计及静态临界稳定特性的感应电动机群聚合等值方法

发布时间：2018-04-11 16:04

  本文选题：感应电动机群聚合 + 静态临界稳定特性　； 参考：《电网技术》2017年09期

【摘要】：负荷模型对电力系统稳定计算结果有着重要的影响,而感应电动机群聚合是负荷等值建模的重要组成部分。考虑感应电动机静态临界稳定特性的影响,提出了一种感应电动机群负荷聚合等值的新方法。首先,分析了表征电动机静态临界稳定特性强弱的指标,据此将电动机群负荷分为稳定性好和稳定性差的2组。而后,基于各电动机的物理机理,并综合考虑其静态临界稳定特性,对分组后的感应电动机群负荷进行聚合。最后,以单机无穷大系统、WSCC-9节点系统和EPRI-36节点系统为算例,考察了该聚合方法与其他方法所得等值模型在不同故障方式下的系统响应,验证了所提方法在不同运行条件下的适用性和所得等值模型的准确性。
[Abstract]:Load model plays an important role in power system stability calculation, and induction motor cluster aggregation is an important part of load equivalence modeling.Considering the influence of static critical stability of induction motor, a new method of group load aggregation equivalent of induction motor is proposed.Firstly, the index of the static critical stability characteristic of the motor is analyzed, according to which the motor group load is divided into two groups which have good stability and poor stability.Then, based on the physical mechanism of each motor and considering its static critical stability, the group load of induction motor after grouping is aggregated.Finally, taking the single-machine infinite bus system WSCC-9-bus system and the EPRI-36 node system as examples, the system responses of the aggregation method and the equivalent model obtained by other methods under different fault modes are investigated.The applicability of the proposed method under different operating conditions and the accuracy of the obtained equivalent model are verified.
【作者单位】： 浙江大学电气工程学院;国网浙江省电力公司杭州供电公司;浙江电力调度通信中心;
【基金】：国家自然科学基金资助项目(51377143) 国家电网公司科技项目(基于智能测量终端量测数据的负荷特性分析及建模方法研究(52110415000B)~~
【分类号】：TM346
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本文编号：1736696