Enhancing the coordination of reverse power, overcurrent, under-frequency, and under-voltage relays using transient stability analysis in real plant applications

Sari, Talitha Puspita; Priyadi, Ardyono; Pujiantara, Margo; Purnomo, Mauridhi H.

doi:10.1016/j.asej.2019.06.001

Cited by 15 publications

(6 citation statements)

References 10 publications

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“…The setting of the RPR on the generator in the Riau Power (PLTG). The reverse power and set of Reverse Power Relay can be calculated as follows [18,19,20]. Figure 3 presented the modeling of a generating system that is synchronized using Matlab / Simulink, which is adjusted to the Riau Power system data.…”

Section: Methodsmentioning

confidence: 99%

Modeling to Improve the Performance of Reverse Power Relay in Generator

Zakri

Rozi

2020

Sinergi

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The generator is the primary component in electricity generation and requires a protection system from internal and external interference that occurs. This study considers how to improve the performance of relays in power plants. A model of a generator that is executed in a fault condition to reset the protective equipment, namely Reverse Power Relay (RPR). The study is intended to model the state of internal and external fault on the generator by applying a working principle of RPR. The model is designed to anticipate the actual fault in the generator. The simulation results obtained output such as; active power, current and time delay relay. The RPR reset of the generator system is applied to the generator in Riau Power. The RPR is installed on the generator is -612 kW, equivalent to 30%, the relay delay time is 0.2 seconds. Based on standardization, the return of power reaches a maximum of -12.66 MW, which is captured 50% with a maximum replacement of 30 seconds. Results of the RPR simulation have been validated with the IEEE standard at a time delay that corresponds to the percentage of reverse power settings installed at 6% and a time delay of 0.6%. Finally, to maximize the protection system on the generator, adjust 50% to 95% of the installed settings. It can be said that the system is able to increase generator protection and minimize the impact of internal or external fault.

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Section: Methodsmentioning

confidence: 99%

Modeling to Improve the Performance of Reverse Power Relay in Generator

Zakri

Rozi

2020

Sinergi

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“…On the other hand, RPF could also be a result of the drastic reduction in the local load demand to the point of excess power in the network which then flows backward [ 18 ]. RPF is dangerous in the distribution network as it leads to voltage peaks above acceptable margins [ 19 ], and also critically affects the sensitivity and parameters of protective device coordination, hence negatively affecting power quality [ 20 ].…”

Section: Reverse Power Flow (Rpf)mentioning

confidence: 99%

Controlled electric vehicle charging for reverse power flow correction in the distribution network with high photovoltaic penetration: case of an expanded IEEE 13 node test network

Fokui¹,

Saulo

Ngoo

2022

Heliyon

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“…Optimal protection coordination (OPC) determines the DOCRs settings to isolate faults as fast as possible to minimize the faults spreading. Many studies are conducted on OPC, considering different objectives, such as satisfying transient stability constraints for single-and dual-setting DOCRs [20], [21], coordination among reverse power, overcurrent, under-voltage, and under-frequency relays for transient stability [22]. Also, a new overcurrent protection strategy that relies on a third-harmonic voltage generated by IIDGs during faults is proposed [23].…”

Section: Introductionmentioning

confidence: 99%

Optimal Protection Coordination of Active Distribution Networks With Synchronverters

Pola

Azzouz

2022

IEEE Access

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Synchronverters are inverters imitating synchronous generators (SGs) to curb adverse impacts of traditional inverters on power networks. However, synchronverters may generate unlimited currents during faults. In addition, limiting the synchronverter's fault currents by hard limiters could malfunction directional overcurrent relays (DOCRs). Thus, this paper employs virtual-impedance fault current limiters (VI-FCLs) that preserve the synchronverter's voltage source model to guarantee a reliable operation of DOCRs. Also, an optimal protection coordination (OPC) scheme is developed to size the VI-FCLs and determine the DOCRs' settings in a decoupled manner. The proposed protection scheme determines the highest values of the VI-FCLs that correspond to bolted faults at the synchronverters' terminals. These conservative values are then relaxed by adaptively varying the VI-FCL based on the fault severity to enhance the DOCR sensitivity. Further, a short circuit calculation algorithm is formulated to incorporate the developed synchronverter with VI-FCL into an OPC program to determine the optimal settings of DOCRs that minimize the total operating time of all primary and backup relays. Case studies ensure the proposed protection scheme's effectiveness in reliably protecting a radial 9-bus Canadian distribution system and a meshed 14-bus system powered by synchronverters.

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Enhancing the coordination of reverse power, overcurrent, under-frequency, and under-voltage relays using transient stability analysis in real plant applications

Cited by 15 publications

References 10 publications

Modeling to Improve the Performance of Reverse Power Relay in Generator

Modeling to Improve the Performance of Reverse Power Relay in Generator

Controlled electric vehicle charging for reverse power flow correction in the distribution network with high photovoltaic penetration: case of an expanded IEEE 13 node test network

Optimal Protection Coordination of Active Distribution Networks With Synchronverters

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