中文摘要：

针对双转子电机在实现精确矢量控制时需要其内外转子的相对转速／相对转角信息的问题，提出一种基于旋转变压器测量双转子电机内外转子的相对转速／转角的方法。首先，基于坐标变换对旋转变压器的全数字轴角变换算法进行改进，设计一种全数字转差轴角变换算法，使改进后的算法可对相对转速／相对转角进行精确闭环跟踪，而且轴角变换算法的复杂度较直接求差获得相对转速／转角可以减少一半，使其易于实现。其次，通过仿真分析验证全数字转差轴角变换算法的正确性，并基于TMS320 F2812设计相对转速／转角测量系统，进行相关的硬件设计和软件设计。最后，通过实验验证了所设计系统的可行性。

英文摘要：

For realizing vector control on the double-rotor-machine, it is necessary to acquire the relative angular speed/position between the inner rotor and the outer rotor.A method for measuring the relative angular speed /position based on resolvers was put forward.Firstly, based on the transformation of coor-dinates, the all-digital R2D algorithm was improved to close-loop track the relative angular speed/position between two different rotors while the complexity of the algorithm is not increased, which made the con-verter easily realized.Secondly, simulation was done to prove the correctness of this algorithm, and then a measure system was designed based on TMS320F2812, including its hardware and software.Finally, experiment was finished to prove the reliability of this system.