Potential impact of high temperature superconducting cables on grid reliability and available transfer capacity: power flow simulation results

Ettedgui, Emile; Grijalva, Santiago; Silberglitt, Richard; Wakefield, C.

doi:10.1109/pesw.2002.984976

Cited by 6 publications

(2 citation statements)

References 7 publications

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“…In this aspect HTS cables will be more economic to construct than upgrading the conventional cables rating, which in some cases is not an option, given that conduits have limited diameters. For these reasons, HTS cables become a more competitive and attractive solution where this was not an option before [2,10].…”

Section: B Potential Benefits Of Hts Cablesmentioning

confidence: 99%

Performance analysis of HTS cables with variable load demand

Al-Khalidi¹,

Hadbah

Kalam

2011

2011 IEEE PES Innovative Smart Grid Technologies

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Currently, most of the transmission line infrastructure are being considered for an overhaul due to aging, detrition and overloaded. In light of this, the authors believe it is a good time for investing in a new technology so that the network can truly meet most of the challenges.High Temperature Superconductive (HTS) cable has a unique characteristic of low impedance to current flow. Unlike conventional power cables, HTS cable offers higher power transfer with minimum losses and more compact design of power applications yet better power flow absorption in the networks at the same voltage levels.In attempts to closely study the effect of HTS cable on power networks, several pilot projects have been carried out around the world. Promising results are achieved in terms of cable capacity and reliability. However, the big challenge of this technology is the high cost of superconductive materials in addition to the cost associated with cooling the cable, which is required at its normal operation temperature (-208ºC for present HTS cables). A new cable was developed by Ultera, utilises the cryogenic electrical insulator, together with high-reliable cable cooling technology that aims at a long service life, have significantly reduced the cost of HTS cable technology. The future will witness further reduction in the cost of HTS cable, certainly when industry scale production commences. This paper will present the technology in HTS cable and its anticipated effects on power transmission networks.For the last few decades power transmission for long distance was only possible with extra high voltage. However the transmission network required huge investment in high voltage equipment and switch-gear, yet it came with big electrical transmission losses. Fast growing cities and deregulation of the electrical sector in many countries around the world resulted in overwhelming demand for more power [1]. So far, the focus of the Australian electricity market has been narrowed onto the generation part of the power network, directing much of power investment into the new way of generation and renewable energy technology. This leaves the transmission part of the network with the burden of ageing and overloading to face reliability challenges in spite of this HTS cables have the potential for increasing power transmission capacity. Therefore, by transferring a larger amount of generated power that normally is lost in conventional power transmission cables, less generation is then required for the existing load [2]. Subsequent section of this paper describes in detail the obtained results from the load flow analysis performed on the hybrid sub-model, where four lengths This work was supported in part by Energy Safe Victoria. H. Al-Khalidi is with Sp-Ausnet, of HTS cable are employed in conjunction with the conventional Cross Linked Polyethylene (XLPE) cable. The employment enabled a comparison to be drawn on the performance and impact of the HTS cable on a local Victorian distribution company Citipower network. West Melbourne Terminati...

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Section: B Potential Benefits Of Hts Cablesmentioning

confidence: 99%

Performance analysis of HTS cables with variable load demand

Al-Khalidi¹,

Hadbah

Kalam

2011

2011 IEEE PES Innovative Smart Grid Technologies

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“…The metropolises generally belong to categories A+, A and B, and the load density is always greater than 6 MW km −2 [1]. However, many existing transmission lines have limitations for meeting the growing need of power transmission [2][3][4][5]. Increasing the voltage level of the transmission line is a conventional method to achieve urban power expansion.…”

Section: Introductionmentioning

confidence: 99%

Feasibility study of high temperature superconducting cables for distribution power grids in metropolises

Yang

Jin

et al. 2019

Supercond. Sci. Technol.

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High Temperature Superconducting (HTS) cables have numerous advantages in comparison with conventional power cables, such as high power density and low power losses, so they have great potential in enhancing the transmission capacity and improving the quality of power grids. In this work, we studied various cases to evaluate the feasibility of replacing conventional cables with HTS cables in metropolitan distribution networks. These cases represent three principal strategies. The first, HTS cables are applied at the same or lower voltage levels with the same transmission capacity, named as "equal capacity replacement". The second, considering the increasing power demands we demonstrate how HTS cables can benefit the power grids with expanded capacity (expanded capacity replacement). The third, we consider the case of unequal routes from the perspective of saving land resources (unequal routing replacement). In this paper, we introduce the methods and results of this study and give some preliminary conclusive remarks.

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