Commenced in January 2007
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Edition: International
Paper Count: 2

transmission expansion planning Related Publications

2 Conversion of HVAC Lines into HVDC in Transmission Expansion Planning

Authors: Mario A. Rios, Juan P. Novoa

Abstract:

This paper presents a transmission planning methodology that considers the conversion of HVAC transmission lines to HVDC as an alternative of expansion of power systems, as a consequence of restrictions for the construction of new lines. The transmission expansion planning problem formulates an optimization problem that minimizes the total cost that includes the investment cost to convert lines from HVAC to HVDC and possible required reinforcements of the power system prior to the conversion. The costs analysis assesses the impact of the conversion on the reliability because transmission lines are out of service during the conversion work. The presented methodology is applied to a test system considering a planning a horizon of 10 years.

Keywords: HVAC, Cost Optimization, HVDC, transmission expansion planning, energy non supplied

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1 Transmission Expansion Planning with Economic Dispatch and N-1Constraints

Authors: N. Rugthaicharoencheep, A. Charlangsut, M. Boonthienthong

Abstract:

This paper proposes a mathematical model for transmission expansion employing optimization method with scenario analysis approach. Economic transmission planning, on the other hand, seeks investment opportunities so that network expansions can generate more economic benefits than the costs. This approach can be used as a decision model for building new transmission lines added to the existing transmission system minimizing costs of the entire system subject to various system’s constraints and consider of loss value of transmission system and N-1 checking. The results show that the proposed model is efficient to be applied for the larger scale of power system topology.

Keywords: Contingency, economic dispatch, scenario analysis, transmission expansion planning

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