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| 主动配电网中谐波对量测误差及其状态估计影响的仿真分析 | |
| 引用本文： | 高亚静,李瑞环,吴文传.主动配电网中谐波对量测误差及其状态估计影响的仿真分析[J].电力系统自动化,2015,39(9):88-94. |
| 作者姓名： | 高亚静 李瑞环 吴文传 |
| 作者单位： | 1. 新能源电力系统国家重点实验室,华北电力大学,河北省保定市071003 2. 新能源电力系统国家重点实验室,华北电力大学,河北省保定市071003;清华大学电机工程与应用电子技术系,北京市100084;电力系统及发电设备控制和仿真国家重点实验室,清华大学,北京市100084 3. 清华大学电机工程与应用电子技术系,北京市100084;电力系统及发电设备控制和仿真国家重点实验室,清华大学,北京市100084 |
| 基金项目： | 国家科技支撑计划资助项目(2013BAA01B01)；黔科合重大专项（〔2012〕6022） |
| 摘 要： | 针对主动配电网,构建了考虑谐波影响的量测系统模型,并分析了其对配电网状态估计影响。首先,介绍了主动配电网谐波源的电流源模型,并阐述了在MATLAB/Simulink仿真环境下构建谐波源模型的步骤。其次,建立了电压量测回路和电流量测回路的模型,详细介绍了各自电缆的频率特性,并根据现有的电子式电能表工作原理给出了功率量测的计算公式,建立了完整的量测系统,对量测误差进行了分析。最后,通过仿真并利用IEEE 13节点配电网络从电缆长度、谐波次数、非线性负荷等多个方面详细分析了各因素对配电网量测及状态估计的影响。 |
| 关 键 词： | 谐波 量测系统 状态估计 主动配电网 |
| 收稿时间： | 2014/11/7 0:00:00 |
| 修稿时间： | 4/7/2015 12:00:00 AM |
Simulation Analysis on Influence of Harmonics on Measuring Errors and State Estimation in Active Distribution Network |
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| GAO Yajing,LI Ruihuan and WU Wenchuan.Simulation Analysis on Influence of Harmonics on Measuring Errors and State Estimation in Active Distribution Network[J].Automation of Electric Power Systems,2015,39(9):88-94. | |
| Authors: | GAO Yajing LI Ruihuan and WU Wenchuan |
| Affiliation: | State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China,State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Baoding 071003, China;Department of Electrical Engineering, Tsinghua University, Beijing 100084, China;State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing 100084, China) and Department of Electrical Engineering, Tsinghua University, Beijing 100084, China; State Key Laboratory of Control and Simulation of Power System and Generation Equipments, Tsinghua University, Beijing 100084, China |
| Abstract: | A measuring system model considering harmonics is developed with its effect on state estimation of the active distribution network analyzed. To begin with, the current injection model of harmonics in the distribution network is described. The MATLAB/Simulink based procedure for simulating harmonic sources is also explained. Secondly, the models of voltage and current measurement channel are proposed, respectively. The frequency characteristics of their channel cables are accounted for in detail. The whole measuring system is built with the measuring errors analyzed according to the currently available working principle of the electronic energy meter. To demonstrate the effect on measurement and state estimation by the measuring system, various numerical tests on a modified IEEE 13-bus test feeder are made by simulation that considers different scenarios including different lengths of the channel cable and different compositions of nonlinear load. This work is supported by National Key Technologies R&D Program (No. 2013BAA01B01). |
| Keywords: | harmonics measuring system state estimation active distribution network |
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