Automatic control method for high solution of large thermal power generating unit

The invention discloses an automatic control method for high solution of a large thermal power generating unit. The automatic control method comprises high solution automatic control trigger logic, ahigh solution coordination control policy, a high solution boiler water level control policy, a high solution main vapor temperature control policy, a high solution reheating vapor temperature controlpolicy, a high solution deaerator water level control policy and high solution return logic. The automatic control method solves the problem that the unit cannot be automatically, safely and stably transited to a stable operation state after high solution, reduces the labor intensity of operators, and guarantees long-time safe and stable operation of the unit. 本发明公开了大型火力发电机组高加解列的自动控制方法，包括高加解列自动控制触发逻辑、高加解列协调控制策略、高加解列汽包水位控制策略、高加解列主汽温度控制策略、高加解列再热汽温控制策略、高加解列除氧器水位控制策略和高加解列复位逻辑。本发明解决了高加解列后机组不能自动安全平稳地过渡到稳定运行状态的问题，降低运行人员的劳动强度，保证机组长期安全稳定运行。