船舶蒸汽动力装置中设置的倒车汽轮机，一般情况下只在船舶倒车工况时工作。为了克服船舶换向过程中锅炉超压的问题，应充分利用倒车汽轮机和回汽控制技术。本文以大型船舶蒸汽动力装置为研究对象，通过机理分析建立其数学模型，提出一种具有回汽控制的机炉协调控制方案，并对换向过程进行动态仿真。仿真结果表明使用回汽控制的机炉协调控制方式的主蒸汽压力偏差相对于不使用回汽控制的协调控制方式减小了1%，主蒸汽压力更稳定。可以得到结论，使用具有回汽控制的机炉协调控制方式可以解决换向过程中锅炉超压的问题。
The astern turbine which exists in marine steam power plant is usually only used in astern condition. In order to prevent the boiler pressure from being overpressure in direction reversing process, it is essential to fully utilize back-steam control. In this paper, we build up mathematical model of steam power plant and propose a boiler-turbine coordinated control system with back-steam control. The simulation results of direction reversing process shows that compared with coordinated control system without back-steam control, the maximum main pressure deviation of boiler-turbine coordinated control system with back-steam technology is 1% less than that of coordinated control system without back-steam technology. The boiler-turbine coordinated control system with back-steam control can provide greater stability of main steam pressure in direction reversing process. It can solve the problem of overpressure in direction reversing process.
2017,39(2): 108-113 收稿日期：2016-07-12
DOI：10.3404/j.issn.1672-7619.2017.02.022
分类号：TK223;TP273
作者简介：刘刚(1979-),男,高级工程师,主要研究方向为电力系统及动力系统设计。
参考文献：
[1] 吕建伟, 易慧, 刘中华. 船舶设计方案评估指标体系研究[J]. 船舶工程, 2005, 27(4):53-57.LV Jian-wei, YI Hui, LIU Zhong-hua. Research on index system for evaluating warship Design[J]. Ship Engineering, 2005, 27(4):53-57.
[2] 朱泳, 金家善, 刘东东. 舰用蒸汽动力装置回汽刹车与回汽保护技术研究[J]. 汽轮机技术, 2012, 54(6):404-407.
[3] 刘云生, 冯永明, 陈华清, 等. 增压锅炉与涡轮增压机组匹配特性仿真分析[J]. 舰船科学技术,2012,4(1):50-54.
[4] BELL. R. D, STRIM. K. J, A fourth order non-linear model for drum-boiler dynamics[C]//GERTLER. J. J, CRUZ JR. J. B, PESHKIN. M. Power Plants and Systems, Computer Control. Proceedings of the 13th World Congress, IFAC, San Francisco, USA, Volume O. 1996:31-36.
[5] KECMAN. V. Nonlinearity of dynamic processes in a drum boiler circulation loop[C]//C. Maffezzoni ed. IFAC Modeling and Control of Electric Power Plants. Como, Italy. 1983:21-27.
[6] 张文杰, 戚飞虎, 邹文进, 等. 汽轮机建模和仿真研究的一种新方法[J]. 计算机工程, 2001, 27(9):175-177.ZHANG Wen-jie, QI Fei-hu, ZHOU Wen-jin, et al. A new method for turbine modularization and simulation research[J]. Computer Engineering, 2001, 27(9):175-177.
[7] 李东亮, 耿江华, 程刚, 等. 船舶主汽轮机模块化建模方法及实验研究[J]. 舰船科学技术, 2015, 37(12):79-82.LI Dong-liang, GENG Jiang-hua, CHENG Gang, et al. Modeling method and simulation experiments of main steam turbine of ship[J]. Ship Science and Technology, 2015, 37(12):79-82.
[8] 于广. 船舶锅炉蒸汽动力装置多目标控制问题的研究[D]. 哈尔滨:哈尔滨工业大学, 2009:9.
[9] 张倩. 船用动力装置机炉协调控制系统优化设计[D]. 哈尔滨:哈尔滨工程大学, 2009:17.
[10] 范轶, 沈毅, 徐志强, 于达仁. 船舶蒸汽动力装置调节/保护多目标切换控制问题研究[J]. 汽轮机技术, 2011, 53(03):161-163.FAN Yi, SHEN Yi, XU Zhi-qiang, YU Da-ren. Multi-objective regulation and protection switching control for marine steam power system[J]. Turbine Technology, 2011, 53(03):161-163.
