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Design and performance analysis of a dual-variable electrohydrostatic actuator for aerospace application

机译：航空航天双变量电动静液压执行机构的设计与性能分析

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摘要

In the field of more electric aircraft, electrohydrostatic actuator (EHA) is becoming more and more attractive because of its specific benefits for saving maintenance costs and improving system flexibility. This communication presents a dual-variable prototype of EHA, which can be driven by variable pump/variable motor (VPVM). Firstly, the schematic diagram of VSVP-EHA is presented, and then the physical effects are considered in the mathematic model by using model-based systems engineering approach. Then the control strategy consisting of PID and amended constant-frequency switch in hysteresis current control is proposed. System-level simulation model is built and implemented by co-simulation process in Matlab/Simulik and LMS-AMESim environment. Finally, a particular focus is put on position control performance, a series of simulation and experimental results show the expected working principle and desired performance.
机译：在更多的电动飞机领域，静液压致动器（EHA）变得越来越有吸引力，因为它具有节省维护成本和提高系统灵活性的特定优势。该通信提供了EHA的双变量原型，可以由可变泵/可变电动机（VPVM）驱动。首先给出了VSVP-EHA的示意图，然后采用基于模型的系统工程方法在数学模型中考虑了物理效应。提出了由PID和恒频开关修正的滞环电流控制策略。在Matlab / Simulik和LMS-AMESim环境中，通过协同仿真过程构建并实现了系统级仿真模型。最后，将重点放在位置控制性能上，一系列仿真和实验结果显示了预期的工作原理和所需的性能。

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