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Current transformer ratio for primary relays in IEEE 6-bus network

Table 18 Current transformer ratio for primary relays in IEEE 6-bus network

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This Thesis was Defended Successfully on 19/2/2023 and approved by Tareq Husam Foqha
This Thesis was Defended Successfully on 19/2/2023 and approved by Tareq Husam Foqha
Radial Network 1.3 Significance of Research Figure 1.1 The significance of this research derives from the importance of integrating two
Radial Network 1.3 Significance of Research Figure 1.1 The significance of this research derives from the importance of integrating two
Protection System Concepts Note: Subfigure (A) represents the protection zones in power system and it is adapted from [17],
Protection System Concepts Note: Subfigure (A) represents the protection zones in power system and it is adapted from [17],
Overcurrent relay operating time characteristics. Note: Adapted from [16]. Subfigure (A) represents definite current operating characteristic of th overcurrent relay, subfigure (B) represents definite time operating characteristic of the overcurrent relay subfigure (C) represents inverse time operating characteristic of the overcurrent relay and subfigure (D represents IDMT operating characteristic of the overcurrent relay.
Overcurrent relay operating time characteristics. Note: Adapted from [16]. Subfigure (A) represents definite current operating characteristic of th overcurrent relay, subfigure (B) represents definite time operating characteristic of the overcurrent relay subfigure (C) represents inverse time operating characteristic of the overcurrent relay and subfigure (D represents IDMT operating characteristic of the overcurrent relay.
Note: Adapted from [21]. Subfigure (A) represents the IEC standard operating characteristic curves of the overcurrent relay and Subfigure (B) represents the IEEE standard operating characteristic. Figure 1.4
Note: Adapted from [21]. Subfigure (A) represents the IEC standard operating characteristic curves of the overcurrent relay and Subfigure (B) represents the IEEE standard operating characteristic. Figure 1.4
Figure 1.5 relays by allowing an overload margin exceeding the nominal current [15]:
Figure 1.5 relays by allowing an overload margin exceeding the nominal current [15]:
Radial Power System Protection
Radial Power System Protection
Comparison between mathematically-based optimization methods. 1.7.1.2 Meta-Heuristic Optimization Techniques Table 1.2
Comparison between mathematically-based optimization methods. 1.7.1.2 Meta-Heuristic Optimization Techniques Table 1.2
Subjected to (refer to equations 4.4, 4.6 4.9 and 4.10):
Subjected to (refer to equations 4.4, 4.6 4.9 and 4.10):
3.2.1 Linear Programming Formulation The IEEE 3-bus network's PS values for the relays Table 3.1
3.2.1 Linear Programming Formulation The IEEE 3-bus network's PS values for the relays Table 3.1
Figure 3.1 TMS values by LP formulation for the IEEE 3-bus network
Figure 3.1 TMS values by LP formulation for the IEEE 3-bus network
Total operation time compared to the literature for the proposed methods
Total operation time compared to the literature for the proposed methods
Comparison of total net gain in time obtained by proposed methods with the algorithms used in the literature
Comparison of total net gain in time obtained by proposed methods with the algorithms used in the literature
Percentage improvement of the proposed methods compared to other algorithms in the literature for IEEE 3-bus network in terms of the net relay operational time The CTI of each relay pair is presented in Table 3.4. It is demonstrated each backup an primary relay pair satisfy the CTI criteria and that all of them are greater than 0.2. The CTI of each relay pair is presented in Table 3.4. It is demonstrated each backup and
Percentage improvement of the proposed methods compared to other algorithms in the literature for IEEE 3-bus network in terms of the net relay operational time The CTI of each relay pair is presented in Table 3.4. It is demonstrated each backup an primary relay pair satisfy the CTI criteria and that all of them are greater than 0.2. The CTI of each relay pair is presented in Table 3.4. It is demonstrated each backup and
CTI using the LP formulation for the IEEE 3-bus network 3.2.2 Non Linear Programming Formulation
CTI using the LP formulation for the IEEE 3-bus network 3.2.2 Non Linear Programming Formulation
Relay settings for IEEE 3-bus network by NLP formulation
Relay settings for IEEE 3-bus network by NLP formulation
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms From the obtained results, it can be concluded that the suggested methods have once
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms From the obtained results, it can be concluded that the suggested methods have once
Total operation time compared to the literature for the proposed methods
Total operation time compared to the literature for the proposed methods
CTI using the NLP formulation for the IEEE 3-bus network 3.3 Test System IT: IEEE 6-bus Network Table 3.7
CTI using the NLP formulation for the IEEE 3-bus network 3.3 Test System IT: IEEE 6-bus Network Table 3.7
Number of fitness evaluation for the GA and hybrid algorithms Table 3.8
Number of fitness evaluation for the GA and hybrid algorithms Table 3.8
IEC and IEEE Constants for Standard Overcurrent Relays.
IEC and IEEE Constants for Standard Overcurrent Relays.
Time-delay Coordination for Definite-Time Protection
Time-delay Coordination for Definite-Time Protection
Figure B.4
Figure B.4
Current-based Coordination for Combined Inverse-Time and Instantaneous Protection
Current-based Coordination for Combined Inverse-Time and Instantaneous Protection
Classifications of optimization techniques
Classifications of optimization techniques
Figure D.1
Figure D.1
Figure D.2
Figure D.2
Note: Adapted from [35]. Figure D.4 Note: Adapted from [99].
Note: Adapted from [35]. Figure D.4 Note: Adapted from [99].
Figure D.8
Figure D.8
Three-phase short circuit current of IEEE 3-bus network
Three-phase short circuit current of IEEE 3-bus network
Current transformer ratio for primary relays in IEEE 3-bus network
Current transformer ratio for primary relays in IEEE 3-bus network
IEEE 3-bus network single-line diagram
IEEE 3-bus network single-line diagram
Three-phase short circuit current of IEEE 6-bus network
Three-phase short circuit current of IEEE 6-bus network
IEEE 9-bus network single-line diagram
IEEE 9-bus network single-line diagram
Current transformer ratio for primary relays in IEEE 15-bus network Figure E.4
Current transformer ratio for primary relays in IEEE 15-bus network Figure E.4
PS values for relays in IEEE 6-bus network
PS values for relays in IEEE 6-bus network
LP-based relay settings for the IEEE 6-bus network
LP-based relay settings for the IEEE 6-bus network
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms
CTI using the LP formulation for the IEEE 6-bus network
CTI using the LP formulation for the IEEE 6-bus network
NLP-based relay settings for the IEEE 6-bus network
NLP-based relay settings for the IEEE 6-bus network
CTI using the NLP formulation for the IEEE 6-bus network
CTI using the NLP formulation for the IEEE 6-bus network
Total operation time compared to the literature for the proposed methods
Total operation time compared to the literature for the proposed methods
Total operating time of the proposed methods.
Total operating time of the proposed methods.
NLP-based relay settings for the IEEE 9-bus network
NLP-based relay settings for the IEEE 9-bus network
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms
Comparison of the proposed methods' percentage improvement and the overall net gain in time over the literature's algorithms
CTI using the NLP formulation for the IEEE 9-bus network
CTI using the NLP formulation for the IEEE 9-bus network
Total operation time compared to the literature for the proposed methods
Total operation time compared to the literature for the proposed methods
Percentage improvement of the proposed methods compared to other algorithms in the literature for IEEE 3-bus network in terms of the net relay operational time
Percentage improvement of the proposed methods compared to other algorithms in the literature for IEEE 3-bus network in terms of the net relay operational time
NLP-based relay settings for the IEEE 15-bus network
NLP-based relay settings for the IEEE 15-bus network
Comparison of the results for IEEE 15-bus network with NLP formulation.
Comparison of the results for IEEE 15-bus network with NLP formulation.
CTI using the NLP formulation for the IEEE 15-bus network
CTI using the NLP formulation for the IEEE 15-bus network
Total operational time compared to the literature for the proposed algorithms.
Total operational time compared to the literature for the proposed algorithms.
Related topics:
Firefly AlgorithmOvercurrent RelayDirectional Overcurrent RelayOvercurrent Protection
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