R&D and Application of Plant-Wide Load Control System for Thermal Power Plants

doi:10.11930/j.issn.1004-9649.2016.12.096.05

Abstract

Abstract: To solve the problem that the current AGC mode cannot guarantee the economic and safe operation of the power plant simultaneously, the current development and the applications of the plant-wide load control system are analyzed, and the study on the key technologies such as the system architecture and the plant-wide optimal load distribution model is conducted in this paper. First, one dual redundant plant-wide load control system based on the embedded device is proposed, which can not only meet the security and real-time requirements of the power grid, but also realize high information integration of the plant. Then, based on the traditional plant-wide load distribution model that fulfills the minimum coal consumption rate, a new online multi-objective load optimal distribution model is established with the consideration of the frequency regulation requirements. The simulation results show that with the model, the average gross coal consumption rate can be reduced by about 0.3 g/(kW·h). At the end, the main functions of the plant-wide load control system are introduced, which could provide reference for the implementation and reconstruction of the system.

Key words: thermal power plant, automatic generation control, plant-wide load control, system architecture, control strategy, energy conservation

CLC Number:

TM621
TK39

NIU Honghai, LI Bing, CHEN Jun. R&D and Application of Plant-Wide Load Control System for Thermal Power Plants[J]. Electric Power, 2016, 49(12): 96-100.

Add to citation manager EndNote|Ris|BibTeX

URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.12.096.05

https://www.electricpower.com.cn/EN/Y2016/V49/I12/96

References

[1] 王庭飞，孙斌，郭翔，等．节能发电调度技术研究及实践与效果分析[J]．南方电网技术，２００９，３（S１）：１－７．
WANG Tingfei, SUN Bin, GUO Xiang, et al. Study of the technology of energy-conservation power generation dispatch & analysis on the practice and effect[J]. Southern Power System Technology, 2009, 3(S1): 1-7.
[2] 冯士刚，艾芊. 火电站多目标负荷调度及算法的研究[J]. 动力工程，２００８，２８（３）：４０４－４０７．
FENG Shigang, AI Qian. Study on multi-objective load dispatch of thermal power plant and its algorithm[J]. Journal of Power Engineering, 2008, 28(3): 404-407.
[3] 郝润田，刘彦丰，高建强. 机组间在线负荷优化模型及其应用[J]. 汽轮机技术，２００８，５０（１）：６２－６４.
HAO Runtian, LIU Yanfeng, GAO Jianqiang. The model of on- line optimal load among units and its application[J]. Turbine Technology, 2008, 50(1): 62-64.
[4] 黄国和，张晓萱，徐鸿. 电厂负荷分配与配煤优化耦合模型的研究[J]. 华东电力，２００９，３７（７）：１２０２－１２０６.
HUANG Guohe, ZHANG Xiaoxuan, XU Hong. Optimization models for load distribution and coal blending in power plants[J]. East China Electric Power, 2009, 37(7): 1202-1206.
[5] 万文军，周克毅，胥建群，等. 动态系统实现火电厂机组负荷优化分配[J]. 中国电机工程学报，２００５，２５（２）：１２５－１２９．
WAN Wenjun, ZHOU Keyi, XU Jianqun, et al. Dynamic system on economic dispatch among thermal power units[J]. Proceedings of the CSEE, 2005, 25(2): 125-129.
[6] 方彦军，伍洲，王琛. 集散遗传算法在厂级 AGC 负荷分配中的应用[J]. 电网技术，２０１０，３４（７）：１９０－１９４．
FANG Yanjun, WU Zhou, WANG Chen. Application of gather- scattering genetic algorithm to load distribution of AGC in plant level [J]. Power System Technology, 2010, 34(7): 190-194.
[7] 孙兴平，周震海，康松. 关于凝汽式机组负荷优化分配算法的讨论[J]. 中国电力，２００１，３４（８）：５６－５９．
SUN Xingping, ZHOU Zhenhai, KANG Song. Discussion on the optimized load distribution of condensing generation units[J]. Electric Power, 2001, 34(8): 56-59.
[8] 姚静，方彦军. 厂级 AGC 机组负荷优化分配系统研究[J]. 汽轮机技术，２０１２，５４（１）：５２－５４, 58．
YAO Jing, FANG Yanjun. Research on optimal load distribution system for AGC units [J]. Turbine Technology, 2012, 54(1): 52-54, 58.
[9] 陈亮，马煜华，骆晓明. 广东电网 AGC 运行需求与控制模式探讨[J]. 电力自动化设备，２００４，２４（１２）：８１－８３．
CHEN Liang, MA Yuhua, LUO Xiaoming. Research on operation demand and control of AGC in Guangdong power grid [J]. Electric Power Automation Equipment, 2004, 24(12): 81-83.
[10] 曹文亮，王兵树，高建强，等. 火电厂厂级负荷优化分配软件设计[J]. 电力系统自动化，２００４，２８（５）：８０－８４．
CAO Wenliang, WANG Bingshu, GAO Jianqiang, et al. Design of strategy for turbine speed control under low frequency oscillation [J]. Automation of Electric Power Systems, 2011, 35(14): 87-92.
[11] 王治国，刘吉臻，谭文，等. 基于快速性与经济性多目标优化的火电厂厂级负荷分配研究[J]. 中国电机工程学报，２００６，２６（１９）： 86-92.
WANG Zhiguo, LIU Jizhen, TAN Wen, et al. Multi-objective optimal load distribution based on speediness and economy in power plants [J]. Proceedings of the CSEE, 2006, 26(19): 87-92.
[12] 卢连成，肖凌涛，温柏坚，等. 妈湾电厂厂级自动发电控制系统的设计与实现[J]. 电力系统自动化，２０１１，３５（１７）：１１１－１１５．
LU Liancheng, XIAO Lingtao, WEN Baijian, et al. Design and implementation of a plant-level automatic generation control system for Mawanpower plant[J]. Automation of Electric Power Systems, 2011, 35(17): 111-115.
[13] 王友，马晓茜，刘翱. 自动发电控制下的火电厂厂级负荷优化分配[J]. 中国电机工程学报，２００８，２８（１４）：１０３－１０７．
WANG You, MA Xiaoqian, LIU Ao. Study on plant-level optimal load distribution based on automatic generation control[J]. Proceedings of the CSEE, 2008, 28(14): 103-107.
[14] 李学斌. 火电厂厂级负荷分配的多目标优化和决策研究[J]. 中国电机工程学报，２００８，２８（３５）：１０２－１０７．
LI Xuebin. Study of multi-objective optimization and multi- attribute decision making of economic load dispatch problem[J]. Proceedings of the CSEE, 2008, 28(35): 102-107.

[1]	Lei ZHANG, Xiaowei MA, Manliang WANG, Li CHEN, Bingtuan GAO. Distributed Collaborative Control Strategy for Intra-regional AGC Units in Interconnected Power System with Renewable Energy [J]. Electric Power, 2025, 58(3): 8-19.
[2]	Sheng CHEN, Honglue ZHANG, Tian XIA, Xue YANG, Wenjun ZHANG, Wei YAN. Dynamic Optimization Model of AGC Units Considering TCPS Assessment Constraints [J]. Electric Power, 2024, 57(8): 145-151.
[3]	Zhiqiang LIU, Jianfeng LI, Li PAN, Zhixuan WANG. Analysis and Prospect of Transformation and Upgrading Effects of Coal-fired Power Units in China [J]. Electric Power, 2024, 57(7): 1-11.
[4]	Yibin WANG, Feixiong CHEN, Zhenguo SHAO, Shuling ZHANG, Weijun ZHANG, Zhicheng LI. Two-stage Frequency Regulation Method for Energy Storage Coordinated with Thermal Power Unit Based on Weight Coefficient Correction [J]. Electric Power, 2024, 57(3): 83-94.
[5]	Mingyuan WAN, Xin REN, Du WANG, Yafei JIN, Zhigang WANG, Tingju WANG, Changhong YANG, Haokun LIU. Study of Dynamic Characteristics of 100 MW Cascade S-CO₂ Cycle [J]. Electric Power, 2024, 57(12): 169-177.
[6]	Nuo CHENG, Dacai CHEN, Xue CHEN, Xiaofei RUAN, Shuqing WEI, Zheyu HAN. An Optimized Scheme for Active Distribution Network Current Speed Protection Setting Considering Tie Switch Operation [J]. Electric Power, 2024, 57(10): 90-101.
[7]	Zhihui DAI, Meiyuan LIU, Shuqing WEI, Weiping ZHU, Wenzhuo WANG. Distance Protection for Outgoing Line of Photovoltaic Station Based on Superconducting Magnetic Energy Storage [J]. Electric Power, 2024, 57(10): 102-114.
[8]	Baocheng FENG, Zhen JIN, Wei HOU, Guangfu XU. Research and Application of Control Strategy Optimization for Regional Standby Automatic Switching System of Petal-Type Distribution Network [J]. Electric Power, 2024, 57(1): 244-254.
[9]	SHI Wenzhe, LI Bingjie, YOU Peipei, ZHANG Ling. Optimization Strategy of Building Energy System Based on Deep Reinforcement Learning [J]. Electric Power, 2023, 56(6): 114-122.
[10]	CHEN Quan, ZONG Xuanjun, LI Mengyuan. Multi-objective Cooperative Optimization of Multi-heterogeneous Energy System Considering Energy Conservation [J]. Electric Power, 2023, 56(6): 148-157.
[11]	ZHOU Wenjun, CAO Yi, LI Jie, JIN Tao, CHEN Wenjian, ZHOU Xia. Reactive Voltage Emergency Control Strategy of Wind-Thermal-Bundled DC Transmission System Considering Wind Farm Regulation Margin [J]. Electric Power, 2023, 56(4): 77-87.
[12]	LIU Liantao, LIU Fei, JI Ping, LIN Weifang, ZHANG Xiangcheng, TIAN Xu, GAO Fei. Research on Optimal Control Strategy of Energy Storage for Improving New Energy Consumption [J]. Electric Power, 2023, 56(3): 137-143.
[13]	HE Yanqiang, WANG Ying, CHEN Xiaoqiang, CHEN Jianxiao. Energy Storage Control Strategy of Railway Network Side Considering Characteristic Harmonic Control [J]. Electric Power, 2022, 55(7): 33-41.
[14]	ZHOU Shijia, YANG Guangyuan, PENG Guangqiang, WU Jiyang, XIN Qingming. Fault-Tolerant Control Strategy Based on Multi-Phase Wind Power System [J]. Electric Power, 2022, 55(7): 134-141.
[15]	LIU Xiwen, PENG Zhuoyin, HU Xinqiang, YE Ze, HE Huixue, CAI Rui, WEI Wenbo. Annual Fuel Cost Minimization Decision Model for Thermal Power Plant and Its Applications [J]. Electric Power, 2022, 55(6): 202-207.