Advanced Carrier Based Pulse Width Modulation in Asvmmetric Cascaded Multilevel Inverter
International Joumals of Engineering & Sciences IJENS
EDITORS& REVIEWERS
Dr. Lu Jiang
Xi'anJiaotongUniversity,China
MuhammadYasir Qadri
University
of Essex,UK
WijayanayakeMudalige Janaka Indrajith Wijayanayake
VictoriaUniversity,Australia
AhmadA liA l-Zubi
King SaudUniversity,Kingdomof SaudiArabia
Dr.GhossoonMohammedWaleedAl_Saadoon
Schoo/of Computer& Communication
Engineering,
Malaysia
Dr.SerefAykut
BitlisErenUniversity,Turkey
Dr HelmiZulhaidiMohd Shafri
UniversityPutra,Malaysia
Prof. Dr. Y. M; lssa
CairoUniversity,Egypt
Dr. B. B. Arora
DelhiCollegeof Engineering,
lndia
AdeniyiSundayOgunlaja
Universityof Technology,Nigeria
MohamedFirdhous
of Moratuwa,SriLanka
University
Totok R. Biyanto
Engineering
PhysicsDepartment
- FTI - ITSSurabaya,lndonesia
S. Habib Kazemi
LasbsUniversity,
lran
Ayhan Kapusuzoglu
HacettepeUniversity,Turkey
Dr NasirM Mirza
PIEAS,Pakistan
Dr. FalahAlsaqre
GulfUniversity,
Kingdomof Bahrain
a
International Joumals of Engineering & Sciences IJENS
Dr.P. Vasant
UniversityTechnologyPetornas,Malaysia
Dr. ShahanawajAhamad
King SaudUniversity,
Kingdomof SaudiArabia
Dr.GhossoonM. WateedAl-saadoon
Universityof Malaysia,Malaysia
Dr. Wahied Gharieb
KingSaudUniversity,
Kingdomof SaudiArabia
Dr. Engr. Yasser Fouad
GermanUniversityin Cairo,Egypt
Dr. KayedAbu Safieh
Hashe.mite University, Jordan
Dr. MohammadArif Kamal
KingFahadUniversityof Petroleum& Minerals,SaudiArabia
Kamran Khowaja
lsraUniversity,Pakistan
Dr. Nafis Ahmad
BUET,Bangladesh
MirzaHasanuzzaman
Sher-e-BangIa Agricultural University, BangIadesh
Dr QaisarMahmood
COMSAISlnstituteof lnformationTechnology,
Pakistan
Dr. T. Joseph SahayaAnand
TechnicalUniversityof Malaysia,Malaysia
Dr. ErdalAkyol
Pamukkale University,Turkey
Dr. Debojyoti Mitra
SirPadampatSinghaniaUniversity,
lndia
Prof. U.G.Jha
Kanpurlnstituteof Technology,
lndia
Dr.AbdelmalekZidouri
KFUPM,SaudiArabia
NEETESHGUPTA
TlT,Bhopal,India
lll
47
International Journal of Electrical & Computer SciencesIJECS-IJENS Vol: l0 No: 06
Advanced Carrier BasedPulseWidth Modulation
in Asvmmetric CascadedMultilevel Inverter
Bambang Sujanarko
towardDoctor
currently
Jember,
Dept.of Elect.Eng.,Universitas
(ITS)Surabaya,
Indonesia
Nopember
Sepuluh
in InstitutTeknologi
Mochamad Ashari
Mauridhi Hery Purnomo
OntosenoPenangsang
Soebagio
Dept.of Elect. Eng., Institut Teknologi SepuluhNopember (ITS) Surabaya,Indonesia
Abstract -This paper proposes a new scheme Pulse
Width Modulation (PWM) to overcome low performances
of conventional PWM conhol strategy in Cascaded
Multilevel Inverter (ACMLD. This scheme advance
conventional Carrier-Based PWM (CBPWM) using
triangle canier in different amplitudes. By this scheme
ACMLI can conhol by PWM that according to dc voltage
amplitude used and finally the Total Harmonics
Distortions (THD) can reduce to the settle standard.
Simulation using Matlab Simulink used to veriff the
performance and result simulation shown than this
proposedschemecan reachthe goals.
the ACMLI, there is a problems, that is its have low
power quality performance, so many method to adjust this
controller find in many papers in the last decade.
To solve this problem, this paper propose a new
schem'e,which namely Advance Pulse Width Modulations
(APWM). This schemeon behalf of PWM, but its not use
triangle carrier waveform in equal amplitude as like to in
the conventional PWM. The frequency and amplitude of
triangle modulation must be accordingto amplitude of DC
voltage on eachH-Bridges inverter .
Key word- asymmetric cascaded multilevel inverter,
multi carrier pulse width modulation, power quality, total
harmonic distortion.
CMLI proposed to solve all the problems of the
multilevel inverters as well as conventional multi pulse
(or PWIO inverters t5-71. CMLI eliminates the
excessively large number of bulky transformers required
by conventionalmulti pulse inverters,the clamping diodes
required by multilevel diode clamped inverters, and the
flying capacitors required by multilevel flying capacitor
inverters.
CMLI consists a series connection of multiple H'
bridge inverters. Each H-bridge inverter has the same
configuration as a tlpical single-phasefull-bridge inverter
[3-41. CMLI introduces the idea of using separateDC
sources to produce an AC voltage waveform. Each Hbridge inverter is connected to its own DC source. By
cascadingthe output voltage of each H-bridge inverter, a
stepped voltage waveform is produced [5-7]. If the
number of H-bridges is N, the voltage output is obtained
by summing the output voltage of bridges as shown in
equation (l). Fig. I shows configuration of CMLI on
single-phase.
I.
INTRODUCTION
The multilevel inverter [MLI] is a promising inverter
topology for high voltage and high power applications [].
This inverter synthesizes several different levels of DC
voltages to produce a staircase (stepped) that approaches
the pure sine waveform [3-9]. Its have high power quality
waveforms, lower voltage ratings of devices, lower
harmonic distortion, lower switching frequency and
losses,higher efficiency, reduction of dv/dt stressesand
gives the possibility of working with low speed
semiconductors if its comparison with the two-levels
inverters. Numerous of MLI topologies and modulation
techniqueshave been inhoduced and studied extensively,
but most popular MLI topology is Diode Clamp, Flying
Capacitor and CascadedMultilevel Inverter (CMLI). In
this paper we use a CMLI that consist ot some H-Bridge
inverters and with un-equal DC. Its also namely
Asymmetric CascadedNultilevel Inverter (ACMLI). Its
most implemented because this inverter more modular
and simple construction and have other advantages than
Diode clamp and flying capacitor [7].
There are many modulation techniques to conhol this
inverter, such as Selected Harmonics Elimination or
Optimized Harmonic Stepped-Waveform(OHSW), Space
Vector PWM (SVPWM) and Carrier-Based PWM
(CBPWM). Among thes modulation CBPWM is the most
used for multilevel inverter, brcause it have simple
logical and easy to implemented. But if CBPWM used in
U.
10E60G5353IJECSIJENS @ Decembq 2010 UENS
ACMLI
v,.l
ro
EDITORS& REVIEWERS
Dr. Lu Jiang
Xi'anJiaotongUniversity,China
MuhammadYasir Qadri
University
of Essex,UK
WijayanayakeMudalige Janaka Indrajith Wijayanayake
VictoriaUniversity,Australia
AhmadA liA l-Zubi
King SaudUniversity,Kingdomof SaudiArabia
Dr.GhossoonMohammedWaleedAl_Saadoon
Schoo/of Computer& Communication
Engineering,
Malaysia
Dr.SerefAykut
BitlisErenUniversity,Turkey
Dr HelmiZulhaidiMohd Shafri
UniversityPutra,Malaysia
Prof. Dr. Y. M; lssa
CairoUniversity,Egypt
Dr. B. B. Arora
DelhiCollegeof Engineering,
lndia
AdeniyiSundayOgunlaja
Universityof Technology,Nigeria
MohamedFirdhous
of Moratuwa,SriLanka
University
Totok R. Biyanto
Engineering
PhysicsDepartment
- FTI - ITSSurabaya,lndonesia
S. Habib Kazemi
LasbsUniversity,
lran
Ayhan Kapusuzoglu
HacettepeUniversity,Turkey
Dr NasirM Mirza
PIEAS,Pakistan
Dr. FalahAlsaqre
GulfUniversity,
Kingdomof Bahrain
a
International Joumals of Engineering & Sciences IJENS
Dr.P. Vasant
UniversityTechnologyPetornas,Malaysia
Dr. ShahanawajAhamad
King SaudUniversity,
Kingdomof SaudiArabia
Dr.GhossoonM. WateedAl-saadoon
Universityof Malaysia,Malaysia
Dr. Wahied Gharieb
KingSaudUniversity,
Kingdomof SaudiArabia
Dr. Engr. Yasser Fouad
GermanUniversityin Cairo,Egypt
Dr. KayedAbu Safieh
Hashe.mite University, Jordan
Dr. MohammadArif Kamal
KingFahadUniversityof Petroleum& Minerals,SaudiArabia
Kamran Khowaja
lsraUniversity,Pakistan
Dr. Nafis Ahmad
BUET,Bangladesh
MirzaHasanuzzaman
Sher-e-BangIa Agricultural University, BangIadesh
Dr QaisarMahmood
COMSAISlnstituteof lnformationTechnology,
Pakistan
Dr. T. Joseph SahayaAnand
TechnicalUniversityof Malaysia,Malaysia
Dr. ErdalAkyol
Pamukkale University,Turkey
Dr. Debojyoti Mitra
SirPadampatSinghaniaUniversity,
lndia
Prof. U.G.Jha
Kanpurlnstituteof Technology,
lndia
Dr.AbdelmalekZidouri
KFUPM,SaudiArabia
NEETESHGUPTA
TlT,Bhopal,India
lll
47
International Journal of Electrical & Computer SciencesIJECS-IJENS Vol: l0 No: 06
Advanced Carrier BasedPulseWidth Modulation
in Asvmmetric CascadedMultilevel Inverter
Bambang Sujanarko
towardDoctor
currently
Jember,
Dept.of Elect.Eng.,Universitas
(ITS)Surabaya,
Indonesia
Nopember
Sepuluh
in InstitutTeknologi
Mochamad Ashari
Mauridhi Hery Purnomo
OntosenoPenangsang
Soebagio
Dept.of Elect. Eng., Institut Teknologi SepuluhNopember (ITS) Surabaya,Indonesia
Abstract -This paper proposes a new scheme Pulse
Width Modulation (PWM) to overcome low performances
of conventional PWM conhol strategy in Cascaded
Multilevel Inverter (ACMLD. This scheme advance
conventional Carrier-Based PWM (CBPWM) using
triangle canier in different amplitudes. By this scheme
ACMLI can conhol by PWM that according to dc voltage
amplitude used and finally the Total Harmonics
Distortions (THD) can reduce to the settle standard.
Simulation using Matlab Simulink used to veriff the
performance and result simulation shown than this
proposedschemecan reachthe goals.
the ACMLI, there is a problems, that is its have low
power quality performance, so many method to adjust this
controller find in many papers in the last decade.
To solve this problem, this paper propose a new
schem'e,which namely Advance Pulse Width Modulations
(APWM). This schemeon behalf of PWM, but its not use
triangle carrier waveform in equal amplitude as like to in
the conventional PWM. The frequency and amplitude of
triangle modulation must be accordingto amplitude of DC
voltage on eachH-Bridges inverter .
Key word- asymmetric cascaded multilevel inverter,
multi carrier pulse width modulation, power quality, total
harmonic distortion.
CMLI proposed to solve all the problems of the
multilevel inverters as well as conventional multi pulse
(or PWIO inverters t5-71. CMLI eliminates the
excessively large number of bulky transformers required
by conventionalmulti pulse inverters,the clamping diodes
required by multilevel diode clamped inverters, and the
flying capacitors required by multilevel flying capacitor
inverters.
CMLI consists a series connection of multiple H'
bridge inverters. Each H-bridge inverter has the same
configuration as a tlpical single-phasefull-bridge inverter
[3-41. CMLI introduces the idea of using separateDC
sources to produce an AC voltage waveform. Each Hbridge inverter is connected to its own DC source. By
cascadingthe output voltage of each H-bridge inverter, a
stepped voltage waveform is produced [5-7]. If the
number of H-bridges is N, the voltage output is obtained
by summing the output voltage of bridges as shown in
equation (l). Fig. I shows configuration of CMLI on
single-phase.
I.
INTRODUCTION
The multilevel inverter [MLI] is a promising inverter
topology for high voltage and high power applications [].
This inverter synthesizes several different levels of DC
voltages to produce a staircase (stepped) that approaches
the pure sine waveform [3-9]. Its have high power quality
waveforms, lower voltage ratings of devices, lower
harmonic distortion, lower switching frequency and
losses,higher efficiency, reduction of dv/dt stressesand
gives the possibility of working with low speed
semiconductors if its comparison with the two-levels
inverters. Numerous of MLI topologies and modulation
techniqueshave been inhoduced and studied extensively,
but most popular MLI topology is Diode Clamp, Flying
Capacitor and CascadedMultilevel Inverter (CMLI). In
this paper we use a CMLI that consist ot some H-Bridge
inverters and with un-equal DC. Its also namely
Asymmetric CascadedNultilevel Inverter (ACMLI). Its
most implemented because this inverter more modular
and simple construction and have other advantages than
Diode clamp and flying capacitor [7].
There are many modulation techniques to conhol this
inverter, such as Selected Harmonics Elimination or
Optimized Harmonic Stepped-Waveform(OHSW), Space
Vector PWM (SVPWM) and Carrier-Based PWM
(CBPWM). Among thes modulation CBPWM is the most
used for multilevel inverter, brcause it have simple
logical and easy to implemented. But if CBPWM used in
U.
10E60G5353IJECSIJENS @ Decembq 2010 UENS
ACMLI
v,.l
ro