Distribution network black start auxiliary service pricing method considering DG power generation volatility

Abstract

The invention discloses a distribution network black start auxiliary service pricing method considering DG power generation volatility. predicting the generating capacity of each distributed power supply in an area during 24 days of a day, and obtaining the total generating capacity of an area power supply under each period after taking a power supply cluster in the area as the area power supply through the minimum path; establishing a load recovery sequence optimization model, and solving the recovery sequence of each load under each period; taking the expectation maximization of the total compensation cost of black start auxiliary service finally obtained by a power generation side as a target, establishing a black start auxiliary service signing time optimization model, and making the best black start service scheme between the power generation side and a user; performing sharing on capacity compensation cost according to the black start capacity on the same day of each distributedpower supply in the area after calculating the black start auxiliary service total compensation cost obtained by the power generation side on the same day; and performing sharing on using compensationcost according to the current output level of each distributed power supply when black start is performed according to reality. The method can guarantee the fairness of the compensation for the costsof black start auxiliary service provided by each distributed power supply.

Description

technical field [0001] The invention relates to the field of black start of electric power system, in particular to a pricing method for black start auxiliary service of distribution network considering the fluctuation of DG power generation. Background technique [0002] With the in-depth research and practice of the power market, more and more people pay more and more attention to the safe operation of the power system by the auxiliary services of the power system. When the power distribution system is running, the most serious failure is the complete power outage of the entire system. Once the system is completely powered off, the most critical thing is how to quickly restore the system and supply power to users. The black start of the power system refers to: after the entire system is out of service, without relying on the help of other networks, the units with self-starting capabilities in the system are started to drive the units without self-starting capabilities, an...

AI Technical Summary

Problems solved by technology

But so far, there has been little research on the pricing of black-start ancillary services

In the distribution network, due to the existence of intermittent power sources, the existing fixed pricing method is not suitable for the black start auxiliary service pricing of the distributed power distribution network. Considering the fluctuation of distributed power generation in the distribution network , how to formulate a set of reasonable pricing schemes for black-start ancillary services including distributed power distribution network is of practical research significance

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