Self-Sensing Control of Induction Machines based on an Additional Single-Axis Short-Circuited Rotor Winding

基于附加单轴短路转子绕组的感应电机自传感控制

• 批准号: 424944120
• 负责人: Professor Dr.-Ing. Axel Mertens
• 金额: --
• 依托单位: Institut für Antriebssysteme und Leistungselektronik
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2019
• 资助国家: 德国
• 起止时间: 2018-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/424944120?language=en
• 关键词: Self; Sensing; Control; Induction; Machines

With the aid of field-oriented control methods, induction machines (IM) can be employed to design highly dynamic drives of high Control quality when using the appropriate mechanical sensors. Compared to the conventional operation with sensors, sensorless or self-sensing Operation features a lot of advantages, such as saving of cost, volume and maintenance effort as well as operation under extreme environmentalconditions not permitting the use of mechanical sensors. The challenge is to ensure position and speed tracking over the entire speed and frequency range. Up to now, there exist no self-sensing control methods for IM which are applicable down to zero Stator frequency, requiring low magnetization with little losses especially at low torques, and which allow for rotor position estimation. The Focus of the research project is on investigating design methods for a self-sensing control over the entire speed range featuring the aforementioned aspects. The initial point is to investigate a self-sensing control method using the same observer structure for EMF-based and saliency-based estimation. To further improve the quality of self-sensing control, current oversampling and almost complete voltage error compensation of the inverter shall be employed. Another goal is to develop a novel rotor design for IM to increase saliency, in order to facilitate particularly the operation of IM up to zero Stator frequency even at low magnetization. The basic idea of a unified observer structure and a modified rotor design has already been successfully investigated in preliminary work of the applicants done on permanent magnet synchronous machines (PMSM). The major issue of this proposal is to find out if and how these approaches can also be apploed to IM and in how far it is possible to improve self-sensing control of IM. Apart from transferring the aforementioned methods to IM, a method shall be developed to design the rotor with an additional coil with the aim to increase the rotor position-dependent saliency of IM without considerably deteriorating torque and torque ripple as well as efficiency. The aditional coil has to b e considered when modelling the machine for the control. Based on the enhanced model, a self-sensing control shall be investigated, tracking the rotor position by use of the newly applied saliency. Performance and limitations of the novel self-sensing control shall be evaluated in a final step.

借助面向现场的控制方法，使用适当的机械传感器时，可以使用感应机（IM）来设计高控制质量的高度动态驱动器。与传感器的传统操作相比，传感器或自感应操作具有许多优势，例如节省成本，数量和维护工作以及在极端环境条件下的操作，不允许使用机械传​​感器。挑战是确保在整个速度和频率范围内的位置和速度跟踪。到目前为止，IM尚无自感应控制方法，该方法适用于零定子频率，需要低磁化，尤其是在低扭矩下损失的损失很小，并且可以进行转子位置估计。研究项目的重点是研究设计方法，以对以上方面的整个速度范围进行自感应控制。初始点是使用相同的观察者结构来研究一种自感应控制方法，以基于EMF和基于显着性的估计。为了进一步提高自感控制的质量，应采用当前的过度采样和几乎完全的逆变器误差补偿。另一个目标是开发一种新型的转子设计，以提高显着性，以便促进即使在低磁化强度时，尤其是IM的运行，即使IM的运行也达到零。统一观察者结构和改良的转子设计的基本思想已经在申请人对永久磁铁同步机（PMSM）的申请人的初步工作中成功进行了研究。该提案的主要问题是找出是否以及如何将这些方法应用于IM以及改善对IM的自感应控制的可能程度。除了将上述方法转移到IM外，还应开发一种方法来设计转子的额外线圈，以提高转子位置依赖性IM的显着性，而不会大大恶化扭矩和扭矩波纹以及效率。在为控件建模机器时，必须考虑ADITIONAL线圈。基于增强模型，应研究一个自感控制，并通过使用新应用的显着性来跟踪转子位置。新型自感控制的性能和局限性应在最后一步中评估。