AC/DC power distribution network cooperative scheduling method and system involving joint participation of MG, LA and DNO

Abstract

The invention discloses an AC / DC power distribution network cooperative scheduling method and system involving the joint participation of an MG, an LA and a DNO, and belongs to the field of power distribution network optimal scheduling. According to an established AC / DC power distribution network dynamic game mechanism, the pricing right of the distribution network operator (DNO) is reduced, meanwhile, the dispatching right of the DNO to a power distribution network is maintained, and safe operation of the power distribution network can be guaranteed while economic benefits of other benefit subjects of the power distribution network are considered. The dynamic game mechanism enables enthusiasm of the other benefit subjects except the DNO to participate in scheduling to be improved, the absorption rate of the power distribution network for distributed renewable energy sources is higher, the situation of supplying power to a main network is reduced, and the total social benefit of the power distribution network is improved. Under the dynamic game mechanism, all participants have bargaining rights of electricity prices related to the participants themselves, the correlation between the income of each participant and the amount of resources mastered by the corresponding participant is stronger, and the market fairness is improved.

Description

technical field [0001] The invention belongs to the field of distribution network optimization dispatching, and more specifically relates to a method and system for coordinating dispatching of an AC / DC distribution network in which MG, LA and DNO jointly participate. Background technique [0002] Compared with the traditional AC distribution network, the AC-DC distribution network has the following advantages: the control of the power flow can be realized through power electronic devices; there is no phase and frequency synchronization problem in the DC area, and the power quality is higher; distributed power access It is more flexible, and because the rectification and inverter processes are omitted, the installation cost of the converter can be saved and energy loss can be reduced. At the same time, with the maturity of power electronics technology, the above advantages will become more prominent, and the AC and DC distribution network will receive more and more attention....

AI Technical Summary

Problems solved by technology

[0007] Aiming at the defects and improvement needs of the prior art, the present invention provides a method and system for coordinated dispatching of AC / DC distribution network in which MG, LA and DNO participate together, and its purpose is to solve the problem that after LA, MG and DNO participate in the power market, because each market The interests of the participants are inconsistent or even conflict with each other, resulting in the problem that the traditional single-stakeholder scheduling method cannot be applied to the new distribution network power market

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