“…Meanwhile, parallel topology suits high power application reasonably. Equation (2) shows that the ripples in the output voltage is composed of infinite number of harmonics, which their frequencies are multiple of pulse number. The amplitudes of these harmonics are (1/k) 2 times the amplitude of the first harmonic, where k is equal to m/6.…”
Section: A: Output Side Of Mpdrmentioning
confidence: 99%
“…More-Electric Aircraft (MEA) approach investigates transmitting and distributing the on-board electric energy via a DC distribution system. This approach offers significant reduction in the weight, the size and the losses, while increasing the levels of the transmitted power and improving the system regulation [1][2][3]. MPDRs are the promising candidate for implementing the front end converters for such DC distribution system [4,5].…”
This article analyzes thoroughly the performance of the Multi-Pulse Diode Rectifiers (MPDRs) regarding the quality of input/output voltage and currents. Two possible arrangements of MPDRs are investigated: series and parallel. The impact of the DC side connection on the performance of the MPDRs regarding the operation parameters and rectifier indices are comprehensively examined. Detailed analytical formulas are advised to identify clearly the key variables that control the operation of MPDRs. Moreover, comprehensive simulation results are presented to quantify the performance and validate the analytical analysis. Test-rig is set up to recognize the promising arrangement of MPDRs. Significant correlation is there between simulation and practical results. The analytical results are presented for aircraft systems (400Hz), and power grid systems (60Hz). This is to study the impact of voltage and frequency levels on the topology type of MPDRs. In general, each topology shows merits and have limitations.
“…Meanwhile, parallel topology suits high power application reasonably. Equation (2) shows that the ripples in the output voltage is composed of infinite number of harmonics, which their frequencies are multiple of pulse number. The amplitudes of these harmonics are (1/k) 2 times the amplitude of the first harmonic, where k is equal to m/6.…”
Section: A: Output Side Of Mpdrmentioning
confidence: 99%
“…More-Electric Aircraft (MEA) approach investigates transmitting and distributing the on-board electric energy via a DC distribution system. This approach offers significant reduction in the weight, the size and the losses, while increasing the levels of the transmitted power and improving the system regulation [1][2][3]. MPDRs are the promising candidate for implementing the front end converters for such DC distribution system [4,5].…”
This article analyzes thoroughly the performance of the Multi-Pulse Diode Rectifiers (MPDRs) regarding the quality of input/output voltage and currents. Two possible arrangements of MPDRs are investigated: series and parallel. The impact of the DC side connection on the performance of the MPDRs regarding the operation parameters and rectifier indices are comprehensively examined. Detailed analytical formulas are advised to identify clearly the key variables that control the operation of MPDRs. Moreover, comprehensive simulation results are presented to quantify the performance and validate the analytical analysis. Test-rig is set up to recognize the promising arrangement of MPDRs. Significant correlation is there between simulation and practical results. The analytical results are presented for aircraft systems (400Hz), and power grid systems (60Hz). This is to study the impact of voltage and frequency levels on the topology type of MPDRs. In general, each topology shows merits and have limitations.
“…For decades there has been an ongoing trend toward more electric aircraft (MEA) like the Boeing 787 or Airbus A380 (see [1], [2], [3]); ]); recently, the trend has even included all-electric aircraft (AEA). Electrically driven systems such as ice protection, environmental control system (ECS), brakes, or primary flight control system actuators have been used instead of their conventional counterparts [4].…”
This review paper summarizes state-of-the-art energy management methods applied to electrical systems of large aircraft. An electrical load management based on fixed priorities of the loads is considered a conventional implementation as applied in today's aircraft systems. It can cut and reconnect loads depending on their importance. The advantages and disadvantages of such a system are presented. Further implementations are depicted that are able to eliminate certain drawbacks of such a typical load management. Most promising is the exploitation of so-called slow responding loads which can be handled like an electrical storage. The optimization potential on future energy management functions is finally discussed and conclusions are drawn.
“…A number of factors encouraged this trend (AbdElhafez & Forsyth, 2009;Cross et al, 2002;Jones, 1999;Glennon, 1998;Maldonado et al, 1996Maldonado et al, , 1997Maldonado et al, , 1999Mallov et al, 2000;Quigely, 1993;Worth, 1990) :…”
Section: Distribution Systemsmentioning
confidence: 99%
“…SDEPDS was proposed to overcome the problems of CEPDS (AbdElhafez & Forsyth;2009;Cross et al, 2002;Glennon, 1998;Maldonado et al, 1996Maldonado et al, , 1997Maldonado et al, , 1999Mallov et al, 2000;Worth, 1990) . The SDEPDS as shown in Figure 3 has a large number of Power Distribution Centres (PDCs).…”
Section: Semi-distributed Electrical Power Distribution System (Sdepds)mentioning
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