Fault Location and Restoration of Microgrids via Particle Swarm Optimization
Abstract
:1. Introduction
2. Problem Description of Fault Location and Service Restoration in MGs
- (1)
- Impedance method;
- (2)
- High-frequency components and wavelet transform;
- (3)
- Artificial neural network;
- (4)
- Comparison measurement and simulation value;
- (5)
- Hybrid method.
3. Derivation of Fault Location Approach
3.1. Graph Theory-Based Power Flow Algorithm
3.2. Fault Location Alogrithm Based on ZBus
3.3. Solution Procedure of the Proposed Fault Location Algorithm
4. Proposed Service Restoration Approach
5. Numerical Results and Discussions
5.1. Description of the Sample System and Simulation Scenarios
- ✓
- Scenario 1: A single-point fault in the line segment is assumed between buses 702 and 703. This fault is used to simulate a situation in which most of the downstream areas of the MG are affected due to the fault that occurred in the upstream of the MG.
- ✓
- Scenario 2: A double-point fault in a line segment is assumed: one point is between buses 702 and 703, and the other point is between buses 727 and 703. This fault is used to simulate multiple power outages in downstream areas. Multiple tie switches and lines must be operated at the same time for service restoration.
- ✓
- Scenario 3: A triple-point fault in the line segment is assumed. The multiple fault points are between buses 702 and 703, buses 727 and 703, and buses 710 and 734. This fault is used to simulate power generation less than the load demand in the downstream islanded area. Load shedding is required for this situation.
5.2. Grid-Tied Operation
5.3. Islanding Operation
6. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Acknowledgments
Conflicts of Interest
References
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Switch No. | From Bus | To Bus | Length(m) | Voltage | Phase |
---|---|---|---|---|---|
S36 | 701 | 722 | 91.44 | 4.8 kV | ABC |
S37 | 741 | 735 | 152.40 | 4.8 kV | ABC |
S38 | 727 | 732 | 60.96 | 4.8 kV | ABC |
S39 | 725 | 731 | 243.84 | 4.8 kV | ABC |
S40 | 712 | 740 | 457.20 | 4.8 kV | ABC |
Scenario | Fault Type | Fault Point between Two Buses |
---|---|---|
Scenario 1 | Three-phase short-circuit bolted fault | 702–703 |
Scenario 2 | Three-phase short-circuit bolted fault | 702–703, 727–703 |
Scenario 3 | Three-phase short-circuit bolted fault | 702–703, 727–703, 710–734 |
Scenario | Fault Location | Switch | Restoration(%) | Power Loss | Radial Type | ||
---|---|---|---|---|---|---|---|
Open | Close | Operation Number | |||||
1 | 702–703 | S(708–709) | S39 S40 | 3 | 100% | 62.67 kW | Yes |
2 | 702–703 727–703 | S(708–733) | S38 S39 S40 | 4 | 100% | 61.47 kW | Yes |
3 | 702–703 727–703 710–734 | S(708–733) | S37 S38 S39 S40 | 5 | 100% | 60.46 kW | Yes |
Scenario | Fault Location | Switch | Load Shedding Bus | Restoration (%) | Power Loss | Radial Type | ||
---|---|---|---|---|---|---|---|---|
Open | Close | Operation Number | ||||||
1 | 702–703 | - | S39 | 1 | 701 722 728 735 736 737 738 | 83.61% | 22.27 kW | Yes |
2 | 702–703 727–703 | - | S38 S39 | 2 | 83.61% | 22.41 kW | Yes | |
3 | 702–703 727–703 710–734 | - | S37 S38 S39 | 3 | 83.61% | 22.40 kW | Yes |
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Lin, W.-C.; Huang, W.-T.; Yao, K.-C.; Chen, H.-T.; Ma, C.-C. Fault Location and Restoration of Microgrids via Particle Swarm Optimization. Appl. Sci. 2021, 11, 7036. https://doi.org/10.3390/app11157036
Lin W-C, Huang W-T, Yao K-C, Chen H-T, Ma C-C. Fault Location and Restoration of Microgrids via Particle Swarm Optimization. Applied Sciences. 2021; 11(15):7036. https://doi.org/10.3390/app11157036
Chicago/Turabian StyleLin, Wei-Chen, Wei-Tzer Huang, Kai-Chao Yao, Hong-Ting Chen, and Chun-Chiang Ma. 2021. "Fault Location and Restoration of Microgrids via Particle Swarm Optimization" Applied Sciences 11, no. 15: 7036. https://doi.org/10.3390/app11157036
APA StyleLin, W.-C., Huang, W.-T., Yao, K.-C., Chen, H.-T., & Ma, C.-C. (2021). Fault Location and Restoration of Microgrids via Particle Swarm Optimization. Applied Sciences, 11(15), 7036. https://doi.org/10.3390/app11157036