Coordinated Decentralized Emergency Voltage and Reactive Power Control to Prevent Long-Term Voltage Instability in a Power System

Islam, Sk. Razibul; Sutanto, Danny; Muttaqi, Kashem M.

doi:10.1109/tpwrs.2014.2369502

Cited by 63 publications

(40 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In [9], a control approach against power system voltage instability is proposed. It is building on an admittance matrixbased method called electric distance, which can be easily derived from the absolute value of the inverse of the system admittance matrix.…”

Section: B Bus Admittance Matrix-based Methodmentioning

confidence: 99%

L-Index Sensitivity Based Voltage Stability Enhancement

Liu

You

Sun

et al. 2017

2017 IEEE 85th Vehicular Technology Conference (VTC Spring)

View full text Add to dashboard Cite

any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Additional information:Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract-Voltage stability is a long standing issue in power systems. Due to the requirements of on-line monitoring and high computation efficiency, L-index is used as voltage stability metric in this paper. We propose a novel L-index sensitivity based control algorithm for voltage stability enhancement. The proposed method uses both outputs of wind generators and additional reactive power compensators as control variables. The sensitivities between L-index and control variables are introduced. Based on these sensitivities, the control algorithm can minimise all the control efforts, while satisfying the predetermined L-index value. This paper then verifies the proposed voltage stability enhancement method using real load and wind generation data in the IEEE 14 bus system. The simulation results prove the effectiveness of proposed methodology in enhancement of voltage stability.

show abstract

Section: B Bus Admittance Matrix-based Methodmentioning

confidence: 99%

L-Index Sensitivity Based Voltage Stability Enhancement

Liu

You

Sun

et al. 2017

2017 IEEE 85th Vehicular Technology Conference (VTC Spring)

View full text Add to dashboard Cite

show abstract

“…For a TSS of this second type, the objective is to prevent a nearby generator from getting limited, thereby losing its voltage control ability [10]. It is well known that generator reactive power limitations reduce the maximum power that can be delivered to loads, which is the root cause of longterm voltage instability [2].…”

Section: Tss Near Generatormentioning

confidence: 99%

A dynamic simulation approach to identify additional reactive reserves against long-term voltage instability

Papangelis

Panciatici²,

Cutsem

2015

2015 IEEE Eindhoven PowerTech

View full text Add to dashboard Cite

Abstract-A simple method is proposed to identify additional reactive reserves enabling to counteract long-term voltage instability after a large disturbance. In contrast to the many references based on power flow calculations, the method resorts to dynamic simulation. The post-disturbance system evolution is simulated in the presence of time-varying shunt susceptances with specified rate of change. This allows to deal with dynamic issues such as the required speed of the additional reactive power sources, or the onset of unstable electromechanical oscillations. Furthermore, a compromise is sought between the speed of action and the volume of additional compensation. The method is demonstrated on a detailed model of the Nordic test system.

show abstract

“…However, because of the multitude of credible events, a large number of PLN curves have to be attained, and this could lengthen the duration of calculation in the online mode and increase the likelihood of computational error in the real‐time mode. Hence, to reduce the computational burden, partitioning of the network can be suggested as a solution …”

Section: Introductionmentioning

confidence: 99%

“…In previous studies, for contingency assessment of large‐scale power systems, electrical distance–based regionalization is performed. Sanchez et al present a developed partitioning scheme on the transmission systems by determining the optimal number and size of clusters.…”

Section: Introductionmentioning

confidence: 99%

“…This protects the scheme against frequency and voltage fluctuations and has the following unique features: The RMLT reduces the number of PLN curves to be extracted to a larger extent than does the UVFLS scheme . In consequence of this, the duration of the online study is shortened and computational burden, and the memory required is reduced; Unlike the previously proposed partitioning ideas, which only benefit from the concept of electrical distance, the combinational distance criteria introduced here are sensitive to the operating point of the system as well as being sensitive to system topology. In this way, the probability of making computational error associated with the LSA is reduced; In some previous partitioning plans, the number of resulting zones depends on the number of DGs.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Network partitioning for voltage and frequency recovery in an inverter‐based distribution power system

Nourollah

Pirayesh

2017

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary In distribution systems, protection schemes are highly important. Recently, load shedding (LSH) is attracting more attention in stability margin enhancement of voltage and frequency in microgrids. This paper introduces a regionalization‐based multilevel technique (RMLT) via a combination of frequency and voltage LSH in inverter‐based autonomous AC distribution systems. The aim is to simultaneously restore voltage and frequency to their desired ranges in the event of severe disturbances and also in emergency conditions. In the RMLT, to determine the proper load to be shed and to enable LSH in the system operation mode (ie, real‐time mode) following each pernicious event, it is proposed that a recurrent online study be performed on network topology and the sensitivity of voltage to real power. In this case, the quick achievement of accurate results implies the regionalization of the system into several zones from the point of view of network topology and voltage and the assignment of an agent to each zone. The RMLT is simulated on a standard IEEE 37‐bus distribution system, and the results obtained confirmed the appreciable increase in the security margin of voltage and frequency and the decrease in the probability of system tripping.

show abstract

Coordinated Decentralized Emergency Voltage and Reactive Power Control to Prevent Long-Term Voltage Instability in a Power System

Cited by 63 publications

References 21 publications

L-Index Sensitivity Based Voltage Stability Enhancement

L-Index Sensitivity Based Voltage Stability Enhancement

A dynamic simulation approach to identify additional reactive reserves against long-term voltage instability

Network partitioning for voltage and frequency recovery in an inverter‐based distribution power system

Contact Info

Product

Resources

About