控制同步发电机阶跃大扰动过程的目标引导法

THE TARGET GUIDING METHOD DURING STEP LARGE DISTURBANCE PROCESS FOR SYNCHRONOUS GENERATOR

针对工程中常要处理的因操作或运行工况突变而引起的过渡到新运行点的阶跃扰动过程控制 ,分析了发电机励磁调节的主要机理 ,提出了以机端电压偏差的 1-范数为最小的阶跃大扰动过程的目标引导控制法。大中型机组的工业试验结果表明 ,该文方法的理论与实践吻合好 ,是现代智能筛策略控制的一种工业具体实现 ,对抑制发电机因甩负荷引起的过电压达到接近理论极限的效果。

Aiming at the requirements for process control of transiting to a new operation point, which is caused by operating or being suddenly changed operation mode and has to be handled in engineering, this paper analyses the main mechanism which affecting generator voltage, and presents a target guiding control method with generator voltage deviation 1 norm will be minimized for symmetric step large disturbance process. The method is clearer in physic concept, and is an industrial concrete implementation of the modern intelligence screen and tactics control. The industrial test result for a large generator shows that the theory in the paper is well identical with practice, and approaches the theoretical limit for restraining generator over voltage during throwing off load.