Research on the Frequency Control Strategy of Hydro-Thermal Power Generating Units

doi:10.11930/j.issn.1004-9649.201907127

Abstract

Abstract: Since being a large number of hydro power units in the Hami-Zhengzhou UHVDC transmission network, it is of great significance for the safety and stability of high-power transmission to master the primary frequency characteristics and differences of hydro power and thermal power. In this paper, the Hami-Zhengzhou UHVDC transmission power grid is taken as a typical research object. The influence of different control parameters on the primary frequency control under the condition of higher hydropower load ratio is simulated and analyzed. The joint adjustment scheme between thermal power unit and hydropower unit is given. The control strategy and feasibility suggestions are put forward.

Key words: UHVDC transmission system, hydro-thermal power units, dynamic simulation, frequency control, frequency stability

TANG Yaohua, GUO Weimin, CUI Yang. Research on the Frequency Control Strategy of Hydro-Thermal Power Generating Units[J]. Electric Power, 2020, 53(6): 153-160,178.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.201907127

https://www.electricpower.com.cn/EN/Y2020/V53/I6/153

References

[1] 李明节. 大规模特高压交直流混联电网特性分析与运行控制[J]. 电网技术, 2016, 40(4): 985-991
LI Mingjie. Characteristic analysis and operational control of large-scale hybrid UHV AC/DC power grids[J]. Power System Technology, 2016, 40(4): 985-991
[2] 刘振亚. 中国特高压交流输电技术创新[J]. 电网技术, 2013, 37(3): 567-574
LIU Zhenya. Innovation of UHVAC transmission technology in China[J]. Power System Technology, 2013, 37(3): 567-574
[3] 汤涌, 郭强, 周勤勇, 等. 特高压同步电网安全性论证[J]. 电网技术, 2016, 40(1): 97-104
TANG Yong, GUO Qiang, ZHOU Qinyong, et al. Security evaluation for UHV synchronized power grid[J]. Power System Technology, 2016, 40(1): 97-104
[4] 陈国平, 李明节, 许涛, 等. 我国电网支撑可再生能源发展的实践与挑战[J]. 电网技术, 2017, 41(10): 3095-3103
CHEN Guoping, LI Mingjie, XU Tao, et al. Practice and challenge of renewable energy development based on interconnected power grids[J]. Power System Technology, 2017, 41(10): 3095-3103
[5] 高林, 戴义平, 马庆中, 等. 特高压线路解列后区域互联电网一次调频稳定性研究[J]. 电网技术, 2009, 33(20): 27-32
GAO Lin, DAI Yiping, MA Qingzhong, et al. Research on stability of primary frequency regulation of interconnected power system after trip-out of ultra high voltage transmission line[J]. Power System Technology, 2009, 33(20): 27-32
[6] 王华伟, 韩民晓, 张健, 等. 送端弱系统对特高压直流工程调试和运行的影响[J]. 中国电力, 2014, 47(10): 47-51
WANG Huawei, HAN Minxiao, ZHANG Jian, et al. Impacts of weak AC system on the commissioning and operation of UHVDC transmission project[J]. Electric Power, 2014, 47(10): 47-51
[7] 胡浩, 仲悟之, 宋新立, 等. 特高压联络线AGC控制策略模型[J]. 中国电力, 2015, 48(4): 83-89
HU Hao, ZHONG Wuzhi, SONG Xinli, et al. AGC power control strategy model of UHVAC Tie-line[J]. Electric Power, 2015, 48(4): 83-89
[8] HUANG H, RAMASWAMI V. Design of UHVDC converter station[C]//2005 IEEE/PES Transmission & Distribution Conference & Exposition: Asia and Pacific, Dalian, China. IEEE, 2005.
[9] 刘乐, 刘娆, 李卫东. 互联电网中区域调频责任及其分配方式[J]. 电力系统自动化, 2008, 32(16): 20-23, 37
LIU Le, LIU Rao, LI Weidong. Area frequency regulation obligation and its distribution mode in interconnected power system[J]. Automation of Electric Power Systems, 2008, 32(16): 20-23, 37
[10] 叶健忠, 邹俊雄, 龙霏, 等. 地区电网火电机组孤网运行频率控制策略研究[J]. 电力系统保护与控制, 2012, 40(7): 123-128
YE Jianzhong, ZOU Junxiong, LONG Fei, et al. Research on frequency control strategy for isolated grid operation of thermal power unit in regional power network[J]. Power System Protection and Control, 2012, 40(7): 123-128
[11] 李卓霖. 大型火电机组一次调频控制策略的优化[J]. 发电设备, 2011, 25(2): 131-133
LI Zhuolin. Optimization of control strategy for primary frequency modulation of large-capacity thermal power units[J]. Power Equipment, 2011, 25(2): 131-133
[12] 田亮, 曾德良, 刘吉臻, 等. 简化的330MW机组非线性动态模型[J]. 中国电机工程学报, 2004, 24(8): 180-184
TIAN Liang, ZENG Deliang, LIU Jizhen, et al. A simplified non-linear dynamic model of 330 MW unit[J]. Proceedings of the CSEE, 2004, 24(8): 180-184
[13] LALOR G, MULLANE A, O'MALLEY M. Frequency control and wind turbine technologies[J]. IEEE Transactions on Power Systems, 2005, 20(4): 1905-1913.
[14] 宋新立, 刘肇旭, 李永庄, 等. 电力系统稳定计算中火电厂调速系统模型及其应用分析[J]. 电网技术, 2008, 32(23): 44-49
SONG Xinli, LIU Zhaoxu, LI Yongzhuang, et al. Analysis on speed governing system model for fossil-fuel generating plant and its application in power system stability simulation[J]. Power System Technology, 2008, 32(23): 44-49
[15] 邓朴, 皮显松, 马世英, 等. 高频事故下潮流转移性质和调速器状态转移控制[J]. 电力系统自动化, 2014, 38(11): 123-129
DENG Pu, PI Xiansong, MA Shiying, et al. Properties of power flow transfers under over-frequency accident conditions and speed governor state transition control[J]. Automation of Electric Power Systems, 2014, 38(11): 123-129
[16] 刘国富, 王晓瑜, 金玉成. 水轮机调速器改进型控制结构结合增量式PID算法的功率调节及一次调频的实现[J]. 大电机技术, 2016(4): 61-64
LIU Guofu, WANG Xiaoyu, JIN Yucheng. The realization of improved power regulation control structure and the frequency primary regulation for hydraulic turbine governor[J]. Large Electric Machine and Hydraulic Turbine, 2016(4): 61-64
[17] 鄢波, 何钧, 齐聪. 火电机组汽轮机调速系统建模方法与优化[J]. 发电设备, 2016, 30(4): 219-222
YAN Bo, HE Jun, QI Cong. Modeling method of turbine speed governing system in thermal power units and its optimization[J]. Power Equipment, 2016, 30(4): 219-222
[18] 金娜, 刘文颖, 曹银利, 等. 大容量机组一次调频参数对电网频率特性的影响[J]. 电力系统保护与控制, 2012, 40(1): 91-95, 100
JIN Na, LIU Wenying, CAO Yinli, et al. Influence on the grid frequency characteristic by the parameters of primary frequency modulation of large capacity generator units[J]. Power System Protection and Control, 2012, 40(1): 91-95, 100
[19] 王青, 杨悦, 汪宁渤, 等. 风电与火电“打捆”外送系统频率调控策略研究[J]. 中国电力, 2014, 47(3): 6-13
WANG Qing, YANG Yue, WANG Ningbo, et al. Study on the frequency adjustment characteristics of wind power uniting thermal power outgoing system[J]. Electric Power, 2014, 47(3): 6-13
[20] 汤涌, 宋新立, 刘文焯, 等. 电力系统全过程动态仿真中的长过程动态模型: 电力系统全过程动态仿真软件开发之三[J]. 电网技术, 2002, 26(11): 20-25, 52
TANG Yong, SONG Xinli, LIU Wenzhuo, et al. Power system full dynamic simulation part Ⅲ: long term dynamic models[J]. Power System Technology, 2002, 26(11): 20-25, 52