Intelligent power control: intelligent power conversion of stable frequency power supply
2024/1/22 10:10:43
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Stabilized frequency power supply is a device used for power conversion. It is mainly used to adjust the voltage and frequency of the input power supply to keep it within a specific value range to meet user needs and ensure the normal operation of electrical equipment. Usually, a frequency-stabilized power supply consists of a transformer, an inverter, a control circuit, etc., and achieves stable output of voltage and frequency by accurately regulating and controlling the input power supply. This kind of power supply equipment plays a key role in various application scenarios, ensuring that the power supply meets equipment requirements and improving the reliability and stability of electrical equipment.
Control Principle
Voltage control is achieved through a feedback mechanism. The sensor measures the output voltage and compares it to the set value. If the output voltage deviates from the set value, the control system will send a signal to adjust the working status of the inverter to restore the output voltage to the set value, ensuring the stability of the output voltage to adapt to the needs of different load changes. Frequency control is achieved by adjusting the switching frequency of the inverter. According to the input voltage and load requirements, the switching frequency is dynamically adjusted to keep the output power supply in a stable state within the set frequency range to adapt to different grid frequencies or special needs. These two control mechanisms together ensure that the frequency-stabilized power supply can flexibly respond to voltage and frequency requirements under different working conditions.
System Principle
The system principle of frequency-stabilized power supply can be divided into two main parts: input power adjustment and output power stabilization. First, input power regulation is achieved through a transformer, which raises or lowers the input voltage and adjusts it to a level suitable for the output. The frequency-stabilized power supply selects a lower voltage as the intermediate voltage so that the subsequent inverter can more accurately control the output voltage. The core of output power stabilization lies in the inverter, which receives the intermediate voltage from the transformer and converts it into a stable AC output. The inverter uses high-frequency switching technology to convert DC power into AC power, and ensures the stability of the output waveform and reduces ripple through adjustment and filtering.
Generally speaking, the frequency-stabilized power supply achieves stable power output by adjusting the input power voltage and frequency. It has two aspects of voltage control and frequency control to keep the output voltage and frequency stable. It is widely used in various fields to ensure the normal operation of electrical equipment.