Performance Analysis of WSCC 9-Bus System Integrated with Photovoltaic under Load Increment Condition

The integration of renewable energy sources is pivotal for the modernization of power systems. This paper presents a comprehensive performance analysis of the Western Systems Coordinating Council (WSCC) 9-bus system integrated with photovoltaic (PV) under conditions of load increment. The study aims to evaluate the dynamic behavior and stability of the system, highlighting the effects of increased load demand on the integrated system’s performance. Using a combination of simulation tools and analytical methods, we model the WSCC 9-bus system with integrated PV to assess various performance metrics. The analysis includes the examination of voltage profiles and active and reactive power flow under normal and increased load scenarios. The authors’ results indicate that the integration of PV significantly enhances the system's ability to maintain stable voltage levels, even under substantial load increments. However, the effectiveness of these integrations is highly dependent on the appropriate sizing and placement of the PV within the system. This study provides valuable insights into the operational benefits and challenges of incorporating renewable energy solutions into existing power systems. In the future, it underscores the importance of strategic planning in the deployment of PV to optimize system performance. The findings contribute to the ongoing efforts in achieving a more resilient and sustainable power grid, capable of accommodating higher levels of renewable energy penetration while ensuring reliability. This WSCC-9 bus system is simulated in MATLAB 2021b version.