600 MW超临界机组深度调峰下控制策略优化

Optimization of Deep Peak Regulation Control Strategy for 600MW Supercritical Unit

光伏、风电等新能源电力的大力发展,给传统电网结构带来很大冲击,同时对传统火电的灵活性造成很大挑战。而机组灵活性的提高应该建立在保证机组参数稳定的基础上。本文针对聊城电厂二期600MW超临界机组在参与深度调峰过程出现的主汽压力温度波动大、自动投入率低等问题展开分析,对原有控制逻辑进行优化,提升了机组的稳定性、灵活性,提高了机组竞争力。

The vigorous development of new energy power such as photovoltaics and wind power has brought a great impact on the traditional grid structure, and at the same time brought great challenges to the flexibility of traditional thermal power. The improvement of flexibility should be based on ensuring the stability of unit parameters. This paper analyzes the problems of large fluctuations in main steam pressure, temperature and other main parameters of 600 MW supercritical units in the peak shaving process of the second phase of Liaocheng Power Plant, and low automatic input rate. The original control logic is optimized and the unit is improved. Its stability and flexibility have improved the competitiveness of the unit.