Control of Underload-Tap Changing Transformer

Lim, Kok-Kee; Ilie, Marija D.

doi:10.23919/acc.1991.4791533

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…In the worst case, the first peak may reach about 15 breakage due to fatigue loading, particularly at the coupling with the wind turbine [6]. An arrangement with a tap-changing transformer and a phase-shifting transformer is used to connect two different power systems and to control power flow along a transmission line [7]- [9]. It has the drawbacks of stepwise operation and slow about stability problem on the grid, and components wear out due to repetitive action.…”

Section: Introductionmentioning

confidence: 99%

Flexible asynchronous ac link for power system network interconnection

Imdadullah¹,

Irshad

Asghar

et al. 2012

2012 IEEE Energytech

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The primary reason for interconnections among different power grids is to reduce the overall economic costs as well as increase reliability and security of supplying electricity services. Thus, for electrical power flow from one power system or grid to another power system or grid a simple, reliable and low cost interconnection is needed. In this paper, a flexible ac power transmission link technology has been proposed for linking two asynchronous independent power systems. The proposed flexible asynchronous ac link (FASAL) system essentially consists of a rotating transformer which is put in the ac tie line between two separate power systems or grids. It controls the power transmission between these power systems which are asynchronous under some or all operating conditions. The direction and the magnitude of power flow is controlled by controlling voltage and/or frequency. Simulink model of proposed FASAL system has been developed for the analytical study and the result verifies the power transfer capability of the proposed system. Index Terms--Flexible asynchronous ac link, power system interconnection, transfer of power, freely rotating asynchronous machine.

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Section: Introductionmentioning

confidence: 99%