... a j N f −τ 0 )+m(t) (8) 20 Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation 12 An ... Ultra Wideband Communications: Novel Trends – System, Architecture and Implementation 16 Green, E. & Roy, S. (2003). System Architectures for High-rate Ult...
Ngày tải lên: 29/06/2014, 13:20
... the longitudinal, transverse, and vertical directions, and the structure deterministically designed. 5. Using the loads and structure configuration, ground line reactions are calculated and used to accomplish ... real-world exposure of the structural support system. OHTLs are tens of yards wide and miles long and usually extend over many widely variant microtopographical and mic...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (1)
... a matter of experience, and Ohm’s law. There are many examples of disturbance data in books such as The BMI Handbook of Power Signatures, Second Edition , and the Dranetz Field Handbook for Power Quality ... absence of standards, several manufacturers have developed proprietary ‘‘flicker’’ meters. In recent years, an effort has been made to standardize the definition of ‘‘flicker,’’ and to...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (2)
... Distribution Systems 20 Power System Loads Raymond R. Shoults and Larry D. Swift 21 Distribution System Modeling and Analysis William H. Kersting 22 Power System Operation and Control George L. Clark and ... Handbook, Second Edition, Jerry C. Whitaker The Engineering Handbook, Third Edition, Richard C. Dorf The Handbook of Formulas and Tables for Signal Processing, Alexander...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (3)
... Plains (Kansas, Oklahoma, and Texas), the winds are strongest in the spring (March and April) and weakest in the summer (July and August). Utilities here are summer peaking, and hence need the most ... 1-4 Land Rights The wind is a free, clean, and inexhaustible energy source. It has served humankind well for many centuries by propelling ships and driving wind turbines to grind...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (4)
... result, the compressor and the expander must operate at the same time and must have the same air mass flow rate. In the case of a CAES plant, the compressor and the expander can be sized independently ... Group, LLC. systems are quiet and non-polluting, and can be installed near load centers and existing suburban substations. These have round-trip AC–AC efficiencies in the range of...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (5)
... PV systems to supply a portion of their total customer demand. Some of these systems have been residential and commercial rooftop systems and other systems have been larger ground-mounted systems. ... Systems Stand-alone PV systems are used when it is impractical to connect to the utility grid. Common stand- alone systems include PV-powered fans, water pumping systems, portable highway si...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (6)
... brakes, and other systems. 7. Cooling water systems, for supply to the generator air coolers, generator and turbine bearings, and step-up transformer. 8. Fire detection and extinguishing systems. 9. ... angle acceleration during system fault conditions. [see Power System Stability and Control, Kundur (1994) and Section 2 of title Power System Stability and Control of this...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (7)
... these criteria, and the knowledge of the stator current and cooling system effectiveness, the manufacturer can project the motor component heating, and thus insulation life, and the efficiency ... torsional oscillation and to suppress harmonic variation in the magnetic waveform. In a motor, heavy bars and end connections are required in the pole face to minimize and withstand t...
Ngày tải lên: 21/03/2014, 12:11