The power grid may have higher requirements on coordinated control system(CCS) of power unit,thus the measures of enhancement of CCS are stated.These include add load demand signal as feedforward signal to boiler main steam pressure control loop;and balance pressure through changing load demand when larger change of main steam pressure occurs.The implementation of these measures will improve the regulating quality of CCS,enhance the adaptive capability to external load change and eliminate the overshoot of main steam pressure.%电网对电厂机组协调控制系统(CCS)有更高的要求，提出了CCS的改进措施：在锅炉主蒸汽压力控制回路上增加负荷指令的微分前馈信号；主汽压力变化较大时，通过改变负荷指令平衡压力等。这些措施的实施，改善了协调控制系统的调节品质，提高了系统对外界负荷适应能力，抑制了主蒸汽压力的超调。
展开▼
