On Multilevel Purchasing-electricity Model for Electricity Grid Company in Region Electricity Market
TAN Zhong-fu 1, ZHANG Li-hui 1, LI Xiao-jun 1, DAI Jun-liang 2(1.Institute of Electricity Economics,North China Electric Power University,Beijing 102206,China;2.State Electricity Regulation Committee,Beijing 100085,China)
The electricity grid company is in charge of power trade in the region electricity market. To hedge risks, electricity Grid Company and power plants may sign long-term power trade contracts, mid-term power trade contracts, short-term power trade contracts. The remainder power demand balance problem can be resolved through real-time adjustment in super short-term power market. This paper discusses the multilevel purchasing-power models in long-term, mid-term, short-term, super short-term power market, and analyses the relationship among different level models.