Study on Online Dispatching Defensive Strategy for Power Grid Considering Expected Circuit Breaker Fault Set

Deng, Xiangli; Wang, Wei; Liao, Yuelin; Zhang, Qianbo; Liu, Shiming; Wang, Chuanqi

doi:10.1016/j.epsr.2021.107640

Cited by 4 publications

(2 citation statements)

References 15 publications

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“…In emergency dispatch, most of the dispatch is for material dispatch [26,27]. In the future grid, there are abundant resources allocated to each link, and in most cases, the system is faced with the problem of coordinating the allocation of resources.…”

Section: Objective Functionmentioning

confidence: 99%

“…To avoid grid downtime, dispatchers are required to provide an emergency dispatch response. Thus, emergency dispatch, which allows for the rational allocation of resources in the event of various emergencies, is of great concern [24][25][26][27]. Based on the application of the consensus algorithm in a power system, the proposed algorithm can perform the adaptive regulation of communication interaction when the output of power units is limited, the load demand suddenly increases, and other emergencies occur.…”

Section: Introductionmentioning

confidence: 99%

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Emergency Dispatch Approach for Power Systems with Hybrid Energy Considering Thermal Power Unit Ramping

Zhou

Zang

et al. 2023

Energies

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Future power systems will face more extreme operating condition scenarios, and system emergency dispatch will face more severe challenges. The use of distributed control is a well-designed way to handle this. It enables multi-energy complementation by means of autonomous communication, which greatly improves the flexibility of the grid. First, in the context of global energy conservation and emission reduction, this paper adopts the energy usage method of “renewable energy is the main source of energy, supplemented by thermal power and energy storage” to reduce the system abandoned wind (light) rate while supplementing the energy storage capacity. Second, a consensus algorithm is added to the system while considering the coordination between thermal units and energy storage. An “interface” for autonomous communication between thermal units and energy storage is created using the incremental cost of each agent. To address the recurring issue of power imbalance during emergency dispatch of the system, the consensus algorithm is enhanced so that the communication interval varies with the unit rate. This is based on the climbing characteristics of each thermal power unit. Finally, the effectiveness of the proposed method is verified in an IEEE-30 bus system.

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Section: Objective Functionmentioning

confidence: 99%