According to the time-varying and lag characteristics of the control steam for steam temperature in a boiler, a power grid requires that the generator can quickly respond to load changes, and ensure safety, stability and economic operation. To improve safety and efficiency in the conventional power supply, this paper proposes a coordination and control method with a load-tracking model. It combines advantages of the boiler’s quick responding to the load, and the turbine’s stably following changes in the main steam pressure. In addition, an intelligent time-constant compensation part using the fuzzy PID (proportional-integral-derivative) control algorithm is added. Thus, the intelligent part can work properly when large load changes occur and where the boiler thermal storage is needed. The simulation results show that, compared with the traditional PID control, the fuzzy PID control can derive better dynamic performance parameters and a better control effect.
MA Li-xin, JIANG Ni, YUAN Shu-juan
. Intelligent Coordination and Control of Load Tracking Type Power Generation System[J]. Journal of Shanghai University, 2013
, 19(2)
: 144
-149
.
DOI: 10.3969/j.issn.1007-2861.2013.02.007
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