Tài liệu Power Electronic Handbook P17 ppt

... various power quality events. The IEEE Emerald Book (IEEE Standard 1100-1999, IEEE Recommended Practice for Power and Grounding Electronic Equipment ) defines power quality as: The concept of powering ... to active power filters, because the term active power filters is misleading to either active filters for power or filters for active power. Therefore, this section takes the...

Ngày tải lên: 13/12/2013, 00:15

... PCU output power. When the PCU output power reaches a maximum level, the input resistance is fixed at the value that produces this level. Presumably when output power is a maximum, input power is ... maximum power from the array. This is done by incorporating maximum power- tracking circuitry into the PCU. Figure 18.4 shows the I – V characteristics of an array with the max...

Ngày tải lên: 13/12/2013, 00:15

... Phoenix, 1999, 1178. 39. Corzine, K. A. and Sudhoff, S. D., High state count power converters: an alternate direction in power electronics technology, SAE Trans. J. Aerospace, SAE paper number 981266 ... 5th European Conference on Power Electronics and Applications, Brighton, U.K., 1993, 134. 8. Seki, N. and Uchino, H., Converter configurations and switching frequency for a GTO reactive...

Ngày tải lên: 25/01/2014, 13:20

... (MCTs). Rectifiers, in general, are widely used in power electronics to rectify single-phase as well as three-phase voltages. DC power supplies used in computers, consumer electronics, and a host of other applications typically ... the same power capacity. The advantages of DC transmission over AC should not be misunderstood and DC should not be considered as a general substitute for AC...

Ngày tải lên: 25/01/2014, 13:20

... three-phase bridge (Fig. 3.3) converters. The cycloconverter is usually used for three-phase, high -power, low-speed synchronous motor drives and rarely employed for induction motor drives. 3.3

Ngày tải lên: 25/01/2014, 13:20

... LLC I Power Electronic Devices 1 Power Electronics Kaushik Rajashekara, Sohail Anwar, Vrej Barkhordarian, Alex Q. Huang Overview • Diodes • Schottky Diodes • Thyristors • Power Bipolar ... CRC Press LLC 1.5 Power Bipolar Junction Transistors Sohail Anwar Power bipolar junction transistors (BJTs) play a vital role in power circuits. Like most other power devices, p...

Ngày tải lên: 25/01/2014, 13:20

... Semiconductor Power Converter Conference, 1977. 2. Owen, H. A., Capel, A., and Ferrante, J. G., Simulation and analysis methods for sampled power electronic systems, in IEEE Power Electronics Specialists ... filter. References 1. Agrawal, J. P., Power Electronics Systems: Theory and Design, Prentice-Hall, Upper Saddle River, NJ, 2001, chap. 6. 2. Mohan, N., Undeland, T. M., and Robbi...

Ngày tải lên: 25/01/2014, 13:20

... for power electronics systems. Obviously, advances in raw processing power for personal computers as well as the rapid devel- opment of electronic design software have influenced the field of power ... the simulation of power electronics systems proved to be difficult from the outset, because power electronics circuits typically operate in a highly discontinuous mode, with power se...

Ngày tải lên: 13/12/2013, 00:15

... conductor loop. This fundamental principle has important consequences for parasitic coupling in electronic hardware, such as a noisy circuit on a printed circuit board of a computer. The problem ... (1791–1867) experimented with magnetic fields. He wound two coils on an iron ring. When one coil was powered from a battery, he noticed that a transient voltage developed on the second coil and,...

Ngày tải lên: 13/12/2013, 00:15

... electrical loads in the MEC power systems. As is described in Refs. 5 through 8, most of the future electic loads require power electronic controls. In future automobiles, power electronics will be used ... addition, power management strategy can help optimize the size of the generators and batteries [11]. Figure 21.5 shows an advanced aircraft power system architecture in which t...

Ngày tải lên: 13/12/2013, 00:15