Beat The Heat: Thermal Constraint Building Using AC SFT in the New Zealand Electricity Market

Chakrabarti, Bhujanga and Callaghan, Chris and Krichtal, Vladimir and Goodwin, Doug and Mistry, Mahesh (2011) Beat The Heat: Thermal Constraint Building Using AC SFT in the New Zealand Electricity Market. IEEE power & energy magazine, 9 (2). pp. 67-73. ISSN Digital Object Identifi er 10.1109/MPE.2010.939952 Date of publication: 23 February 2011

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Abstract or Summary

Bhujanga Chakrabarti, Chris Callaghan, Vladimir Krichtal, Doug Goodwin, and Mahesh Mistry THE TWO ISLANDS OF THE NEW ZEALAND POWER SYSTEM are connected through an HVdc link of about 1,200 MW capacity (Figure 1). The system has a total peak load of about 7,500 MW. Transpower acts as both the transmission provider and the independent system operator. The New Zealand electricity market (NZEM) is operated by the system operator (SO). The nodal market introduced in 1996 was the first of the second generation of electricity markets in the world. Transpower has recently upgraded the original market management systems and introduced a new component: the simultaneous feasibility test based on ac power fl ow method (ac SFT). This component is designed to automate the building of thermal constraints in planning studies and dispatch schedules. SFT uses the most up-to-date network and confi guration information (including outages) to build the necessary thermal constraints so as to ensure a secure and reliable dispatch for each trading period. SFT and the scheduling, pricing, and dispatch (SPD) tool are used iteratively to build thermal constraints satisfying both optimality and thermal security. There is also a standby dc SFT, used in cases where ac SFT fails to produce a power fl ow solution using the ac method. This is a nonlinear dc SFT, and it works by ignoring the reactive power–voltage submatrix in the decoupled power flow.

Item Type:Journal article
Keywords that describe the item:Thermal Constraints, SPD, SFT, NZEM, Electricity Market
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Schools > Centre for Engineering and Industrial Design
ID Code:5821
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Deposited On:01 Mar 2018 03:37
Last Modified:01 Mar 2018 03:37

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