| 摘要 |
A comprises a load current sensor, a first choke, a single-phase bridge rectifier, a capacitor, a two-phase clock unit, a two-phase sinusoidal signal generator, first and second multiplication units, a division unit, a network phase voltage an amplitude sensor, a first adder, a capacitor voltage sensor, a second adder, third and second adders, first and second relay elements, a third relay element, a fifth adder, eight sharpener amplifier, a setting unit, a mode selection switch, three logic elements NOT, DC reverser. Moreover, the second capacitor series connected to the first capacitor is introduced. The outputs of series connected capacitors are connected to the bridge rectifier output, reverser input and capacitor voltage sensor. The middle point of in series connected capacitors is connected to the third phase of network. |
