Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Roger Critchley"'
Publikováno v:
Applied Energy. 84:147-158
Objective: To investigate explanatory factors for persistent cold temperatures in homes which have received heating improvements.\ud Design: Analysis of data from a national survey of dwellings and households (in England occupied by low-income reside
Autor:
Michael M. C. Merlin, Fainan Hassan, R W Crookes, Roger Critchley, David Reginald Trainer, Timothy C. Green, Carl David Barker, Kevin J. Dyke, Thomas Luth
Publikováno v:
General Meeting of the IEEE-Power-and-Energy-Society (PES)
Demand for DC/DC conversion in HV applications is expected to rise because of the increasing number of HVDC links using different DC voltage levels. This paper presents a DC/AC/DC system consisting of two VSCs connected through an inductor. The two V
Autor:
Timothy C. Green, Thomas Luth, Fainan Hassan, Carl David Barker, Kevin J. Dyke, R W Crookes, Roger Critchley, Michael M. C. Merlin
Publikováno v:
10th IET International Conference on AC and DC Power Transmission (ACDC 2012).
Interconnection of High Voltage Direct Current (HVDC) links into networks is key to a future HVDC grid spanning large regions. Various factors including the evolution of cable technology will lead to a variety of DC voltages and a need to provide a D
Publikováno v:
2011 IEEE International Symposium on Industrial Electronics.
A modular converter structure for medium voltage DC (MVDC) applications is presented in this paper. The new converter structure is designed in such a way that, the modularity is available not only for voltage but also for current ratings, using the a
Autor:
Roger Critchley, Fainan Hassan
Publikováno v:
Proceedings of 14th International Power Electronics and Motion Control Conference EPE-PEMC 2010.
Phase locked loop (PLL) is an important part of the current-controlled grid-connected converter. Its job is to estimate the phase angle of the grid voltage. If the PLL is not robust, the grid-voltage distortion will lead to an error in the estimated
Publikováno v:
2010 IEEE International Symposium on Industrial Electronics.
Stair-case modulation is a simple direct-switching technique applied for modular multilevel converters to reduce the switching frequency of each module and hence minimize the switching losses. The technique could be optimized using a certain modulati
Publikováno v:
Local Economy: The Journal of the Local Economy Policy Unit. 1:3-21
Autor:
Paul D. Mitcheson, Fainan Hassan, Timothy C. Green, Will Crookes, David Reginald Trainer, Michael M. C. Merlin, Roger Critchley
Publikováno v:
University of Edinburgh-PURE
This paper explains the working principles, supported by simulation results, of a new converter topology intended for HVDC applications, called the alternate arm converter (AAC). It is a hybrid between the modular multilevel converter, because of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97a3579af4ffe5e93a75e0f67fb798e7
https://www-test.research.ed.ac.uk/en/publications/bc2350ee-bdf2-40dd-b7e2-43bec5fff47c
https://www-test.research.ed.ac.uk/en/publications/bc2350ee-bdf2-40dd-b7e2-43bec5fff47c