Primary Frequency Control Contribution From Smart Loads Using Reactive Compensation
File(s)
Published version
Author(s)
Akhtar, Z
Chaudhuri, B
Hui, SYR
Type
Journal Article
Abstract
Frequency-dependent loads inherently contribute to primary frequency response. This paper describes additional contribution to primary frequency control based on voltage-dependent noncritical (NC) loads that can tolerate a wide variation of supply voltage. By using a series of reactive compensators to decouple the NC load from the mains to form a smart load (SL), the voltage, and hence the active power of the NC load, can be controlled to regulate the mains frequency. The scope of this paper focuses primarily on reactive compensators for which only the magnitude of the injected voltage could be controlled while maintaining the quadrature relationship between the current and voltage. New control guidelines are suggested. The effectiveness of the SLs in improving mains frequency regulation without considering frequency-dependent loads and with little relaxation in mains voltage tolerance is demonstrated in a case study on the IEEE 37 bus test distribution network. Sensitivity analysis is included to show the effectiveness and limitations of SLs for varying load power factors, proportion of SLs, and system strengths.
Date Issued
2015-02-27
Citation
IEEE Transactions on Smart Grid, 2015
ISSN
1949-3061
Publisher
Institute of Electrical and Electronics Engineers
Journal / Book Title
IEEE Transactions on Smart Grid
Copyright Statement
© 2015 The Authors. This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/
License URL
Publication Status
Published