Dynamic Wireless Power Transfer for Logistic Robots

Tampubolon, Marojahan; Pamungkas, Laskar; Chiu, Huang‐Jen; Liu, Yu-Chen; Hsieh, Yao‐Ching

doi:10.3390/en11030527

Cited by 27 publications

(20 citation statements)

References 17 publications

(36 reference statements)

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“…Wireless power transfer (WPT) is a promising technology that eliminates the need for transmission cables leading to electrical devices and makes power transfer more convenient. WPT technology has recently attracted increased attention in industry and academia where it has been widely applied to areas like underwater systems [1,2], biomedical implants [3][4][5][6], mining devices [7,8], smart robots [9], and electronic equipment [7]. With the increasing demands for embedding multiple electrical devices in a WPT system, the technologies in a multiple-receiver wireless power transfer (MRWPT) system are becoming advanced.…”

Section: Introductionmentioning

confidence: 99%

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Cai

Lai

et al. 2020

Energies

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The cross-coupling effect between the induction coils of a multiple-receiver wireless power transfer (MRWPT) system severely weakens its overall performance. In this paper, a time-sharing control strategy for MRWPT systems is proposed to reduce the cross-coupling between receiver coils. An active-bridge rectifier is introduced to the receivers to replace the uncontrollable rectifier to achieve synchronization of the time-sharing control. The synchronization signal generated by an active-bridge rectifier can be directly used to realize the synchronization of time-sharing control and hence saved the traditional zero-crossing point detection circuits for time-sharing circuits. Moreover, the proposed time-sharing system has the advantages of both operating under a resistance-matching condition and providing target output voltage for each receiver. Furthermore, a voltage control strategy was developed to provide both high efficiency and a target output voltage for each receiver. Finally, the simulation and experimental results show that the time-sharing MRWPT system reduced the cross-coupling effect between the receiver coils, and the voltage control strategy provided both a high efficiency and a target output voltage for each receiver.

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Section: Introductionmentioning

confidence: 99%

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Cai

Lai

et al. 2020

Energies

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“…From a largely dominant industrial focus, robotics is rapidly expanding into human environments and is vigorously engaged in new challenges [1,2]. In order to work better in complex situations, these robots are mobile and driven by batteries [3]. Mobile robots are widely used in modern manufacturing systems, while their use is also extending into human daily life [4].…”

Section: Introductionmentioning

confidence: 99%

Energy Modeling and Power Measurement for Mobile Robots

2018

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To improve the energy efficiency of a mobile robot, a novel energy modeling method for mobile robots is proposed in this paper. The robot can calculate and predict energy consumption through the energy model, which provides a guide to facilitate energy-efficient strategies. The energy consumption of the mobile robot is first modeled by considering three major factors: the sensor system, control system, and motion system. The relationship between the three systems is elaborated by formulas. Then, the model is utilized and experimentally tested in a four-wheeled Mecanum mobile robot. Furthermore, the power measurement methods are discussed. The energy consumption of the sensor system and control system was at the milliwatt level, and a Monsoon power monitor was used to accurately measure the electrical power of the systems. The experimental results showed that the proposed energy model can be used to predict the energy consumption of the robot movement processes in addition to being able to efficiently support the analysis of the energy consumption characteristics of mobile robots.

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“…Wireless power transfer (WPT) is a promising technology that has attracted increasing attention in industry and academia. WPT has been applied to biomedical implants [1][2][3][4], underwater power supply systems [5,6], mining equipment [7,8], logistic robots [9], and electronic equipment [7]. The advantages of WPT are as follows: convenience, security, and robustness against complex environments and objects such as water and skin.…”

Section: Introductionmentioning

confidence: 99%

Highly Efficient Target Power Control for Two-Receiver Wireless Power Transfer Systems

Cai

Tang

et al. 2018

Energies

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Multiple-receiver wireless power transfer (MRWPT) systems have revolutionary potential for use in applications that require transmitting power to multiple devices simultaneously. In most MRWPT systems, impedance matching is adopted to provide maximum efficiency. However, for most MRWPT systems, achieving target power levels and maximal efficiency is difficult because the target output power and maximum efficiency conditions are mostly not satisfied. This study establishes a target power control (TPC) strategy to balance providing target transfer powers and operating under high efficiency. This study is divided into the following points: First, this study derives the optimal mutual inductance to verify that it’s difficult for two-receiver wireless power transfer (WPT) system to achieve both maximum efficiency and power distribution simultaneously; Second, this study illustrates that for impedance matching method the mutual inductances play a more important role than equivalent impedances in increasing the system efficiency, and hence system should give priority in improving the mutual inductance as large as possible; Third, this study proposes a simplified system model which helps to derive the analytic solutions of equivalent impedances; Fourth, this study developed a 100-kHz two-receiver WPT system and establishes a TPC strategy for enabling the system to achieve target output power levels with high efficiency; At last, the proposed system is proved to achieve an efficiency level of more than 90 % and satisfies the target output power levels requirements.

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Dynamic Wireless Power Transfer for Logistic Robots

Cited by 27 publications

References 17 publications

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Time-Sharing Control Strategy for Multiple-Receiver Wireless Power Transfer Systems

Energy Modeling and Power Measurement for Mobile Robots

Highly Efficient Target Power Control for Two-Receiver Wireless Power Transfer Systems

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