Then a vector control method with speed closed-loop and magnetic linkage closed loops put forward, which is based on the constant velocity by means of stator flux-oriented vector control.

在基于定子磁场定向的矢量控制恒线速运行控制方案的基础上，提出了一个速度闭环、磁链闭环的矢量控制方案。

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Flux linkage equation is constituted, the electromagnetic transient of voltage equation with constant speed is gained.

建立了磁链方程，得到了转速为常值时电压方程的电磁瞬态解。

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