For example, when there's a large difference between indoor temperature and the temperature set by the user, the compressor of a VFD air conditioning unit will operate at high speed until the set temperature is reached, and then it will slow down, rather than constantly running at the same speed, or stopping and re-starting.
例如，冷氣在室內溫度和設定溫度落差大時，變頻器會讓壓縮機高速運轉，一旦到達設定溫度時就調整為低速，而不是從頭到尾同一轉速，也無需藉不斷地「停止／啟動」來改變轉速。