| 摘要 |
A voltage pulsation dampening device relates to electric engineering and may be used in rectifying devices. A pulsation sensor is allocated ac component from a current sensor output signal; the said component carries information as to pulsations on load. The pulsation sensor output signal through a multiplier, an amplifier, a transformer and a capacitor is supplied to load in antiphase to pulsation voltage, as a result decreasing of voltage pulsation on load occurs. An output ac signal of the pulsation sensor is rectified by a module separation element and compared to a signal pulsation separator at regulator inputs. A neutralize voltage at multiplier input is varied under action of output signal. While an integral controller is used, the system takes on the astatic properties; an error between an output signal of the module separation element and pulsation sensor is equal to zero. As a result the invariability of the set value to load upon changing source modes and load parameters is achieved that improves efficiency of device operation. |
