Articles tagged with Power Systems
Scientists from ITMO University developed a novel WPT system that maintains up to 80% transfer efficiency across 20 centimeters, making it suitable for commercial applications. The system uses spherical dielectric resonators and a higher-order resonant frequency mode to reduce power losses.
Eftekharnejad's research will investigate the impacts of data intrusion on phasor measurement units (PMU) devices and propose mitigation strategies for power grid security. The study aims to identify critical components targeted by cyberattacks and develop methods to mitigate cascading blackouts.
Researchers at North Carolina State University developed a new technique for creating low-cost, high-efficiency power converters for embedded systems. The prototypes achieved 95% efficiency and 50-cent component costs, outperforming existing market options.
A Johns Hopkins University analysis finds that climate change will make cities like New York and Philadelphia more susceptible to blackouts caused by future hurricanes. The team predicts a 50% increase in power outages in these cities, with Miami and New Orleans expected to see a 30% increase.
Researchers from the University of Surrey and Ben-Gurion University in Israel have developed a new method to detect the elusive Majorana particle, potentially leading to the creation of topological Q-Bits. This breakthrough could significantly enhance the power of quantum computers, breaking the barriers on scaling up computation.
Wind farms can worsen oscillations in power grids if sited incorrectly. Researchers developed algorithms that match control efforts between wind farms and energy storage facilities to mitigate these effects, restoring stable grid behavior. This approach is crucial for the increasing integration of wind energy into the US power grid.
The Journal of Modern Power Systems and Clean Energy presents top-level academic achievements by international researchers and engineers. The partnership aims to improve communication among power systems researchers and bring their important topics to an international audience.
NASA has awarded a $100,000 grant to Penn State researcher Michael V. Paul for developing non-radioisotope power systems. The project aims to explore sunless solar system missions using metal-combustion engines, which could enable low-cost planetary exploration without relying on radioisotope power sources.
The National Institute of Standards and Technology (NIST) has developed test methods to evaluate the reliability of wireless alarm beacons for firefighters and emergency responders. The tests found that even weak signals can cause delays or failures, making it essential to ensure these devices operate reliably in realistic conditions.
Researchers have developed a wireless power system that can power ventricular assist devices without a cord, reducing the risk of infection and improving patient quality of life. The system uses inductive power and has been shown to be efficient over medium distances, allowing patients to be free from cords for short periods.
PSERC is investigating innovations in network architectures and planning approaches to achieve sustainable energy systems with high penetrations of renewable resources. The future grid will be more complex, heterogeneous, and dynamic due to the variability of renewable energy production.
Researchers from North Carolina State University have developed an approach to create reliable models of large power systems using Synchrophasor technology, enabling real-time monitoring and prediction of blackouts. The approach uses high-resolution power-system measurements to capture the dynamics of clusters and their connections, he...
A study published in Chaos found that traditional topological models, which rely on abstract network connections, are less accurate than physics-based models when assessing the vulnerability of the US electric grid. The researchers conclude that the grid's unpredictability makes it difficult to identify potential attack points.
A study published in Physical Review E found that a loss of just 2% of US power grid substations can cause catastrophic failure. Researchers identified high-load transmission substations as critical points, emphasizing the need for increased redundancy and distributed generation.
The Eastern Interconnection Phasor Project provides real-time system-wide data to utilities and transmission operators, potentially preventing cascading loss of power. The project uses satellite-based time clocks and sophisticated signal processing to enable more accurate monitoring and analysis.
Researchers at Virginia Tech have developed a high-power semiconductor switch called the Emitter Turn-off (ETO) Thyristor, suitable for fast and dynamic voltage support in the nation's congested power grid. The ETO switch offers fast switching speed, rugged turn-off capacity, and voltage control, reducing energy storage elements and size.