Trans-regional standby configuration method and device for power system

Abstract

The invention discloses a trans-regional standby configuration method and device for a power system. The method comprises the steps of: taking the minimum total risk cost of the power system in the target scene as a target, and considering cross-region standby power support, evaluating the risk cost of providing unit effective standby power consumption for different levels of standby in each region in the target scene based on a control cost performance ratio index, selecting standby from each region standby set, and forming a standby sequence with optimal economy so as to deal with the powershortage problem occurring in the target scene. Based on the concept of risks, the cost performance ratio indexes of each standby are calculated, and the engineering practicability is improved.

Description

technical field [0001] The invention belongs to the technical field of power system backup, and in particular relates to a cross-area backup configuration method and device for a power system. Background technique [0002] With the continuous depletion of fossil energy and continuous breakthroughs in new energy technologies, vigorously developing new energy sources including wind power and photovoltaics has become the core content of many countries' promotion of energy transformation. The intermittent nature of new energy output makes it difficult to quickly improve its prediction accuracy. Compared with the stable and planable power generation output of traditional energy sources, the risk of organizing power production according to forecast results will exist for a long time. [0003] In the initial stage of new energy development, the installed capacity of new energy is small. If the system reserve capacity is determined according to the traditional deterministic method,...

AI Technical Summary

Problems solved by technology

However, with the continuous expansion of the scale of development and utilization of new energy in my country, my country's new energy presents the characteristics of centralized development and outbound delivery, and its net load (power load minus new energy power generation) is more volatile than traditional power systems. In addition, the anti-peaking characteristics of new energy sources further increase the demand for backup capacity in the power system

Especially when a low-probability high-risk event occurs, the system may experience a long-term, large-scale capacity shortage, and a shortage of spare resources in a single area may seriously threaten the safe and stable operation of the system.

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