Dynamic Voltage Stabilizer, What Are The Widely Used Types Of Ac Voltage Stabilized Power Supplies?

AC voltage stabilizer has a wide range of uses and many types.

①Dynamic Voltage Regulator (DVR): An AC voltage stabilizer made by combining a saturated choke and a corresponding capacitor with a constant voltage volt-ampere characteristic. The magnetic saturation type is an early typical structure of this dynamic voltage stabilizer. It has a simple structure, is easy to manufacture, has a wide range of input voltage variations, works reliably, and has a strong overload capacity. However, the waveform distortion is large and the stability is not high. The recently developed voltage stabilizer transformer is also a power supply device that uses the nonlinearity of electromagnetic components to achieve voltage stabilization. The difference between it and the dynamic voltage stabilizer lies in the different magnetic circuit structure forms, but the basic working principle is the same. It achieves the dual functions of voltage stabilization and voltage transformation on one core, so it is superior to ordinary power transformers and dynamic voltage stabilizers.

②Magnetic amplifier type AC voltage stabilizer: A device that connects a magnetic amplifier and an autotransformer in series and uses an electronic circuit to change the impedance of the magnetic amplifier to stabilize the output voltage. Its circuit form can be linear amplification or pulse width modulation. This type of voltage stabilizer has a closed-loop system with feedback control, so it has high stability and good output waveform. However, due to the use of a magnetic amplifier with large inertia, the recovery time is long, and due to the use of autocoupling, the anti-interference ability is poor.