A power inverter, inverter, or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC). The resulting AC frequency obtained depends on the particular device employed. Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC.
The DARPA Grand Challenge is a prize competition for American autonomous vehicles, funded by the Defense Advanced Research Projects Agency, the most prominent research organization of the United States Department of Defense. Congress has authorized DARPA to award cash prizes to further DARPA's mission to sponsor revolutionary, high-payoff research that bridges the gap between fundamental discoveries and military use. The initial DARPA Grand Challenge in 2004 was created to spur the development of technologies needed to create the first fully autonomous ground vehicles capable of completing a substantial off-road course within a limited time. The third event, the DARPA Urban Challenge in 2007, extended the initial Challenge to autonomous operation in a mock urban environment. The 2012 DARPA Robotics Challenge, focused on autonomous emergency-maintenance robots, and new Challenges are still being conceived. The DARPA Subterranean Challenge was tasked with building robotic teams to autonomously map, navigate, and search subterranean environments. Such teams could be useful in exploring hazardous areas and in search and rescue.
A solar inverter or photovoltaic (PV) inverter is a type of power inverter which converts the variable direct current (DC) output of a photovoltaic solar panel into a utility frequency alternating current (AC) that can be fed into a commercial electrical grid or used by a local, off-grid electrical network. It is a critical balance of system (BOS)–component in a photovoltaic system, allowing the use of ordinary AC-powered equipment. Solar power inverters have special functions adapted for use with photovoltaic arrays, including maximum power point tracking and anti-islanding protection.
XPRIZE Foundation is a non-profit organization that designs and hosts public competitions intended to encourage technological development. The XPRIZE mission is to bring about "radical breakthroughs for the benefit of humanity" through incentivized competition. It aims to motivate individuals, companies, and organizations to develop ideas and technologies.
A solar panel is a device that converts sunlight into electricity by using photovoltaic (PV) cells. PV cells are made of materials that produce excited electrons when exposed to light. The electrons flow through a circuit and produce direct current (DC) electricity, which can be used to power various devices or be stored in batteries. Solar panels are also known as solar cell panels, solar electric panels, or PV modules.
Martin Andrew Green is an Australian engineer and professor at the University of New South Wales who works on solar energy. He was awarded the 2021 Japan Prize for his achievements in the "Development of High-Efficiency Silicon Photovoltaic Devices". He is editor-in-chief of the academic journal Progress in Photovoltaics.
The Nuna 3 is a solar car developed by Nuon Solar Team form the Delft University of Technology in 2004-2005 for the 2005 World Solar Challenge.
The Office of Energy Efficiency and Renewable Energy (EERE) is an office within the United States Department of Energy. Formed from other energy agencies after the 1973 energy crisis, EERE is led by the Assistant Secretary of Energy Efficiency and Renewable Energy, who is appointed by the president of the United States and confirmed by the U.S. Senate. Alejandro Moreno currently leads the office as the Acting Assistant Secretary.
A solar car is a solar vehicle for use on public roads or race tracks. Solar vehicles are electric vehicles that use self-contained solar cells to provide full or partial power to the vehicle via sunlight. Solar vehicles typically contain a rechargeable battery to help regulate and store the energy from the solar cells and from regenerative braking. Some solar cars can be plugged into external power sources to supplement the power of sunlight used to charge their battery.
The Contender Asia was a reality-based television series that follows 16 Muay Thai middleweight fighters from 12 countries as they compete in a series of outdoor challenges and sanctioned matches. The series is a deviation from the original Contender series, which involved boxing. The winner received US$150,000 and bragging rights as "The Contender Champion".
The Google Science Fair was a worldwide online science competition sponsored by Google, Lego, Virgin Galactic, National Geographic and Scientific American. It was an annual event spanning the years 2011 through 2018.
MasterChef Canada is a Canadian competitive cooking reality show, part of the MasterChef franchise, open to amateur home cooks across Canada. It premiered on CTV on January 20, 2014, and has since aired its seventh season. The show stars three judges: Claudio Aprile, Michael Bonacini and Alvin Leung. The first seven seasons of the show was produced by Endemol Shine International and Proper Television.
Peter Sanders is a German computer scientist who works as a professor of computer science at the Karlsruhe Institute of Technology. His research concerns the design, analysis, and implementation of algorithms and data structures, and he is particularly known for his research on suffix sorting finding shortest paths in road networks.
American Fuzzy Lop (AFL), stylized in all lowercase as american fuzzy lop, is a free software fuzzer that employs genetic algorithms in order to efficiently increase code coverage of the test cases. So far it has detected dozens of significant software bugs in major free software projects, including X.Org Server, PHP, OpenSSL, pngcrush, bash, Firefox, BIND, Qt, and SQLite.
The 2016 Cyber Grand Challenge (CGC) was a challenge created by The Defense Advanced Research Projects Agency (DARPA) in order to develop automatic defense systems that can discover, prove, and correct software flaws in real-time.
Frede Blaabjerg is a Danish professor at Aalborg University. At Aalborg, he works in the section of Power Electronic Systems of the department of Energy Technology. Blaabjerg's research concerns the applications of power electronics, including adjustable-speed drives, microgrids, photovoltaic systems, and wind turbines. By the number of citations, he is the most cited author of several IEEE journals: IEEE Transactions on Power Electronics, IEEE Transactions on Industry Applications, IEEE Journal of Emerging and Selected Topics in Power Electronics.
Synchronverters or virtual synchronous generators are inverters which mimic synchronous generators (SG) to provide "synthetic inertia" for ancillary services in electric power systems. Inertia is a property of standard synchronous generators associated with the rotating physical mass of the system spinning at a frequency proportional to the electricity being generated. Inertia has implications towards grid stability as work is required to alter the kinetic energy of the spinning physical mass and therefore opposes changes in grid frequency. Inverter-based generation inherently lacks this property as the waveform is being created artificially via power electronics.
University of Nottingham Racing Team (UoNRT) is the University of Nottingham's student-run electric vehicle team. The team comprises two sub teams, namely Formula Student and Solar Challenge. The University of Nottingham also used to compete in the e-bike area, with its Power Electronics Machines and Control Research Group (PEMC) from the Faculty of Engineering. Working on new technologies they were awarded "best" EV at Formula Student UK 2021. The teams are currently developing a "Lighter, more efficient Formula Student car" and a 2-seater Solar Challenge car "designed around upcycled EV systems". The team relies on external sponsors to fund the development, manufacture and testing of the vehicle.
Edward Y. Chang is a computer scientist, academic, and author. He is an adjunct professor of Computer Science at Stanford University, and Visiting Chair Professor of Bioinformatics and Medical Engineering at Asia University, since 2019.
