Title :
A Model Predictive Control approach to dynamic economic dispatch problem
Author :
Xia, Xiaohua ; Zhang, Jiangfeng ; Elaiw, Ahmed
Author_Institution :
Dept. of Electr. Electron. & Comput. Eng., Univ. of Pretoria, Pretoria, South Africa
Abstract :
There are two ways in literature to formulate the optimal power dispatch problem of generators with ramp rate constraints. One way is the optimal control dynamic dispatch (OCDD) approach based on control theory, the other way is the dynamic economic dispatch (DED) based on optimization theory, and the two formulations are usually believed to be the same. In this paper we show the difference between the two formulations and also propose a Model Predictive Control (MPC) approach to the dynamic dispatch problem by the OCDD framework. This MPC approach provides solutions converging to the optimal solution of an extended version of the DED problem and the MPC algorithm is also robust under certain disturbances and uncertainties.
Keywords :
optimisation; power generation control; power generation dispatch; power generation economics; predictive control; control theory; dynamic economic dispatch problem; model predictive control approach; optimal control dynamic dispatch; optimal power dispatch problem; optimization theory; ramp rate constraints; Economic forecasting; Optimal control; Power generation; Power generation economics; Power system dynamics; Power system modeling; Predictive control; Predictive models; Robust stability; Vehicle dynamics;
Conference_Titel :
PowerTech, 2009 IEEE Bucharest
Conference_Location :
Bucharest
Print_ISBN :
978-1-4244-2234-0
Electronic_ISBN :
978-1-4244-2235-7
DOI :
10.1109/PTC.2009.5282270