Papers by Keyword: Motor Drive

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Authors: Hao Chen
Abstract: In this paper, a fuzzy switching bang-bang controller-based theoretical bang-bang was designed and implemented in the laboratory and its effectiveness in tracking application has been verified. The key advantage is the ease of the design and flexibility. The ability of the fuzzy bang-bang controller to achieve the tracking process with a high degree of accuracy, even in the presence of external disturbance was illustrated. The sensitivity of the proposed controller to rapid load changes in the external load was verified, and very promising results were observed. Experimental results confirmed the effectiveness of the proposed controller in position tracking and robustness to system parameter variations. The fuzzy switching bang-bang controller showed definite promise for this application due to the ability to combine many control laws together in a simple, intuitive manner.
Authors: Jian Shang, Zhi Zhen Liu, Yan Zhang
Abstract: The Z-source inverter has overcome the limitation of the conventional voltage source inverter and current source inverter and provides a new option for motor drive system. The Z-source inverter has the unique ability of boosting the voltage of the dc source, which has advantages in the motor drive system for electric vehicles where the voltage of the onboard battery is usually lower. Firstly, this paper analyses the speed characteristic of permanent magnet brushless dc motor. Then operation principles and the control method are described and an effective and convenient strategy for generating PWM pluses with shoot-through states based on TMS320F2812 DSP is introduced. At last, the results of this experiment are presented and verify the correctness of the model.
Authors: Ya Bin Men, Yong Jun Li, Xing Min Li, Dong Liang Zhang
Abstract: With XBT automatic project and measurement system, the automatically ordered projection and data collection of six XBT measurement probes can be implemented in the non-artificial intervention. In this paper, the data acquisition and control unit designs of the measurement system are introduced. The following functions implemented in this system include remote projection control, proximal status display, and water temperature collection, storage, and transfer, etc. After experimental verification, this system can not only quickly acquire all sorts of special and severe sea hydrologic conditions, but also can reduce artificial projection costs, so that the projection automation and success rate of XBT probes are enhanced.
Authors: G. Skibinski, D. Braun, D. Kirschnik, R. Lukaszewski
Abstract: This paper investigates utilization of silicon carbide (SiC) Schottky power diodes as inverter Free Wheel Diodes (FWD) in a commercially available standard Econopak module also packaged with latest generation low-loss IGBT silicon. Static and switching characteristics of SiC diodes over standard module operating temperature 25 0C to 125 0C (298 0K - 398 0K) are measured. Module Turn-on, Turn-off and conduction losses vs. frequency are calculated and measured for three phase motor drive operation. Measurements are compared to standard modules using all Silicon (Si) IGBT- diode. System benefits justifying the increased SiC diode cost, such as EMI reduction, increased efficiency, reduced magnetic filter volume and reduced cooling requirements at higher allowable switching frequencies is investigated.
Authors: Hong Cheng Huang, Yi Zhang, Heng Deng
Abstract: The disturbance observer is a specific method of designing a two degree of freedom control structure to achieve insensitivity to modeling error and disturbance rejection. It has been successfully applied in a variety of motion control applications. In motion control, the major sources of uncertainties are friction, inertia, and external disturbances. These uncertainties should be taken into account by any robust motion controller. In this paper, this element is a PD (proportional-derivative) controller. The disturbance observer proves its advantages through the simulation and experiments. With disturbance observer, better tracking performance can be achieved with less control energy.
Authors: Jun Hui Wu, Tong Di Qin, Jie Chen, Kai Yan Lin, Hui Ping Si, Chi Bin Zhang
Abstract: Hardware circuit design process with the motion control system of the traverse robot was described, including the motor drive module and the feedback module with location information. A large number of experiments showed that the modules could be well applied to the platform of the traverse robot.
Authors: Samantha Reese, Kelsey Horowitz, Timothy Remo, Margaret Mann
Abstract: With the growth in wide bandgap (WBG) semiconductors, specifically Silicon Carbide (SiC), the technology has matured enough to highlight a need to understand the drivers of manufacturing cost, regional manufacturing costs, and plant location decisions. Further, ongoing research and investment, necessitates analytical analysis to help inform development of wide bandgap technologies. The paper explores the anticipated device, module, and motor drive cost at volume manufacturing. It additional outlines the current regional contributors to the supply chain and proposes how the base models can be used to evaluate the cost reduction potential of proposed research advances.
Authors: Xiao Jie Chen
Abstract: The synchronously rotating vector components of the stator current isq and isd are controlled independently to control the torque and the rotor flux, respectively. It can be shown that rotor flux orientation in contrast to stator flux orientation tends to give true decoupling control. Within the synchronous current, the respective counter EMF (Electro Motive Force) signals can be added (or subtracted) to enhance the current loop response. The unit vector signal thetas that transforms the synchronously rotating stator voltage into stationary frame signals has been generated from the speed signal and slip signal which is a function of isq.
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