### Abstract

A quadratic prediction algorithm has been proposed previously that estimates the future state from three preceding values of the same state. The original proof of that algorithm was developed based on loads changing at constant power factor. Since real power system loads are composite in nature, it is important to analyze that algorithm's performance for different load models. This paper studies the effect of constant power load, constant current load, constant impedance load, and the WECC load model on the performance of the three-sample based quadratic prediction algorithm. The analysis is performed using the IEEE-118 bus system, a 4000-bus WECC model, as well as real-data obtained from a utility. The results indicate that the three-sample based quadratic prediction algorithm is able to estimate the states accurately for all the load models.

Original language | English (US) |
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Title of host publication | 2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015 |

Publisher | Institute of Electrical and Electronics Engineers Inc. |

ISBN (Electronic) | 9781479917853 |

DOIs | |

State | Published - Jun 23 2015 |

Externally published | Yes |

Event | 2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015 - Washington, United States Duration: Feb 18 2015 → Feb 20 2015 |

### Other

Other | 2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015 |
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Country | United States |

City | Washington |

Period | 2/18/15 → 2/20/15 |

### Keywords

- Load models
- Phasor measurement unit (PMU)
- Quadratic prediction
- State estimation

### ASJC Scopus subject areas

- Computer Networks and Communications
- Electrical and Electronic Engineering

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## Cite this

*2015 IEEE Power and Energy Society Innovative Smart Grid Technologies Conference, ISGT 2015*[7131811] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISGT.2015.7131811