| Autor: |
LIU Ya-hui, GUO Jiang-tao, LIN Yin |
| Jazyk: |
čínština |
| Rok vydání: |
2013 |
| Předmět: |
|
| Zdroj: |
Gong-kuang zidonghua, Vol 39, Iss 4, Pp 36-39 (2013) |
| Druh dokumentu: |
article |
| ISSN: |
1671-251X |
| Popis: |
For characteristics that power supplys in coal mine underground has multi input voltage grades and are susceptible to disturbed when big equipments are starting or stopping, the paper put forward a design scheme of adaptive wide-voltage power supply with explosion-proof and intrinsic safety. The power supply uses intelligent phase shift voltage regulating technology and wide-voltage switching power supply technology, and adopts single-chip microcomputer to realize automatic identification of high and low voltage section, automatic switch, intelligent phase shift voltage regulating of 85-825 V wide input voltage, and uses PWM to convert fluctuant voltage to a stable DC voltage. The experiment results show that the scheme solves problems of multi voltage grades and wide-voltage fluctuation of mine-used power supply. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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