A novel three-level adaptive hysteresis band modulation strategy for single-phase inverters is presented. It is shown that the total harmonic current distortion of the new strategy closely approximates that of the off-line precalculated harmonic minimised PWM switching angle solution sets. It is shown that the three-level adaptive hysteresis band strategy can be defined using a modulation process possessing both pulse-width and pulse-position modulation. Two strategies are presented to determine the switching angles in one quarter of the fundamental period of the PWM and the advantages of each method are discussed using a digital signal processor implementation. Both simulation and experimental results for the three-level adaptive hysteresis band PWM strategy are presented to confirm the theoretical analysis.
References
-
-
1)
-
S.R. Bowes ,
A. Midoun
.
New PWM switching strategy for micro processorcontrolled inverters.
IEE Proc. B
,
4 ,
237 -
254
-
2)
-
Rahman, M.A., Quaicoe, J.E., Choudhury, M.A.: `An optimum modulation strategy forinverter operation', PESC Conference Record, 1986, p. 410–416.
-
3)
-
S.R. Bowes
.
New sinusoidal pulse-width modulated inverter.
Proc. IEE
,
11 ,
1279 -
1285
-
4)
-
S.R. Bowes ,
A. Midoun
.
Suboptimal switching strategies for micro processor-controlledPWM Inverter drives.
IEE Proc. B
,
3 ,
133 -
148
-
5)
-
G. Buja ,
G. Indri
.
Optimal PWM for feeding AC motors.
IEEE Trans.
,
1 ,
34 -
42
-
6)
-
R.S. Lai ,
K.D.T. Ngo
.
A PWM method for reduction of switching loss in a full-bridge inverter.
IEEE Trans.
,
3 ,
326 -
332
-
7)
-
M.A. Rahman ,
J.E. Quaicoe ,
M.A. Choudhury
.
Performance analysis of deltamodulated PWM inverters.
IEEE Trans.
,
3 ,
227 -
232
-
8)
-
Rahman, M.A., Quaicoe, J.E., Choudhury, M.A.: `A comparative study of delta andsine pulse width modulated inverters', EPE Conference Record, 1985, 1, p. 163–168.
-
9)
-
P.D. Ziogas
.
The delta modulation technique in static PWM inverters.
IEEE Trans.
,
2 ,
199 -
204
-
10)
-
S.R. Bowes ,
A. Midoun
.
Micro processor implementation of new optimal PWMswitching strategies.
IEE Proc. B
,
2 ,
1 -
112
-
11)
-
Ghiara, T., Marchesoni, M., Puglisi, L., Sciutto, G.: `A modular approach to converterdesign for high power AC drives', EPE Conference Record, 1991, 4, p. 477–482.
-
12)
-
A. Schonung ,
H. Stemmler
.
Static frequency changers with subharmonic control in conjunction withreversible variable speed a.c drives.
Brown Boveri Rev.
,
555 -
577
-
13)
-
S.R. Bowes
.
Novel real-time harmonic minimised PWM control for drives and staticpower converters.
IEEE Trans.
,
2 ,
256 -
262
-
14)
-
Deib, D.A., Hill, H.W.: `The advantages of harmonic-distortion minimisation overtraditional harmonic-elimination techniques', PESC Conference Record, 1993, p. 1048–1054.
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