With the continuous promotion of the construction of new power systems

the proportion of new energy installations is increasing

the demand for ramping capability is growing

and the importance of flexible ramping capability for maintaining the stable operation of power systems is gradually becoming apparent. At present

there is still much room for improvement in theoretical research and market construction of ramping auxiliary service market in China

while the United States has more mature experience in the construction of ramping auxiliary service market. It is necessary to study and analyze the determination of ramping demand price curve

which is regarded as a key and complicated part of the climbing market construction and operation. Firstly

the basic concepts related to the demand price curve of the U.S. ramping auxiliary service market are introduced. Based on this

the methods of determining the demand price curves of the ramping auxiliary service market in California and Midwest power markets are analyzed in detail

and their differences are compared and analyzed. Finally

taking into account the market construction situation and demand in China

feasible suggestions for constructing the ramping auxiliary service market are proposed in terms of market construction

demand calculation and demand price curve setting.