Sequential Tripping Strategy for a Transmission Network Back-Up Protection Expert System

Jian-cheng, Tan; Crossley, P.A.; McLaren, P.G.; Hall, I.; Farrell, Jay A.; Gale, P.

doi:10.1109/mper.2001.4311162

Cited by 22 publications

(6 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Since the expected fault power for one line (stated in (12)) is for 3 phase faults, then the expected fault power for single-phase faults will be around one-third that value. Since the threshold value should be lower than all expected fault powers, it was selected as one-fourth of the value stated in (12) as given in (15). The threshold value is still much higher than of non-faulty condition power which is around zero.…”

Section: Threshold Selection Criterionmentioning

confidence: 99%

“…For the 39-bus system, PMUs were placed on buses 1 to 11, 13 to 19, 21 to 29 and 39 to monitor all 34 lines of the system. The mathematical formula of this level was previously introduced in ( 7), (12) for no-fault/external fault and internal fault respectively. The threshold values calculated using equation (15) for each line are listed in Table 3.…”

Section: Proposed Algorithm (Level -2)mentioning

confidence: 99%

“…The first category depends on measuring the sequence electrical quantities [4,[6][7][8][9]. The second type relies on gathering and analyzing the information provided by the protective relays across the network [10][11][12][13][14][15][16][17]. The third category intended to use a lower amount of electrical measurements by using the pre-fault impedance matrix of the faulted zone which depends on network topology [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A wide area fault detection algorithm for transmission networks equipped with series compensation units

Ebrahim

Wadie

Abdallah

2019

IJAPE

View full text Add to dashboard Cite

In this paper, a wide area back-up protection (WABP) algorithm is presented based on phasor measurement units (PMUs) measurements placed across the transmission network. The proposed algorithm computes a selected index named as positive sequence power index (PSPI) to detect faults in the network. Firstly, the network is subdivided into back-up protection zones. For each zone, the PSPI index is computed as absolute the value of the difference between the positive sequence sent and received phasor powers across the terminals of the zone. For each zone, the PSPI is compared to a predefined threshold to detect faults. One of the contributions in this paper is the usage of mathematical formulation to set the threshold values for each zone rather than experimental trials usually used in previous literature. In addition, the algorithm doesn’t depend iterative solutions nor line parameters of the network as usually used in WABP schemes. These advantages enhance the degree of confidence in decisions of the algorithm and reduces computational burdens to trivial amount. The presented algorithm (Level-1) could be enhanced into (level-2) if PMUs are available on all buses and in such case, the faulty line could be detected directly in a single step. WSCC 9-bus system and NE 39-bus systems were considered to accomplish this study. Severe cases for series compensated lines were taken into consideration including voltage or current inversion. Simulation results emphasis on algorithm’s robustness and adaptability.

show abstract

Section: Threshold Selection Criterionmentioning

confidence: 99%

Section: Proposed Algorithm (Level -2)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A wide area fault detection algorithm for transmission networks equipped with series compensation units

Ebrahim

Wadie

Abdallah

2019

IJAPE

View full text Add to dashboard Cite

show abstract

“…However, the existing research mainly focuses on the system configuration and fault identification, there is little discussion about the specific fault isolation scheme for fault clearance from a wide-area perspective. To the best of our knowledge, there have been few studies on this topic, except for the references [10]- [14] that aim to fast fault clearance and minimizing the clearing zone. The fault isolation schemes based on local information are activated by conventional backup protection, and they may isolate a broad zone of the power systems due to their unperfect selectivity and sensitivity.…”

Section: Introductionmentioning

confidence: 99%

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

Zhang

Tong

Hong

et al. 2022

IEEE Trans. Ind. Inf.

View full text Add to dashboard Cite

The flexible and dynamic operation condition of the power system requires that the fault isolation scheme has sufficient adaptability. A novel fault isolation scheme based on wide-area information is proposed in this paper. Based on graph theory, the adjacency matrices of the electrical components and circuit breakers are constructed. The real-time switch status data is exploited to reflect the dynamic changes of the network topology. Then, the tripping path of the circuit breaker connecting each protected electrical component is searched by the Floyd-Warshall algorithm to formulate the fault isolation set for all protected electrical components. The proposed approach is applied to fault isolation from a wide-area perspective, and it is not affected by system coordination and selectivity compared with the one based on local information. The effectiveness of the proposed scheme is verified on a power system with the typical electrical connection under the cases of a single fault, multiple faults, circuit breaker failure, and substation with the outage of DC power supply, and the case where the circuit breakers cannot trip. Since the tripping sequence of the circuit breakers is determined before the fault occurs, even with dynamic changes of the power system conditions, the proposed scheme can minimize the fault isolation zone with low fault clearance time.

show abstract

“…Other techniques have used new technologies based on remotely measured data like synchronized phasor measurements and optic fiber communications to prevent maloperation of zone 3 distance relays . Adaptive relaying techniques have also been used to control the operation of zone 3 distance relay, in which settings of the latter will be automatically adjusted by changing power system parameters .…”

Section: Introductionmentioning

confidence: 99%

A new algorithm to prevent maloperation of distance protection zone 3 during wide-area disturbances

Boussadia

Belkhiat

2018

Int Trans Electr Energ Syst

View full text Add to dashboard Cite

Summary This paper presents a new algorithm to avoid cascading tripping of interconnected transmission lines caused by maloperation of zone 3 distance relay during major power system disturbances. Blocking of zone 3 distance relay and the application of static var compensator controllers are the 2 corrective actions that proposed algorithm use to protect the power system from cascade tripping. Distance relay zone 3 blocking is achieved using real‐time information about the balance between generation and load in each area of the power system. However, the static var compensator controller allows injecting, rapidly and efficiently, necessary reactive power in the system to mitigate the disturbance development during the blockage of the distance relay protection. Results of dynamic simulation on 400 kV Turkish transmission system, using SECRE software, are presented to demonstrate the effectiveness of the proposed algorithm. Simulation results clearly indicate that the use of this algorithm can improve reliability of zone 3 distance relay operation, enhance the stable operation of power system, and can limit the spread of cascading outages during wide‐area disturbance.

show abstract

Sequential Tripping Strategy for a Transmission Network Back-Up Protection Expert System

Cited by 22 publications

References 4 publications

A wide area fault detection algorithm for transmission networks equipped with series compensation units

A wide area fault detection algorithm for transmission networks equipped with series compensation units

A Novel Fault Isolation Scheme in Power System With Dynamic Topology Using Wide-Area Information

A new algorithm to prevent maloperation of distance protection zone 3 during wide-area disturbances

Contact Info

Product

Resources

About