【摘要】 针对高频电压驱动下大功率电动式扬声器控制精度不足的问题，设计了一种基于D分解方法的分数阶比例-积分-微分(proportion-integration-differentiation, PID)控制器，提出了一种高效的控制器参数整定策略，给出了一种新的模型参数误差对控制器鲁棒性影响的计算方法。将所设计的控制器应用于高频信号驱动的电动式扬声器模型进行测试。实验结果显示，与传统控制器相比，新设计的分数阶PID控制器在调节时间上减少了6.07 ms,在峰值时间上减少了1.03 ms,稳态相对误差降低了0.567 5%。此外，控制系统的鲁棒性显著提高，只保留一个敏感频率点，并且鲁棒性界的极小值提升了9.06‰。这些改进显著提升了电动式扬声器的控制效果，为大功率高频驱动设备的控制提供了新的解决方案。更多还原

【Abstract】 To address the issue of insufficient control accuracy in high-power electrodynamic speakers driven by high-frequency voltage, a fractional-order PID controller based on the D decomposition method was designed. An efficient controller parameter tuning strategy was proposed, and a new calculation method for the impact of model parameter errors on the controller’s robustness was introduced. The designed controller was applied to a high-frequency signal-driven electrodynamic speaker model for testing. Experimental results show that compared with traditional controllers, the newly designed fractional-order PID controller reduced settling time by 6.07 ms, peak time by 1.03 ms, and steady-state relative error by 0.567 5%. Additionally, the robustness of the control system was significantly improved, with only one sensitive frequency point retained, and the minimal value of the robustness boundary was increased by 9.06‰. These improvements significantly enhanced the control performance of the electrodynamic speaker, providing a new solution for the control of high-power high-frequency drive systems.更多还原