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13+14: Suppressing emissions of mains harmonics, voltage fluctuations and flicker
Provides 1 hour towards CPD
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Details
This module explains the Suppression of emissions of mains harmonics, voltage fluctuations and flicker
Course is 60 slides over 30 pages
Contents:-
Suppressing emissions of mains harmonics
- The mains harmonic currents emitted by rectifier-capacitor AC-DC power converters
- Smaller values of storage capacitor and the “Valley Fill” method
- Filters
- DC chokes
- Charge-pump switch-mode techniques
- ‘Active’ PFC circuits
- 6-phase rectification
- Active front end (AFE) rectification
Suppressing emissions of voltage fluctuations and flicker
- Load current fluctuations cause the problems
- Reducing the inrush current
- Suppressing AC loads
- Suppressing DC loads
- Using Active PFC as an active filter
- Some useful references
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