1756-L82E

描述

减少发热，就是减少铜损和铁损。 减少铜损有两个方向，减少电阻和电流，这就要求在选型时尽量选择电阻小和额定电流小的电机，对两相电机，能用串联的电机就不用并联电机。但是这往往与力矩和高速的要求相抵触。对于已经选定的电机，则应充分利用驱动器的自动半流控制功能和脱机功能，前者在电机处于静态时自动减少电流，后者干脆将电流切断。另外，细分驱动器由于电流波形接近正弦，谐波少，电机发热也会较少。 减少铁损的办法不多，电压等级与之有关，高压驱动的电机虽然会带来高速特性的提升，但也带来发热的增加。所以应当选择合适的驱动电压等级，兼顾高速性，平稳性和发热，噪音等指标。

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