© The Institution of Engineering and Technology
A novel soft-switched inverter topology in which three mutually coupled inductors at a time are involved in the resonance process is proposed. By the introduction of magnetic coupling between three resonant inductors, the zero-voltage instants for the inverter can be generated by one auxiliary switch. Also, the resonant energy can be recycled, and the maximum voltage stress on the auxiliary circuit diode components is confined to the DC-link clamp voltage level. The DC link can be clamped to 1.1–1.3 times the DC-source value. This is unlike the soft-switched inverter in which two mutually coupled inductors are at a time are involved in a resonance process , wherein the clamping diode experiences voltage stress of the order of 11 per unit when clamping the DC-link voltage at 1.1 per unit. The proposed inverter also provides pulse-width modulated operation. An analysis of this novel quasi-resonant DC-link inverter topology is presented to reveal its soft-switching characteristics. Simulation and laboratory experiments are performed to validate the analysis.
References
-
-
1)
-
K. Wang ,
Y. Jiang ,
S. Dudovsky ,
G. Hau ,
D. Boroyevich ,
F.C. Lee
.
Novel dc-rail soft switching three-phase voltage source inverter.
IEEE Trans Ind. Appl.
,
509 -
516
-
2)
-
S. Chen ,
T.A. Lipo
.
A novel soft switched PWM inverter for AC motor drives.
IEEE Trans. Power Electron.
,
653 -
659
-
3)
-
Jung, , Cho, G.: `Novel type soft switching PWM converter using a new parallel resonant DC link', IEEE-IAS Conf., 1991, p. 241–247.
-
4)
-
L. Malesani ,
P. Tenti ,
P. Tomasin ,
V. Toigo
.
High efficiency quasiresonant dc link three-phase power inverter for full-range PWM.
IEEE Trans. Ind. Appl.
,
141 -
148
-
5)
-
S.Y.R. Hui ,
S. Gogani ,
J. Zhang
.
Analysis of a quasi-resonant circuit for soft-switched inverters.
IEEE Trans. Power Electron.
,
106 -
114
-
6)
-
Jafar, J.J., Fernandes, B.G.: `A quasi-resonant DC-link PWM inverter for induction motor drive', In IEEE-IAS Annual Conf. Rec., 1999, p. 1997–2002.
-
7)
-
J.J. Jafar ,
B.G. Fernandes
.
A new quasi-resonant DC-link PWM inverter using single switch for soft switching.
IEEE Trans. Power Electron.
-
8)
-
D.M. Divan ,
L. Malesani ,
P. Tenti ,
V. Toigo
.
Asynchronised resonant dc link converter for soft switched PWM.
IEEE Trans. Ind. Appl.
,
940 -
948
-
9)
-
Merterns, A., Divan, D.M.: `A high frequency resonant dc link inverter using IGBTs', IPEC Tokyo, 1990, Japan, p. 152–160.
-
10)
-
J. He ,
N. Mohan
.
Parallel resonant dc link circuit – a novel zero switching loss topology with minimum voltage stresses.
IEEE Trans. Power Electron.
,
687 -
694
-
11)
-
Jafar, J.J., Fernandes, B.G.: `A novel quasi-resonant DC-link PWM inverter for induction motor drive', In IEEE-PESC Conf. Rec., 1999, p. 482–487.
-
12)
-
J.W. Choi ,
S.K. Sul
.
Resonant link bidirectional power conversion – Part-I: Resonant circuit.
IEEE Trans. Power Electron.
,
479 -
484
-
13)
-
Divan, D.M.: `The resonant dc link inverter – a new concept in static power conversion', IEEE-IAS Annual Conf. Rec., 1986, p. 648–656.
-
14)
-
Divan, D.M., Skibinski, G.: `Zero switching loss inverters for high power applications', IEEE-IAS Annual Conf. Rec., 1987, p. 627–634.
-
15)
-
Lai, J.S., Bose, B.K.: `High frequency quasi-resonant DC voltage notching inverter for AC motor drives', Proc. IEEE Conf., 1990, p. 1202–1207.
-
16)
-
G. Vassilios ,
P.D. Ziogas
.
An optimum modulation strategy for a novel notch commutated three phase PWM inverter.
IEEE Trans. Ind. Appl.
,
52 -
61
-
17)
-
J. He ,
N. Mohan ,
B. Wold
.
Zero voltage switching PWM inverter for high frequency DC-AC power conversion.
IEEE Trans. Ind. Appl..
,
959 -
968
http://iet.metastore.ingenta.com/content/journals/10.1049/iet-epa_20050539
Related content
content/journals/10.1049/iet-epa_20050539
pub_keyword,iet_inspecKeyword,pub_concept
6
6