Title :
Bi-Objective Hydroelectric Optimal Dispatch under Electricity Deregulated Environment
Author :
Chen, Po-hung ; Kuo, Cheng-Chien
Author_Institution :
Dept. of Electr. Eng., St. John´´s & St. Mary´´s Inst. of Technol., Taipei
Abstract :
Hydroelectric units play important roles within the power system security due to their fast response characteristics. Within the present operation strategy of the Taipower, both hydro and thermal units are concurrently dispatched under the Power Dispatch Center in order to raise the system security. However, after the power industry deregulation in Taiwan, many independent power producers (IPPs) join the power market. The operation strategy of IPPs is mainly concerned with electricity pricing competition rather than system security consideration. Therefore, with the increasing of IPPs, the conventional hydro-thermal coordination of Taipower faces a new challenge of increased security risk. This paper proposes a bi-objective hydroelectric optimal dispatch approach to improve system security under electricity deregulated environment. In the work, the bi-objective functions take system security risk minimization as well as thermal costs minimization into account to enhance system security
Keywords :
hydroelectric power stations; power generation dispatch; power generation economics; power markets; power system security; pricing; risk analysis; IPP; Power Dispatch Center; Taipower; biobjective hydroelectric optimal dispatch approach; electricity deregulated environment; electricity pricing competition; independent power producers; power industry deregulation; power market; power system security; system security risk minimization; thermal costs minimization; Character generation; Contracts; Electricity supply industry deregulation; Hydroelectric power generation; ISO; Power generation; Power system security; Spinning; Thermal loading; Water resources; Electricity Deregulation; Hydro-Thermal Coordination; Hydroelectric Dispatch;
Conference_Titel :
Transmission and Distribution Conference and Exhibition: Asia and Pacific, 2005 IEEE/PES
Conference_Location :
Dalian
Print_ISBN :
0-7803-9114-4
DOI :
10.1109/TDC.2005.1546977