power system state estimation using phasor measurement units

Ngày tải lên: 14/08/2014, 12:35

Ngày tải lên: 14/08/2014, 15:26

Ngày tải lên: 05/09/2013, 15:28

... reliability of the multi- state system [6-8] and optimizing the structure of the multi- state system [9-11]. The reliability of the power system will be analyzed by the multi -state system theory in ... Keywords- power system; multi -state system theory; reliability; universal ge nerating function I. I NTRODUCTION A power system composed of battery pack provides en ergy for other systems, ... the reliability of a power system. States and corresponding probabilities of the battery are defined. The reliability of the power system is estimated by the multi -state system theory. The results...

Ngày tải lên: 03/01/2014, 19:38

Ngày tải lên: 08/04/2014, 10:01

Ngày tải lên: 09/09/2013, 20:29

... that power system is the blood vessels and nerve cells of a ship. For a marine power system, both direct current (DC) and alternating current (AC)will be adopted, and the system consists of power ... emergency power station possesses an independent distribution system of its own. Should the main power station break down and should accordingly the power supply fail, the emergency power station ... network and electric load. There are two kinds of power stations on board, i. e. the main power station and the emergency power station. The main power station is equipped with main generating...

Ngày tải lên: 24/10/2013, 01:15

... t ng tr xỏcnh hng và công sut ca nó t l vi bình 152 CHNG7:POWERSYSTEMBLOCKSET Đ1.KHINIMCHUNG PowerSystemBlocksetcthitkcungcpchochỳngtacụngc hiu qu v tin limụ phng nhanhvdcỏc ... BâygichnmenuTool|InitialValueof State Variablesđhinthcác giátrkhiđucacácbintrngthái.Cácgiátrkhiđunàyđcđtđ btđusimulationtrngtháixáclp. Bâygitatínhcácbiudincakhônggiantrngtháicamôhìnhct7_1 bnghàm power2 sys.NhpdònglnhsauđâyvàocasMATLAB: [A,B,C,D,x0,states,inputs,outputs]= power2 sys(’ct7_1’); Hàm power2 systrvmôhìnhkhônggiantrngtháicamchtrong4 ma ... thng in.Thvinc anúchacỏcphntcbncamchinnhmỏybin ỏp,ngdõy,cỏcmỏyinvcỏcthitbintcụngsut.Giaodin hocungcpcỏcthnhphnc ahthngin.Cỏcthnhphnnydclu trongthvinpowerlib.mthvinnytcasMATLABtaỏnhlnh powerlib.KhinyMATLABmmtcaschacỏckhih thngconkhỏc nhau.Cỏchthngconnybaogm: ElectricalSources Elements PowerElectronics Machines Connectors Measuremets Extras Demos Tacúthmcỏchthngconnytoracỏccaschacỏckhim tacn copyvomụhỡnh.Mimtthnhphncbiudinbngmticon cbit. Đ2.MễHèNHHOMTMCHINNGIN ...

Ngày tải lên: 28/10/2013, 06:15

Ngày tải lên: 21/11/2013, 13:49

Ngày tải lên: 12/12/2013, 21:37

... observe-by-wire system. (a) (b) Fig. 2 The OBW system configuration, a forklift lifts loads to the third floor for stacking or storage. (a): forklift operation; (b): distance measurement using ... could complete his or her task three times without using the OBW system while she or he can complete her or his task five times with the OBW system shown in the fig. 3b. In particular, at point ... Fig. 3 The haptic interface is developed for the OBW system Fig. 4 The haptic interface is developed for the OBW system A fork system and working environment and control algorithm...

Ngày tải lên: 17/12/2013, 11:15

... observe-by-wire system. (a) (b) Fig. 2 The OBW system configuration, a forklift lifts loads to the third floor for stacking or storage. (a): forklift operation; (b): distance measurement using ... - Journal of Dynamic Systems, Measurement, and Control Vol. 128, Issue 3, pp. 532-542, September, 2006 [9] LORD Corporation, “LORD Corporation Perfects Steer-by-Wire System for Forklift Trucks,”http://www.lord.com/Default.aspx?tabid= 3638, ... could complete his or her task three times without using the OBW system while she or he can complete her or his task five times with the OBW system shown in the fig. 3b. In particular, at point...

Ngày tải lên: 23/12/2013, 00:15

Ngày tải lên: 01/01/2014, 21:14

... reliability analysis of power systems using the Generalized Stochastic Petri Nets (GSPN). The proposed modeling approach considers not only the most common failures of power system elements, i.e. ... just introduced consists in a powerful tool to model power systems. Phenomena like component failure, short-circuit, lightning, etc, are always present in real systems and occur randomly. Such ... consequences depending on the power system state. In conclusion, the reliability of protection schemes, understood as the union of dependability and security, and its dependency on the system operating conditions,...

Ngày tải lên: 03/01/2014, 19:35

Ngày tải lên: 03/01/2014, 19:37

... kV transmission line power system that energized by 33 kV system reduces the reliability of the system. Therefore, in order to improve the reliability of the 132 kV power systems, these lines ... the system will be increased if the 29 MW diesel power station is taken into account for Sulaimani-Erbil region. 3-As the outage of power plant greatly reduces the reliability of the power system, ... Sulaimani-Erbil Electrical Power System Reliability Evaluation Fig.8 shows the single line diagram of the 132 kV systems for Sulaimani-Erbil electrical power system. For the purpose of...

Ngày tải lên: 03/01/2014, 19:39

Ngày tải lên: 03/01/2014, 19:40

... current power systems began appearing throughout the United States. These power systems became interconnected to form what we know today as the three major power grids in the United States and ... fundamental terms used in today’s electric power systems based on this history. SYSTEM OVERVIEW Electric power systems are real-time energy delivery systems. Real time means that power is generated, transported, ... telecommunications systems to control the equip- ment located in substations, out on power lines, and the actual consumer sites. These tools enable power system operators to economically dispatch power, meet system...

Ngày tải lên: 18/02/2014, 22:20

... the expression “electric power system is somewhat incomplete, since a power system is essentially an energy conversion system. For this reason, the ex- pression power system is used in this ... Suitablefor Power SystemAnalysis 36 3.5 Python Scripting Language 39 Part II: Power System Analysis 4 Power Flow Analysis 61 4.1 Background 61 4.2 Taxonom y of Power Flow Problems 66 4.3 ClassicalPower ... that basic power system concepts are known by the reader. The level required for fully taking advantage of this book is that F. Milano: Power System Modelling and Scripting, Power Systems, pp....

Ngày tải lên: 18/02/2014, 22:20

... study, we assessed individual air pollution expo- sure at the home address using advanced state- of-the- art methods. By using a combination of GIS based dis- persion modelling a nd continuous monitoring ... 11:9 http://www.ehjournal.net/content/11/1/9 Page 4 of 11 METH O D O LOG Y Open Access Air pollution exposure estimation using dispersion modelling and continuous monitoring data in a prospective birth cohort study ... Bellander T, Berglind N, Gustavsson P, Jonson T, Nyberg F, Pershagen G, Jarup L: Using geographic information systems to assess individual historical exposure to air pollution from traffic and...

Ngày tải lên: 06/03/2014, 19:20