Deadbeat direct torque and flux control of interior permanent magnet machines with discrete time stator current and stator flux linkage observer
Deadbeat direct torque and flux control of interior permanent magnet machines with discrete time stator current and stator flux linkage observer
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DOI：
10.1109/ecce.2009.5316082
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发表时间：
2009-11
期刊：
影响因子：
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通讯作者：
J. Lee;C. Choi;J. Seok;R. Lorenz
中科院分区：
文献类型：
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作者：
J. Lee;C. Choi;J. Seok;R. Lorenz
提出了一种内置式永磁同步电机（IPMSM）的离散无差拍直接转矩和磁链控制器（DB-DTFC）。提出了一种基于电流模型和电压模型的Gopinath型离散时间磁链观测器。该观测器产生正确估计的磁链需要准确的DB-DTFC实施。为了消除由于数字控制计算的特性而引起的采样延迟，还开发了基于复矢量模型的转子坐标系电流观测器。结合离散时间电流和磁链观测器，正确的单时间步长（无差拍）气隙转矩和定子磁链控制（恒定）开关频率实现和实验评估。
This paper presents a discrete time deadbeat-direct torque and flux controller (DB-DTFC) for interior permanent magnet synchronous machines (IPMSMs). A Gopinath-style discrete time flux linkage observer is developed which contains two different flux estimation methods based on current and voltage models for flux linkage. This observer produces correctly estimated flux linkages needed for accurate DB-DTFC implementation. In order to eliminate the sampling delay due to a characteristic of digital control computation, a complex vector model-based rotor reference frame current observer is also developed. Combining the discrete time current and flux linkage observers, the correct single time step (deadbeat) air-gap torque and stator flux linkage control at the (constant) switching frequency is achieved and experimentally evaluated.