Vector control of hybrid magnetized magnetic gear motor based on improved dragonfly algorithm
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摘要: 针对混合充磁式磁齿轮电机 (HM-MGM)无接触传动时出现振荡和超调的问题，提出一种将改进蜻蜓算法(improved dragonfly algorithm, IDA)与比例积分(proportional-integral, PI)控制相结合，对PI控制器参数整定的方法。通过引入Tent映射初始化群、改进权重系数和引入差分进化算法，实现算法性能的提升；并改进算法的适应度函数，增加可以抑制超调和振荡的惩罚项。基于HM-MGM仿真模型，采用PI、DA-PI和IDA-PI控制方法进行动态仿真对比研究，结果表明：电机在IDA-PI控制下的系统动态响应速度更快，且超调量和稳态误差明显降低，证明了所提策略的有效性。Abstract: Aiming at the problems of oscillation and overshoot in the contactless drive of a hybrid magnetized magnetic gear motor (HM-MGM), a method combining an improved dragonfly algorithm (IDA) with (proportional-integral) PI control was proposed to adjust the PI controller parameters. The performance of the algorithm was improved by introducing Tent map for initialization group, improving weight coefficients and incorporating a differential evolution algorithm. Furthermore, the fitness function of the algorithm was improved by adding a penalty term to suppress overshoot and oscillation. Based on the HM-MGM simulation model, a comparative study was conducted using PI, DA-PI and IDA-PI control methods. The results show that the system under IDA-PI control exhibits a faster dynamic response, with significantly reduced overshoot and steady-state error, thereby validating the effectiveness of the proposed method.
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Key words:
- hybrid magnetization /
- magnetic gear motor /
- inertia weight /
- vector control /
- dragonfly algorithm
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图 3 HM-MGM内外转子矩角特性曲线
Figure 3. HM-MGM internal and external rotor moment and angle characteristic curves
图 5 Logistic和Tent映射粒子区间分布
Figure 5. Logistic and Tent mapping particle interval distribution
图 11 DA和IDA适应度函数值的收敛曲线
Figure 11. Convergence curves of DA and IDA fitness function values
表 1 算法优化结果
Table 1. Algorithm optimization results
算法 平均值 标准差 DA 2.16504 3.38014 DA-Tent 1.85023 1.11285 DA-weight 1.68553 1.23242 DA-diff 1.75434 1.10568 DA-Tent-weight 1.21243 0.47751 DA-Tent-diff 1.15149 0.23354 DA-diff-weight 1.15286 0.21156 IDA 1.00945 0.10855 
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表 2 HM-MGM参数
Table 2. HM-MGM parameters
主要参数 数值 主要参数 数值 定子电阻/Ω 1.2 外转子转动惯量/(kg·m2) 0.007538 功率/kW 0.2 内转子转动惯量/(kg·m2) 0.001540 内转子极对数 2 直轴电感/mH 7.3152 外转子极对数 10 交轴电感/mH 7.3198 调磁块数 12 阻尼系数/(N·m·s) 0.008 传动比 5 永磁体磁链/Wb 0.2864
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