A control method and control device for supply and demand balance in power grid layered and partitioned

Abstract

The invention provides a method and device for regulating and controlling the supply and demand balance of power grid layers and partitions. The method includes determining the power shortage and the load operation state; calculating the potential load reduction of demand side resources according to the load power model and the load operation state; Estimated cuttable load potential, assign reduction tasks layer by layer; adjust the corresponding load operating parameters according to the assigned reduction tasks; verify the actual reduction effect of the power grid; the device includes: data acquisition unit, dispatching unit, strategy formulation unit, verification units and integrators. The technical solution provided by the invention implements a comprehensive control strategy from micro to macro according to the load control requirements of different levels and regions, ensuring the effectiveness and rationality of demand-side resources participating in the balance adjustment of power grid supply and demand.

Description

technical field [0001] The invention relates to the application technical field of supply and demand balance control, in particular to a method and a control device for supply and demand balance control in hierarchical and partitioned power grids. Background technique [0002] Electricity is a special form of energy with real-time supply and demand balance characteristics. If the power imbalance between the power generation side and the power consumption side will lead to system frequency instability, it will not only seriously affect power indicators such as voltage and current, but even cause the grid system to collapse. In order to reduce the loss caused by the unbalanced supply and demand of the power system, the power balance is usually adjusted based on the output of the generator set to match the demand on the power consumption side. Frequent changes of equipment may have a huge impact on equipment life and operating costs. [0003] With the intelligent development o...

AI Technical Summary

Problems solved by technology

At present, electricity demand response, which has been widely studied in existing technologies, is a typical method of demand-side resource management. However, in the traditional demand response mode based on price or incentives, the user response cycle is long, and response plans need to be formulated in advance. Moreover, the subjectivity of users is also greatly affected, so it is more suitable for long-term system planning; and in the grid environment with the rapid development of DC transmission technology and the expansion of power load, timely and effective methods are needed to regulate demand-side resources to meet supply and demand When the balance threatens the security of the system, the rapid and coordinated action of the resources on the demand side

[0004] At present, the realization of the application of demand-side resources in the field of supply-demand balance is still mainly to formulate regulation principles from the perspective of the impact of electricity prices and incentives on users. The hierarchical and regional considerations of user distribution have been considered in

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