A source-grid-load-storage flexible coordination control and operation optimization method

Abstract

A source-grid-load-storage flexible coordinated control and operation optimization method, including the following steps: establishing a transmission network-distribution network-equipment local three-layer flexible coordinated centralized control architecture and a distribution system multi-layer flexible coordinated distributed control architecture; The "source-network-load-storage" comprehensive coordination and interaction mechanism of the power system; the operation modeling of the distribution network source, network, load, and storage equipment, and the use of data-driven distributed robust methods And the uncertain characteristics of the load are characterized, and then the "source-network-load-storage" flexible coordinated centralized optimization operation model and partition distributed optimization operation model are constructed, and the CCG algorithm and ADMM algorithm are used for effective solution respectively. Through the invention, the flexible, coordinated and optimized operation of the new generation power distribution system can be realized.

Description

technical field [0001] The invention belongs to the field of flexible coordinated operation of distribution networks, and in particular relates to a "source-network-load-storage" flexible coordinated control and operation optimization method considering the morphological characteristics of a new generation of power distribution systems. Background technique [0002] The new generation of power distribution system presents the characteristics of two-way power flow and two-way uncertainty, and has changed from a single power distribution role to an advanced power distribution system that interacts with large power grids and users in two directions. At the same time, in order to increase the consumption of clean energy and adapt to the disorderly charging and discharging of electric vehicles, the new generation of power distribution system has AC-DC hybrid distribution network, new power electronic equipment, micro-grid, distributed energy storage technology, multi-energy comple...

AI Technical Summary

Problems solved by technology

However, the new-generation power distribution system faces three challenges: 1) Insufficient consumption of clean energy: the two-way flow of the power flow brings uncertainty at both ends of the source network, and the frequency adjustment capability of intermittent distributed generation is weak, while increasing Increased the difficulty of distribution network voltage level control; 2) Difficulty in operation regulation: the power distribution system is currently less inclusive and open to ubiquitous distributed flexible resources, and does not make full use of the differential adjustment characteristics of flexible resources at each end , its complex interaction mechanism makes it more difficult to regulate the operation of the power grid; 3) Lack of interaction with the large power grid: the traditional independent dispatching mode of transmission and distribution makes the utilization rate of flexible resources low, which makes it difficult for both the transmission network and the distribution network to fully absorb renewable clean energy

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