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腰部外骨骼机器人线性自抗扰控制器参数优化
2022-07-30 12:08:00 【米朵儿技术屋】
摘要: 针对腰部外骨骼机器人线性自抗扰控制器参数难以调整的问题,本文提出一种基于天牛须搜索的改进粒子群算法(PSO)。建立腰部外骨骼机器人模型,采用线性自抗扰控制器,进一步引入改进的PSO对其进行参数优化。该算法通过混沌初始化种群,提高粒子执行效率;采用非线性策略调整惯性因子和学习因子,加强粒子的搜索能力;引入天牛须搜索算法与PSO结合,并采用自适应权重,使得粒子可对周边环境进行较好地判断,避免粒子陷入局部最优。分别通过6个测试函数和建立系统评价指标进行仿真实验,结果表明所提出的算法有更好的收敛精度,优化后的控制器具有更好的控制性能。
关键词: 腰部外骨骼机器人 <
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