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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Takano, A. |
| Copyright Year | 2008 |
| Description | Author affiliation: Numazu Nat. Coll. of Technol., Numazu (Takano, A.) |
| Abstract | This paper presents an excellent PWM method for power conversion circuits. The proposed method is called a vector frequency modulation (VFM). VFM does not belong to any conventional PWM methods. Although an idea of space voltage vectors is employed, any traditional equations to calculate the periods of the voltage vectors are not used. The voltage vectors are classified into two groups, zero vectors and non-zero ones. Instead of the complicated equations, a very simple algorithm is employed in VFM. One vector period is fixed and the zero vectors are distributed among the non-zero vectors in the ratio determined by the command voltage or frequency. The behavior of VFM is performed in software and any modulation-wave oscillators, comparators and up-down counters are not needed. At first, a reversible chopper is modulated by VFM and a 2 kW DC motor is driven by the chopper. The motor speed is regulated by modern control theory. Next, a three-phase inverter is modulated by VFM and a 2.2 kW induction motor is driven by the inverter. Experimental results are shown to prove that VFM is actually useful for power conversion circuits. |
| Starting Page | 787 |
| Ending Page | 792 |
| File Size | 402546 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781424424047 |
| DOI | 10.1109/PECON.2008.4762582 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-12-01 |
| Publisher Place | Malaysia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Frequency modulation Power conversion Circuits Pulse width modulation Voltage Equations Choppers DC motors Pulse width modulation inverters Software performance Inverter PWM Chopper |
| Content Type | Text |
| Resource Type | Article |
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