CAJ | 학술논문

为了提高永磁同步电机直接转矩控制在高速加工中心、精密磨床等场合的控制性能，从零电压矢量的作用原理入手，深入的分析了永磁同步电机直接转矩控制系统中零电压矢量的作用以及转矩滞环比较器结构的改变对转矩波动的影响。与传统转矩滞环比较器相比，采用滞环宽度优化的转矩滞环比较器，通过合理添加零电压矢量，使转矩波动明显减小。利用Matlab仿真平台，证明了转矩滞环宽度相同时，系统速度越低转矩波动越小。在系统速度相同时，转矩滞环比较器滞环宽度越大转矩波动越小。
위료제고영자동보전궤직접전구공제재고속가공중심、정밀마상등장합적공제성능，종령전압시량적작용원리입수，심입적분석료영자동보전궤직접전구공제계통중령전압시량적작용이급전구체배비교기결구적개변대전구파동적영향。여전통전구체배비교기상비，채용체배관도우화적전구체배비교기，통과합리첨가령전압시량，사전구파동명현감소。이용Matlab방진평태，증명료전구체배관도상동시，계통속도월저전구파동월소。재계통속도상동시，전구체배비교기체배관도월대전구파동월소。
In order to improve the performance of permanent magnet synchronous motor direct torque control such as high speed machining center and precision grinder, from the principle of zero voltage vector func-tion, it analyzes the role of zero voltage vector in the Permanent magnet synchronous motor control system and the impact on Torque hysteresis comparator structure of rotating torque fluctuations deeply. Compared with the traditional torque hysteresis comparator, the hysteresis width optimized torque hysteresis comparator reduces torque ripple obviously, by adding zero voltage vectors reasonably. Using the Matlab simulation platform, it proves that under the condition of the same width of hysteresis the smaller the system speeds the smaller the torque ripples, and under the condition of the same system speed the greater the hysteresis width, the smaller the torque ripple.