IGBTs and Solar Inverters
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DAVID SMITH
Feb 11, 2015, 11:56:32 AM2/11/15
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Please consider this free-reprint article written by:
DAVID SMITH
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Article Title: IGBTs and Solar Inverters
Author: DAVID SMITH
Word Count: 616
Article URL: http://www.isnare.com/?aid=1926231&ca=Computers+and+Technology
Format: 64cpl
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IGBTs are excellent choices for use in solar inverters where voltage from a solar panel array on a residential or commercial building is converted from direct current to alternating current at a specific voltage output and frequency. IGBTs, like MOSFETS, use voltage rather than current as a means of control, with current applied across their gates being typically very low.
IGBTs are a type of bipolar junction transistor or BJT which have a semiconductor gate structure composed of metal oxide. BJTs have a higher current capability compared to MOSFETs. The speed at which an IGBT turns off is determined by how rapid the minority carrier recombines. The turn off time has an inverse relationship with the voltage drop or VCEON. This means that IGBTs with inherently rapid turn off times have a higher voltage drop and vice versa. Ultra fast IGBTs do switch off much faster than standard IGBTs, even if the IGBTs have the same dimensions and are basically manufactured the same way. The exact combination of speed and voltage drop is determined by adjusting the minority carrier recombination rate this in turn controls the turn off time.
Four switches are typically employed in a solar inverter. Two of the switches are high side IGBTs, while the other two are low side IGBTs. Solar inverters of this type produce a sinusoidal wave form and single phase alternating current. The frequency and voltage depend on the specific use required. In a household solar array system, the inverter will normally deliver voltage and frequency similar or the same as that provided by the mains electricity provider as it will be used to power household appliances that are designed to use mains power.
Inverters for installation in a residential capacity are usually linked to the power grid. These installations usually provide power to the grid when there is a surplus with tariff benefits depending on the location and provider. To enable this feature, the solar inverter is required to pulse width modulate the IGBTs above 20kHZ. The modulation frequency is normally around 50 to 60 Hz. This sort of pulse width modulation means that the two outut indicators can be maintained relatively small in size and they will also have the benefit of suppressing harmonics effectively.
This sort of solar inverter has switching speeds much higher than can be heard by the human ear so they remain basically noiseless.
To keep the power dissipation as low as possible, pulse width modulation is restricted to the two high side IGBTs while the low side IGBTs are commutated at 50 to 60kHz.
Http://www.USComponent.com had been selling IGBT power transistor modules since 2001. Thyssen Krupp, OTIS, IXYS, SONY DADC, General Motors, Hongkong Electric Holdings Limited, Singapore Mass Rapid Transit Trains LTD, Verkehrsbetriebe Zurich, Czech Airlines, Molex, Cisco, Omron, Good Year Tires, Thai Airasia, Boeing, Xilinx, LEAR SIEGLER, and General Electric.
Http://www.USComponent.com has a Quality Control Team like no other. This means that we know how to work hard in order to ensure to make sure that the quality of all of the parts we’re selling is high. Because we only sell new and original electronic parts, we provide our customers with a 30-day warranty. And because we have connections with IGBT power transistor modules manufacturers, OEMs and distributors, we’re able to pass any savings on to our customers, giving them a lower price while still providing them with the quality products they deserve. Our inventory is carefully managed and held to the highest standards, and stored in a controlled environment warehousing facility.
See more at: http://www.uscomponent.com/uscomponent/blog/
About The Author: David Smith, Senior Vice President of http://USComponent.com , an IGBT power transistor module distributor since 2001.
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=1926231
*********************** ARTICLE END ***********************
- To distribute your articles go to http://www.isnare.com/distribution.php
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Message delivered directly to members of the group:
publish-the...@googlegroups.com
*****************************************************************
Please consider this free-reprint article written by:
DAVID SMITH
*****************************
IMPORTANT - Publication/Reprint Terms
- You have permission to publish this article electronically in free-only publications such as a website or an ezine as long as the bylines are included.
- You are not allowed to use this article for commercial purposes. The article should only be reprinted in a publicly accessible website and not in a members-only commercial site.
- You are not allowed to post/reprint this article in any sites/publications that contains or supports hate, violence, porn and warez or any indecent and illegal sites/publications.
- You are not allowed to use this article in UCE (Unsolicited Commercial Email) or SPAM. This article MUST be distributed in an opt-in email list only.
- If you distribute this article in an ezine or newsletter, we ask that you send a copy of the newsletter or ezine that contains the article to http://www.isnare.com/eta.php?aid=1926231
- If you post this article in a website/forum/blog, ALL links MUST be set to hyperlinks and we ask that you send a copy of the URL where the article is posted to http://www.isnare.com/eta.php?aid=1926231
- We request that you ask permission from the author if you want to publish this article in print.
The role of iSnare.com is only to distribute this article as part of its Article Distribution feature ( http://www.isnare.com/distribution.php ). iSnare.com does NOT own this article, please respect the author's copyright and this publication/reprint terms. If you do not agree to any of these terms, please do not reprint or publish this article.
*****************************
Article Title: IGBTs and Solar Inverters
Author: DAVID SMITH
Word Count: 616
Article URL: http://www.isnare.com/?aid=1926231&ca=Computers+and+Technology
Format: 64cpl
Contact The Author: http://www.isnare.com/eta.php?aid=1926231
Easy Publish Tool: http://www.isnare.com/html.php?aid=1926231
*********************** ARTICLE START ***********************
IGBTs are excellent choices for use in solar inverters where voltage from a solar panel array on a residential or commercial building is converted from direct current to alternating current at a specific voltage output and frequency. IGBTs, like MOSFETS, use voltage rather than current as a means of control, with current applied across their gates being typically very low.
IGBTs are a type of bipolar junction transistor or BJT which have a semiconductor gate structure composed of metal oxide. BJTs have a higher current capability compared to MOSFETs. The speed at which an IGBT turns off is determined by how rapid the minority carrier recombines. The turn off time has an inverse relationship with the voltage drop or VCEON. This means that IGBTs with inherently rapid turn off times have a higher voltage drop and vice versa. Ultra fast IGBTs do switch off much faster than standard IGBTs, even if the IGBTs have the same dimensions and are basically manufactured the same way. The exact combination of speed and voltage drop is determined by adjusting the minority carrier recombination rate this in turn controls the turn off time.
Four switches are typically employed in a solar inverter. Two of the switches are high side IGBTs, while the other two are low side IGBTs. Solar inverters of this type produce a sinusoidal wave form and single phase alternating current. The frequency and voltage depend on the specific use required. In a household solar array system, the inverter will normally deliver voltage and frequency similar or the same as that provided by the mains electricity provider as it will be used to power household appliances that are designed to use mains power.
Inverters for installation in a residential capacity are usually linked to the power grid. These installations usually provide power to the grid when there is a surplus with tariff benefits depending on the location and provider. To enable this feature, the solar inverter is required to pulse width modulate the IGBTs above 20kHZ. The modulation frequency is normally around 50 to 60 Hz. This sort of pulse width modulation means that the two outut indicators can be maintained relatively small in size and they will also have the benefit of suppressing harmonics effectively.
This sort of solar inverter has switching speeds much higher than can be heard by the human ear so they remain basically noiseless.
To keep the power dissipation as low as possible, pulse width modulation is restricted to the two high side IGBTs while the low side IGBTs are commutated at 50 to 60kHz.
Http://www.USComponent.com had been selling IGBT power transistor modules since 2001. Thyssen Krupp, OTIS, IXYS, SONY DADC, General Motors, Hongkong Electric Holdings Limited, Singapore Mass Rapid Transit Trains LTD, Verkehrsbetriebe Zurich, Czech Airlines, Molex, Cisco, Omron, Good Year Tires, Thai Airasia, Boeing, Xilinx, LEAR SIEGLER, and General Electric.
Http://www.USComponent.com has a Quality Control Team like no other. This means that we know how to work hard in order to ensure to make sure that the quality of all of the parts we’re selling is high. Because we only sell new and original electronic parts, we provide our customers with a 30-day warranty. And because we have connections with IGBT power transistor modules manufacturers, OEMs and distributors, we’re able to pass any savings on to our customers, giving them a lower price while still providing them with the quality products they deserve. Our inventory is carefully managed and held to the highest standards, and stored in a controlled environment warehousing facility.
See more at: http://www.uscomponent.com/uscomponent/blog/
About The Author: David Smith, Senior Vice President of http://USComponent.com , an IGBT power transistor module distributor since 2001.
Please use the HTML version of this article at:
http://www.isnare.com/html.php?aid=1926231
*********************** ARTICLE END ***********************
- To distribute your articles go to http://www.isnare.com/distribution.php
- For more free-reprint articles go to http://www.isnare.com
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