Method for correcting and determining minimum active power of new energy station participating in direct electricity purchase of large users

Abstract

The invention provides a method for correcting and determining the minimum active power of a new energy station participating in direct electricity purchase of large users. The correcting and determining method comprises the steps that A cross-section data related to participating in direct electricity purchase of large users are acquired; B the required generating capacity on the day of the new energy station is calculated according to the direct electricity purchase contract power of large user and the new energy station, and the active power of the new energy station at each time of the dayis calculated according to the required generating capacity on the day, and equally divided according to time; C the power prediction value of the new energy station at each time of the day is acquired, and the active power of the new energy station at each time is adjusted according to the power prediction value to acquire the final minimum active power of the new energy station; and D steps B and C are repeated until the completion of the generating capacity of the direct electricity purchase contract between large users and the new energy station. The completion rate of new energy stationtrade contracts participating in direct electricity purchase of large users is improved, and at the same time the task of cross-section regulation of a dispatcher is reduced.

Description

technical field [0001] The invention relates to the field of power system scheduling operation and control, in particular to a method for determining the minimum active power correction of new energy stations participating in direct purchase of electricity by large users. Background technique [0002] With the rapid development of new energy technology and the continuous improvement of new energy grid-connected penetration rate, the power grid structure can no longer meet the needs of new energy grid-connected, and some areas rich in new energy have shown that the transmission channel is blocked. When the power generation of a power plant is limited, the dispatching department generally controls it according to the principle that new energy is given priority over traditional energy, and power plants of the same type generate power in equal proportion to installed capacity. [0003] In a market-oriented environment, in order to improve their own competitiveness, some new ener...

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Problems solved by technology

[0004] ①Scheduler control is complex

Dispatchers need to complete the distribution of power generation rights in real time based on information such as new energy station installed capacity, load forecasting, and direct purchase transaction contracts, which is extremely inconvenient for power field output control;

[0005] ② It is difficult to guarantee the completion rate of the direct purchase transaction contract

Scheduling generally cannot grasp the power generation of each new energy station in real time, and it is easy to cause the contract completion rate of the new energy station participating in the direct purchase of electricity by large users to deviate greatly from the plan, resulting in the inability to complete the monthly contract transaction electricity;

[0006] ③ It is difficult to guarantee the fairness of the distribution of power generation rights

Since there is no strict and unified distribution standard for power generation rights, it is difficult to guarantee the "three public" scheduling principles

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