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COMPARISON OF POWER CONVERTERS WITH DC AND AC LINK
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| Author(s) |
J. Petzoldt; S. Bernet; T. Reimann |
| Abstract |
At present, power converter systems with DC link on the basis of hard switching dominate in the field of power electronics. Wanted low loss switching processes can be achieved by using Zero Current Switches (ZCS) and Zero Voltage Switches (ZVS). Without additional resonant circuits in the load or switch branches ZCS and ZVS can be applied in DC and AC link converters, in which the main switch arms have got commutating units. In this paper, a cornparative view of the characteristics of hard switching DC link- and soft switching DC- and AC link converters is presented. Essential dissipative components are investigated and checked by measurements at various working points for a single phase converter. The calculation of the total losses of the three-phase converter systems in various working points is the basis of a comparison of the several systems. Specific advantages and disadvantages of the converters are discussed. |
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| Filename: | Unnamed file |
| Filesize: | 3.363 MB |
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| Type |
Members Only |
| Date |
Last modified 2019-05-13 by System |
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