Fuel Consumption Estimate Of Variable Speed Diesel-Generator Unit On The Basis Of Matrix Frequency Converter

One of Small Energy perspectives is development of stand-alone variable speed diesel-generator electric power plants allowing to reduce specific fuel consumption to 30% or more. Diesel-generator rpm control depending on load power also allows to reduce harmful emissions into the atmosphere and to increase internal combustion engine service life. In such power plants internal combustion engine rpm is controlled depending on power load and according to multivariate characteristic. However, output voltage of electric generator, driven by variable speed internal combustion engine will be also characterized by variable frequency and variable amplitude. In order to stabilize the generated electric power parameters, electric energy parameters converter is set up at the electric generator output. An alternative design of diesel-generator electric power plant based on matrix frequency converter is considered in this article. Matrix frequency converter has a number of advantages over autonomous frequency invertor, the basic ones being a higher efficiency coefficient and smaller weight-size parameters. A flowchart of diesel-generator plant based on matrix frequency converter has been developed. Also, fuel consumption calculation methodology has been developed, with the help of which specific fuel consumption, diesel-generator unit based on matrix frequency converter absolute fuel consumption, and constant speed diesel-generator unit dependencies on load power have been obtained. Fuel saving of variable speed electric power plant on matrix frequency converter has been estimated, compared to constant speed electric power plant.