,三阶简化模型与该模型的误差可以忽略。
[Abstract]:SP-EESWG is a special variable speed constant frequency wind turbine. Based on the mathematical model of each part of wind turbine, the characteristics of wind power utilization, the steady-state characteristics of rectifier inverter circuit and the maximum wind energy tracking control are considered in detail. Based on the influence of DC capacitor voltage control and grid-connected inverter control on steady state characteristics, the steady state model of SP-EESWG is established and applied to power flow calculation of power grid with SP-EESWG. Finally, two examples of single-machine infinite bus system and IEEE 14-bus system are given to verify the correctness and validity of the proposed model. The simulation results show that the simplified power flow model of wind turbine widely used in the existing literature and the calculation results of the model have different degrees of error under different wind speeds. The errors of the first and second order simplified models are too large to be used to analyze the steady state characteristics of SP-EESWG, and the errors between the third order simplified model and the SP-EESWG model can be neglected when the wind speed is near the rated wind speed.
【作者单位】：输配电装备及系统安全与新技术国家重点实验室(重庆大学);国家电网九江供电公司;
【基金】：国家自然科学基金项目(51307186)~~
【分类号】：TM315

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