Source-network-load-storage flexible coordination control and operation optimization method

Abstract

The invention discloses a source-network-load-storage flexible coordination control and operation optimization method. The method comprises the following steps: establishing a local three-layer flexible coordination centralized control architecture consisting of a power transmission network, a power distribution network and equipment and a multi-layer flexible coordination distributed control architecture of a power distribution system; exploring a source-network-load-storage comprehensive coordination interaction mechanism of the power distribution system; conducting operation modeling on source, network, load and storage end devices of the power distribution network, characterizing uncertain characteristics of uncontrollable distributed power generation and load by using a distribution robust method based on data driving, and then constructing a source-network-load-storage flexible coordination centralized optimization operation model and a sectional distributed optimization operation model; and carrying out effective solving by using a CCG algorithm and an ADMM algorithm respectively. According to the invention, flexible coordinated and optimized operation of a new generation ofa 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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