首页|Optimal Planning of Transmission Network for Evacuation of Power from High Capacity Generators in Thermal Power Stations Replacing Lower Capacity Units

Optimal Planning of Transmission Network for Evacuation of Power from High Capacity Generators in Thermal Power Stations Replacing Lower Capacity Units

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The optimal planning of the transmission network becomes more challenging whenever a larger capacity-generating unit replaces the aged lower capacity-generating units at power-generating stations. This paper presents optimal planning for the transmission network to evacuate power from a newly proposed supercritical unit of 660 MW and an existing 210 MW unit. The proposed 660 MW unit will be installed in the vacant space after the decommissioning and dismantling of four aged generating units (2*50 MW and 2*120 MW). The proposed transmission network planning considered the construction of new 400 kV and 220 kV lines, as well as the reconfiguration of the existing switchyard at the thermal power station. This planning also considered the construction of LILO circuits for 400 kV and 220 kV lines and the installation of ICT infrastructure according to the technical feasibility of the five proposed alternatives. The loading of the existing and newly planned lines is kept within prescribed limits to ensure the system's reliability under N-1 contingency conditions. The load flow study evaluates the real and reactive losses, charging MVAR, and shunt MVAR for the interconnected lines. Moreover, the simulation studies validate the technical and economic aspects to fulfill the planning criteria for N-1 contingency analysis.

Transmission expansion planningPower evacuationLoad flow studyTechno-economicalContingency analysisReliability

Rajeev Kumar Chauhan、Mohan Manohar Dhoke、Sanjay Kumar Maurya、Durg Singh Chauhan

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Department of Electrical Engineering, Gyan Ganga Institute of Technology & Sciences, Jabalpur, MP, India

Madhya Pradesh Power Transmission Company Limited, Jabalpur, MP, India

Department of Electrical Engineering, GLA University, Mathura, UP, India

2025

Journal of The Institution of Engineers (India), Series B. Electrical eingineering, electronics and telecommunication engineering, computer engineering