power line energy services midland tx

... experience in the areas of energy policy, national and regional energy planning, energy and environmental modelling, promotion of energy and environmental friendly technologies, energy management, decision ... the decision making for power sector developments Hydropower has historically been Chile’s single largest power source Droughts, however, have periodically curtailed hydropower production, causing ... government began in the 1990s to diversify its energy mix to become less reliant on hydropower, mainly by building natural gas-fired power plants [16] Chile’s energy mix relies mostly on oil (56%), secondly...

Ngày tải lên: 05/09/2013, 14:58

... the capacity is achieved SYSTEM DESIGN FOR POWER- LINE CHANNELS In this section, first we describe the overall structure of an LDPC coded DMT over power- line, and then perform LDPC code optimization ... International Symposium on Power- Line Communications (ISPLC 2006) REFERENCES ¨ ¸ [1] E Eleftheriou and S Olcer, “Low-density parity-check codes for digital subscriber lines,” in Proceedings of ... coded DMT system based on LDPC coding for parallel channels A numerical example for a typical power- line channel is also presented in this section Finally, Section concludes the paper BACKGROUND...

Ngày tải lên: 22/06/2014, 19:20

... algorithms for wide band impulse modulation based systems over power line channels,” in Proceedings of the 8th International Symposium on Power- Line Communications and Its Applications (ISPLC ’04), pp ... channel estimation for wide band impulse modulation over power line channels,” in Proceedings of the 8th International Symposium on Power- Line Communications and Its Applications (ISPLC ’04), pp ... Tonello, “Wirenet: an experimental system for in-house powerline communication,” in Proceed- [6] [7] [8] [9] ings of International Symposium on Power- Line Communications and Its Applications (ISPLC...

Ngày tải lên: 22/06/2014, 19:20

... “Secure and reliable wide-area power- line communication for soft-real-time applications within REMPLI,” in Proceedings of the 9th International Symposium on Power Line Communications and Its Applications ... Ferreira, “Automotive power- line communications: favourable topology for future automotive electronic trends,” in Proceedings of the 7th International Symposium on Power- Line Communications and ... n power line channels,” IEEE Journal on Selected Areas in Communications, vol 24, no 7, pp 1327–1338, 2006 [16] S Barmada, A Musolino, and M Raugi, “Innovative model for time-varying power line...

Ngày tải lên: 22/06/2014, 19:20

... one that costs minimum energy, and (ii) that the given throughput is the maximal throughput that is achieved respecting the energy constraint (5) From (5) and (8) this energy cost expresses L ... Seravalle, “Comparison of CDMA and OFDM techniques for downstream powerline communications on low voltage grid,” IEEE Transactions on Power Delivery, vol 18, no 4, pp 1104–1109, 2003 [3] J Cioffi, “A ... [7] M Crussi` re, J.-Y Baudais, and J.-F H´ lard, “adaptive linear e e precoded DMT as an efficient resource allocation scheme for power- line communications,” in Proceedings of IEEE Global Telecommunications...

Ngày tải lên: 22/06/2014, 19:20

... considering colored background noise for LV power lines and corona noise [19, 20] for HV power lines Moreover, in order to reduce the computational load of the linear predictive receiver, we apply reduced-state ... 100 200 300 400 500 600 700 800 900 1000 Frequency (kHz) 225 kV line 380 kV line 750 kV line 1050 kV line Figure 4: Corona noise power spectrum, shown in terms of the frequency response V ( f ... noise effects on broadband power line communications,” IEEE Transactions on Power Delivery, vol 20, no 2, part 1, pp 630– 637, 2005 [11] M G¨ tz, M Rapp, and K Dostert, Power line channel charo acteristics...

Ngày tải lên: 22/06/2014, 20:20

... alternative for PLC R Pighi and R Raheli present powerful sequence detectors for coded single-carrier PLC in their paper “Linear predictive detection for power line communications impaired by colored ... IEEE Communications Society Technical Committee on Power Line Communications He was General Chair of the 2005 International Symposium on Power Line Communications and Its Applications (2005 ISPLC), ... group The code optimization is formulated as an iterative linear program, which can be efficiently solved Applied to typical indoor power line channels, it is possible to closely approach capacity...

Ngày tải lên: 22/06/2014, 20:20

... TS 101 867 V1.1.1, “Powerline Telecommunications (PLT); Coexistence of Access and In-House Powerline Systems,” ETSI 2000 [2] H Philipps, “Performance measurements of power- line channels at high ... receiver are described Bit-rates obtained with the conventional synchronization scheme in indoor power- line scenarios are given in Section The proposed phase estimator and loop filter are defined in ... to 20 MHz Phase noise is accurately characterized by means of a power- law model [12, 13] It approximates Sφo ( f ) by a piecewise linear function whose slopes are in the range from −40 dB/decade...

Ngày tải lên: 22/06/2014, 20:20

... “Low-density parity-check coding for impulse noise correction on powerline channels,” in Proceedings of the 9th International Symposium on Power Line Communications and Its Applications (ISPLC ’05), pp ... “Performance analysis of OFDM systems for broadband power line communications under impulsive noise and multipath effects,” IEEE Transactions on Power Delivery, vol 20, no 2, part 1, pp 674–682, ... uniformly distributed in [0, 2π) With this channel, the received signal power is approximately 13 dB below transmitted signal power The Christine Hsu et al 100 1.2 10−1 10−2 0.8 BER Variance 1.4...

Ngày tải lên: 22/06/2014, 20:20

... Adaptive Fuzzy Equalizers for Power Line Communications POWER LINE COMMUNICATIONS IN LOW-VOLTAGE GRIDS: AN OVERVIEW Although not built for communication ... Honary, Power line communications: state of the art and future trends,” IEEE Communications Magazine, vol 41, no 4, pp 34–40, 2003 [2] J Abad, A Badenes, J Blasco, et al., “Extending the power line ... contributions at the international symposium on power line communications and its applications,” in Proc 5th International Symposium on Power Line Communications and Its Applications (ISPLC ’01),...

Ngày tải lên: 23/06/2014, 01:20

... implementation of the power line interference removal algorithm Chapter Power Line Interference Cancellation: Algorithm Design 2.1 Introduction As briefed in the previous chapter, power line interference ... differentiation on the overall performance Power/ freq (dB/Hz) Power/ freq (dB/Hz) 40 20 −20 100 200 Frequency (Hz) (a) 300 Power/ freq (dB/Hz) Chapter Power Line Interference Cancellation: Algorithm ... of samples n Discrete sample number p(n) Power line interference at time sample n P0 Initial settling time of the frequency estimator (s) pi (n) Power line interference in channel i P∞ Asymptotic...

Ngày tải lên: 09/09/2015, 08:12

... Circuit Powerline Channel Coupling Circuit Receiver FIGURE 1-3 A digital communication system for the power- line channel A coupling circuit is used to connect the communication system to the power- line ... technology 1.1 Power- Line Communications The power- line network is a large infrastructure covering most parts of the inhabited areas In Sweden the power is typically generated by, e.g., a power plant ... connected to the power- line network The deregulated market has forced the power utilities to explore new markets to find new business opportunities, which have increased the research in power- line communications...

Ngày tải lên: 20/10/2015, 16:10

... wind power conversion system With the trend going toward full-converter solutions for wind power applications, a lot of attention is given to reducing cost and improving the efficiency of the power ... heating uses a high frequency ac power supply and a capacitor is connected in shunt or series with the load to compensate reactive power because of low load power factor as shown in Fig 14(a) ... kVA prototype power supply for controllable frequency induction heating (a)Circuit diagram (b)Overview of the power supply cabinet installed in a test facility and overview of this power supply...

Ngày tải lên: 15/10/2013, 16:10

... strong wind power energy cannot be taken out and it is not efficient Figure (b) is a wind power conversion system with MERS that we are proposing in this paper The MERS can improve a power factor ... improve the output power and efficiency of a wind turbine system with a synchronous generator by applying magnetic energy recovery switch (MERS) to the power conversion system The wind power conversion ... Excitation power (p.u.) Output voltage Vdc (V) with MERS 100 w/o MERS 0 with MERS 0 Ohase current Iu (A) w/o MERS Output Power (p.u.) (a) xs = 0.73(p.u.) (a) Dc output voltage Excitation power (p.u.)...

Ngày tải lên: 15/10/2013, 16:11

... TAKAKU et al.: POWER SUPPLY FOR PULSED MAGNETS WITH MAGNETIC ENERGY RECOVERY CURRENT SWITCH 1797 TABLE II PARAMETERS OF MAGNETIC ENERGY RECOVERY TYPE MARX-GENERATOR magnetic energy stored in ... S3 are turned off, the energy which was stored in the inductor is charged in the capacitor and current decreases IV MAGNETIC ENERGY RECOVERY TYPE MARX-GENERATOR A Magnetic Energy Recovery Type ... the bi-directional magnetic energy recovery current switch (a) Current flowing in parallel (b) Load energy is absorbed by the capacitor (c) Off condition (d) Capacitor energy goes to load The current...

Ngày tải lên: 15/10/2013, 16:11

... International Power Electronics Conference, no 4, pp 102-103, April 2000 [10] J Narushima, K Inoue, T Takaku, T Isobe, T Kitahara, and R Shimada, "Application of magnetic energy recovery switch for power ... control switches for power factor correction," PCIM Europe, 2006 [12] S.-K Chung, "Phase-locked loop for grid-connected three-phase power conversion systems," IEE Proc.-Electr Power Appl., vol 147, ... Xplore Restrictions apply TABLE I SPECIFICATIONS OF EXPERIMENTAL CIRCUIT FOR POWER FLOW A1 CONTROL Transformer power rating Transformer voltage rating Transformer rated excitation current Inductor...

Ngày tải lên: 15/10/2013, 16:12

... connected in series to a DC power source parallel conduction mode as Fig 2(a) The magnetic energy is recovered from the electrostatic energy (2) where is the voltage of the power source and is the ... electrostatic energy stored in the capacitor when mode is (c) is equivalent to the magnetic is given by energy stored at the magnet when mode is (a), III MAGNET POWER SUPPLIES USING MERS Power supplies ... the inverter power supply can reduce the total size of capacitor To discuss about it, the energy supplied to the coil is divided between the energy consumed at the coil and the energy which makes...

Ngày tải lên: 15/10/2013, 16:12

... g/cm3 Energy: kJ = 737.56ft-lbf= 239.01 cal^ - 0.94783 Btu - 3.7251 X 10~4 hp hr - 2.7778 x 10-4 kWhr Specific energy: kJ/kg - 334.54 ft-lbf/lbm = 0.4299 Btu/lbm - 0.2388 cal/g Specific energy ... = 0.000128 Pa • sec The Prandtl number is dimensionless *Above the solid line the condensed phase is solid; below the line, it is liquid cCritical point Table 39.8 Thermophysical Properties ... A/7m Tb Tm Substance (kJ/kg) (K) (K) Acetaldehyde Acetic acid Acetone Acetylene Air Ammonia Aniline Benzene H-Butane Butanol Carbon dioxide Carbon disulfide Carbon monoxide Carbon tetrachloride...

Ngày tải lên: 26/12/2013, 01:18

... vapor; g = saturated vapor Rounded off from values of C M Tseng, T A Hamp, and E O Moeck, Atomic Energy of Canada Report AECL-5910, 1977 *The notation 1.0434.-3 signifies 1.0434 X 10~3 Table 39.19 ... 250 260 Substance 270 280 290 300 310 320 330 Acetic acid Acetone 2.05 2.07 4.54 Ammonia 4.48 Aniline Benzene rc-Butane 2.19 2.23 Butanol 2.13 2.17 Carbon tetrachloride 0.833 0.838 Chlorobenzene ... Thermal Conductivity (W/m • K) of Saturated Liquids 92 Substance Acetic acid Acetone Ammonia Aniline Benzene Butane Butanol Carbon tetrachloride Chlorobenzene m-Cresol Ethane Ethanol Ethyl acetate...

Ngày tải lên: 26/12/2013, 01:18

... generator and BER meter from the customer premise or CO ends Power Input Power: DC -36 to -72 VDC or AC 90 to 264VAC 47 to 63 Hz Line Power Cover full reach for G.shdsl standard span One pair, ... WorldDSL™ G.S Specifications SHDSL Interface Line Code: 16 Level Trellis coded PAM Line Data Rate: user selectable from 1-pair 192 kbps to 2.304 Mbps 2-pair 384 ... available) Protection: ITU-T K.20 and K.21 compliant Compliance: ITU-T G.991.2 E1 Interface 12/06 Line Code: HDB3 Data Rate: 64 kbps to 2048 kbps Operation: full or fractional Blocking: per 64 kbps...

Ngày tải lên: 17/01/2014, 10:20