Chương 7: Power system blockset
Chương 7: Power system blockset
... CHNG 7: POWER SYSTEM BLOCKSET §1.KHÁINIMCHUNG Power System Blockset đcthitkđcungcpchochúngtacôngc hiu ... thng đin.Thvinc anóchacácphntcbncamchđinnhmáybin áp,đngdây,cácmáyđinvàcácthitbđintcôngsut.Giaodinđ hocungcpcácthànhphnc ahthngđin.Cácthànhphnnàydclu trongthvinpowe...
Ngày tải lên: 28/10/2013, 06:15
power system stability and control chuong (7)
... convert electrical power to mechanical power; synchronous generators convert mechanical power to electrical power; and synchronous condensers supply only reactive power to stabilize system voltages. Synchronous ... rotor excitation winding is powered with DC current, adjusted to rated voltage, and transferred to voltage regulator control. It is then synchronized to the power syst...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (1)
... to record power quantity data while searching for power quality problems. For example, the author found a shortcut to the source of a disturbance affecting a wide area by using the power quantity ... Summary 33-8 Many power quality problems are caused by inadequate wiring or improper grounding. These problems can be detected by simple examination of the wiring and grounding systems. A...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (2)
... G. Karady IV 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 ... Edition Edited by James H. Harlow Electric Power Substations Engineering, Second Edition Edited by John D. McDonald Power Systems Edited by Leonard L. Grigsby Power Sys...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (3)
... than power producers. That is, it is easier to estimate the energy production for the next month or year than it is to estimate the power that will be produced at 4:00 PM next Tuesday. Wind power ... are summer peaking, and hence need the most power when winds are the lowest and the least power when winds are highest. The diurnal variation of wind power is thus a fairly good match...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (4)
... third stage, the DC electricity is converted in the power conditioning subsystem to electric utility-grade alternating current (AC). In the power section of the fuel cell, which contains the electrodes ... co-generation, fuel cell power plants are nearly twice as efficient as conventional power plants. Unlike large steam plants, the efficiency is not a function of the plant size for fue...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (5)
... total customer demand. Some of these systems have been residential and commercial rooftop systems and other systems have been larger ground-mounted systems. PV systems are generally classified as ... 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 signs, a...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (6)
... deviations of the machine, for damping power system dynamic oscillations. [see Power System Stability and Control, Kundur (1994) and Section 2 of title Power System Stability and Control of this ... voltage forcing is necessary to maintain transient stability of the power system during and immediately after system faults. Power system stabilizers are also applied to stat...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (8)
... Electric Company 6.1 Plant Auxiliary System 6-2 Selection of Auxiliary System Voltages . Auxiliary System Loads . Auxiliary System Power Sources . Auxiliary System Voltage Regulation Requirements 6.2 ... 120-V control systems which may be operated ungrounded for reliability reasons. An ungrounded system may be allowed to continue to operate with a single ground on the system. U...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (9)
... electric power system. The electrical services that are supported include generating capacity, energy supply, and the power delivery system. FERC requires six ancillary services, including system ... aircraft and mobile systems. Microturbines are typically defined as systems with an output power rating of between 10 kW up to a few hundred kilowatts. As shown in Fig. 7.4, these system...
Ngày tải lên: 21/03/2014, 12:11