FIELD: electricity.
SUBSTANCE: method consists in periodical switching of power consumers during action of voltage surges in feed circuit using contactless key and smoothing of pulse voltage using LC-filter. Switching is performed in accordance with signal value proportional to first-order time derivative of output voltage. At that, signal that is proportional to throttle current is generated. This signal is summarised with the signal that is proportional to first-order time derivative of output voltage. Contactless key is turned off at moments when summarised signal reaches maximum value and turned on at moments when it reaches minimum value.
EFFECT: reliability improvement.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SURGE VOLTAGE PROTECTION PROCESS | 2004 |
|
RU2264015C1 |
| INTELLECTUAL FILTER OF PULSE SWITCHING OVERVOLTAGES | 2008 |
|
RU2375802C1 |
| SURGE VOLTAGE AND SWITCHING SURGE FILTER FOR DIRECT-CURRENT NETWORK | 2006 |
|
RU2317629C1 |
| DEVICE FOR PROTECTION FROM IMPULSE COMMUTATION OVERLOADS | 2005 |
|
RU2309534C1 |
| PULSED GAS-DISCHARGE TUBE POWER SUPPLY | 0 |
|
SU608274A1 |
| DEVICE FOR CONTROL OF FREQUENCY CONVERTER | 0 |
|
SU1629953A1 |
| ELECTRIC DRIVE | 1992 |
|
RU2037262C1 |
| KEY VOLTAGE NORMALIZER | 2020 |
|
RU2751078C1 |
| POWER SECTION OF HANDLING MACHINE CONTROLLER | 2010 |
|
RU2460683C2 |
| CONVERTER PROTECTION DEVICE | 0 |
|
SU1408495A1 |
