Strategy to minimise the load shedding amount for voltage collapse prevention

Wang, Y; Pordanjani, Iraj Rahimi; Li, W; Xu, Wilsun; Vaahedi, E.

doi:10.1049/iet-gtd.2010.0341

Cited by 55 publications

(65 citation statements)

References 12 publications

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“…However the sensitivities are so depended to the operating conditions so that they vary considerably when the operating conditions change. This matter causes the obtained solution of load shedding to be not efficient [12].…”

Section: Using Of Sensitivity Factorsmentioning

confidence: 99%

“…emergencies where the ac power flow solution cannot be found for the stressed system. The authors in [12] proposed a multistage method in order to obtain the best locations and the minimum amount of load shedding. In [13], an adaptive under-voltage load shedding algorithm is proposed using predictive control model to protect power system against voltage instability.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A new integer-value modeling of optimal load shedding to prevent voltage instability

Ahmadi

Alinejad‐Beromi

2015

International Journal of Electrical Power & Energy Systems

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Section: Using Of Sensitivity Factorsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A new integer-value modeling of optimal load shedding to prevent voltage instability

Ahmadi

Alinejad‐Beromi

2015

International Journal of Electrical Power & Energy Systems

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“…But in coordinated strategy both UFLS and UVLS is taken into effect which has improved results [2]. There are also strong support from literature in determining the apt location for load shedding and the amount to be shed for this non-linear optimization techniques are used [5].Similarly load shedding is determined by identifying the weakest node in the network using a voltage collapse proximity indicator (VCPI). The magnitude of the VCPI is determined by estimating the ratio of the impedance of the load to the Thevenin impedance looking into the network at a given voltage.…”

Section: Classical Analysis On Load Shedding By Earlier Literaturesmentioning

confidence: 99%

Negotiating Transmission Line Congestion Problems by Optimized Load Shedding Strategy

Ashokkumar¹,

Rathinakumar²

2012

IJCA

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In the present scenario, where there is steep rise in load demand and also where the electrical utility providers are unable to negotiate the demand rise by increasing the generation facilities, has resulted in transmission line congestion. Even though there are some solutions from FACTS controllers for tackling congestion in lines but it is not enough to tackle the problem. So as a last resort load shedding is the option available and followed. In this paper fuzzy expert system based approach is used to minimise the amount of load to be shed during the crisis. This has shown some improvement compared to conventional load shedding procedure. General TermsThis paper gives some solution for transmission congestion; load shedding comes as a last resort for managing transmission congestion issues.

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“…In recent years, some special system protection schemes (SPS) based on wide area measurement system (WAMS) were proposed to prevent voltage instability and related cascading events [4]- [12]. Some of them focused on adaptively adjusting the settings of the involved relays to ride through the emergency operation states [4] [5].…”

Section: Introductionmentioning

confidence: 99%

“…The sensitivity between relay operation margin and prevailing power flow was discussed in [8]- [11], together with related load shedding strategy. Moreover, in order to optimize the sensitivity calculation and countermeasures, some optimization algorithms and multi agent system (MAS) based control strategies were presented [11] [12].…”

Section: Introductionmentioning

confidence: 99%

Multiagent System-Based Wide-Area Protection and Control Scheme Against Cascading Events

Chen

2015

IEEE Trans. Power Delivery

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In this paper, a multi agent system (MAS) based wide area protection and control scheme is proposed to deal with the long term voltage instability induced cascading trips. Based on sensitivity analysis between the relay operation margin and power system state variables, an optimal emergency control strategy is defined to adjust the emergency states timely and prevent the unexpected relay trips. In order to supervise the control process and further minimize the load loss, an agent based process control is adopted to monitor the states of distributed controllers and adjust the emergency control strategy. A hybrid simulation platform based on LabVIEW and real time digital simulator (RTDS) is set up to simulate a blackout case in the power system of Eastern Denmark and to demonstrate the effectiveness of the proposed MAS based protection strategy.Index Terms-Cascading trips, hybrid simulation platform, multi agent system, process control, wide area protection 0885-8977 (c) Denmark. His research interests include power system analysis and digital simulation, operation and control of power system, wide area protection system on modern power system, wind power integration.Zhe Chen (M'95-SM'98) received the B.Eng. and M.Sc. degrees from Northeast China Institute of Electric Power Engineering,

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Strategy to minimise the load shedding amount for voltage collapse prevention

Cited by 55 publications

References 12 publications

A new integer-value modeling of optimal load shedding to prevent voltage instability

A new integer-value modeling of optimal load shedding to prevent voltage instability

Negotiating Transmission Line Congestion Problems by Optimized Load Shedding Strategy

Multiagent System-Based Wide-Area Protection and Control Scheme Against Cascading Events

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