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A Study of TRM and ATC Determination for Electricity Market Restructuring  

이효상 (한양대 공대 전기공학과)
최진규 (한양대 공대 전기공학과)
신동준 (한양대 공대 전기공학과)
김진오 (한양대 공대 전기공학과)
Publication Information
The Transactions of the Korean Institute of Electrical Engineers A / v.53, no.3, 2004 , pp. 129-134 More about this Journal
Abstract
The Available Transfer Capability (ATC) is defined as the measure of the transfer capability remaining in the physical transmission network for further commercial activity above already committed uses. The ATC determination s related with Total Transfer Capability (TTC) and two reliability margins-Transmission Reliability Capability (TRM) and Capacity Benefit Margin(CBM) The TRM is the component of ATC that accounts for uncertainties and safety margins. Also the TRM is the amount of transmission capability necessary to ensure that the interconnected network is secure under a reasonable range of uncertainties in system conditions. The CBM is the translation of generator capacity reserve margin determined by the Load Serving Entities. This paper describes a method for determining the TTC and TRM to calculate the ATC in the Bulk power system (HL II). TTC and TRM are calculated using Power Transfer Distribution Factor (PTDF). PTDF is implemented to find generation quantifies without violating system security and to identify the most limiting facilities in determining the network’s TTC. Reactive power is also considered to more accurate TTC calculation. TRM is calculated by alternative cases. CBM is calculated by LOLE. This paper compares ATC and TRM using suggested PTDF with using CPF. The method is illustrated using the IEEE 24 bus RTS (MRTS) in case study.
Keywords
Available transfer capability; total transfer capability; transmission reliability margin; capacity benefit margin; Dower transfer distribution factor;
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  • Reference
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