Abstract：After analyzing the shortcomings of the existing composite load model in detail, this paper points out the necessity of reflecting the voltage regulation result of distribution network in composite load model. A composite load model without adding the number of model parameters is proposed and established to reflect the voltage regulation of distribution network based on the measurements. In this model, an actual transformer is used to simulate the effects of distribution network, which is equivalent with a PI type circuit. According to the inverse voltage regulation principle, the voltage average value of the steady high voltage bus is regarded as the actual transformer ratio to represent the result of distribution network voltage regulation. Static load is described as ZIP model that considers the effect of reactive power compensation. The genetic algorithm based on recursive strategy is adopted in the identification algorithm. Example analysis shows that the proposed composite load model is slightly better than the present composite load model on the performance of self-describing and generalization abilities. However, it has significant advantages, including reflecting the voltage regulation ability of power grid, maintaining the load bus voltage stability and the fitting performance to dynamic behavior of load under different voltage.
屈星, 李欣然, 宋军英, 李培强, 曹一家. 考虑配电网调压的综合负荷模型[J]. 电工技术学报, 2018, 33(4): 759-770.
Qu Xing, Li Xinran, Song Junying, Li Peiqiang, Cao Yijia. Composite Load Model Considering Voltage Regulation of Distribution Network. Transactions of China Electrotechnical Society, 2018, 33(4): 759-770.
[1] 汤涌, 张东霞, 张红斌, 等. 东北电网大扰动实验仿真计算中的综合负荷模型及其拟合参数[J]. 电网技术, 2007, 31(4): 75-78. Tang Yong, Zhang Dongxia, Zhang Hongbin, et al.Synthesis load model and its fitting parameters in simulation of large disturbance test carried out in Northeast China power grid[J]. Power System Tech- nology, 2007, 31(4): 75-78. [2] 张红斌, 汤涌, 张东霞, 等. 不同负荷模型对东北电网送电能力的影响分析[J]. 电网技术, 2007, 31(4): 55-58. Zhang Hongbin, Tang Yong, Zhang Dongxia, et al.Analysis on effects of different load models on transmitting capacity of North China power grid[J]. Power System Technology, 2007, 31(4): 55-58. [3] 贺仁睦, 叶静, 徐欢, 等. 计及频率特性的实测负荷建模[J]. 电工技术学报, 2011, 26(5): 165-170, 183. He Renmu, Ye Jing, Xu Huan, et al.Measurement- based load modeling considering frequency characteristics[J]. Transactions of China Electro- technical Society, 2011, 26(5): 165-170, 183. [4] 贺仁睦, 韩冬, 杨琳. 负荷模型对电网安全性的影响研究[J]. 电网技术, 2007, 31(5): 1-5. He Renmu, Han Dong, Yang Lin.Study on effect of load models on power system security[J]. Power System Technology, 2007, 31(5): 1-5. [5] 朱建全, 刘峰, 梅生伟, 等. 基于证据推理的电力负荷建模[J]. 电工技术学报, 2015, 30(15): 89-95. Zhu Jianquan, Liu Feng, Mei Shengwei, et al.Electric load modeling based on evidence reason- ning[J]. Transaction of China Electrotechnical Society, 2015, 30(15): 89-95. [6] 李龙, 魏靖, 黎灿兵, 等. 基于人工神经网络的负荷模型预测[J]. 电工技术学报, 2015, 30(8): 225-230. Li Long, Wei Jing, Li Canbing, et al.Prediction of load model based on artificial neural network[J]. Transaction of China Electrotechnical Society, 2015, 30(8): 225-230. [7] 梁伟, 鞠平, 余一平. 考虑频率特性的感应电动机负荷模型的对比研究[J]. 电力系统保护与控制, 2014, 42(9): 132-138. Liang Wei, Ju Ping, Yu Yiping.Comparative study of the induction motor load models with and without considering frequency characteristic[J]. Power System Protection and Control, 2014, 42(9): 132-138. [8] 李欣然, 马亚辉, 曹一家, 等. 一种双馈式风力发电系统的等效模型[J]. 电工技术学报, 2015, 30(8): 210-217. Li Xinran, Ma Yahui, Cao Yijia, et al.An equivalent model of double-fed wind generation system[J]. Transactions of China Electrotechnical Society, 2015, 30(8): 210-217. [9] 苏天诺, 邹明轩, 彭光强, 等. 基于统计综合法和三电平特性的高速动车组暂态负荷建模[J]. 电工技术学报, 2014, 29(6): 257-262. Su Tiannuo, Zou Mingxuan, Peng Guangqiang, et al.Transient load modeling of high speed multiple units based on the statistical syntheses method and three- level characteristics[J]. Transactions of China Electrotechnical Society, 2014, 29(6): 257-262. [10] 李德丰, 鞠平. 电力系统综合负荷模型的可辨识性研究[J]. 电力系统自动化, 1997, 21(7): 10-14. Li Defeng, Ju Ping.A study on the identifiability of electric load models[J]. Automation of Electric Power Systems, 1997, 21(7): 10-14. [11] 季文伟, 王茂海, 马平, 等. 基于实测PMU数据的风电综合负荷参数辨识[J]. 电力系统保护与控制, 2015, 43(18): 42-47. Ji Wenwei, Wang Maohai, Ma Ping, et al.Wind power comprehensive load parameter identification based on PMU data[J]. Power System Protection and Control, 2015, 43(18): 42-47. [12] 王元凯, 袁晓冬, 柏晶晶, 等. 基于信息扩散估计的负荷综合建模[J]. 电力系统保护与控制, 2014, 42(6): 91-97. Wang Yuankai, Yuan Xiaodong, Bo Jingjing, et al.Comprehensive load modeling based on information spread estimation[J]. Power System Protection and Control, 2014, 42(6): 91-97. [13] 王振树, 卞绍润, 刘晓宇, 等. 基于混沌与量子粒子群算法相结合的负荷模型参数辨识研究[J]. 电工技术学报, 2014, 29(12): 211-217. Wang Zhenshu, Bian Shaorun, Liu Xiaoyu, et al.Research on load model parameter identification based on the CQDPSO algorithm[J]. Transactions of China Electrotechnical Society, 2014, 29(12): 211-217. [14] 汤涌, 张红斌, 侯俊贤, 等. 考虑配电网络的综合负荷模型[J]. 电网技术, 2007, 31(5): 34-38. Tang Yong, Zhang Hongbin, Hou Junxian, et al.A synthesis load model with distribution network[J]. Power System Technology, 2007, 31(5): 34-38. [15] 陈谦, 孙建波, 蔡敏, 等. 考虑配电网络综合负荷模型的参数确定[J]. 中国电机工程学报, 2008, 28(16): 45-50. Chen Qian, Sun Jianbo, Cai Min, et al.Parameters determination of synthesis load model considering distribution network connection[J]. Proceedings of the CSEE, 2008, 28(16): 45-50. [16] 鞠平, 汤涌, 沈伟伟, 等. 带理想变压器的综合负荷模型[J]. 电力自动化设备, 2011, 31(8): 1-5. Ju Ping, Tang Yong, Shen Weiwei, et al.Synthesis load model with ideal transformer[J]. Electric Power Automation Equipment, 2011, 31(8): 1-5. [17] 李欣然, 钱军, 王立德, 等. 配电网集结等效的异步电动机综合负荷模型及其总体测辩建模[J]. 电工技术学报, 2009, 24(4): 175-185. Li Xinran, Qian Jun, Wang Lide, et al.Systhesis induction motor model of power composite load considering distribution network structure[J]. Transa- ctions of China Electrotechnical Society, 2009, 24(4): 175-185. [18] 谷庆利. 一种新的综合负荷机理性动态模型[D]. 西安: 西安交通大学, 2004. [19] 徐先勇, 徐磊. 带负荷调压变压器的调压特性分析[J]. 华东电力, 1997(1): 22-26. Xu Xianyong, Xu Lei.Voltage regulation characteristics analysis of on load tap changer transformer[J]. East China Electric Power, 1997(1): 22-26. [20] 李欣然, 金群, 刘艳阳, 等. 遗传策略的综合改进及其在负荷建模中的应用[J]. 电网技术, 2006, 30(11): 40-46. Li Xinran, Jin Qun, Liu Yanyang, et al.Synthetic improvements of genetic strategies and their application in power load modeling[J]. Power System Technology, 2006, 30(11): 40-46. [21] 鞠平, 张建勇. 电力系统建模基本理论研究综述[J]. 电力科学与技术学报, 2011, 26(1): 4-12. Ju Ping, Zhang Jianyong.Basic theory reviews of power system modeling[J]. Journal of Electric Power Science and Technology, 2011, 26(1): 4-12.
2018, Vol. 33 
