Frequency control using thermal loads under the proposed ENTSO-E Demand Connection Code

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Title: Frequency control using thermal loads under the proposed ENTSO-E Demand Connection Code
Authors: Tindemans, SH
Trovato, V
Strbac, G
Item Type: Conference Paper
Abstract: © 2015 IEEE.Thermal loads such as refrigerators and electric space heaters use temperature hysteresis controllers that are insensitive to small temperature fluctuations. This results in an ability to modulate their power consumption, thus providing cost-effective frequency support, balancing services and energy arbitrage. In order to partially realise these benefits, ENTSO-E has proposed a mandatory frequency support service for thermal loads in its Network Code on Demand Connection. This is to be implemented as a proportional shift of the setpoint temperature in accordance with frequency deviations. In this paper we argue that this implementation choice results in an unpredictable response that depends strongly on controller details. Furthermore, it restricts the flexibility to implement advanced controllers that deliver multiple services simultaneously. We present a case study that demonstrates very different frequency response patterns from three controllers that are each compatible with the proposed Code. Alternative implementations of the code and controllers are presented to illustrate the scope for improvement.
Issue Date: 29-Jun-2015
Date of Acceptance: 16-Apr-2015
Publisher: IEEE
Start Page: 1
End Page: 6
Journal / Book Title: 2015 IEEE Eindhoven PowerTech
Copyright Statement: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Conference Name: PowerTech 2015
Publication Status: Published
Start Date: 2015-06-28
Finish Date: 2015-07-02
Conference Place: Eindhoven
Appears in Collections:Faculty of Engineering
Electrical and Electronic Engineering
Centre for Environmental Policy
Faculty of Natural Sciences

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