High-Power Converters and AC Drives by Bin Wu, Mehdi Narimani
By Bin Wu, Mehdi Narimani
A complete reference of the most recent advancements in MV force know-how within the sector of energy converter topologies
This re-creation displays the hot technological developments within the MV force undefined, similar to complex multilevel converters and force configurations. It comprises 3 new chapters, keep watch over of Synchronous Motor Drives, Transformerless MV Drives, and Matrix Converter Fed Drives. moreover, there are greatly revised chapters on Multilevel Voltage resource Inverters and Voltage resource Inverter-Fed Drives. This ebook contains a systematic research on quite a few high-power multilevel converters, illustrates very important ideas with simulations and experiments, introduces quite a few megawatt drives produced by means of global best force brands, and addresses sensible difficulties and their mitigations equipment. This new edition:
- Provides an in-depth dialogue and research of varied keep watch over schemes for the MV synchronous motor drives
- Examines new applied sciences constructed to dispose of the isolation transformer within the MV drives
- Discusses the working precept and modulation schemes of matrix converter (MC) topology and multi-module cascaded matrix converters (CMCs) for MV drives, and their program in advertisement MV drives
Bin Wu is a Professor and Senior NSERC/Rockwell Automation business examine Chair in strength Electronics and electrical Drives at Ryerson collage, Canada. he's a fellow of Institute of electric and Electronics Engineers (IEEE), Engineering Institute of Canada (EIC), and Canadian Academy of Engineering (CAE). Dr. Wu has released greater than four hundred papers and holds greater than 30 granted/pending US/European patents. He co-authored a number of books together with energy Conversion and keep watch over of Wind power structures and version Predictive regulate of Wind power Conversion platforms (both through Wiley-IEEE Press).
Mehdi Narimani is a Postdoctoral examine go together with the dept of electric and desktop Engineering at Ryerson collage, Canada, and Rockwell Automation Canada. he's a senior member of IEEE. Dr. Narimani is author/co-author of greater than 50 technical papers and 4 US/European patents (issued/pending review). His present examine pursuits contain energy conversion, excessive energy converters, regulate of energy electronics, and renewable power systems.
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Extra info for High-Power Converters and AC Drives
2-3 Six-pulse diode rectifier with a capacitive load. 2 v vab vac vbc vca vba Six-Pulse Diode Rectifier vcb vab 41 vac Vd 0 ✬t 2✜ ✜ ia ✬t 0 ib ✬t 0 ic ✬t 0 id D1, D2 ON D1, D6 ON ✬t 2✜ 0 Discontinuous current operation of the six-pulse diode rectifier. 2-4 voltage across the line inductance Ls becomes zero, and id reaches its peak value Ip. When t > 2, vab is lower than Vd, and Ls starts to release its stored energy to the load through D1 and D6. Both diodes remain on until t = 3, at which id falls to zero and the energy stored in Ls is completely discharged.
During interval I, vab is higher than the other two line-to-line voltages. Diodes D1 and D6 are forward-biased and thus turned on. The dc voltage vd is equal to vab, and the line current ia equals vab/Rd. During interval II, D1 and D2 conduct, and ia = vac/Rd. Similarly, the waveform of ia in the negative half-cycle can be obtained. The other two line currents, ib and ic, have the same waveform as ia, but lag ia by 2/3 and 4/3, respectively. The dc voltage vd contains six pulses (humps) per cycle of the supply frequency.
An effective approach to reducing the line current THD is, therefore, to remove these dominant harmonics from the system. This can be achieved by using multipulse rectifiers. 3 SERIES-TYPE MULTIPULSE DIODE RECTIFIERS In this section, the configuration of 12-, 18-, and 24-pulse series-type rectifiers is introduced. The THD and PF performance of these rectifiers are investigated through simulation and experiments. 1 12-Pulse Series-Type Diode Rectifier (1) Rectifier Configuration. 3-1 shows the typical configuration of a 12-pulse series-type diode rectifier.