Setting Considerations of Distance Relay for UHV/EHV Long Transmission Lines

Su, Bin; Wang, Jianping; Yang, Ying; Gong, Weixing; Xu, Yongsheng

doi:10.1109/pes.2007.385557

Cited by 6 publications

(6 citation statements)

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“…The effects are confronted distance relay with two well-known mis-operation: overreach and underreach. Several researches are done on improving distance relay algorithms [1], [2], [3], charging current effect [4], [5], [6], [7], [8], mutual coupling [2], [9], [10], [11], fault detection [12], [13], [14], [15], [16], doubly fed effect [17] and signal decomposition algorithm [18], [19], [20]. Fault resistance push distance relay to overreach; hence, fault impedance is calculated based on Bergerons equation and compensate distributed transmission line capacitance is presented in [1].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Distance Relay Operation on Fault Condition in MATLAB Software/Simulink

Zin¹,

Tavalaei²,

Habibuddin³

2014

EECSI

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In this paper a distance relay is simulated in the proposed transmission line protection which is combination of overhead line and significant part of underground cable. Transmission line is modeled as distributed parameter instead of lumped parameter to have more accurate analysis compare to conventional analysis. Voltage and current are sampled at relay point. But, high charging current of cable affects distance relay operation. Using appropriate filtering can reduce charging current effect on distance relay. Simulated impedance will be compared with positive sequence impedance of power system in order to evaluate simulated relay. The relay shows a good result for faults in zone 1, but high resistance faults force distance relay to mis-operation.

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Section: Introductionmentioning

confidence: 99%

Simulation of Distance Relay Operation on Fault Condition in MATLAB Software/Simulink

Zin¹,

Tavalaei²,

Habibuddin³

2014

EECSI

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“…Relay design progressing is concerned with the improvement of conventional relay algorithms based on phasor concepts The complexities discussed in the protection performance of the series compensated lines call for the early fault detection and highspeed distance relays with good accuracy. We can find some of the advanced techniques with respect to the early fault detection and phasor estimation proposed in [20][21][22][23][24]. Adaptive reach settings of the distance relays for faults involving high arc resistance have been researched for some time now [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

“…We can find some of the advanced techniques with respect to the early fault detection and phasor estimation proposed in [20][21][22][23][24]. Adaptive reach settings of the distance relays for faults involving high arc resistance have been researched for some time now [23][24][25]. Methods for on-line corrections of the trip boundaries are presented using the wavelet transform in [26][27][28] and development of integrated protection systems in [29].…”

Section: Introductionmentioning

confidence: 99%

Adaptive distance relaying scheme in series compensated transmission lines

Srivani

Vittal

2010

2010 Joint International Conference on Power Electronics, Drives and Energy Systems &Amp; 2010 Power India

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The introduction of the capacitance in series with the line reactance adds certain complexities to the effective application of impedance based distance relays. The paper reviews series compensated line protection challenges and proposes the state of art relay with an integrated scheme in harmony with the present power system scenarios Development of the proposed scheme is in the specific area of incorporating the adaptive features like adaptive Relay setting as the compensation level changes in the series compensated lines of the transmission system for optimum reliability. Upon extensive testing on different data set of fault cases with fault resistance and varying percentage compensation level , performance of the developed method ensures that the proposed scheme overcomes the overreach / underreach problem of the distance relay in series compensated lines and is found to be quite promising.

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“…Relay design progressing is concerned with the improvement of conventional relay algorithms based on phasor concepts The complexities discussed in the protection performance of the series compensated lines call for the early fault detection and high-speed distance relays with good accuracy. We can find some of the advanced techniques with respect to the early fault detection and phasor estimation proposed in [20][21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

“…Adaptive reach settings of the distance relays for faults involving high arc resistance have been researched for some time now [23][24][25]. Methods for on-line corrections of the trip boundaries are presented using the wavelet transform in [26][27][28] and development of integrated protection systems in [29].…”

Section: Introductionmentioning

confidence: 99%

Integrated Adaptive Reach Setting of Distance Relaying Scheme in Series Compensated Lines

Srivani¹,

K²

2010

ijeei

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Abstract:The protection of series compensated lines is considered to be one of the most difficult tasks. The paper reviews the series compensated line protection challenges initially and presents state of art solution to improve the distance relay performance. The work describes the development and evaluation of an integrated adaptive distance protection scheme. Development of the adaptive scheme is in the specific area of incorporating the adaptive feature like adaptive reach setting of the relay as the compensation level changes in the series compensated lines, for optimum dependability and security of the protection system. The relay adapts its characteristics according to the informations received from the communication unit. Upon extensive testing on different data set of fault cases with fault resistance and varying percentage compensation level and fault location , performance of the developed method ensures that the proposed scheme overcomes the overreach/underreach problem of the distance relay in series compensated lines and is found to be quite promising.Index Terms: Adaptive Distance Relay, Adaptive relaying scheme, Digital distance relay, Full Cycle Fourier Transform, Series compensation. IntroductionSERIES compensation plays the vital role in modern heavily loaded grid transmission lines. The series capacitor makes sense because it is simple and could be installed for 15 to 30% of the cost of installing a new line. Series compensation in modern power systems influences the power flow in particular network segment, reduces active power losses prevents system and sub synchronous oscillations, and connects more robustly different subsystems to stronger integrated network .The introduction of series compensation in existing networks requires not only extensive studies into the expected performance of the new system but also into the influence of its introduction on the operation of existing protection control and monitoring systems.The introduction of the capacitance in series with the line reactance adds certain complexities to the effective application of impedance based distance relays. The protective distance relays, which make use of impedance measurements in order to determine the presence and location of faults, are "fooled" by installed series capacitance on the line when the presence or absence of the capacitor in the fault circuit is not known priori. Manuscript received on July 14. 2010.S. G Srivani is with the National Institute of Technology Surathkal, Karnataka, India. (e-mail:abc_sgs@yahoo.com.) K. P. Vittal, professor, is with the National Institute of Technology Surathkal, Karnataka, India. (e-mail: vittal_nitk@yahoo.com.).Series Capacitors(SCs) and their overvoltage protection devices (typically Metal Oxide Varistors (MOVs) and/or air gaps), in spite of their beneficial effects on the power system performance, introduce additional problems and make the operating conditions unfavorable for the protective relays that use conventional techniques and include phenomena such as voltage and...

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Setting Considerations of Distance Relay for UHV/EHV Long Transmission Lines

Cited by 6 publications

References 0 publications

Simulation of Distance Relay Operation on Fault Condition in MATLAB Software/Simulink

Simulation of Distance Relay Operation on Fault Condition in MATLAB Software/Simulink

Adaptive distance relaying scheme in series compensated transmission lines

Integrated Adaptive Reach Setting of Distance Relaying Scheme in Series Compensated Lines

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