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Adaptive load shedding and regional protection

International Journal of Electrical Power and Energy Systems, 2009
The requirement for improved efficiency whilst maintaining system security necessitates the development of improved system analysis approaches and the development of advanced emergency control technologies.
Hassan Bevrani, Gerard Ledwich
exaly   +2 more sources

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Emergency load-shedding algorithm for large industrial plants

Control Engineering Practice, 2002
Abstract Conventional load-shedding strategies are based upon frequency relays that cuts-off predefined load groups at different frequency thresholds. Such a logic performs well in electrical systems distributed on geographical bases, but seems not to fit the specific requirements of industrial systems.
Paolo Pinceti
exaly   +3 more sources

Techno-economic impacts of automatic undervoltage load shedding under emergency [PDF]

Electric Power Systems Research, 2016
© 2015 Elsevier B.V. All rights reserved. Different schemes for voltage control under emergency are adopted in different jurisdictions around the world. While some features, such as Automatic Voltage Regulation (AVR), are common in all countries, for what concerns undervoltage load shedding (UVLS), to contrast voltage instability or collapse, different
Enrico Pons, Abouzar Estebsari, Tao Huang   +2 more
exaly   +3 more sources

Integrated emergency control strategy for single/three-phase hybrid microgrid group coupling load correlation factors and under-frequency load shedding [PDF]

Electric Power Systems Research
Data availability: The data that has been used is confidential.Under-frequency load shedding is a necessary measure for the elimination of power shortages in a single/three-phase hybrid microgrid group under unintentional islanding.
Chun Sing Lai, Can Wang, Zhuoli Zhao
exaly   +2 more sources

Optimization of Emergency Load Shedding Employing Social Learning-Based PSO

2021 International Conference on Computer Engineering and Artificial Intelligence (ICCEAI), 2021
Emergency load shedding (ELS) is an essential measure to prevent power system accidents from expanding. Economy and security need to be optimized comprehensively for ELS. In this paper, an ELS optimization model is established, which takes the minimum load shedding amount as the objective function and the transient angle security, transient voltage ...
Yongsheng Xie, Changyou Feng, Chenhao Gai, Changgang Li   +3 more
openaire   +1 more source

An emergency load shedding algorithm

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2015
A new emergency load shedding algorithm is pro posed in this paper based on the state plane representation of generator speed and power angle. When the trajectory of the power system stays in concave regions, the system is stable. When the trajectory crosses though the convex regions, the system is detected as unstable state.
Huaiyuan Wang, Baohui Zhang, Dezhi Chen
openaire   +1 more source

A new method for generation shedding and load shedding in power system emergency control

2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies. Proceedings, 2004
A new method for seeking the scheme of generation shedding (GS) and load shedding (LS) in the emergency control of power system is proposed in this paper. The method is based on the topological and dynamic characterization of stability boundary of nonlinear dynamic system.
null Yong Min, null Kaiyuan Hou, null Ruiqi Zhang, null Qiang Tu   +3 more
openaire   +1 more source

Coordinated emergency control of load shedding and FACTS devices

2005 IEEE Russia Power Tech, 2005
This paper describes the development of a control system and control strategies capable of governing multiple flexible AC transmission system (FACTS) devices in coordination with load shedding. The main purpose of the presented coordinated control system is to remove overloads caused by lines' outages in transmission network.
Etingov, Pavel, Oudalov, Alexandre, Voropai, Nikolai, Germond, Alain, Cherkaoui, Rachid   +4 more
openaire   +1 more source

Risk-Averse Graph Learning for Real-time Power System Emergency Load Shedding

2022 IEEE PES Innovative Smart Grid Technologies - Asia (ISGT Asia), 2022
With the increasing integration of renewable energy sources, maintaining secure and reliable power system operation becomes more challenging due to the escalated stochasticity and variations in the system. Emergency load shedding (ELS) serves as a fast and effective stability control scheme for power system after a risky disturbance occurs, which can ...
Jizhe Liu, Yuchen Zhang 0001, Ke Meng 0001, Yan Xu 0005, Zhao Yang Dong   +4 more
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Trajectory sensitivity-based emergency load shedding optimal algorithm

2015 5th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT), 2015
Huge power transmitted over long distance through some crucial lines increases the probability of a sudden loss of bulk power in the power-receiving system. To prevent such emergency from deteriorating the security of the system, an emergency load shedding model, whose objective is to minimize the total load shedding cost, is built, and then an ...
Xin Xu, Hengxu Zhang, Yun Chai, Fang Shi, Zhaowei Li, Wei Li   +5 more
openaire   +1 more source