Comparison Of Inverters_ Vsi Vs Csi - Power Electronics A To Z 3dg20
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Power Electronics A to Z INVERTERS SMPS Topology Linear PSU UPS Interview Questions
Comparison of Inverters: VSI vs CSI
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BY · PUBLISHED JANUARY 22, 2014 · UPDATED NOVEMBER 8, 2017
Comparison of Inverters: VSI vs CSI
CATEGORIES
Analog Circuit Design Basics (11)
Cadence: Pspice (3)
Choppers (10)
Electrical Drives (9)
get the introduction about them.
IGBT (4)
What is meant by Inverter?
Interview Questions (11)
Inverters (2)
Linear Power Supply Design (4)
Power Electronics Basics (11)
This post will discuss about the difference between Voltage Source Inverter and Current Source Inverter. Before proceeding further we will
The Inverter is the power electronic circuit, which converts the DC
voltage into AC voltage. The DC
Power Semiconductor Devices (21)
SCR Tutorials (11)
Switch Mode Power Supply [SMPS] (4)
Uninterruptible power supply [UPS] (5)
source is normally a battery or output of the controlled rectifier. The output voltage waveform of the inverter can be square wave, quasi-square wave or low distorted sine wave. The output voltage can be controlled with the help of drives of the switches. The pulse width modulation techniques are most commonly used to control the output voltage of inverters. Such inverters are called as PWM
WMS Handbook Free Tank Weighing Design Handbook for Engineers. now. METTLER TOLEDO
inverters. The output voltage of the inverter contain harmonics whenever it is not sinusoidal. These harmonics can be reduced by using proper control
GET UPDATES VIA EMAIL:
Enter your email address:
schemes.
What are the various types of Inverters? Inverters can be broadly classified into two types. They are 1. Voltage Source Inverter (VSI) 2. Current Source Inverter (CSI) When the DC voltage remains constant, then it is called Voltage Source Inverter(VSI) or Voltage Fed Inverter (VFI).
Subscribe
When input current is maintained constant, then it is called Current Source Inverter (CSI) or Current Fed Inverter (CFI). Some times, the DC input voltage to the inverter is controlled to adjust the output. Such inverters are called Variable DC Link Inverters. The inverters can have single phase or three-phase output. A voltage source inverter(VSI) is fed by a stiff DC voltage, whereas a current source inverter is fed by a stiff current source. A voltage source can be converted to a current source by connecting a series inductance and then varying the voltage to obtain the desired current. A VSI can also be operated in current-controlled mode, and similarly a CSI can also be operated in the voltage control mode. The inverters are used in
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variable frequency ac motor drives, uninterrupted power supplies, induction heating, static VAR compensators, etc.
Like Page
Be the first of your friends to like this
The following table gives us the comparative study between VSI and CSI To search type and hit enter
VSI
CSI
Share
VSI is fed from a CSI is fed with DC voltage
adjustable
source having
current from a
small or
DC voltage
negligible
source of high
impedance.
impedance.
Input voltage is maintained constant
Output voltage does not dependent on the load
The waveform of the load current as well as its magnitude depends upon the nature of load impedance.
The input current is constant but adjustable. The amplitude of output current is independent of the load. The magnitude of output voltage and its waveform depends upon the nature of the load impedance. The CSI does
VSI requires
not require any
diodes diodes. The
Commutation
commutation
circuit is simple
circuit is
as it contains
complicated
only capacitors.
Power BJT,
They cannot be
Power MOSFET, used as these
IGBT, GTO with
devices have to
self
withstand
commutation
reverse voltage.
can be used in the circuit.
DO YOU KNOW??? Do you know about Inductors? A component called an inductor is used when the property of inductance is required in a circuit. The basic form of an inductor is simply a coil of wire. Factors which affect the inductance of an inductor include: (i) the number of turns of wire—the more turns, the higher the inductance. (ii) the cross-sectional area of the coil of wire—the greater the crosssectional area the higher the inductance. (iii) the presence of a magnetic core —when the coil is wound on an iron core, the same current sets up a more concentrated magnetic fi eld and the inductance is increased. (iv) the way the turns are arranged —a short thick coil of wire has a higher inductance than a long thin one.
YOU MAY ALSO LIKE...
DC to AC Converter - Inverter - An Introducti on OCTOBER 12, 2017
26 RESPONSES Comments 26 Pingbacks 0 Mrityunjaya Patted
January 29, 2014 at 7:48 pm
I m very thankful to each and every one who are working behind this website. Very useful Very knowledgeable contents i found. Only request from our side is, please update about INVERTERS AND ALL CONVERTERS MORE DEPTH. Reply
January 30, 2014 at 7:10
am
Heartly thanks for your commets....Sure we will release more posts related to verious converters soon....these kind of comments from our visitors makes us to work more energitically
Reply Akere Yomi Paul
February 1, 2014 at 11:22 pm
waow! this is great! ur publications are realy simple and explicit. so hapy I gotto know you. keep up the great work. Reply Shashi ranjan singh
March 3, 2014 at 9:03 am
Thnx for knowledge Reply santhosh
September 11, 2014 at 10:13 pm
I am very thankful to each and every one who are working behind this website. Very useful Very knowledgeable contents i found, very useful information... Reply apurva
December 9, 2014 at 1:13 pm
really helpful.. accurate points.. thnkyou for posting it! Reply apurva
December 9, 2014 at 1:13 pm
really helpful.. accurate points.. thnkyou for posting it! Reply swati singh
December 18, 2014 at 4:11 pm
Thank u so much.its very helpful for my subject. Reply Darshan Kachariya
January 20, 2015 at 6:55 am
I m very thankful to each and every one who are working behind this website. i hope u please mention 3 phase converter fully operation with wave form for different firing angle and different combination of thyristor... Reply Darshan Kachariya
February 11, 2015 at 8:25 am
I m very thankful to each and every one who are working behind this website. i hope u please mention 3 phase converter fully operation with wave form for different firing angle and different combination of thyristor… Reply Meghana
March 27, 2015 at 5:31 pm
Thanks a ton! Reply ramkumar
April 5, 2015 at 4:01 pm
super super super Reply aditya
May 21, 2015 at 4:44 pm
you guys are doing a very good job. Keep it updated.. Reply naveed farooq
June 8, 2015 at 3:13 pm
bro . i m very thank ful to you . u have very easy describe each and every topic about vsi and
csi . i hope so u have also work better thnks Reply K.Sri Harsha
October 24, 2015 at 3:57 pm
why voltage source inverter suits for buck operation and CSI suits for boost operation pls give me brief idea? Reply ashwini
November 4, 2015 at 4:18 pm
why vsi is always a buck converter Reply Arun Antony M
November 23, 2015 at 6:11 am
Grateful to you for the information provided. This requires appreciation. Could you please provide specific practical applications for CSI and VSI to distinguish their working principles? Then it will be much more valuable. Reply Yonis
December 28, 2015 at 3:48 pm
Hi thanks for explained and I have one question is it mean for all converters even dc-dc converter my question (what different between voltage fed converter and current fed converter? ) Thanks Reply Abinesh
December 30, 2015 at 9:14
am
Converter circuit is converting AC into DC..... But is some text books all type of converting circuits( AC-DC rectifier, DC-DC chopper, dc-ac inverter, ac-ac cycloconverters) are simply mentioned as converters..... I believe that there is no Rectifiers(converters) with voltage fed and current fed..... Reply Arun Antony M
December 30, 2015 at 12:55 am
Do a battery+inverter supply reactive power? Consider the case of inverter feeding a ceiling fan. Ceiling fan contains main winding(inductor+resistance) and auxiliary winding(containing capacitor+resistance). As active power is average power/dc power, I think current from battery is used for only providing active power. Then what about reactive power? Can it be explained without following CSI/VSI principle, it will be useful. Reply Hari
August 25, 2016 at 8:38 am
Very nice question.. I understand that reactive power in an ac circuit is something that recurrently flows bidirectionally across
source and load and its net average power is zero. How can we consider this in inverter fed loads? Anybody please answer if you know... Reply sunitha
October 1, 2016 at 3:56 am
thanks alot Reply Milan Lakhani
February 21, 2017 at 6:53 am
good stuff keep it up Reply Jahid Hasan Shubho
August 2, 2017 at 5:27 pm
thanks a lot bro.... Reply Sathish rajkumar Rajkumar
October 23, 2017 at 4:48 pm
What is the main motive behind using Current source rectifiers..? Reply catur
November 7, 2017 at 5:53 am
Great Explanation ...Thanks Reply
LEAVE A REPLY Comment
Name *
Email *
Website
Post Comment Notify me of follow-up comments by email. Notify me of new posts by email.
DIY Electronics Projects Power Electronics A to Z © 2017. All Rights Reserved.
Power Electronics A to Z INVERTERS SMPS Topology Linear PSU UPS Interview Questions
Comparison of Inverters: VSI vs CSI
Learn and build on G for free. TRY IT FREE
BY · PUBLISHED JANUARY 22, 2014 · UPDATED NOVEMBER 8, 2017
Comparison of Inverters: VSI vs CSI
CATEGORIES
Analog Circuit Design Basics (11)
Cadence: Pspice (3)
Choppers (10)
Electrical Drives (9)
get the introduction about them.
IGBT (4)
What is meant by Inverter?
Interview Questions (11)
Inverters (2)
Linear Power Supply Design (4)
Power Electronics Basics (11)
This post will discuss about the difference between Voltage Source Inverter and Current Source Inverter. Before proceeding further we will
The Inverter is the power electronic circuit, which converts the DC
voltage into AC voltage. The DC
Power Semiconductor Devices (21)
SCR Tutorials (11)
Switch Mode Power Supply [SMPS] (4)
Uninterruptible power supply [UPS] (5)
source is normally a battery or output of the controlled rectifier. The output voltage waveform of the inverter can be square wave, quasi-square wave or low distorted sine wave. The output voltage can be controlled with the help of drives of the switches. The pulse width modulation techniques are most commonly used to control the output voltage of inverters. Such inverters are called as PWM
WMS Handbook Free Tank Weighing Design Handbook for Engineers. now. METTLER TOLEDO
inverters. The output voltage of the inverter contain harmonics whenever it is not sinusoidal. These harmonics can be reduced by using proper control
GET UPDATES VIA EMAIL:
Enter your email address:
schemes.
What are the various types of Inverters? Inverters can be broadly classified into two types. They are 1. Voltage Source Inverter (VSI) 2. Current Source Inverter (CSI) When the DC voltage remains constant, then it is called Voltage Source Inverter(VSI) or Voltage Fed Inverter (VFI).
Subscribe
When input current is maintained constant, then it is called Current Source Inverter (CSI) or Current Fed Inverter (CFI). Some times, the DC input voltage to the inverter is controlled to adjust the output. Such inverters are called Variable DC Link Inverters. The inverters can have single phase or three-phase output. A voltage source inverter(VSI) is fed by a stiff DC voltage, whereas a current source inverter is fed by a stiff current source. A voltage source can be converted to a current source by connecting a series inductance and then varying the voltage to obtain the desired current. A VSI can also be operated in current-controlled mode, and similarly a CSI can also be operated in the voltage control mode. The inverters are used in
LIKE US IN FACEBOOK
Complete Power El… 3,195 likes
variable frequency ac motor drives, uninterrupted power supplies, induction heating, static VAR compensators, etc.
Like Page
Be the first of your friends to like this
The following table gives us the comparative study between VSI and CSI To search type and hit enter
VSI
CSI
Share
VSI is fed from a CSI is fed with DC voltage
adjustable
source having
current from a
small or
DC voltage
negligible
source of high
impedance.
impedance.
Input voltage is maintained constant
Output voltage does not dependent on the load
The waveform of the load current as well as its magnitude depends upon the nature of load impedance.
The input current is constant but adjustable. The amplitude of output current is independent of the load. The magnitude of output voltage and its waveform depends upon the nature of the load impedance. The CSI does
VSI requires
not require any
diodes diodes. The
Commutation
commutation
circuit is simple
circuit is
as it contains
complicated
only capacitors.
Power BJT,
They cannot be
Power MOSFET, used as these
IGBT, GTO with
devices have to
self
withstand
commutation
reverse voltage.
can be used in the circuit.
DO YOU KNOW??? Do you know about Inductors? A component called an inductor is used when the property of inductance is required in a circuit. The basic form of an inductor is simply a coil of wire. Factors which affect the inductance of an inductor include: (i) the number of turns of wire—the more turns, the higher the inductance. (ii) the cross-sectional area of the coil of wire—the greater the crosssectional area the higher the inductance. (iii) the presence of a magnetic core —when the coil is wound on an iron core, the same current sets up a more concentrated magnetic fi eld and the inductance is increased. (iv) the way the turns are arranged —a short thick coil of wire has a higher inductance than a long thin one.
YOU MAY ALSO LIKE...
DC to AC Converter - Inverter - An Introducti on OCTOBER 12, 2017
26 RESPONSES Comments 26 Pingbacks 0 Mrityunjaya Patted
January 29, 2014 at 7:48 pm
I m very thankful to each and every one who are working behind this website. Very useful Very knowledgeable contents i found. Only request from our side is, please update about INVERTERS AND ALL CONVERTERS MORE DEPTH. Reply
January 30, 2014 at 7:10
am
Heartly thanks for your commets....Sure we will release more posts related to verious converters soon....these kind of comments from our visitors makes us to work more energitically
Reply Akere Yomi Paul
February 1, 2014 at 11:22 pm
waow! this is great! ur publications are realy simple and explicit. so hapy I gotto know you. keep up the great work. Reply Shashi ranjan singh
March 3, 2014 at 9:03 am
Thnx for knowledge Reply santhosh
September 11, 2014 at 10:13 pm
I am very thankful to each and every one who are working behind this website. Very useful Very knowledgeable contents i found, very useful information... Reply apurva
December 9, 2014 at 1:13 pm
really helpful.. accurate points.. thnkyou for posting it! Reply apurva
December 9, 2014 at 1:13 pm
really helpful.. accurate points.. thnkyou for posting it! Reply swati singh
December 18, 2014 at 4:11 pm
Thank u so much.its very helpful for my subject. Reply Darshan Kachariya
January 20, 2015 at 6:55 am
I m very thankful to each and every one who are working behind this website. i hope u please mention 3 phase converter fully operation with wave form for different firing angle and different combination of thyristor... Reply Darshan Kachariya
February 11, 2015 at 8:25 am
I m very thankful to each and every one who are working behind this website. i hope u please mention 3 phase converter fully operation with wave form for different firing angle and different combination of thyristor… Reply Meghana
March 27, 2015 at 5:31 pm
Thanks a ton! Reply ramkumar
April 5, 2015 at 4:01 pm
super super super Reply aditya
May 21, 2015 at 4:44 pm
you guys are doing a very good job. Keep it updated.. Reply naveed farooq
June 8, 2015 at 3:13 pm
bro . i m very thank ful to you . u have very easy describe each and every topic about vsi and
csi . i hope so u have also work better thnks Reply K.Sri Harsha
October 24, 2015 at 3:57 pm
why voltage source inverter suits for buck operation and CSI suits for boost operation pls give me brief idea? Reply ashwini
November 4, 2015 at 4:18 pm
why vsi is always a buck converter Reply Arun Antony M
November 23, 2015 at 6:11 am
Grateful to you for the information provided. This requires appreciation. Could you please provide specific practical applications for CSI and VSI to distinguish their working principles? Then it will be much more valuable. Reply Yonis
December 28, 2015 at 3:48 pm
Hi thanks for explained and I have one question is it mean for all converters even dc-dc converter my question (what different between voltage fed converter and current fed converter? ) Thanks Reply Abinesh
December 30, 2015 at 9:14
am
Converter circuit is converting AC into DC..... But is some text books all type of converting circuits( AC-DC rectifier, DC-DC chopper, dc-ac inverter, ac-ac cycloconverters) are simply mentioned as converters..... I believe that there is no Rectifiers(converters) with voltage fed and current fed..... Reply Arun Antony M
December 30, 2015 at 12:55 am
Do a battery+inverter supply reactive power? Consider the case of inverter feeding a ceiling fan. Ceiling fan contains main winding(inductor+resistance) and auxiliary winding(containing capacitor+resistance). As active power is average power/dc power, I think current from battery is used for only providing active power. Then what about reactive power? Can it be explained without following CSI/VSI principle, it will be useful. Reply Hari
August 25, 2016 at 8:38 am
Very nice question.. I understand that reactive power in an ac circuit is something that recurrently flows bidirectionally across
source and load and its net average power is zero. How can we consider this in inverter fed loads? Anybody please answer if you know... Reply sunitha
October 1, 2016 at 3:56 am
thanks alot Reply Milan Lakhani
February 21, 2017 at 6:53 am
good stuff keep it up Reply Jahid Hasan Shubho
August 2, 2017 at 5:27 pm
thanks a lot bro.... Reply Sathish rajkumar Rajkumar
October 23, 2017 at 4:48 pm
What is the main motive behind using Current source rectifiers..? Reply catur
November 7, 2017 at 5:53 am
Great Explanation ...Thanks Reply
LEAVE A REPLY Comment
Name *
Email *
Website
Post Comment Notify me of follow-up comments by email. Notify me of new posts by email.
DIY Electronics Projects Power Electronics A to Z © 2017. All Rights Reserved.
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