Generalized converter modulation and loss estimation for grid interface applications
MetadataShow full item record
In this paper, a generalized converter based on the cascaded H-bridge converter topology has been proposed to be used for the grid interface applications. This includes application of grid compensation and distributed generation interface to the grid. Basic H-bridge modules can be used to build a suitable three-phase voltage source converter (VSC) topology for any medium voltage distribution system application. A generalized multicarrier closed loop converter modulation has been used for the VSCs. The generalized converter modulation has a feature of equal loss distribution among each cell and all the device units in one cell are stressed uniformly. A methodology has been suggested to estimate the total losses in the converter circuit. This includes transformer losses, converter losses and passive component losses. The loss estimation is carried out for a single cell only and the total estimation is obtained by multiplication with the number of cascaded units. A case study of the application of shunt compensator for grid application has been considered to verify the proposed methodology modulation and loss estimation. The results are validated through PSCAD/EMTDC simulation studies.
Showing items related by title, author, creator and subject.
Yunus, A. M. Shiddiq (2012)Due to the rising demand of energy over several decades, conventional energy resources have been continuously and drastically explored all around the world. As a result, global warming is inevitable due to the massive ...
Darbyshire, James (2010)In the past five years, global interest regarding the development of renewable energy technologies has significantly increased. The conventional electric power generation methods sourced from fossil fuels is now problematic, ...
The Power Loss Optimization of a Current Fed ZVS Two-Inductor Boost Converter With a Resonant Transition Gate DriveLi, Q.; Wolfs, Peter (2006)This paper develops a power loss optimization method in a current fed zero-voltage switching (ZVS) two-inductor boost converter, which is suitable for the module integrated converter applicationsin grid interactive ...