Daqing Gao
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View article: A Review of Physics-Based, Data-Driven, and Hybrid Models for Tool Wear Monitoring
A Review of Physics-Based, Data-Driven, and Hybrid Models for Tool Wear Monitoring Open
Tool wear is an inevitable phenomenon in the machining process. By monitoring the wear state of a tool, the machining system can give early warning and make advance decisions, which effectively ensures improved machining quality and produc…
View article: DiffYOLO: Object Detection for Anti-Noise via YOLO and Diffusion Models
DiffYOLO: Object Detection for Anti-Noise via YOLO and Diffusion Models Open
Object detection models represented by YOLO series have been widely used and have achieved great results on the high quality datasets, but not all the working conditions are ideal. To settle down the problem of locating targets on low qual…
View article: An Anomaly Detection Model Based on CNN-VAE for IoT Devices
An Anomaly Detection Model Based on CNN-VAE for IoT Devices Open
Anomaly Detection on IoT devices is a widely studied task in industry. As deep learning methods developed, they have been a prevailing solution to this task, especially in the certain working condition of lacking anomaly samples. Among all…
View article: Design of a Modular High-Accuracy, High-Voltage Charging Power Supply Prototype
Design of a Modular High-Accuracy, High-Voltage Charging Power Supply Prototype Open
In order to realize the upgrade of the Kicker system for the Heavy Ion Research Facility in Lanzhou, the design of a modular high-accuracy, high-voltage charging power supply based on a full-bridge LC series resonant topology was proposed.…
View article: Status of the HIAF Accelerator Facility in China
Status of the HIAF Accelerator Facility in China Open
The High Intensity heavy-ion Accelerator Facility (HIAF) is under constructed at IMP in China. The HIAF main feature is rapid acceleration of ions in the booster synchrotron ring (BRing) with the ramping rate up to 12 T/s. The challenges a…
View article: Present status of HIRFL complex in Lanzhou
Present status of HIRFL complex in Lanzhou Open
Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low to medium energy. Since the complete of HIRFL-CSR project in 2008, unde…
View article: The digital controller for power supplies in HIAF
The digital controller for power supplies in HIAF Open
High Intensity Heavy Ion Accelerator Facility (HIAF) project has been proposed by Institute of Modern Physics, Chinese Academy of Sciences (IMP) for high power heavy ion researches. Due to the unique requirements of the Booster Ring (Bring…
View article: Design of fast pulse generator for Kicker power supply in HIAF*
Design of fast pulse generator for Kicker power supply in HIAF* Open
Kicker power supply is one of the key components in the injection and extraction system of HIAF (High Intensity Heavy Ion Accelerator Facility, the 12th five-year national big science project). The PFN-Marx generator technology based on so…
View article: Present Status of HIRFL Complex in Lanzhou
Present Status of HIRFL Complex in Lanzhou Open
Heavy Ion Research Facility in Lanzhou (HIRFL) is a cyclotron, synchrotron and storage ring accelerator complex, which accelerates ions of hydrogen to uranium from low to medium energy. Since the complete of HIRFL-CSR project in 2008, unde…
View article: The Digital Controller for Power Supplies in HIAF
The Digital Controller for Power Supplies in HIAF Open
HIAF (High Intensity heavy ion Accelerator Facility) is a project proposed by IMP (Institute of Modern Physics, Chinese Academy of Sciences). This paper designs a digital controller for Bring in HIAF dipole power supplies system, which is …
View article: Research on Commutation and Coordination Control Strategy of Excitation Power Supply Based on Bidirectional Reduced Matrix Converter for Ion Accelerator
Research on Commutation and Coordination Control Strategy of Excitation Power Supply Based on Bidirectional Reduced Matrix Converter for Ion Accelerator Open
The contribution of this paper is putting forward a kind of ion accelerator magnet excitation power supply with bidirectional reduced matrix converter (BRMC) as well as a coordination control strategy with bipolar current space vector modu…
View article: Model predictive control for reduced matrix converter with transformer DC magnetic bias suppression
Model predictive control for reduced matrix converter with transformer DC magnetic bias suppression Open
This study presents a model predictive control (MPC) considering transformer DC magnetic bias for a reduced matrix converter (RMC). The control scheme selects the switching state that minimises the error in the output current and input ins…
View article: Simulation of an Accelerator Pulse Power Supply with an Active Rectifier Using SIMPLORER
Simulation of an Accelerator Pulse Power Supply with an Active Rectifier Using SIMPLORER Open
In this paper, a simulation model of an accelerator pulse power supply with an active rectifier (voltage-type SVPWM rectifier) was set up based on the C-Model function in SIMPLORER 8.1, which is a simulation software belonging to the ANSOF…
View article: Data Mining Applied in Management of Heavy Ion Accelerator Power Supplies
Data Mining Applied in Management of Heavy Ion Accelerator Power Supplies Open
Scientific and effective management of power supplies could reduce the failure rate and improve the efficiency of the heavy ion accelerator. This paper shows how to introduce data mining into the intelligent management of heavy ion acceler…
View article: Status and Upgrades of HIRFL
Status and Upgrades of HIRFL Open
The Heavy Ion Research Facility at Lanzhou (HIRFL) is the only one large scale heavy ion accelerator complex that uses cyclotron (SFC and SSC) as injector, synchrotron (CSRm) for accumulation and post acceleration, storage ring (CSRe) for …