Renjie Hu

An Easy-to-Hard Curriculum Learning Framework for Fast Production Cost Minimization Simulation

Zishan Guo, Chong Qu, Tao Qian, Qinran Hu et autres

The production cost minimization (PCM) problem in power systems involves numerous binary variables, resulting in prolonged solving times and a trade-off between accuracy and computational efficiency, affecting the economic viability of operations. Our previous research has explored algorithmic enhancements using machine learning …

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An improved SVPWM neutral-point control strategy for plasma generator applications

Zhe Yang, Jing Xiao, Caida Cai, Renjie Hu

This paper investigates the neutral-point potential (NPP) imbalance issue in three-level neutral-point-clamped (NPC) converters under dynamic plasma generator loads. To address this challenge,an improved space vector pulse-width modulation (SVPWM) strategy is proposed to achieve both high output power and low harmonic distortion. …

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A Cloud-Edge-End Collaboration Framework for Fixed-Time Distributed Optimization of Virtual Power Plants

Kai Kang, Nian Shi, Keqi Zhang, Si Cai et autres

As the power grid expands, concerns about system computation speed and information privacy are becoming more critical. While distributed optimization methods protect individual privacy effectively, they struggle with computational efficiency in complex topologies. To address these issues, this paper proposes a cloud–edge–end …

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Quaternion Convolutional Neural Networks for Image Classification

Renjie Hu, Leimin Wang, Guanghui Jiang, Xiaofang Hu et autres

In recent years, real-valued neural networks have made significant progress in computer vision tasks such as image classification, object detection, and semantic segmentation. However, traditional convolutional neural networks (CNNs) struggle to effectively capture complex relationships between channels when handling multi-channel data with …

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Three-Level All-SiC High-Frequency High-Voltage Plasma Power Supply System

Kaida Cai, Jing Xiao, Zhe Yang, Renjie Hu

Plasma power supplies are extensively utilized in various manufacturing and medical industries. Addressing the challenges of high-voltage and high-temperature resistance in current plasma power supply systems under high-frequency conditions, this study proposes a novel design method for an all-SiC high-frequency high-voltage plasma …

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Exploratory Study on the Application of Image-Generating AI in Fashion Design Education : Using the Sketch-to-Image Method

Suhan Yu, Renjie Hu, Ju‐Young Shin

This study aims to explore the increasing use of artificial intelligence (AI) in the fashion industry and how it can be integrated into existing fashion processes and design education. The research methodology was divided into two phases: an exploratory case study and …

A novel approach for contactless heart rate monitoring from pet facial videos

Renjie Hu, Yu Miao Gao, Guoying Peng, Hongyu Yang et autres

Introduction: Monitoring the heart rate (HR) of pets is challenging when contact with a conscious pet is inconvenient, difficult, injurious, distressing, or dangerous for veterinarians or pet owners. However, few established, simple, and non-invasive techniques for HR measurement in pets exist. Methods: …

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Stable Relay Learning Optimization Approach for Fast Power System Production Cost Minimization Simulation

Zishan Guo, Qinran Hu, Chong Qu, Tao Qian et autres

Production cost minimization (PCM) simulation is commonly employed for assessing the operational efficiency, economic viability, and reliability, providing valuable insights for power system planning and operations. However, solving a PCM problem is time-consuming, consisting of numerous binary variables for simulation horizon extending …

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Contactless vital signs monitoring in macaques using a mm-wave FMCW radar

Jiajin Zhang, Renjie Hu, Lichang Chen, Yu Miao Gao et autres

Heart rate (HR) and respiration rate (RR) play an important role in the study of complex behaviors and their physiological correlations in non-human primates (NHPs). However, collecting HR and RR information is often challenging, involving either invasive implants or tedious behavioral training, …

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Stable Relay Learning Optimization Approach for Fast Power System Production Cost Minimization Simulation

Zishan Guo, Qinran Hu, Tao Qian, Xin Yu Fang et autres

Production cost minimization (PCM) simulation is commonly employed for assessing the operational efficiency, economic viability, and reliability, providing valuable insights for power system planning and operations. However, solving a PCM problem is time-consuming, consisting of numerous binary variables for simulation horizon extending …

Optimal Bidding Strategy for Data Center Participation in Day-Ahead Electricity Market

Yiwu Ge, Yuanshi Zhang, Qinran Hu, Shunjiang Wang et autres

In order to maximize the flexible regulation potential of load resources, this paper studies the participation of data centers in day-ahead electricity market. Through the optimized scheduling model of the data center cluster based on the spatio-temporal adjustable characteristics of the load, …

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Plasma behavior of a low current orificed hollow cathode using krypton propellant for electric thruster applications

Wei Liu, Renjie Hu, Weizong Wang, Yifei Li et autres

Abstract As a fundamental component, hollow cathodes have been widely used in electric thruster applications. Krypton has become one of the ideal alternative propellants for hollow cathode due to its economy, thus it is vital to understand the basic physical process of …

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