Space Vector Modulation Method for Suppressing the Common-mode Voltage of Double-y-shifted 30-degree Six-Phase Motor
A technology of space vector modulation and common-mode voltage, which is applied in the direction of electrical components, control systems, motor control, etc., can solve problems such as difficult to effectively suppress common-mode voltage, achieve increased hardware costs, unchanged electromagnetic torque and speed performance, The effect of suppressing the common-mode voltage
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[0046] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.
[0047] refer to figure 1 , this embodiment includes the following steps:
[0048] (1) Generate 64 basic vectors;
[0049] (2) Construct 12 intermediate vectors;
[0050] (3) Calculate the action time of 8 basic vectors;
[0051] (4) Design the action sequence of 8 basic vectors.
[0052] In step (1), the process of generating 64 basic vectors is as follows:
[0053] Coordinate transformation matrix of six-phase motor with double Y shift of 30 degrees
[0054]
[0055] The 64 switching states of the voltage-type two-level inverter are transformed into three mutually perpendicular planes, which are called the fundamental wave plane, the third harmonic plane, and the fifth harmonic plane, respectively, and 64 fundamental vectors are obtained. refer to figure 2 And Figure 3, the vector numbers in the figure are represented by dec...
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