Liang Likai1, 2, Han Xueshan1, Wang Yanling1, 2, Kong Lingyuan3
1. Shandong University Jinan 250061 China; 2. Shandong University (weihai) Weihai 264209 China; 3. Zaozhuang Power Supply Company Zaozhuang 277100 China
Abstract:In order to estimate value of transmission line loadability under operation condition, taking the system as a whole and considering the effect of parallel flow on the transmission line loadability in interconnected system, the dual-side resource equivalent model based on dual-port Norton equivalence is proposed. Based on state estimation in power system, equivalent parameter on-line tracking is realized. Furthermore, the analysis and calculation of online value on loadability of transmission line are implemented. The feasibility and effectiveness of the equivalent model and the method are confirmed by the analysis of the loadability of Shandong 220kV transmission line under operation.
梁立凯, 韩学山, 王艳玲, 孔令元. 输电线路载荷能力在线定值[J]. 电工技术学报, 2013, 28(2): 279-284.
Liang Likai, Han Xueshan, Wang Yanling, Kong Lingyuan. Online Valuation of Transmission Line Loadability. Transactions of China Electrotechnical Society, 2013, 28(2): 279-284.
[1] M W Davis. A new thermal rating approach: the real-time thermal rating system for strategic overhead conductor transmission lines(PartⅠ): general descri- ption and justification of the real-time thermal rating system[J]. IEEE Transactions on Power Apparatus and Systems, 1978, 96(3): 803-809. [2] M W Davis. A new thermal rating approach: The real-time thermal rating system for strategic overhead conductor transmission lines(Part II): steady state thermal rating[J]. IEEE Transactions on Power Apparatus and Systems, 1978, 97(3): 810-825. [3] 陈芳, 韩学山, 康凯, 等. 基于SCADA信息追踪输电线路热定值[J]. 电力系统自动化, 2010, 34(5): 81-85. Chen Fang, Han Xueshan, Kang Kai, et al. Tracking of dynamic thermal rating of transmission line based on SCADA[J]. Automation of Electric Power System, 2010, 34(5): 81-85. [4] 王孟夏, 韩学山, 蒋哲. 计及电热耦合的潮流数学模型与算法研究[J]. 电力系统自动化, 2008, 30(14): 30-34. Wang Mengxia, Han Xueshan, Jiang Zhe. Power flow model and algorithm considering electro-thermal coupling[J]. Automation of Electric Power System, 2008, 30(14): 30-34. [5] 丁希亮, 韩学山, 张辉, 等.电热协调潮流及输电线路温度的变化过程分析[J]. 中国电机工程学报, 2008, 28(19): 138-144. Ding Xiliang, Han Xueshan, Zhang Hui, et al. Analysis on electrothermal coordination power flow and transmission line temperature variation process[J]. Proceedings of the CSEE, 2008, 28(19): 138-144. [6] H P St Clair. Practical concepts in capability and performance of transmission lines[J]. AIEE Transactions on Power Apparatus and Systems, 1953, 72(3): 1152- 1157. [7] R D Dunlop, R Gutman, P P Marchenko. Analytical development of loadability characteristics for EHV and UHV transmission lines[J]. IEEE Transactions on Power Apparatus and Systems, 1979, 98(2): 606-617. [8] Richard Gutman. Application of line Loadability concepts to operating studies[J]. IEEE Transactions on Power Systems, 1988, 3(4): 1426-1433. [9] 徐政. 超、特高压交流输电系统的输送能力分析[J]. 电网技术, 1995, 19(8): 7-12. Xu Zheng. EHV/UHV AC transmission capability analysis[J]. Power System Technology, 1995, 19(8): 7-12. [10] 柴旭峥, 梁曦东, 曾嵘. 交流输电线路输送能力曲线计算方法的改进[J]. 电网技术, 2005, 29(24): 20-24. Chai Xuzheng, Liang Xidong, Zeng Rong. An improved calculation method for power transmitting capability curve of AC transmission line[J]. Power System Technology, 2005, 29(24): 20-24. [11] 孔令元, 韩学山, 王孟夏, 等. 输电线路载荷能力在线定值研究[C]. 第25届中国高等学校电力系统及其自动化专业年会, 2009. [12] 孔令元, 输电线路载荷能力在线定值研究[D]. 济南:山东大学, 2010. [13] 王漪, 柳焯. 基于戴维南等值的系统参数跟踪估计[J]. 电网技术, 2000, 24(11): 28-30. Wang Qi, Liu Zhuo. Tracking and estimation of system parameter using Thevenin equivalent[J]. Power System Technology, 2000, 24(11): 28-30. [14] 罗华伟, 吴政球, 戴庆华, 等. 电网戴维南等值参数的快速计算[J]. 中国电机工程学报, 2009, 29(1): 35-39. Luo Huawei, Wu Zhengqiu, Dai Qinghua, et al. Fast computation of Thevenin equivalent parameters [J]. Proceedings of the CSEE, 2009, 29(1):35-39. [15] 电力行业电网运行与控制标准化技术委员会. DL755—2001 电力系统安全稳定导则[S]. 2001.