Across
- 5. system that changes AC power to DC power
- 6. the process of changing the path of current
- 7. semiconductor switching pattern
- 9. largest component in valve hall
- 10. ability to work together
- 12. controlled device to dissipate excess energy
- 13. smallest functional unit in MMC-VSC
- 14. magnetic effect which does not take place in DC
- 16. different frequency or different phase
- 18. subsystem that converts AC to DC
- 19. semi-conductor device used in modern converters
- 20. system that turns AC into a unipolar waveform
- 21. consisting of many identical standardized subsystems
Down
- 1. more than two converter stations
- 2. state of unchanging electrical fields
- 3. robust semiconductor used in old converters
- 4. naturally occurring periodic electrical phenomenon
- 8. system architecture which can be realized with a single converter bridge at each end
- 11. device that changes AC voltage levels
- 15. unwanted effect resulting from two active systems being coupled
- 17. unwanted additional frequency components