Intro
Preface
CCIE2023 Organizing Committee
Contents
Electrical, Electronic Engineering and Automation
Statistical Studies of Acoustic Signals Measurements in Diagnostics of Power Transformers
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusion
References
Study of the Resonance Phenomena in Three-Phase Power Lines Supplying Non-traction Railway Consumers
1 Introduction
2 Materials and Methods
3 Results and Discussion
4 Conclusion
References
The Design and Implementation of Low Voltage DC Carrier Chip and System

1 Introduction
2 The Structure of the Low Voltage Carrier System Proposed
2.1 Analysis of Operating Voltage and Power Consumption
2.2 Level Conversion Circuit of the Central Control Module
2.3 System Communication Logical Code Stream
3 Design of Receiver Chip
3.1 Power Supply Module
3.2 Data Conversion Module
3.3 Receiver Chip Overall Simulation and Performance Parameters
4 System Verification
5 Summary
References
Fault Location of HVDC Transmission Line Based on VMD-TEO
1 Introduction
2 VMD Principle and Algorithm
2.1 Basic Principles of VMD

2.2 VMD Algorithm Process
2.3 Teager Energy Operator
2.4 VMD-TEO Traveling Wave Detection Method
2.5 Two-Terminal Traveling Wave Ranging Algorithm
3 Simulation and Result Analysis
3.1 Set Up the Simulation Model
3.2 Simulation Validation
4 Conclusion
References
Design of Switching Power Supply for Micro Arc Oxidation Process
1 Introduction
2 Overall Scheme Design
3 Main Circuit Design
3.1 Input Circuit Design
3.2 Flyback Conversion Circuit Design
3.3 Output Circuit Design
4 Control Circuit Design

4.1 Control Chip Selection and Peripheral Circuit Design
4.2 Optocoupler Isolation Circuit Design
4.3 Implementation of Closed Loop Control
5 Test and Analysis
5.1 Output Voltage Test and Accuracy Analysis
5.2 Output Current Test and Power Analysis
5.3 Efficiency Analysis
5.4 Ripple Test
5.5 Practical Use Test
6 Conclusion
References
Condition Monitoring System of Key Equipment for Beamline in HLS Based on Multi-source Information Fusion
1 Introduction
2 Design Scheme
2.1 Overall Architecture
2.2 Data Acquisition Control Unit

3 The Monitoring Software of Host Computer
4 Conclusion
References
A High Performance Control Method of PMSM
1 Introduction
2 Flux Performance Analysis of Traditional DTC
3 Problems of Switch Table in Traditional DTC
4 DTC Based on Twelve Vectors and Its Performance
4.1 DTC Based on Twelve Vectors
4.2 Performance Analysis of Stator Flux
5 Experimental Results and Analysis
6 Conclusion
References
A Dynamic Association Analysis Model Based on Maintenance Sequence for Railway Traction Power Supply System
1 Introduction
2 Operating Data Preprocessing