# Three-Dimensional Pulse Width Modulation Techniques for Three-Phase Four Leg Voltage Source Converters

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4 citations

##### References

123 citations

### "Three-Dimensional Pulse Width Modul..." refers methods in this paper

...There are fourteen non-zero space voltage vectors (NZSVV) and two zero space voltage vectors (ZSVV) as shown in Fig1 [11-13] The reference current obtained by (9) can be written with the space vector representation as follows: ref ref ref reff f f fi i i i j i k (09) The same representation can be given to the measured active filter current: f f f fi i i i j i k (10) The reference current is represented in space voltage vector as shown in Fig 2, the tip of the reference current reffi is located at the centre of a three dimensional cube, while the tip of the measured active filter current fi can be located in any cube of the eight small cubes as illustrated in Fig 3....

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...There are fourteen non-zero space voltage vectors (NZSVV) and two zero space voltage vectors (ZSVV) as shown in Fig1 [11-13]...

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115 citations

### "Three-Dimensional Pulse Width Modul..." refers background in this paper

...In Cartesian pqr coordinates, the system currents are defined in [8]....

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82 citations

### "Three-Dimensional Pulse Width Modul..." refers background in this paper

...The four hysteresis comparator controls has been considered as a simplest control strategy but it suffers from a high frequency operation; generally the PWM is interested for the feeding and the control of induction electrical machine [6], particularly the three dimensional hysteresis PWM techniques presented in [7] uses eight switching vectors among the existing sixteen switching vectors....

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25 citations

### "Three-Dimensional Pulse Width Modul..." refers background in this paper

...Although three-phase four-wire active filters have been introduced in the 1980’s, the development is still in its infancy and no experimental prototype has been put in operation outside the universities [4] and in work of [5]....

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20 citations

### "Three-Dimensional Pulse Width Modul..." refers methods in this paper

...To overcome this problem, the pqr theory need to preprocess the system voltages to be sinusoidal and balanced waveforms by using such as a PLL (phase locked loop) circuit [9], extracting only the forward-sequence component from the system voltages....

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...To overcome this problem, this paper proposes to use a PLL in the control loop [9]....

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