基于PMSM的轻型输电铁塔螺栓扭矩扳手设计研究

Design and Research on Torque Wrench of Light Transmission Tower Bolt Based on PMSM

输电铁塔螺栓的紧固对铁塔的工程效率和可靠性尤为重要。因此,输电铁塔螺栓扭矩扳手的性能就变得尤为重要。因此,为了减小重量并实现便携,且满足扭矩控制要求,这里提出了利用高功率密度的锂电池供电、永磁同步电机(Permanent Magnet Synchronous Motor, PMSM)作为驱动电机、模型预测算法(Model Predictive Control, MPC)为控制算法的扭矩扳手的研究。利用遗传算法对永磁电机进行优化设计,以减小电机的重量,提高电机的转矩密度。而模型预测算法的实现,则在满足扭矩控制精度的前提下,进一步提高了动态响应。对于扭矩控制的仿真,验证了基于锂电池、永磁同步电机和模型预测控制的扭矩扳手的良好性能。

The fastening of transmission tower bolts is particularly important for the engineering efficiency and reliability of the tower.Therefore,the performance of bolting torque wrench for transmission tower becomes particularly important.Therefore,in order to reduce the weight and realize portability,it proposes the structure based on high power density lithium battery power supply,permanent magnet synchronous motor and model predictive control for bolting torque wrench.The genetic algorithm is adopted for the optimal design of permanent magnet motor in order to reduce the weight and improve the torque density.The implementation of the model predictive control further improves the dynamic response and satisfies the torque precision.The simulation validates the high performance of the proposed bolting torque wrench based on permanent magnet synchronous motor and model predictive control.