LMM: A Fixed-Point Linear Mapping Based Approximate Multiplier for IoT

Wu, Yongren; Wen, Chenyi; Yin, Xunzhao; Zhuo, Cheng

doi:10.1007/s11390-023-2572-8

J. Comput. Sci. Technol.

2023

DOI: 10.1007/s11390-023-2572-8

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LMM: A Fixed-Point Linear Mapping Based Approximate Multiplier for IoT

Yongren Wu

Chenyi Wen

Xunzhao Yin

et al.

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2024

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FPGA-Based Speed Control Strategy of PMSM Using Improved Beetle Antennae Search Algorithm

Wu,

Zhang,

Zhang

2024

Energies

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To improve performance in terms of overshoot and motor response speed when a permanent-magnet synchronous motor (PMSM) with a proportional–integral (PI) controller is subjected to external disturbances, this paper proposes a speed control strategy based on an enhanced Beetle Antennae Search algorithm, which allows for adjustable parameters of the PI controller within a certain range. Firstly, to enhance the global and local search capabilities of each individual beetle, the step size was improved by linearly decreasing it. Secondly, a simulation model of a PMSM closed-loop control system was built to verify the effectiveness of the improved Beetle Antennae Search (BAS) algorithm. Finally, a linear feedback shift register model that generates four random numbers was developed on a field-programmable gate array (FPGA). The improved BAS algorithm for the PMSM control system was implemented on an FPGA using the Verilog hardware description language, and the feasibility of the system was verified through hardware simulation. Additionally, the hardware resource consumption on different FPGA platforms was analyzed. The simulation results demonstrate that the proposed new speed control strategy can reduce the overshoot and improve the motor response speed.

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FPGA-Based Speed Control Strategy of PMSM Using Improved Beetle Antennae Search Algorithm

Wu,

Zhang,

Zhang

2024

Energies

View full text Add to dashboard Cite

show abstract

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LMM: A Fixed-Point Linear Mapping Based Approximate Multiplier for IoT

Cited by 1 publication

References 26 publications

FPGA-Based Speed Control Strategy of PMSM Using Improved Beetle Antennae Search Algorithm

FPGA-Based Speed Control Strategy of PMSM Using Improved Beetle Antennae Search Algorithm

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