CAJ | 학술논문

单元机组中的锅炉-汽轮机协调系统，具有滞后、耦合、时变以及模型不确定性等特点。针对该协调过程，设计了一种预测控制策略，它利用预测模型与滚动优化策略，减小了模型不确定性、时变以及滞后等因素的影响。最后通过300 MW单元机组协调控制系统的仿真实验，验证了所设计控制算法的性能。结果表明在机组工况发生变化或受到干扰时，被控系统具有快速的负荷适应性、良好的抗扰动能力和很强的鲁棒性，是一种具有实用价值的单元机组协调控制方法。
단원궤조중적과로-기륜궤협조계통，구유체후、우합、시변이급모형불학정성등특점。침대해협조과정，설계료일충예측공제책략，타이용예측모형여곤동우화책략，감소료모형불학정성、시변이급체후등인소적영향。최후통과300 MW단원궤조협조공제계통적방진실험，험증료소설계공제산법적성능。결과표명재궤조공황발생변화혹수도간우시，피공계통구유쾌속적부하괄응성、량호적항우동능력화흔강적로봉성，시일충구유실용개치적단원궤조협조공제방법。
Power unit boiler-turbine coordination system has some characteristics, such as delay, coupling, time-varying and model uncertainty. This paper designs a model predictive control strategy for the coordination process. It uses predictive model and the receding horizon optimal principle to reduce the effects of model uncertainty, time-varying and delay. Finally 300 MW power unit coordinated control system simulation experiment results show that the control system has fast load adaptability, disturbance rejection capability and robustness with the power unit condition changing and disturbance. The designed algorithm is a practical power unit coordination control method.