Impact of open access power procurement on steady-state and dynamic performance of transmission networks
摘要
The advent of open access in power systems has enabled the procurement of cheaper electricity from diverse sources on the national grid, including increasingly cost-effective renewable energy sources such as solar farms. While this regime promotes economic efficiency and market competition, it also presents significant challenges to the operation and control of transmission systems. This research paper presents a case study analyzing the impacts of inter- and intra-utility power transfers on both the steady-state and dynamic performance of utility transmission networks. The study shows that importing large amounts of inexpensive power from neighboring generation utilities can cause abnormal steady-state conditions and dynamic performance issues within the transmission system. Key findings include potential instability in voltage levels, uneven load distribution, and difficulties in maintaining system frequency within acceptable limits. The paper emphasizes the need for strategic investments in advanced monitoring and control systems, infrastructure upgrades, and improved regulatory mechanisms to mitigate these effects. Recommendations for enhancing system stability and performance include deploying advanced voltage regulators, improving dynamic stability controls, and conducting comprehensive power flow analyses. The results highlight the importance of proactive planning and coordination among utilities to ensure reliable network operation amid increased open-access and variable power sources.