### Abstract

This paper presents a new method for locating the source of capacitor switching transients using the complex wavelet-based energy approach. By using the complex wavelet transform, the transient power at the monitoring point is first calculated and the complex wavelet energy is obtained by integrating the transient power. From the wavelet energy plot against time, a change in wavelet energy from an approximately zero to a negative value indicates that the transient source is in front of the monitoring point. On the other hand, a change in wavelet energy from an approximately zero to a positive value indicates that the transient source is behind the monitoring point. To verify the proposed complex wavelet method, simulations by switching the capacitors using the PSCAD/EMTDC program were simulated for generating oscillatory transients. Comparisons were also made in locating the transient source using disturbance power and disturbance energy technique. Simulation results prove that the complex wavelet-based energy approach is more accurate than the disturbing power and disturbing energy method in locating the source of capacitor switching transients in a power distribution system.

Original language | English |
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Title of host publication | Series on Energy and Power Systems |

Pages | 281-286 |

Number of pages | 6 |

Volume | 2006 |

Publication status | Published - 2006 |

Event | 6th IASTED International Conference on European Power and Energy Systems, EuroPES 2006 - Rhodes Duration: 26 Jun 2006 → 28 Jun 2006 |

### Other

Other | 6th IASTED International Conference on European Power and Energy Systems, EuroPES 2006 |
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City | Rhodes |

Period | 26/6/06 → 28/6/06 |

### Fingerprint

### Keywords

- Capacitor switching
- Power quality
- Power system transients
- Wavelet transforms

### ASJC Scopus subject areas

- Engineering(all)

### Cite this

*Series on Energy and Power Systems*(Vol. 2006, pp. 281-286)

**Transient source location using complex wavelet-based energy.** / Hamzah, Noraliza; Mohamed, Azah; Hussain, Aini.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

*Series on Energy and Power Systems.*vol. 2006, pp. 281-286, 6th IASTED International Conference on European Power and Energy Systems, EuroPES 2006, Rhodes, 26/6/06.

}

TY - GEN

T1 - Transient source location using complex wavelet-based energy

AU - Hamzah, Noraliza

AU - Mohamed, Azah

AU - Hussain, Aini

PY - 2006

Y1 - 2006

N2 - This paper presents a new method for locating the source of capacitor switching transients using the complex wavelet-based energy approach. By using the complex wavelet transform, the transient power at the monitoring point is first calculated and the complex wavelet energy is obtained by integrating the transient power. From the wavelet energy plot against time, a change in wavelet energy from an approximately zero to a negative value indicates that the transient source is in front of the monitoring point. On the other hand, a change in wavelet energy from an approximately zero to a positive value indicates that the transient source is behind the monitoring point. To verify the proposed complex wavelet method, simulations by switching the capacitors using the PSCAD/EMTDC program were simulated for generating oscillatory transients. Comparisons were also made in locating the transient source using disturbance power and disturbance energy technique. Simulation results prove that the complex wavelet-based energy approach is more accurate than the disturbing power and disturbing energy method in locating the source of capacitor switching transients in a power distribution system.

AB - This paper presents a new method for locating the source of capacitor switching transients using the complex wavelet-based energy approach. By using the complex wavelet transform, the transient power at the monitoring point is first calculated and the complex wavelet energy is obtained by integrating the transient power. From the wavelet energy plot against time, a change in wavelet energy from an approximately zero to a negative value indicates that the transient source is in front of the monitoring point. On the other hand, a change in wavelet energy from an approximately zero to a positive value indicates that the transient source is behind the monitoring point. To verify the proposed complex wavelet method, simulations by switching the capacitors using the PSCAD/EMTDC program were simulated for generating oscillatory transients. Comparisons were also made in locating the transient source using disturbance power and disturbance energy technique. Simulation results prove that the complex wavelet-based energy approach is more accurate than the disturbing power and disturbing energy method in locating the source of capacitor switching transients in a power distribution system.

KW - Capacitor switching

KW - Power quality

KW - Power system transients

KW - Wavelet transforms

UR - http://www.scopus.com/inward/record.url?scp=33751243303&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33751243303&partnerID=8YFLogxK

M3 - Conference contribution

SN - 0889865574

SN - 9780889865570

VL - 2006

SP - 281

EP - 286

BT - Series on Energy and Power Systems

ER -