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Fang Zheng Peng
Fang Zheng Peng is the Director, Energy GRID Institute and a RK Mellon Endowed Chair Professor of Electrical and Computer Engineering in the University of Pittsburgh, U.S. Earlier, he was a Distinguished Professor of Engineering at the Center for Advanced Power Systems, Florida State University, U.S. His primary research area is power electronics, covering the development of Z-source inverters and multilevel inverters for STATCOM applications to improve power flow capability. Education background Peng received the B.S. degree in electrical engineering from Wuhan University, China, in 1983 and the M.S. and Ph.D. degrees both in electrical engineering from the Nagaoka University of Technology, Japan, in 1987 and 1990, respectively. Research contributions Peng is credited with developing the digital Z-source converter, which can protect the power system in a short period of time of 5 microseconds. The significance of the research lies in the fact that the switching speed is 1 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States asserts sovereignty over five Territories of the United States, major island territories and United States Minor Outlying Islands, various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's List of countries and dependencies by area, third-largest land area and List of countries and dependencies by population, third-largest population, exceeding 340 million. Its three Metropolitan statistical areas by population, largest metropolitan areas are New York metropolitan area, New York, Greater Los Angeles, Los Angel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Doctor Of Philosophy
A Doctor of Philosophy (PhD, DPhil; or ) is a terminal degree that usually denotes the highest level of academic achievement in a given discipline and is awarded following a course of Postgraduate education, graduate study and original research. The name of the degree is most often abbreviated PhD (or, at times, as Ph.D. in North American English, North America), pronounced as three separate letters ( ). The University of Oxford uses the alternative abbreviation "DPhil". PhDs are awarded for programs across the whole breadth of academic fields. Since it is an earned research degree, those studying for a PhD are required to produce original research that expands the boundaries of knowledge, normally in the form of a Thesis, dissertation, and, in some cases, defend their work before a panel of other experts in the field. In many fields, the completion of a PhD is typically required for employment as a university professor, researcher, or scientist. Definition In the context o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Academy Of Inventors
The National Academy of Inventors (NAI) is a US non-profit organization dedicated to encouraging inventors in academia, following the model of the National Academies of the United States. It was founded at the University of South Florida in 2010. Starting in 2012, the NAI has inducted 757 Fellows into the organization. Fellows must be named as an inventor on at least one US patent and are selected by the NAI Fellows Committee. The NAI also includes colleges and universities as institutional members, beginning with 9 such institutions in 2012; it now has over 200, including 30 outside the United States.. Since 2013, the National Academy of Inventors and the Intellectual Property Owners Association have released an annual report listing the top 100 universities by the number of US patents. The University of California has topped the list each year. The NAI has held a yearly national conference since 2011. In 2017, US Representative Dennis A. Ross Dennis Alan Ross (born ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE William E
The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office in New York City and an operations center in Piscataway, New Jersey. The IEEE was formed in 1963 as an amalgamation of the American Institute of Electrical Engineers and the Institute of Radio Engineers. History The IEEE traces its founding to 1884 and the American Institute of Electrical Engineers. In 1912, the rival Institute of Radio Engineers was formed. Although the AIEE was initially larger, the IRE attracted more students and was larger by the mid-1950s. The AIEE and IRE merged in 1963. The IEEE is headquartered in New York City, but most business is done at the IEEE Operations Center in Piscataway, New Jersey, opened in 1975. The Australian Section of the IEEE existed between 1972 and 1985, after which it split into state- and te ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Institute Of Electrical And Electronics Engineers
The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office in New York City and an operations center in Piscataway, New Jersey. The IEEE was formed in 1963 as an amalgamation of the American Institute of Electrical Engineers and the Institute of Radio Engineers. History The IEEE traces its founding to 1884 and the American Institute of Electrical Engineers. In 1912, the rival Institute of Radio Engineers was formed. Although the AIEE was initially larger, the IRE attracted more students and was larger by the mid-1950s. The AIEE and IRE merged in 1963. The IEEE is headquartered in New York City, but most business is done at the IEEE Operations Center in Piscataway, New Jersey, opened in 1975. The Australian Section of the IEEE existed between 1972 and 1985, after which it split into state- ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lists Of IEEE Fellows
, the Institute of Electrical and Electronics Engineers (IEEE) has 7,236 members designated Fellow, each of whom is associated with at least one of the 41 societies under the IEEE. The Fellow grade of membership is the highest level of membership, and cannot be applied for directly by the member – instead the candidate must be nominated by others. This grade of membership is conferred by the IEEE board of directors in recognition of a high level of demonstrated extraordinary accomplishment. * IEEE Aerospace and Electronic Systems Society, Aerospace and Electronic Systems Society – List of fellows of IEEE Aerospace and Electronic Systems Society, List of fellows * IEEE Antennas & Propagation Society, Antennas & Propagation Society – List of fellows of IEEE Antennas & Propagation Society, List of fellows * IEEE Broadcast Technology Society – List of fellows of IEEE Broadcast Technology Society, List of fellows * IEEE Circuits and Systems Society, Circuits and Systems Society ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digital Signal Processing
Digital signal processing (DSP) is the use of digital processing, such as by computers or more specialized digital signal processors, to perform a wide variety of signal processing operations. The digital signals processed in this manner are a sequence of numbers that represent Sampling (signal processing), samples of a continuous variable in a domain such as time, space, or frequency. In digital electronics, a digital signal is represented as a pulse train, which is typically generated by the switching of a transistor. Digital signal processing and analog signal processing are subfields of signal processing. DSP applications include Audio signal processing, audio and speech processing, sonar, radar and other sensor array processing, spectral density estimation, statistical signal processing, digital image processing, data compression, video coding, audio coding, image compression, signal processing for telecommunications, control systems, biomedical engineering, and seismology ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wide-bandgap Semiconductor
Wide-bandgap semiconductors (also known as WBG semiconductors or WBGSs) are semiconductor materials which have a larger band gap than conventional semiconductors. Conventional semiconductors like silicon and selenium have a bandgap in the range of 0.7 – 1.5 electronvolt (eV), whereas wide-bandgap materials have bandgaps in the range above 2 eV. Generally, wide-bandgap semiconductors have electronic properties which fall in between those of conventional semiconductors and insulators. Wide-bandgap semiconductors permit devices to operate at much higher voltages, frequencies, and temperatures than conventional semiconductor materials like silicon and gallium arsenide. They are the key component used to make short-wavelength (green-UV) LEDs or lasers, and are also used in certain radio frequency applications, notably military radars. Their intrinsic qualities make them suitable for a wide range of other applications, and they are one of the leading contenders ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Phase-locked Loop
A phase-locked loop or phase lock loop (PLL) is a control system that generates an output signal whose phase is fixed relative to the phase of an input signal. Keeping the input and output phase in lockstep also implies keeping the input and output frequencies the same, thus a phase-locked loop can also track an input frequency. Furthermore, by incorporating a frequency divider, a PLL can generate a stable frequency that is a multiple of the input frequency. These properties are used for clock synchronization, demodulation, frequency synthesis, clock multipliers, and signal recovery from a noisy communication channel. Since 1969, a single integrated circuit can provide a complete PLL building block, and nowadays have output frequencies from a fraction of a hertz up to many gigahertz. Thus, PLLs are widely employed in radio, telecommunications, computers (e.g. to distribute precisely timed clock signals in microprocessors), grid-tie inverters (electronic power converters used ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IEEE Xplore
IEEE Xplore (stylized as IEEE ''Xplore'') digital library is a research database for discovery and access to journal articles, conference proceedings, technical standards, and related materials on computer science, electrical engineering and electronics, and allied fields. It contains material published mainly by the Institute of Electrical and Electronics Engineers (IEEE) and other partner publishers. IEEE Xplore provides web access to more than 5 million documents from publications in computer science, electrical engineering, electronics and allied fields. Its documents and other materials comprise more than 300 peer-reviewed journals, more than 1,900 global conferences, more than 11,000 technical standards, almost 5,000 ebooks, and over 500 online courses. Approximately 20,000 new documents are added each month. Anyone can search IEEE Xplore and find bibliographic records and abstracts for its contents, while access to full-text documents may require an individual or institution ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Flexible AC Transmission System
In electrical engineering, a flexible alternating current transmission system (FACTS) is a family of power-electronic based devices designed for use on an alternating current (AC) transmission system to improve and control power flow and support voltage. FACTS devices are alternatives to traditional electric grid solutions and improvements, where building additional transmission lines or substation is not economically or logistically viable. In general, FACTS devices improve power and voltage in three different ways: shunt compensation of voltage (replacing the function of capacitors or inductors), series compensation of impedance (replacing series capacitors) or phase-angle compensation (replacing generator droop-control or phase-shifting transformers). While other traditional equipment can accomplish all of this, FACTS devices utilize power electronics that are fast enough to switch sub-cycle opposed to seconds or minutes. Most FACTS devices are also dynamic and can suppo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wildfires In The United States
Wildfires can happen in many places in the United States, especially during droughts, but are most common in the Western United States and Florida. They may be triggered naturally, most commonly by lightning, or by human activity like unextinguished smoking materials, faulty electrical equipment, overheating automobiles, or arson. Fire management policy favored aggressive wildfire suppression starting in the early 20th century. In the 21st century, higher temperature and droughts driven by global warming have become more of a concern, and there has been increased advocacy for controlled burns and other measures to prevent fuel from accumulating in wild areas that can create more intense, larger, and difficult-to-control fires. Firefighters are generally employed by governments, including municipal and county fire departments, regional Mutual aid (emergency services), mutual aid organizations, and state agencies like the California Department of Forestry and Fire Protection an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
