Design and Practice of Power Reserve Ancillary Service Market Mechanism of Shanxi in China
The electricity reserve ancillary service market is an important mechanism to reflect the value of reserve service,guide traditional thermal power and new entities to actively provide reserve service,and support the construction of the new power system.Based on the formal operation of the electricity spot market and the frequency regulation ancillary service market in Shanxi,in response to the problem of insufficient flexible regulation resources for the power grid with a high proportion of renewable energy,Shanxi proposes a transaction mechanism of the positive reserve ancillary service market coordinated with the power energy.Regarding market mechanism design,Shanxi adopts the semi-coupled clearing coordination mode that uses the total cost of the electricity spot market and the positive reserve market as the lowest target to determine the unit commitment,then clears the reserve and electricity energy markets in turn.It provides compensation for surplus generation capacity to suppliers of reserve service and the compensation for winning capacity,to fully reflect the dual value of reserve service to ensure power supply and promote renewable energy consumption.The case analysis and the results of test operation of the Shanxi reserve market show that the construction of the reserve service market is conducive to discovering reserve regulation value and optimizing the allocation of system regulation resources,and relevant achievements can provide a reference for the construction of the domestic reserve market.
reserve marketelectricity marketcoupling mechanism of energy and reserve serviceancillary serviceoperation practice