Coordination of generator protection with generator excitation control and generator capability

Mozina, Charles J.; Reichard, Michael; Bukhala, Z.; Conrad, S.; Crawley, T.; Gardell, J.; Hamilton, Robert C.; Hasenwinkle, I.; Herbst, D.; Henriksen, L.; Johnson, Gary L.; Kerrigan, P.; Khan, Saad Ahmad; Kobet, Gary; Kumar, P.; Patel, S.; Nelson, Bob; Sevcik, D.R.; Thompson, Michael J.; Uchiyama, J.; Usman, Saeeda; Waudby, P.; Yalla, M.

doi:10.1109/icps.2008.4606278

Cited by 6 publications

(6 citation statements)

References 3 publications

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“…In order to avoid damage to the generator, it is ensured that the generator does not cross the limits of allowable range of frequency, current and voltage which can be dangerous [17]. The alternator is taken out of service in case if control actions goes beyond the stability limits [18]. Five protection schemes are designed to secure the generator.…”

Section: Protection Against Damages and Faultsmentioning

confidence: 99%

Design and Implementation of an Automatic Synchronizing and Protection Relay through Power-Hardware-in-the-Loop (PHIL) Simulation

Muhammad¹,

Muhammad²,

Mahmood³

et al. 2019

Preprint

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This paper focuses on the design and implementation of an automatic synchronizing and protection relay to automate the synchronization process of a Distributed Energy Resource (DER) to the Main Grid. The proposed design utilizes a cost-effective data acquisition using Arduino in combination with LabVIEW software to implement the multi-purpose synchronizing relay. The proposed synchronizing relay is capable of synchronizing a Distributed Generator (DG) to the power grid from black-start and fulfils the requirements imposed by the utility. The synchronizing relay is implemented through voltage and frequency control of an actual lab-scale synchronous generator. In the synchronization process, frequency synchronization is done using speed control of the stepper motor as the prime mover and voltage synchronization is accomplished using Excitation Control module through Power-Hardware-in-the-Loop (PHIL) simulation. In grid-connected mode, active and reactive power controls and protection schemes for the synchronous generator have also been implemented. The proposed multi-function relay has been deployed and tested on a lab-scale test bed to validate the proposed design and functionality.

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Section: Protection Against Damages and Faultsmentioning

confidence: 99%

Design and Implementation of an Automatic Synchronizing and Protection Relay through Power-Hardware-in-the-Loop (PHIL) Simulation

Muhammad¹,

Muhammad²,

Mahmood³

et al. 2019

Preprint

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“…It consists of a steam-generator which is connected via a step-up transformer to two systems through a 300 km and 100 km, 230 kV transmission lines. The data of the steam generator and its capability curve are taken from (Mozina et al 2008). The system data are given in Appendix A.…”

Section: System Under Studymentioning

confidence: 99%

“…the PhD degree in electrical engineering from the University of Saskatchewan, Saskatoon, SK, Canada, in 2011. From 1998to 2008 SudUniversité in 1966SudUniversité in , 1979SudUniversité in and 1983 respectively. He got full professor of automatic control and its applications to power system in 1995.…”

mentioning

confidence: 99%

Enhancement of Turbo-Generators Phase Backup Protection Using Adaptive Neuro Fuzzy Inference System

Aziz

Elsamahy

Hassan

et al. 2017

International Journal of System Dynamics Applications

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This research work presents an advanced solution for the problem due to the current setting of Relay (21). This problem arises when it is set to provide thermal backup protection for the generator during two common system disturbances, namely a system fault and a sudden application of a large system load. These investigations are carried out using Adaptive Neuro Fuzzy Inference System (ANFIS). The results of the investigations have shown that the ANFIS has a promising tool when applied for turbo-generators phase backup protection. The effect of this tool varies according to the type of input data used for ANFIS testing and validation. The proposed method in this paper proposes the use of two different sets of inputs to the ANFIS, these inputs are the generator terminal impedance measurements (R and X) and the generator three phase terminal voltages and currents (V and I). The dynamic simulations of a test benchmark have been conducted using the PSCAD/EMTDC software. The results obtained from the ANFIS scheme are encouraging.

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“…In this regard, the North American Electric Reliability Council (NERC) is asking utilities verify the coordination between generator protection, generator capability, generator control and transmission line protection [1]. Therefore, research is being performed and reported in [2]- [4] to address the coordination between generator overexcitation limiters (OEL) and field overcurrent protection. Furthermore, the coordination between generator distance protection (Relay (21)), generator overexcitation limiters (OEL) and generator overexcited capability limit is being studied and reported only in [5].…”

Section: Introductionmentioning

confidence: 99%

Impact of Generator Distance Phase Backup Protection on Generator Overexcitation Thermal Capability during System Disturbances

Elsamahy

2014

2014 IEEE Electrical Power and Energy Conference

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In this paper investigations are carried out to explore the generalization of the adverse impact of the existing setting of the generator distance phase backup protection (Relay (21)) according to the existing standards on generator overexcitation thermal capability during system disturbances. These investigations are conducted in two stages; the first includes a SMIB system incorporating a midpoint STATCOM in order to increasing its power transfer capability. The second includes a multi-generator power plant configuration. Both stages have included the performance of Relay (21), during two common system disturbances, namely a system fault and a sudden application of a large system load while the generator overexcitation limiter (OEL) is in service. The results of this paper have generalized the restricting impact of the current setting of Relay (21) on the overexcitation thermal capability of the generator during system disturbances. Moreover, results also have proven that in-depth stability studies are of high paramount for selecting Relay (21) setting which will allow the generator to fulfill adequate level of voltage stability during system disturbances.Index Terms-Generator distance phase backup protection, Generator overexcitation thermal capability, generator overexcitation limiters (OEL), generator steady-state capability limit, , static synchronous compensator (STATCOM).

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Coordination of generator protection with generator excitation control and generator capability

Cited by 6 publications

References 3 publications

Design and Implementation of an Automatic Synchronizing and Protection Relay through Power-Hardware-in-the-Loop (PHIL) Simulation

Design and Implementation of an Automatic Synchronizing and Protection Relay through Power-Hardware-in-the-Loop (PHIL) Simulation

Enhancement of Turbo-Generators Phase Backup Protection Using Adaptive Neuro Fuzzy Inference System

Impact of Generator Distance Phase Backup Protection on Generator Overexcitation Thermal Capability during System Disturbances

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