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Primary Frequency Control Contribution From Smart Loads Using Reactive Compensation

IEEE transactions on smart grid, 2015-09, Vol.6 (5), p.2356-2365 [Peer Reviewed Journal]

ISSN: 1949-3053 ;EISSN: 1949-3061 ;DOI: 10.1109/TSG.2015.2402637 ;CODEN: ITSGBQ

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  • Title:
    Primary Frequency Control Contribution From Smart Loads Using Reactive Compensation
  • Author: Akhtar, Zohaib ; Chaudhuri, Balarko ; Shu Yuen Ron Hui
  • Subjects: Automatic voltage control ; Demand response (DR) ; demand-side management (DSM) ; electric spring (ES) ; Frequency control ; Impedance ; Inverters ; Power demand ; primary frequency control ; reactive compensator ; Reactive power ; smart load (SL) ; voltage control
  • Is Part Of: IEEE transactions on smart grid, 2015-09, Vol.6 (5), p.2356-2365
  • Description: 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.
  • Publisher: IEEE
  • Language: English
  • Identifier: ISSN: 1949-3053
    EISSN: 1949-3061
    DOI: 10.1109/TSG.2015.2402637
    CODEN: ITSGBQ
  • Source: IEEE Open Access Journals
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