Principle One: Selecting Appropriate Variable Frequency Power Supply Control Methods Based on Load Characteristics
The variety of variable frequency power supplies available on the market has increased, as has their functionality. The performance of variable frequency power supplies is increasingly a determining factor in the quality of speed regulation. In addition to the "innate" manufacturing processes of variable frequency power supplies, the control method used is also very important. The following summarizes the performance characteristics of various variable frequency power supply control methods in recent years. As stated above, the selection of different control methods for variable frequency control of asynchronous motors can yield different characteristics of speed regulation.
Principle Two: Select the protective structure of the variable frequency power supply based on the installation environment
The protective structure of a variable frequency power supply must be compatible with its installation environment. This requires considering factors such as environmental temperature, humidity, dust, pH levels, and corrosive gases, as these significantly impact the long-term, safe, and reliable operation of the variable frequency power supply.
Principle Three: Load Torque Characteristics of Mechanical Equipment
People often categorize production machinery based on the differences in load torque characteristics into three main types: constant torque load, constant power load, and fluid load.
