船舶汽轮发电机组的运行环境和调节需求异于陆地电厂。针对机组在负荷扰动后的稳定需求,以陆用汽发机组典型数学模型为基础,建立了考虑汽缸效率变化的船用机组汽阀、锅炉协调控制模型,以转速、主汽压为目标状态量设计了零动态控制律,并通过PSCAD软件仿真验证。结果表明,相较于传统PID控制,所设计的控制律能有效降低状态量与设计值的偏差,有利于机组在负荷扰动后恢复稳定。
In comparison with land power station, shipboard turbo-generator has different operation environment and regulation requirements. Aiming at stabilization requirement of turbine unit after load disturbance, on base of classical model of land turbine unit, coordination control model of shipboard turbine valve and boiler considering cylinder efficiency change is built, and zero dynamic control law targeting unit speed and main pressure is designed. Simulation Result indicates that, comparing with PID control method, deviation with rated values of system variables are effectively reduced under the designed control, which is advantageous to system stabilization after sudden load change.
2020,42(3): 118-122 收稿日期:2019-03-19
DOI:10.3404/j.issn.1672-7649.2020.03.024
分类号:TM76
基金项目:国家自然科学基金资助项目(51877212)
作者简介:朱永欣(1992-),男,博士研究生,主要研究方向为舰船电力系统建模与自动控制。
参考文献:
[1] MELLO F P DE, ANDERSON P, DOUDNA J, et al. Dynamic models for fossil fueled steam units in power system studies[J]. IEEE Transactions on Power Systems, 1991, 6(2):753-761.
[2] 宋新立, 王成山, 刘涛, 等. 电力系统全过程动态仿真中的机炉协调控制系统模型研究[J]. 中国电机工程学报, 2013, 33(25):167-172
SONG Xin-li, WANG Cheng-shan, LIU Tao, et al. Modeling of boiler-turbine coordinated control system in coal-fired power plants for power system unified dynamic simulation of transient, medium-term and long-term stabilities[J]. Proceedings of the CSEE, 2013, 33(25):167-172.
[3] 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 Xin-li, LIU Zhao-xu, LI Yong-zhuang, 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.
[4] 刘晓燕, 王文中, 欧阳杰, 等. 大型汽轮机中压调节阀参调供热研究[J]. 华电技术, 2018, 40(3):9-12
LIU Xiao-yan, WANG Wen-zhong, OUYANG Jie, et al. Study on IP control valve of large-scale steam turbine engaged in heat supply regulation[J]. Huadian Technology, 2018, 40(3):9-12.
[5] 李啸骢, 程时杰, 韦化, 等. 具有多性能指标的汽轮发电机非线性综合控制[J]. 中国电机工程学报, 2003, 23(4):96-101
LI Xiao-cong, CHENG Shi-jie, WEI Hua, et al. Multi-index nonlinear integrated control for turbine generator unit[J]. Proceedings of the CSEE, 2003, 23(4):96-101.
[6] 李啸骢, 程时杰, 韦化, 等. 中间再热式汽轮发电机组的多指标非线性综合控制器的研究[J]. 电网技术, 2004, 28(7):1-6, 18
LI Xiao-cong, CHENG Shi-jie, WEI Hua, et al. Study on multi-index nonlinear integrated controller for reheat-type turbo-generator unit[J]. Power System Technology, 2004, 28(7):1-6, 18.
[7] 陈明媛, 李啸骢, 从兰美, 等. 中间再热式汽轮发电机组的多指标非线性鲁棒综合控制[J]. 电力自动化设备, 2017, 37(10):139-145
CHEN Ming-yuan, LI Xiao-cong, CONG Lan-mei, et al. Multi-index nonlinear robust control for reheat-type turbo-generator[J]. Electric Power Automation Equipment, 2017, 37(10):139-145.
[8] 蒋铁铮, 陈陈, 艾芊. 汽轮发电机汽门开度的分散非线性预测控制[J]. 中国电机工程学报, 2006, 26(20):22-26
JIANG Tie-zheng, CHEN Chen, AI Qian. Study of decentralized nonlinear predictive control for steam valve of turbine-generator[J]. Proceedings of the CSEE, 2006, 26(20):22-26.
[9] 蒋铁铮, 陈陈, 艾芊. 汽轮发电机主汽门开度的非线性最优预测控制[J]. 控制理论与应用, 2006, 23(3):458-462
JIANG Tie-zheng, CHEN Chen, AI Qian. Nonlinear optimal predictive controller for main steam valve of turbine generator[J]. Control Theory & Application, 2006, 23(3):458-462.
[10] 钟敏. 面向单元机组的炉机网协调控制[D]. 哈尔滨:哈尔滨工业大学, 2016:27-29.
ZHONG Min, Boiler-turbine-grid coordinated control applied to unit plant[D]. Harbin Institute of Technology, 2016.
[11] 余又红, 刘永葆, 孙丰瑞. 基于热经济学的舰船发电机组配置优化[J]. 海军工程大学学报, 2009, 21(4):92-97
YU You-hong, LIU Yong-bao, SUN Feng-rui. Configuration optimization of marine generating units based on thermo-economics[J]. Journal of Naval University of Engineering, 2009, 21(4):92-97.
[12] 邓拓宇, 田亮, 刘吉臻. 供热机组锅炉储能与热网储能空间时间多尺度分析[J]. 中国电机工程学报, 2017, 37(2):599-605
DENG Tuoyu, TIAN Liang, LIU Jizhen. Spatial and temporal multiscale analysis on energy storage in heat supply units'boiler and heat supply nets[J]. Proceedings of the CSEE, 2017, 37(2):599-605.
[13] 刘鑫屏, 田亮, 王琪. 供热机组发电负荷-机前压力-抽气压力简化非线性动态模型[J]. 动力工程学报, 2014, 34(2):115-121
LIU Xinping, TIAN Liang, WANG Qi. Simplified nonlinear dynamic model of generating load-throttle pressure-extraction pressure for heating units[J]. Journal of Chinese Society of Power Engineering, 2014, 34(2):115-121.
[14] 卢强, 梅生伟, 孙元章. 电力系统非线性控制(第2版)[M]. 北京, 清华大学出版社, 2008:309-311.