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Singlephase Zsource PWM ACAC converters
Singlephase Zsource PWM ACAC converters,10.1109/LPEL.2005.860453,IEEE Power Electronics Letters,Xu Peng Fang,Zhao Ming Qian,Fang Zheng Peng
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Singlephase Zsource PWM ACAC converters
(
Citations: 26
)
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Xu Peng Fang
,
Zhao Ming Qian
,
Fang Zheng Peng
The letter proposes a new family of simple topologies of singlephase PWM acac converters with a minimal number of switches: voltagefed Zsource converter and currentfed Zsource converter. By PWM dutyratio control, they become "solidstate transformers" with a continuously variable turns ratio. All the proposed acac converters in this paper employ only two switches. Compared to the existing PWM acac converter circuits, they have unique features: providing a larger range of output ac voltage with buckboost, reversing or maintaining phase angle, reducing inrush and harmonic current, and improving reliability. The operating principle and
control method
of the proposed topologies are presented. Analysis, simulation, and experimental results are given using the voltagefed Zsource acac converter as an example. The analysis can be easily extended to other converters of the proposed family. The proposed converters could be used in voltage regulation, power regulation, and so on.
Journal:
IEEE Power Electronics Letters
, vol. 3, no. 4, pp. 121124, 2005
DOI:
10.1109/LPEL.2005.860453
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Citation Context
(21)
...The quasiZsource acac converter can output either bucked or boosted, either inphase or outof phase output voltage [
13
]...
...Applying the voltseconds balance on two inductors L1 and L2 [
13
], the voltage transfer gain can be derived in Table I. Moreover, for further analysis, the capacitor voltage stress, inductor current stress and switch stress equations are also derived by using the equivalent circuit mode...
Qin Lei
,
et al.
Four quadrant voltage sag/swell compensation with interphase quasiZs...
...The Zsource ac/ac converters focus on singlephase topologies [21]–[
23
] and threephase topologies [22], [24]...
...In applications where only voltage regulation is needed, the family of singlephase Zsource ac/ac converters proposed in [21]–[
23
] has a number of merits, such as providing a larger range of output voltages with the buck–boost mode, reducing inrush, and harmonic current...
...Since the switching frequency is much higher than the ac source (or line) frequency, the requirements for the inductors and capacitors should be low [
23
]...
MinhKhai Nguyen
,
et al.
A SinglePhase ZSource Buck–Boost Matrix Converter
...The Zsource ac–ac converters focus on singlephase topologies [
15
], [16] and threephase topologies [39]...
...Traditional singlephase Zsource PWM ac–ac converters proposed in [
15
] and [16] have the following features: the output voltage can be buckedboosted and both inphase/outofphase with the input voltage...
...However, the conventional Zsource PWM ac–ac converters in [
15
] have a significant drawback: in that the input voltage and output voltage does not share the same ground, thus the feature that the output voltage reverses or maintains its phase angle relative to the input voltage is not supported well...
...Another drawback is that the input current of the conventional singlephase Zsource PWM ac–ac converters in [
15
] and [16] is operated in the discontinuous current mode (DCM)...
...Fig. 1 shows the conventional singlephase Zsource ac–ac converter in [
15
] and [16] with the input and output not sharing the ground, and operating in DCM...
...Fig. 1. Conventional singlephase Zsource ac–ac converter topology in [
15
] and [16] with discontinuous input current and without sharing the ground...
...The output voltage gain has features that have been reported previously in [
15
] and [16]...
...Table I shows the voltage and current equations in the ideal case (r =0Ω )of the conventional singlephase Zsource ac–ac converter presented in [
15
] and [16], and the proposed singlephase quasiZsource ac–ac converter...
...AC–AC CONVERTER IN [
15
] AND [16] AND THE PROPOSED SINGLEPHASE...
...In order to verify the advantages of the proposed singlephase quasiZsource ac–ac converter, the PSIM simulation is used in comparison with the conventional singlephase Zsource ac– ac converter presented in [
15
]...
...The input voltage was 84 Vrm s/60 Hz. In the simulation, the parasitic resistances of L1 and L2 were set to zero (r =0Ω ). Table II provides a list of the parameters used in the simulation of the conventional converter in Fig. 1 [
15
] and the proposed converter in Fig. 2...
...SIMULATION PARAMETERS OF THE CONVENTIONAL CONVERTER IN FIG. 1 [
15
]...
...conventional singlephase Zsource ac–ac converter with the same condition, as shown in Table II. Fig. 8 shows the input current of the conventional converter in Fig. 1 [
15
] and the proposed converter in Fig. 2, when D =0 .25 .F ig. 9s hows the input current of the conventional converter in Fig. 1 [15] and the proposed converter in Fig. 2, when D =0 .7...
...conventional singlephase Zsource ac–ac converter with the same condition, as shown in Table II. Fig. 8 shows the input current of the conventional converter in Fig. 1 [15] and the proposed converter in Fig. 2, when D =0 .25 .F ig. 9s hows the input current of the conventional converter in Fig. 1 [
15
] and the proposed converter in Fig. 2, when D =0 .7...
...Table III provides the simulation results for the THDi of the input current for the conventional singlephase Zsource ac–ac converter in Fig. 1 [
15
] and the proposed singlephase quasiZsource ac–ac converter in Fig. 2, when D =0 .25 and 0.7...
...In addition, the waveform of the input current in the proposed converter is more sinusoidal than that in the conventional converter presented in [
15
]...
...Fig. 8. Simulation result for the input current based on a load R and D =0 .25 for (a) conventional converter in Fig. 1 [
15
] and (b) proposed converter in Fig. 2. (a) Ii =1 0.4 Arms , THDi = 75.14%...
...Fig. 9. Simulation result for the input current based on a load R and D =0 .7 for (a) conventional converter in Fig. 1 [
15
] and (b) proposed converter in Fig. 2. (a) Ii =4 .3 Arms , THDi = 150.02%...
...IN [
15
] AND THE PROPOSED SINGLEPHASE QUASIZSOURCE AC–AC...
MinhKhai Nguyen
,
et al.
SinglePhase AC–AC Converter Based on QuasiZSource Topology
...Traditional singlephase Zsource PWM ACAC converters proposed in [4], [
5
] have the following features: the output voltage can be buckedboosted and both inphase/outofphase with the input voltage...
...However, the conventional Zsource PWM ACAC converters in [
5
] have a significant drawback: in that the input voltage and output voltage does not share the same ground, thus the feature that the output voltage reverses or maintains its phase angle relative to the input voltage is not supported well...
...Another drawback is that the input current of the conventional singlephase Zsource PWM ACAC converters in [4] and [
5
] is operated in the discontinuous current mode (DCM)...
MinhKhai Nguyen
,
et al.
Singlephase quasiZsource ACAC converter with safecommutation stra...
...In applications, where only voltage regulation is need, the family of singlephase Zsource acac converters proposed in [9,
10
] has merits such as providing a larger range of output voltage with buckboost mode, reducing inrush and harmonic current...
...Since the switching frequency is much higher than the ac source (or line) frequency, the inductor and capacitor requirement should be low [
10
]...
MinhKhai Nguyen
,
et al.
SinglePhase ZSource BuckBoost Matrix Converter
References
(13)
Singlephase ac/ac converter based on halfbridge NPC topology
(
Citations: 3
)
Borren Lin
,
Tsungyu Yang
,
T. C. Wei
Conference:
IEEE International Symposium on Circuits and Systems  ISCAS
, pp. 340343, 2003
A direct AC/AC converter based on currentsource converter modules
(
Citations: 14
)
Mehrdad Kazerani
Journal:
IEEE Transactions on Power Electronics  IEEE TRANS POWER ELECT
, vol. 18, no. 5, pp. 11681175, 2003
Implementation of a singlephase AC/AC converter based on neutralpointclamped topology
(
Citations: 2
)
BorRen Lin
,
TaChang Wei
Journal:
IEEE Transactions on Aerospace and Electronic Systems  IEEE TRANS AEROSP ELECTRON SY
, vol. 39, no. 2, pp. 625634, 2003
Improved modification of the singleswitch ACAC converter for induction heating applications
(
Citations: 6
)
A. Shenkman
,
B. Axelrod
,
Y. Berkovich
Journal:
Iee Proceedingselectric Power Applications  IEE PROCELECTR POWER APPL
, vol. 151, no. 1, 2004
Implementation of a singlephase threeleg AC∕AC converter with neutralpoint diodeclamped scheme
(
Citations: 8
)
B.R. Lin
,
D.J. Chen
Journal:
Iee Proceedingselectric Power Applications  IEE PROCELECTR POWER APPL
, vol. 149, no. 6, 2002
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Citations
(26)
High frequency transformer isolated Zsource inverters
Shuai Jiang
,
Dong Cao
,
Fang Z. Peng
Conference:
Applied Power Electronics Conference and Exposition Annual IEEE Conference  APEC
, pp. 442449, 2011
Single Phase Matrix Converter as an ‘all silicon solution’
P. Deivasundari
,
V. Jamuna
Conference:
International Conference on Electrical Energy Systems  ICEES
, 2011
Four quadrant voltage sag/swell compensation with interphase quasiZsource ACAC topology
Qin Lei
,
Fang Z. Peng
Conference:
Applied Power Electronics Conference and Exposition Annual IEEE Conference  APEC
, pp. 20132019, 2011
A SinglePhase ZSource Buck–Boost Matrix Converter
(
Citations: 3
)
MinhKhai Nguyen
,
YoungGook Jung
,
YoungCheol Lim
,
YoungMin Kim
Journal:
IEEE Transactions on Power Electronics  IEEE TRANS POWER ELECT
, vol. 25, no. 2, pp. 453462, 2010
SinglePhase AC–AC Converter Based on QuasiZSource Topology
(
Citations: 2
)
MinhKhai Nguyen
,
YoungGook Jung
,
YoungCheol Lim
Journal:
IEEE Transactions on Power Electronics  IEEE TRANS POWER ELECT
, vol. 25, no. 8, pp. 22002210, 2010