Research On The Mechanism Of Generation Units Joining In The Ancillary Service

Ancillary services perform essential functions on supporting the power system security and reliability, and maintaining the power quality. In market-based environment, ancillary services are traded as special power commodities. The marketing operation of ancillary services is a promising trend to improve power system reliability less costly.In China, ancillary services are dispatched compulsively without any payment according to the system demand. The major problem resulting from this mechanism is the lack of incentives for generators to provide ancillary services, consequently, it also damps the improvement of the system reliability and power quality. Under this background, the State Electricity Regulatory Commission published"Ancillary Services Tentative Manage Method for Grid-connected Plants"in November 2006. According to the Method, some reasonable compensation would be obtained by the ancillary services providers. The classification and compensation principle of the ancillary services were also defined primitively in the Method. Since then, ancillary services, especially the compensation strategy have been receiving more and more attention in China.In this thesis, with the actual characters of China Southern Power Grid considered, the ancillary services compensation mechanism for China Southern Area is researched. This thesis mainly covers the following topics:Firstly, the ancillary services compensation mechanism for China Southern Area, including the compensation strategies for AGC service, peak load regulation service, spinning reserve service, reactive power service and black-start service, is proposed according to"Ancillary Services Tentative Manage Method for Grid-connected Plants"and the actual situations of China Southern Power Grid. Furthermore, the settlement and regulation mechanism of ancillary services are also established.Secondly, under the background of the leasing mechanism between nuclear generation units and the pumped-storage power station in Guangdong Power Grid, the relationship between ancillary services compensation mechanism and pumped-storage leasing mechanism is analyzed, and then, the scheme for nuclear generation units participating ancillary services compensation mechanism is proposed.Lastly, the rationality and feasibility of the ancillary services compensation mechanism are verified by its performance in Guangdong Power Grid.