Abstract：Research on low frequency oscillation of power grid based on multiple disturbances is the important basis to determine the dynamic stability of interconnected power grid. The paper proposed the concept of multiple disturbances based on the analysis of the power oscillation event happened in Central China Grid, and discovers that multiple disturbances are the important factor to cause low frequency oscillation. The fault chains method can simulate a typical disturbance sequence of flow transferring and overload of transmission lines caused by line faults. It was chosen to analysis power oscillations in interconnected power grid under multiple disturbances. The influence of operation modes on interconnected power grid is studied. The results show that the change of operation modes of the given power grid has a great impact on both the given power grid and another power gird which is connected to it. So the paper proposes a method by monitoring the occurrence sequences of the fault chains and the weak links to prevent low frequency oscillation which can provide the basis for power grid planning and dispatching operation.
陈恩泽, 刘涤尘, 廖清芬, 张洁琼. 多重扰动下的跨区电网低频振荡研究[J]. 电工技术学报, 2014, 29(2): 290-296.
Chen Enze, Liu Dichen, Liao Qingfen, Zhang Jieqiong. Research on Low Frequency Oscillation of Interconnected Power Grid Based on Multiple Disturbances. Transactions of China Electrotechnical Society, 2014, 29(2): 290-296.
[1] 朱方, 赵红光, 刘增煌, 等. 大区电网互联对电力系统动态稳定性的影响[J]. 中国电机工程学报, 2007, 27(1): 1-7. Zhu Fang, Zhao Hongguang, Liu Zenghuang, et al. The influence of large power grid interconnected on power system dynamic stability[J]. Proceedings of the CSEE, 2007, 27(1): 1-7. [2] 石辉, 张勇军, 徐涛. 我国智能电网背景下的低频振荡应对研究综述[J]. 电力系统保护与控制, 2010, 38(24): 242-247. Shi Hui, Zhang Yongjun, Xu Tao. Survey of response to LFO under the background of China smart grid[J]. Power System Protection and Control, 2010, 38(24): 242-247. [3] 戚军, 江全元, 曹一家. 采用时滞广域测量信号的区间低频振荡阻尼控制器设计[J]. 电工技术学报, 2009, 24(6): 154-159. Qi Jun, Jiang Quanyuan, Cao Yijia. Design of damping controller for inter-area low-frequency oscillation using time-delay wide-area measurements [J]. Transactions of China Electrotechnical Society, 2009, 24(6): 154-159. [4] 杨慧敏, 易海琼, 文劲宇, 等. 一种实用的大电网低频振荡概率稳定性分析方法[J]. 电工技术学报, 2010, 25(3): 124-129. Yang Huimin, Yi Haiqiong, Wen Jinyu, et al. A practical stability analysis method for large-scale power system based on low-frequency-oscillation probability[J]. Transactions of China Electrotechnical Society, 2010, 25(3): 124-129. [5] 赵书强, 马燕峰, 顾雪平. 基于区域极点配置的电力系统低频振荡均匀阻尼控制[J]. 电工技术学报, 2009, 24(12): 142-148. Zhao Shuqiang, Ma Yanfeng, Gu Xueping. Uniform damping control of low-frequency oscillations in power systems based on region poles assignment[J]. Transactions of China Electrotechnical Society, 2009, 24(12): 142-148. [6] Demello F. Concepts of synchronous machine stability as affected by excitation control[J]. IEEE Transactions on Power Apparatus and Systems, 1969, 88(4): 316-329. [7] 薛禹胜, 郝思鹏, 刘俊勇, 等. 关于低频振荡分析方法的评述[J]. 电力系统自动化, 2009, 33(3): 1-8. Xue Yusheng, Hao Sipeng, Liu Junyong, et al. A review of analysis methods for low-frequency oscillations[J]. Automation of Electric Power Systems, 2009, 33(3): 1-8. [8] 谷寒雨, 陈陈. 一种新的大型电力系统低频机电模式计算方法[J]. 中国电机工程学报, 2000, 20(9): 50-54. Gu Hanyu, Chen Chen. A new algorithm for the computation of low frequency electro-mechanical oscillation modes of large power systems[J]. Proceedings of the CSEE, 2000, 20(9): 50-54. [9] 印永华, 郭剑波, 赵建军, 等. 美加“8·14”大停电事故初步分析以及应吸取的教训[J]. 电网技术, 2003, 27(10): 8-16. Yin Yonghua, Guo Jianbo, Zhao Jianjun, et al. Preliminary analysis of large scale blackout in interconnected North America power grid on August 14 and lessons to be drawn[J]. Power System Technology, 2003, 27(10): 8-16. [10] 王梅义. 大电网事故分析与技术应用[M]. 北京: 中国电力出版社, 2008. [11] 严剑峰, 于之虹, 田芳, 等. 电力系统在线动态安全评估和预警系统[J]. 中国电机工程学报, 2008, 28(34): 87-93. Yan Jianfeng, Yu Zhihong, Tian Fang, et al. Dynamic Security assessment & early warning system of power system[J]. Proceedings of the CSEE, 2008, 28(34): 87-93. [12] 王娜娜, 刘涤尘, 廖清芬, 等. 基于EMD-TEO及信号能量分析法的主导低频振荡模式识别[J]. 电工技术学报, 2012, 27(6): 198-204. Wang Nana, Liu Dichen, Liao Qingfen, et al. Identifica- tion of the dominant inertial mode based on EMD- TEO and signal energy method[J]. Transactions of China Electrotechnical Society, 2012, 27(6): 198-204. [13] 李天云, 袁明哲, 李军强, 等. 基于EMD和SSI的电力系统低频振荡模态参数识别方法[J]. 电力系统保护与控制, 2011, 39(8): 6-10. Li Tianyun, Yuan Mingzhe, Li Junqiang, et al. Method of modal parameter identification of power system low frequency oscillation based on EMD and SSI[J]. Power System Protection and Control, 2011, 39(8): 6-10. [14] 陈刚, 吴小辰, 柳勇军, 等. 基于频域分解法和广域稳态量测的低频振荡模式辨识[J]. 电力系统保护与控制, 2011, 39(12): 1-6. Chen Gang, Wu Xiaochen, Liu Yongjun, et al. Identification of low-frequency oscillation modes based on frequency domain decomposition method and wide area ambient measurements[J]. Power System Protection and Control, 2011, 39(12): 1-6. [15] 李勋, 龚庆武, 贾晶晶, 等. 基于原子稀疏分解的低频振荡模态参数辨识方法[J]. 电工技术学报, 2012, 27(9): 124-133. Li Xun, Gong Qingwu, Jia Jingjing, et al. Atomic sparse decomposition based identification method for low-frequency oscillation modal parameters[J]. Transactions of China Electrotechnical Society, 2012, 27(9): 124-133. [16] 赵书强, 张一, 马燕峰. 基于数据驱动随机子空间方法在低频振荡辨识中的应用[J]. 电力系统保护与控制, 2013, 41(8): 81-86. Zhao Shuqiang, Zhang Yi, Ma Yanfeng. Data-driven based stochastic subspace identification for low frequency oscillation analysis[J]. Power System Protection and Control, 2013, 41(8): 81-86. [17] 邱夕兆, 于占勋, 雷鸣, 等. 山东电网基于WAMS的低频振荡统计与评估[J]. 电力系统自动化, 2008, 32(6): 95-98. Qiu Xizhao, Yu Zhanxun, Lei Ming, et al. WAMS based statistics and assessment of low frequency oscillation in Shandong power grid[J]. Automation of Electric Power Systems, 2008, 32(6): 95-98. [18] 陈恩泽, 刘涤尘, 廖清芬, 等. 基于事故链的电网低频振荡及脆弱性分析[J]. 中国电机工程学报, 2011, 31(28): 42-48. Chen Enze, Liu Dichen, Liao Qingfen, et al. Low frequency oscillation and vulnerability analysis of power grid based on the fault chains[J]. Proceedings of the CSEE, 2011, 31(28): 42-48. [19] 廖清芬. 多重扰动下特高压跨区电网低频振荡的研究[D]. 武汉: 武汉大学, 2008.
2014, Vol. 29 
