Optimized scheduling method for provincial power system and related device

By building a provincial power system scheduling model of microgrid-provincial scheduling two-way interactive system and multi-self-balancing unit, the problem of the lack of source, grid, load and storage collaborative control of provincial power grids under high proportion new energy conditions is solved, and the efficient utilization of flexible resources of microgrids and the stability of the power system is achieved.

CN119726701APending Publication Date: 2025-03-28ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID JIBEI ELECTRIC POWER CO LTD +2
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Patent Information

Application Number
CN202411916757.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The lack of coordinated control of source grid load storage between the upper layer and the microgrid under the conditions of high proportion of new energy, resulting in challenges in the real-time dynamic balance of supply and demand of the power grid.

Method used

Build a microgrid-provincial scheduling bidirectional interactive system, including a load scheduling layer, a load aggregation layer and a load distribution layer. Combined with the provincial power system scheduling model of multiple self-balancing units, determine the scheduling constraints, and use the lowest operating cost as the optimization goal, solve the optimization model to obtain the optimization scheduling results.

Benefits of technology

It has realized the efficient utilization of flexible resources of microgrids by provincial multi-level scheduling systems, enhanced the flexibility and stability of the power system, improved the utilization efficiency of microgrid resources, and laid the foundation for the development of smart grids.

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Abstract

The invention belongs to an optimal scheduling method, provides an optimal scheduling method for a provincial power system and a related device, and aims to solve the technical problem that source network load storage cooperative control of an upper layer and a micro-grid is lacked during multi-level cooperative scheduling of a provincial power grid at present, and constructs a micro-grid-provincial scheduling two-way interaction system as an optimization model, the microgrid-provincial scheduling bidirectional interaction system comprises a load scheduling layer, a load aggregation layer and a load distribution layer which are arranged in sequence and are in interactive connection, then a provincial power system scheduling model comprising multiple self-balancing units is constructed, and scheduling constraint conditions are determined; and finally, solving the optimization model by taking the lowest operation cost of the main bodies corresponding to all the self-balancing units as an optimization target and combining constraint conditions to obtain an optimization scheduling result, and carrying out optimization scheduling on the provincial power system.
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