Next Article in Journal
A Flexible Maximum Power Point Tracking Control Strategy Considering Both Conversion Efficiency and Power Fluctuation for Large-inertia Wind Turbines
Next Article in Special Issue
Hosting Capacity of the Power Grid for Renewable Electricity Production and New Large Consumption Equipment
Previous Article in Journal
Influence of Copper Particles on Breakdown Voltage and Frequency-Dependent Dielectric Property of Vegetable Insulating Oil
Previous Article in Special Issue
Double-Carrier Phase-Disposition Pulse Width Modulation Method for Modular Multilevel Converters
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Energies 2017, 10(7), 936; https://doi.org/10.3390/en10070936

A Piecewise Bound Constrained Optimization for Harmonic Responsibilities Assessment under Utility Harmonic Impedance Changes

1
School of Electrical Engineering, Southwest Jiaotong University, Chengdu 610031, China
2
Guizhou Key Laboratory of Electric Power Big Data, Guizhou Institute of Technology, Guiyang 550003, China
3
State Key Laboratory of Security Control and Simulation of Power Systems and Large Scale Generation Equipment, Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
*
Author to whom correspondence should be addressed.
Academic Editor: Frede Blaabjerg
Received: 22 April 2017 / Revised: 25 June 2017 / Accepted: 1 July 2017 / Published: 6 July 2017
(This article belongs to the Special Issue Distribution Power Systems and Power Quality)
View Full-Text   |   Download PDF [3264 KB, uploaded 10 July 2017]   |  

Abstract

Considering the effect of the utility harmonic impedance variations on harmonic responsibility, a method based on piecewise bound constrained optimization is proposed in this paper to evaluate the load harmonic responsibilities. The wavelet packet transform is employed to determine the change times of the utility harmonic impedances. The harmonic monitoring data is divided into several segments where the utility harmonic impedances are considered as constants. Then, the problem of harmonic responsibility assessment under utility harmonic impedance changes are settled by the piecewise bound constrained optimization model. Furthermore, the interior point, the sequential quadratic programming and the active set algorithm are respectively adopted to calculate all the instantaneous harmonic responsibilities of harmonic loads. Finally, the weighted summation is used to calculate the total harmonic responsibility. To demonstrate the validity, simulation tests are carried out on an experimental circuit and the IEEE 13-bus distribution system. View Full-Text
Keywords: harmonic responsibilities assessment; utility harmonic impedance changes; wavelet packet transform; piecewise approach; bound constrained optimization harmonic responsibilities assessment; utility harmonic impedance changes; wavelet packet transform; piecewise approach; bound constrained optimization
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zang, T.; He, Z.; Wang, Y.; Fu, L.; Peng, Z.; Qian, Q. A Piecewise Bound Constrained Optimization for Harmonic Responsibilities Assessment under Utility Harmonic Impedance Changes. Energies 2017, 10, 936.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Energies EISSN 1996-1073 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top