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首页> 外文期刊>IEEE Transactions on Power Electronics >FCS-MPC-Based Fault-Tolerant Control of Five-Phase IPMSM for MTPA Operation
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FCS-MPC-Based Fault-Tolerant Control of Five-Phase IPMSM for MTPA Operation

机译：基于FCS-MPC的五相IPMSM的MTPA操作的容错控制

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摘要

This article proposes a new fault-tolerant control strategy based on finite-control-set model predictive control (FCS-MPC) for interior permanent-magnet synchronous motor (IPMSM) drives under open-circuit faults, including single-phase and double-phase faults. In particular, the double-phase fault will cause a big disturbance to the performance of the motor, but there is no research focused on it with FCS-MPC. The key of this method is that a z subspace orthogonal to the fundamental space is proposed to reduce the total current harmonic distortions under the single-phase fault. And the distributions of space voltage vectors under a double-phase fault are established to realize the fault-tolerant operation. On the other hand, most of the research is focused on the fault-tolerant control of $ext{i}_{d}= 0$, which is not suitable for the IPMSM, due to the ignorance of the reluctance torque. Hence, the proposed strategy is extended into the maximum torque per ampere operation by virtual signal injection, then the amplitudes of phase currents can be reduced and the efficiency of the system can be improved under fault conditions. Compared with the existing fault-tolerant control schemes, the proposed strategy can realize the fault-tolerant operation under open-circuit faults with faster control response and higher operation efficiency, which has been validated by experimental results.
机译：本文提出了一种基于有限控制集模型预测控制（FCS-MPC）的新型容错控制策略，用于内部永磁同步电动机（IPMSM）驱动器在开路故障（包括单相和双相）下的驱动故障。尤其是，双相故障将对电动机的性能造成很大的干扰，但是对于FCS-MPC，尚无针对此的研究。该方法的关键是提出了与基本空间正交的z子空间，以减少单相故障下的总电流谐波畸变。建立双相故障下空间电压矢量的分布，以实现容错运行。另一方面，大多数研究集中在$ text {i} _ {d} = 0 $的容错控制上，由于对磁阻转矩的无知，它不适合IPMSM。因此，通过虚拟信号注入将所提出的策略扩展到每安培操作的最大转矩，然后可以减小相电流的幅度，并可以在故障条件下提高系统的效率。与现有的容错控制方案相比，该策略可以实现开路故障下的容错运行，具有更快的控制响应和更高的运行效率，已通过实验验证。

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