An Asking Strategy of Pumped Storage Power Plant
In generation market,both the ancillary services required by the electric grid system and the electricity can be supplied by a pumped storage plant.Studies on its generation cost are useful for aiding the price bidding.The cost for purchasing electricity is a part of the whole cost.Optimization of the asking strategy can reduce the cost.With all generation plant virtually regarded as an equivalent one,the method of least squares is used for parameter estimation.Furthermore,the optimization problem of multi-block electricity purchase is formulated and solved by langrarge relaxation.With a simulation example,the method is tested efficient.