Novel transmission and distribution coordinated power distribution system scheduling control method and device

Abstract

The invention discloses a novel transmission and distribution coordinated power distribution system scheduling control method and device. On the basis of a unified model established by a power transmission network and a power distribution network and with consideration of high-proportion renewable energy and electric vehicle access, advanced applications in the power transmission network and the power distribution network are respectively and independently by applying multi-energy complementary and microgrid and energy storage technology, mutual interactive iteration is carried out on the calculation results, and then multi-source data fusion and the information sharing are set according to different production management system modes adopted in the power transmission and distribution network. On the basis of the above control method, through prediction and evaluation of a power distribution network load curve, an obtained result is used for calculating a power transmission network state. Partitioning of a network to be dispatched and controlled is carried out according to the network connection characteristics and the electrical relationship between the power transmission networkand the power distribution network; and then, a multi-source information fusion and power distribution network control coordination optimization control strategy is adopted to realize flexible and interactive accurate control of source-network-load-storage, so that the distributed energy acceptance capability and the comprehensive energy utilization efficiency are improved.

Description

technical field [0001] The invention relates to a power distribution system, in particular to a novel control method and device for dispatching a power distribution system with coordinated transmission and distribution. Background technique [0002] At present, the traditional distribution network is facing huge challenges in terms of reliability, network loss, economical applicability, and efficient transmission. The distribution network is not strong in resource optimization, scheduling and allocation. On the one hand, the expansion of the city scale and the increase in the demand of residents and enterprises make the power supply radius of the distribution network continue to expand, which leads to the failure of voltage stability and the increase of line loss, and the island operation of some regional automation systems in the power grid , information is difficult to share in a timely manner; on the other hand, the development of various emerging power grid technologies,...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional distribution network is facing huge challenges in terms of reliability, network loss, economical applicability and efficient transmission, and the distribution network is not strong in resource optimization, scheduling and allocation.

On the one hand, the expansion of the city scale and the increase in the demand of residents and enterprises make the power supply radius of the distribution network continue to expand, which leads to the failure of voltage stability and the increase of line loss, and the island operation of some regional automation systems in the power grid , information is difficult to share in a timely manner; on the other hand, the development of various emerging power grid technologies, represented by distributed energy generation, and the increasingly tense supply line corridors have brought many new changes to the operation of the distribution network. In addition, in the transmission and distribution network system, it is necessary to realize the coordinated optimization of the dispatching of the source, network, load and storage, and the dispatching data cannot obtain the detailed data of the load nodes. Difficulty in sharing and coordinating scheduling

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