There are several ways to increase the frequency of the AC power supply:
1. Replace the power generation equipment: The use of higher frequency power generation equipment can provide higher frequency AC power. For example, increasing the rotor speed of a generator to a higher speed can provide a higher frequency of power.
2. Transformer ratio adjustment: By adjusting the transformer ratio, you can increase or reduce the frequency of AC power. For example, by adjusting the ratio of the transformer, the frequency of the voltage can be adjusted from 50Hz to 60Hz. 3. Use frequency converter: Frequency converter is a device that can adjust the frequency of AC power supply. It can adjust the frequency of the same power supply to a higher or lower frequency, thereby achieving a change in the frequency of the AC power supply. 4. Direct digital control: The use of digital control technology can achieve accurate control of AC power frequency. With appropriate controller and algorithm, the frequency can be changed in real time.
It should be noted that before changing the frequency of the AC power supply, it is necessary to carefully consider the suitability of the power system and the equipment used. And ensure that any changes comply with electrical safety standards and rated parameters of the equipment.
The frequency of the mains is determined by the power plant and can only be changed by a device such as a frequency converter (the AC is first rectified into DC, and then the required frequency of AC is obtained through the inverter circuit).
For independent alternators it is very simple, changing the speed changes the frequency.