Abstract
Power quality is influenced by neutral grounding methods in distribution systems. Optimization for neutral grounding methods is discussed in the paper. Petersen-coil in parallel with high resistance earthed technique has a better performance in safety and power quality than other neutral point grounding techniques. To improve power quality, a novel method for measurement of zero sequence impedance in distribution systems is presented, Petersen-coil inductance is adjusted to compensate the total capacitance, and the resistor which is in parallel with the Petersen-coil is adjusted to control the over-voltage; some other novel techniques for grounding fault feeder protection based on testing the fault resistance or the energy dissipated in the fault point are also presented. The method of Petersen-coil tuning has been developed. Experimental results show that the optimization for neutral grounding methods and the protections proposed can improve the power quality by reducing the over-voltage, the residual current and the grounding fault duration.
| Original language | English |
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| Title of host publication | Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) |
| Pages | 306-310 |
| Number of pages | 5 |
| Volume | 1 |
| Publication status | Published - 25 Nov 2004 |
| Event | Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) - Hong Kong, Hong Kong Duration: 5 Apr 2004 → 8 Apr 2004 |
Conference
| Conference | Proceedings of the 2004 IEEE International Conference on Electric Utility Deregulation, Restructuring and Power Technologies (DRPT2004) |
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| Country/Territory | Hong Kong |
| City | Hong Kong |
| Period | 5/04/04 → 8/04/04 |
Keywords
- Fault detection
- Petersen-coil tuning
- Power quality
- Protective relaying
ASJC Scopus subject areas
- General Engineering