Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding

Bakhtyar Hoseinzadeh, Filipe Faria Da Silva, Claus Leth Bak

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

12 Citationer (Scopus)

Resumé

Load shedding (LS) is the last emergency control
action against voltage and frequency instability or even system
blackout. In conventional Under Frequency Load Shedding
(UFLS) relays, LS is carried out by curtailing a fixed amount
of load when the frequency declines below a set of predefined
thresholds and hence, may not be adaptive to disturbance scale.
Besides, due to equality of the frequency throughout the entire
power system, there is the possibility of coincidence operation
of relays and perhaps over load shedding. Furthermore, the
LS locations are already determined independent of disturbance
location. In this paper, to aim adaptive performance of relays, the
amount of load shed in each stage is determined proportional to
the measured Rate of Change of Frequency (ROCOF). In order
to localize the LS scheme close to the disturbance place, this
scheme utilizes the voltage drop information to shed the loads
with higher voltage decay first. Therefore, this approach deals
with coordination of voltage and frequency information instead of
independent methods. Numerical simulations which are carried
out in DigSilent PowerFactory software confirm the efficiency
of proposed methodology to stabilize the power system after a
severe contingency
OriginalsprogEngelsk
TitelProceedings of the IEEE Power & Energy Society General Meeting, PES 2014
Antal sider5
ForlagIEEE Press
Publikationsdatojul. 2014
ISBN (Trykt)9781479964161
ISBN (Elektronisk)9781479964147
DOI
StatusUdgivet - jul. 2014
BegivenhedIEEE Power & Energy Society General Meeting, PES 2014 - Washington, USA
Varighed: 27 jul. 201431 jul. 2014

Konference

KonferenceIEEE Power & Energy Society General Meeting, PES 2014
LandUSA
ByWashington
Periode27/07/201431/07/2014

Fingerprint

System stability
Electric potential
Computer simulation

Citer dette

Hoseinzadeh, B., Silva, F. F. D., & Bak, C. L. (2014). Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding. I Proceedings of the IEEE Power & Energy Society General Meeting, PES 2014 IEEE Press. https://doi.org/10.1109/PESGM.2014.6939306
Hoseinzadeh, Bakhtyar ; Silva, Filipe Faria Da ; Bak, Claus Leth. / Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding. Proceedings of the IEEE Power & Energy Society General Meeting, PES 2014. IEEE Press, 2014.
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title = "Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding",
abstract = "Load shedding (LS) is the last emergency control action against voltage and frequency instability or even system blackout. In conventional Under Frequency Load Shedding (UFLS) relays, LS is carried out by curtailing a fixed amount of load when the frequency declines below a set of predefined thresholds and hence, may not be adaptive to disturbance scale. Besides, due to equality of the frequency throughout the entire power system, there is the possibility of coincidence operation of relays and perhaps over load shedding. Furthermore, the LS locations are already determined independent of disturbance location. In this paper, to aim adaptive performance of the relays, the amount of load shed in each stage is determined proportional to the measured Rate of Change of Frequency (ROCOF). In order to localize the LS scheme close to the disturbance place, this scheme utilizes the voltage drop information to shed the loads with higher voltage decay first. Therefore, this approach deals with coordination of voltage and frequency information instead of independent methods. Numerical simulations which are carried out in DigSilent PowerFactory software confirm the efficiency of proposed methodology to stabilize the power system after a severe contingency.",
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Hoseinzadeh, B, Silva, FFD & Bak, CL 2014, Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding. i Proceedings of the IEEE Power & Energy Society General Meeting, PES 2014. IEEE Press, Washington, USA, 27/07/2014. https://doi.org/10.1109/PESGM.2014.6939306

Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding. / Hoseinzadeh, Bakhtyar; Silva, Filipe Faria Da; Bak, Claus Leth.

Proceedings of the IEEE Power & Energy Society General Meeting, PES 2014. IEEE Press, 2014.

Publikation: Bidrag til bog/antologi/rapport/konference proceedingKonferenceartikel i proceedingForskningpeer review

TY - GEN

T1 - Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding

AU - Hoseinzadeh, Bakhtyar

AU - Silva, Filipe Faria Da

AU - Bak, Claus Leth

PY - 2014/7

Y1 - 2014/7

N2 - Load shedding (LS) is the last emergency control action against voltage and frequency instability or even system blackout. In conventional Under Frequency Load Shedding (UFLS) relays, LS is carried out by curtailing a fixed amount of load when the frequency declines below a set of predefined thresholds and hence, may not be adaptive to disturbance scale. Besides, due to equality of the frequency throughout the entire power system, there is the possibility of coincidence operation of relays and perhaps over load shedding. Furthermore, the LS locations are already determined independent of disturbance location. In this paper, to aim adaptive performance of the relays, the amount of load shed in each stage is determined proportional to the measured Rate of Change of Frequency (ROCOF). In order to localize the LS scheme close to the disturbance place, this scheme utilizes the voltage drop information to shed the loads with higher voltage decay first. Therefore, this approach deals with coordination of voltage and frequency information instead of independent methods. Numerical simulations which are carried out in DigSilent PowerFactory software confirm the efficiency of proposed methodology to stabilize the power system after a severe contingency.

AB - Load shedding (LS) is the last emergency control action against voltage and frequency instability or even system blackout. In conventional Under Frequency Load Shedding (UFLS) relays, LS is carried out by curtailing a fixed amount of load when the frequency declines below a set of predefined thresholds and hence, may not be adaptive to disturbance scale. Besides, due to equality of the frequency throughout the entire power system, there is the possibility of coincidence operation of relays and perhaps over load shedding. Furthermore, the LS locations are already determined independent of disturbance location. In this paper, to aim adaptive performance of the relays, the amount of load shed in each stage is determined proportional to the measured Rate of Change of Frequency (ROCOF). In order to localize the LS scheme close to the disturbance place, this scheme utilizes the voltage drop information to shed the loads with higher voltage decay first. Therefore, this approach deals with coordination of voltage and frequency information instead of independent methods. Numerical simulations which are carried out in DigSilent PowerFactory software confirm the efficiency of proposed methodology to stabilize the power system after a severe contingency.

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Hoseinzadeh B, Silva FFD, Bak CL. Power System Stability Using Decentralized Under Frequency and Voltage Load Shedding. I Proceedings of the IEEE Power & Energy Society General Meeting, PES 2014. IEEE Press. 2014 https://doi.org/10.1109/PESGM.2014.6939306