Availability Assessment Based Case-Sensitive Power System Restoration Strategy

Increasingly frequent severe weather events in recent years threaten the security of power systems and result in major power outages throughout the world. The development of reasonable power system restoration (PSR) solutions is therefore urgently needed to speed up the recovery of the power supply...

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Bibliographic Details
Published in:IEEE transactions on power systems 2020-03, Vol.35 (2), p.1432-1445
Main Authors: Liu, Weijia, Zhan, Junpeng, Chung, C. Y., Sun, Lei
Format: Article
Language:English
Subjects:
Availability
availability assessment
Blackout
ENERGY PLANNING, POLICY AND ECONOMY
Fault diagnosis
Meteorology
Optimization
Power generation
Power supplies
power system resilience
Power system restoration
Reactive power
Renewable energy sources
Restoration strategies
Steering
Support systems
Weather
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Summary:Increasingly frequent severe weather events in recent years threaten the security of power systems and result in major power outages throughout the world. The development of reasonable power system restoration (PSR) solutions is therefore urgently needed to speed up the recovery of the power supply while at the same time steering clear of vulnerable and risky equipment. This paper aims to develop a case-sensitive PSR model for power transmission systems that can adjust restoration solutions according to the evaluated availability of outage equipment in specific blackout scenarios and weather conditions. A novel PSR model that integrates the startup of generating units, formulation of the restoration network, renewable energy sources, and availability assessment of devices is proposed. A reformulated model is also proposed to relieve the computational burden of complex PSR problems. The availability of outage equipment is comprehensively assessed based on historical operating records, fault diagnosis results, and weather conditions. The assessed availability results are sensitive to the characteristics of real blackout cases and will support system operators generate case-sensitive PSR solutions while mitigating the vulnerable equipment. The feasibility and effectiveness of the proposed PSR model and its reformulations are verified through case studies.
ISSN:0885-8950
1558-0679
DOI:10.1109/TPWRS.2019.2940379