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《The World of Inverters》 2016-12
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New High Voltage M2C Inverters for Oil and Gas Compressor Drives(Part-1)

Ma Xiaoliang;  
Variable speed drives have been widely applied for high power oil gas compressors,pumps and fans.The cascaded H-bridge inverters(CHB) are the most popular high voltage inverters in our country,they have good performances and are named "Perfect Harmony ",but their phase shift multi-winding transformers and rectifiers of grid side are huge and complicated.The Siemens has developed a new kind of high voltage inverters SINAMICS GH150 for variable speed drives which is based on the Modular Multilevel Converter(M2C).The new one has the same good performances as the CHB has and got the benefit of simplifying transformers and rectifiers by increasing a small amount of total area of device chips.The theory,problem and solution as well as redundancy and reliability of the M2C inverters are investigated in this paper.The comparisons between The M2C and other popular Inverters are discussed.
【CateGory Index】: TH45;TM921.51
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