Adaptive setting of distance relay for MOV-protected series compensated line considering wind power

Sivov, Oleg Viktorovich; Abdelsalam, Hany A.; Makram, Elham B.

doi:10.1016/j.epsr.2016.03.048

Cited by 12 publications

(7 citation statements)

References 9 publications

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“…Providing adaptive distance protection settings to protect series compensated TLs connected with wind power is proposed in [24], depending on synchronized voltage and current measurements at both local and remote ends. Besides, the voltage measurements across the compensator and the current through it are also measured to estimate its impedance continuously during fault, which is considered the main drawback.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, the voltage measurements across the compensator and the current through it are also measured to estimate its impedance continuously during fault, which is considered the main drawback. In addition, the impact of ground fault resistance variations on the performance of proposed adaptive distance relay setting is not studied in [24].…”

Section: Introductionmentioning

confidence: 99%

“…The proposed distance protection scheme only requires the voltage measurement at the right side of the TCSC beside the local current and voltage measurements of distance relay at each end of the line. Therefore, the proposed method does not need the current and voltage measurement devices at the left side of the TCSC compared with the scheme introduced in [24].…”

Section: Introductionmentioning

confidence: 99%

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Enhancing Distance Protection of Long Transmission Lines Compensated With TCSC and Connected With Wind Power

2021

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Thyristor controlled series compensation (TCSC) is widely used in long transmission lines to mainly improve power transfer capability. However, TCSC produces complicated impedance that negatively affects distance protection operation. The wind energy generation system produces additional complexity to the distance protection performance due to the variation of wind speed and fault current level. This paper proposes an integrated scheme to change adaptively the settings of the Mho distance protection by shifting the relay characteristics considering the bad impacts of TCSC, wind power and fault resistance. The proposed scheme achieves its main stages starting from fault detection, until relay tripping decision procedure including online estimation for preliminary fault location, impedance of TCSC and fault resistance using limited communication requirements. By extensive MATLAB simulations, the performance of the proposed scheme is examined compared with the conventional Mho relays under different fault locations, fault inception angle, fault resistance, different wind power penetration, different wind speeds and different TCSC firing angles. The achieved results ensured that the proposed scheme improves significantly Mho distance relay operation and avoids under-reaching and overreaching problems irrespective of the large shunt capacitance along the transmission line, and also without identifying the parameters of TCSC such as the capacitance, the inductance or the firing angle.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Enhancing Distance Protection of Long Transmission Lines Compensated With TCSC and Connected With Wind Power

2021

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“…However, the economic feasibility and complexity of these technologies must be considered when designing and selecting such schemes. The schemes in [16] and [17] provide an adaptive setting for conventional distance relays considering the effects of impedance variation due to MOV operation. However, these schemes still need the pre-definition of the fault section.…”

Section: Introductionmentioning

confidence: 99%

Faulty Phase Identification for Transmission Line with Metal Oxide Varistor-protected Series Compensator

Musa

et al. 2021

Journal of Modern Power Systems and Clean Energy

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The nonlinear operation of metal oxide varistors (MOV)-protected series compensator in transmission lines introduces complications into fault detection approaches. The accuracy of a conventional fault detection schemes is adversely affected by continuous change of the system impedance and load current at the point of a series compensation unit. Thus, this study suggests a method for detecting the faulted phase in MOV-protected series-compensated transmission lines. Primarily, the fault feature is identified using the covariance coefficients of the current samples during the fault period and the current samples during the pre-fault period. Furthermore, a convenience fault detection index is established by applying the cumulative sum technique. Extensive validation through different fault circumstances is accomplished, including different fault positions, resistances, and inception times. The experimental results show that the proposed method performs well with high resistance or impedance faults, faults in noisy conditions, and close-in and far-end faults. The proposed method is simple and efficient for faulty phase detection in MOV-protected series-compensated transmission lines.

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“…Metal Oxide Varistor ) na linha de transmissão em estudo.Os bancos de capacitores em série atuam em uma linha de transmissão reduzindo sua reatância série, aumentando assim a capacidade de fluxo de potência passante nessa linha. Os benefícios desse uso incluem redução de problemas relacionadosà estabilidade de tensão, redução de perdas e interrupção do fornecimento de energia como discutido emSivov et al (2016).O MOV, a partir do varistor, atua contra sobretensões sobre o capacitor série segundoSivov et al (2016). O reator de amortecimento limita correntes de descarga do capacitor queé resultante do fechamento do gap de ar ou do disjuntor em derivação.…”

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Análise do impacto da qualidade de energia na operação de relés de proteção utilizando simulações digitais em tempo real

Pereira

Melo

Oliveira

et al. 2020

Anais Do Simpósio Brasileiro De Sistemas Elétricos 2020

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Neste artigo, simulações digitais em tempo real usando RTDS (Real Time Digital Simulator) são conduzidas com o objetivo de avaliar o impacto de problemas de qualidade de energia na operação de um relé e suas zonas de proteção. Variações de frequência, afundamentos de tensão e distorções harmônicas são considerados para se averiguar atuações diferentes do sistema de proteção de uma linha de transmissão brasileira. Os resultados obtidos atestam, de maneira prática, como a qualidade de energia pode levar o sistema de proteção a atuar de maneira diferente utilizando simulações PHIL (power-hardware-in-the-loop) baseando-se no modelo do sistema de transmissão e um relé comercial, parametrizado com função de distância. O desempenho e operação do relé em diferentes zonas de proteção são avaliados através de análises estatísticas.

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Adaptive setting of distance relay for MOV-protected series compensated line considering wind power

Cited by 12 publications

References 9 publications

Enhancing Distance Protection of Long Transmission Lines Compensated With TCSC and Connected With Wind Power

Enhancing Distance Protection of Long Transmission Lines Compensated With TCSC and Connected With Wind Power

Faulty Phase Identification for Transmission Line with Metal Oxide Varistor-protected Series Compensator

Análise do impacto da qualidade de energia na operação de relés de proteção utilizando simulações digitais em tempo real

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