Measurement-Based Load Modeling Considering Frequency Characteristics
He Renmu1, Ye Jing1, Xu Huan1, Lang Binbin2
1. Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control under Ministry of Education, North China Electric Power University Beijing 102206 China 2. China Fulin Windpower Engineering Co. Ltd Beijing 100034 China
Abstract：In small sized isolated power systems or micro systems, when it appeared fault, or involved the special load like shock load etc., load modeling with considering the frequency and the voltage at the same time can better reflect the reality load dynamic characteristic. So an improved measurment-based load modeling approach which involves voltage characteristic and frequency characteristic is presented in this paper. The time simulation of the real power system test evaluated that the model is effective and accurate. And the generalization capability of the improved measurement-based load modeling is analyzed. Case studies on improved measurement-based load modeling show that the model is in accordance with the real system, and prove that we should consider the frequency in some special power systems.
[1] Prabha Kundur. Power system stability and control[M]. America: The McGraw Hill Companies, 1994. [2] He Renmu, Ma Jin, David J Hill. Composite load modeling via measurement approach[J]. IEEE Trans- actions on Power Systems, 2006, 21(2): 663-672. [3] 石景海. 考虑负荷时变性的大区电网负荷建模研究[D]. 北京: 华北电力大学, 2005. [4] 石景海, 贺仁睦. 动态负荷建模中的负荷时变性研究[J]. 中国电机工程学报, 2004, 24(4): 86-90. [5] 贺仁睦.电力系统精确仿真与负荷模型实用化[J]. 电力系统自动化, 2004, 28(16): 4-7. [6] 贺仁睦. 电力系统稳定问题研究的方法论[J]. 电力系统自动化, 1998, 22(9): 9-12. [7] Ma Jin, He Renmu, Hill D J. Load modeling by finding support vectors of load data from field measurements[J]. IEEE Transactions on Power System, 2006, 21(2): 726-735. [8] 周成, 贺仁睦, 王春华. 模型结构对负荷模型泛化能力的影响[J]. 电力系统自动化, 2008, 32(14): 1-5. [9] Ma Jin, Han Dong, He Renmu. Measurement-based load modeling: theory and application[J]. Science in China, 2007, 50(5): 606-617. [10] Han Dong, He Renmu, Xu Yanhui, et al. Measurement-based load modeling validation by artificial three-phase short circuit tests in North East power grid[C]. IEEE PES General Meeting, Tempa: IEEE Power Energy Society, 2007. [11] 张孝, 鞠平, 陈谦, 等. 考虑频率特性的负荷模型研究及应用[J]. 河海大学学报, 2010, 38(3): 353-358. [12] 倪以信, 陈寿孙, 张宝霖. 动态电力系统理论和分析[M]. 北京: 清华大学出版社, 2002. [13] 周鹗. 电机学[M]. 北京: 中国电力出版社, 1995. [14] 鞠平, 马大强. 电力系统负荷建模[M]. 北京: 中国电力出版社. 2008. [15] Nayfeh A H. Introduction perturbation techniques[M]. New York : John Wiley & Sons, 1981.
2011, Vol. 26 
