Sensitivity analysis of critical clearing time in power systems with high penetration of power electronic devices
Peer-Reviewed Publication
Updates every hour. Last Updated: 24-Apr-2025 18:08 ET (24-Apr-2025 22:08 GMT/UTC)
The CCT sensitivity calculation method proposed in this study provides a new tool for stability analysis in power systems with a high proportion of power electronic devices. By considering the effects of current limiting and control switching, as well as scenarios where stability boundaries are controlled by periodic orbits (POs), the method quantifies the impact of various parameters on system stability and offers guidance for adjusting inverter control parameters. Future research could further refine the CCT calculation method and integrate CCT sensitivity into optimization models to enhance system stability through improved inverter control strategies.
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Key findings
• This study observed a decreasing global burden of silicosis. However, the trends differed across countries and regions. In addition, the silicosis age-standardized incidence rate (ASIR) and age-standardized disability-adjusted life years (DALYs) rate (ASDR) were higher in males.
What is known and what is new?
• Previous studies have reported various health metrics of silicosis in different countries and regions worldwide.
• This cross-sectional study provides the most up-to-date estimates of the incidence, number of deaths, and DALYs resulting from silicosis and their temporal trends based on data from 204 countries and regions, with significant differences by sex, region, country, age, and sociodemographic index. In addition, the global ASIR, age-standardized mortality rate, and ASDR of silicosis were projected for the next 30 years.
What is the implication, and what should change now?
• Silicosis continues to pose a public health issue, and it is essential to enhance health interventions in certain regions to reduce the damage inflicted by this condition.
A recent study has unveiled the genetic blueprint behind flowering time in olive trees, a crucial trait for fruit production that is increasingly under threat from climate change.