Optimization and Study of Grid Impact on Photovoltaic Installation — Connected 785 MVA Steam Turbine Power Plant for Industry

Increased solar integration as a variable renewable energy (VRE) brings many benefits and challenges, especially in typical industrial grids. This paper introduces a methodology to find the optimum installation and operational points for PV by considering several constraints such as generation limitation, spinning reserve, and steam demand to meet plant process operating requirements. In this paper, an analysis will be conducted to investigate the intermittent of renewable energy on the security and stability of the power system with several options for solar capacity. The modeling and simulation of S steam turbine generators and PV will be performed using PowerFactory Digsilent, a power system software that offers various solutions for power system analysis and simulation. Meanwhile the study of UCED is also carried out using solver to analyze actual power measurement data from power plants, based on the integration of variable renewables. The research findings indicate that the optimal installation of up to 50 MWp of solar panels can be achieved gradually, while considering constraints such as spinning reserve equivalent to the largest generator and the system’s ability to handle high-power equipment starting, if required.