The призначення і класифікація of AC регульований живлення постачання
Безконтактний змінний струм напруга регулятор
The призначення і класифікація of AC регульований живлення постачання
② Магнітний підсилювач тип AC напруга регулятор: a пристрій that connects the magnetic amplifier and Autotransformer in series and uses electronic circuits to change the impedance of the the magnetic amplifier to stabilize the output voltage. its circuit form can can be linear amplification, pulse width modulation, etc. this type of regulator has a closed loop system with feedback control, so it has high stability and good output waveform. однак, due to the use of magnetic amplifiers with high inertia, the recovery time is longer. Due to the use of self coupling, the anti-interference ability is poor.
③ Індукція AC напруга регулятор: A пристрій that stabilizes the output AC voltage by changing the phase difference between the secondary voltage of the transformer and the primary voltage. it is is similar to wound asynchronous motor in structure, and similar to induction pressure regulator in principle. Its stable voltage range is wide, the output voltage waveform is good, and the power can reach hundreds of kilowatts. однак, due to the rotor often being in a locked state, the power consumption is high and the efficiency is low. Due to the high use of copper and iron materials, there is less production.
④ Thyristor AC voltage regulator: An AC voltage regulator that uses thyristors as power adjustment components. It has the advantage of high stability, fast response, and no noise. But due to damage to the city's radio waveform, it causes interference to communication and electronic equipment.
The призначення і класифікація of AC регульований живлення постачання
Ковзання AC напруга регулятор: A пристрій that changes the position of the sliding contact of a transformer to achieve stable output voltage, that is, an automatic voltage regulating AC voltage regulatoring AC voltage regulator driven by a servo motor. this type of voltage regulator has high efficiency, good output voltage waveform, and no special requirements for load properties. But the stability is low and the recovery time is is longer.
With the development of power supply technology, the follow three new types of AC regulated power sources emerged in the 1980s.
① Компенсований AC напруга регулятор: також відомі as часткові регулювання напруга регулятор. The additional voltage of the compensation transformer is connected in series between the power supply and the load. З те збільшення або зменшення з введення напруга, переривчастий AC перемикачі (контактори або тиристори) або безперервний серво двигуни є використовується до зміни розмір або полярність з додаткового напруги, віднімання (або додавання) the вищий (або нижній) частина of the вхід напруга до досягнення напруга стабілізація. The ємність of the компенсація трансформатор is only about 1/7 of the output power, which has the переваги of simple structure and low Вартість, Але ІТС СТАБІЛЬНІСТЬ Є не Висока.
② CNC AC voltage regulator and stepper voltage regulator: A control circuit composed of logic components or microprocessors, which converts the primary turns of the transformer according to the input voltage to stabilize the out voltage.
③ Static AC voltage regulator: It has been applied due to its excellent isolation function and can eliminate peak interference from the power grid.
