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A novel adaptive supervisory controller for optimized voltage controlled demand response

journal contribution
posted on 22.05.2019, 00:00 authored by E Abraham, Hesamoddin Marzooghi, J Yu, V Terzija
IEEE Recently, it has been shown that voltage-controlled demand response (VCDR), which is based on the principle of the dependence of the active power of demand on the system voltage, can provide ancillary services in future power systems. Voltage control devices used for VCDR can improve system frequency stability to various extents, depending on their locations, load size and load-voltage dependency in the grid. Thus, designing a supervisory controller to guarantee that such devices are optimally utilized for VCDR is necessary, as this can contribute in enhancing system frequency stability. In this paper, a novel adaptive supervisory controller (ASC) is proposed to optimally use VCDR resources in large power systems for such purposes. To ensure the effective operation of the ASC, an assessment of the impacts of on-load tap changer (OLTC) transformers on the system frequency is essential. In this regard, clustering techniques and principal component regression are used as offline tools to evaluate the influences of OLTCs transformers on VCDR in large-scale power systems using the IEEE 39-bus test system. Also, to estimate the effects of the OLTC transformer clusters on VCDR, a comprehensive sensitivity analysis with respect to the gain of the modified OLTC controllers’ frequency input is conducted.

History

Volume

10

Issue

4

Start Page

4201

End Page

4210

Number of Pages

10

eISSN

1949-3061

ISSN

1949-3053

Publisher

IEEE, USA

Peer Reviewed

Yes

Open Access

No

External Author Affiliations

The University of Manchester, SP Energy Networks,, UK

Era Eligible

Yes

Journal

IEEE Transactions on Smart Grid