Electromagnetic Compatibility of Electric Vehicle

Preface
Contents
1 Introduction
	1.1 Overview
	1.2 EMC Problems of EVs
		1.2.1 EMC Problems of Motor Drive System
		1.2.2 EMC Problems of DC-DC Converter System
		1.2.3 EMC Problems of Wireless Charging System
		1.2.4 EMC Problem of Vehicle Controller
		1.2.5 EMC Problems of Battery Management System (BMS)
		1.2.6 Vehicle EMC Requirements
	1.3 Content Introduction
	References
2 Electromagnetic Compatibility Foundation of New Energy Vehicles
	2.1 Overview
	2.2 EMC of New Energy Vehicle
		2.2.1 Electrical Infrastructure
		2.2.2 Electromagnetic Compatibility
	2.3 Theoretical Basis of Electromagnetic Compatibility
		2.3.1 Electromagnetic Interference Source
		2.3.2 Coupling Path
	2.4 EMC Design
		2.4.1 High Performance Electrical and Electronic Architecture Modeling
		2.4.2 EMC Modeling and EMC Design
	2.5 EMI Suppression Measures
		2.5.1 EMI Suppression Technology
		2.5.2 EMI Suppression of Key Components
	References
3 EMI Prediction and Suppression of Motor Drive System
	3.1 Overview
	3.2 EMI Mechanism of Motor Drive System
		3.2.1 Conducted Emission Test of Motor Drive System
		3.2.2 IGBT EMI Source
		3.2.3 EMI Coupling Path
	3.3 EMI Modeling of Motor Drive System
		3.3.1 Modeling and Simulation of EMI in Motor Drive System
		3.3.2 Co-simulation of Motor Drive System
	3.4 Spice Equivalent Circuit Modeling of Electromagnetic Emission of Electric Drive System Based on Measurement
		3.4.1 Overview of Modeling Methods
		3.4.2 Construction of the Equivalent Circuit
		3.4.3 Validation of the Complete Model
		3.4.4 System Resonance Suppression Method
		3.4.5 Conclusion
	3.5 EMI Power Filter
		3.5.1 Design of High-Voltage Input Port Filter
		3.5.2 Design of Filter Circuit Based on Resonance Suppression
		3.5.3 Design of EMI Filter for HV DC Power Supply of Motor Controller
		3.5.4 Design of Air-Core Inductor EMI Filter for High-Voltage DC Power Supply
	3.6 Electromagnetic Disturbance Test
		3.6.1 Electromagnetic Disturbance Test Platform
		3.6.2 Conducted Emission-Voltage Method
		3.6.3 Conducted Emission-Current Probe Method
		3.6.4 Coupling of LV Power Lines to HV Power Lines
		3.6.5 Conducted EMI Suppression
		3.6.6 Voltage and Current of Motor Drive System DC and AC Power Lines
		3.6.7 The Influence of Speed and Torque on Conducted Disturbance Voltage and Current
		3.6.8 Electromagnetic Radiation Test
		3.6.9 Conducted Disturbance Voltage DM and CM Separation Test
	References
4 EMI Prediction and Suppression of DC-DC Converter
	4.1 Overview
	4.2 Conducted Emission Test of DC-DC Converter
		4.2.1 Isolated Full-Bridge HV/LV Voltage DC-DC Converter Structure
		4.2.2 Test Setup for the Conducted EMI
	4.3 EMI Prediction of DC-DC Converter
		4.3.1 EMI Source
		4.3.2 The Conducted Emission High-Frequency Equivalent Circuit of DC-DC Converter System
		4.3.3 EMI Coupling Path
		4.3.4 Conducted EMI Prediction Through Simulation
	4.4 EMI Filter of High Voltage Power Supply
		4.4.1 Design of High Voltage Input Port EMI Filter
		4.4.2 Filter Circuit Design Based on Resonance Point Suppression
	4.5 Radiated Emission
		4.5.1 Theoretical Analysis
		4.5.2 Radiated Emission Measurement
	4.6 Summary
	References
5 Wireless Charging System Electromagnetic Safety and Electromagnetic Compatibility
	5.1 Overview
	5.2 Wireless Charging System Structure
		5.2.1 System Structure
		5.2.2 System Model
		5.2.3 System Performance Simulation
	5.3 Principle of the Wireless Charging
		5.3.1 Transmission Power
		5.3.2 Efficiency
		5.3.3 Offset Characteristics
		5.3.4 Effect of Offset on Efficiency
	5.4 Magnetic Field Distribution
		5.4.1 Vehicle Model
		5.4.2 Distribution of Magnetic Field Test Points
		5.4.3 Coupling Coil Mutual Inductance at Offset
		5.4.4 Magnetic Field Distribution
		5.4.5 Magnetic Induction Strength Measurement
	5.5 Modeling and Suppression of Power Line Conducted Electromagnetic Interference
		5.5.1 Interference Source
		5.5.2 Electromagnetic Interference Mechanism
		5.5.3 Conducted Interference Prediction
		5.5.4 EMI Filter
		5.5.5 Conducted Disturbance Voltage Measurement
		5.5.6 Harmonics of Public Power Supply Lines
		5.5.7 Harmonic Analysis
		5.5.8 Harmonics of Traditional Rectifier Filter Booster Circuit System
		5.5.9 Harmonics Using PFC Circuit System
		5.5.10 System Harmonic Suppression Method
	5.6 Electromagnetic Radiation of Secondary Side Circuit of Wireless Charging System
		5.6.1 Radiation Emission System Modeling
		5.6.2 Radiated Emission from Secondary Charging Cable
		5.6.3 Radiated EMI Suppression
	References
6 Signal Integrity and Electromagnetic Compatibility of Vehicle Controller
	6.1 Overview
	6.2 Function and Structure of Vehicle Controller
	6.3 Hardware EMC Design of Vehicle Controller
		6.3.1 Power Line Electromagnetic Immunity
		6.3.2 PCB Power Integrity
		6.3.3 Signal Integrity Design
	6.4 Power Distribution Network Equivalent Circuit
		6.4.1 Equivalent Circuit of Chip Power Distribution Network
		6.4.2 Lumped Parameter Model of Power Distribution Network for Ethernet Chip
	6.5 PCB Decoupling Capacitor Optimization Method
		6.5.1 The Impedance of the PCB Power Distribution Network of the Vehicle Controller
		6.5.2 PDN Decoupling Capacitor Optimization
		6.5.3 Impedance Verification in Frequency Domain
	6.6 Modeling and Analysis of PCB Board Signal Integrity
		6.6.1 Vehicular Ethernet Signal and CAN Bus Signal Spectrum
		6.6.2 Reflection Modeling and Simulation
		6.6.3 Crosstalk Modeling and Simulation
	6.7 PCB Plate Electromagnetic Radiation
		6.7.1 Electromagnetic Radiation Mechanism
		6.7.2 PCB Electromagnetic Radiation
	6.8 Conducted EMI Suppression of Power Line of Ethernet Vehicle Controller
7 Electromagnetic Compatibility of Battery Management System
	7.1 Summary
	7.2 BMS System Function and Structure
	7.3 PCB Decoupling Capacitor Power Distribution Network
		7.3.1 Optimal Design Method of Decoupling Capacitor
		7.3.2 Decoupling Capacitor Placement
		7.3.3 Analysis of Power Plane Resonance
	7.4 Clock Signal
		7.4.1 Electromagnetic Interference Mechanism
		7.4.2 Near Field Scanning Prediction
		7.4.3 Clock Interference Signal Suppression
		7.4.4 BMS System Electromagnetic Radiation Emission Test
	7.5 DC-DC Chip Switching Noise
		7.5.1 Switching Noise Mechanism
		7.5.2 Electromagnetic Interference Model Prediction
		7.5.3 DC-DC Interference Suppression Method
	7.6 Anti-interference Analysis of CAN Bus
		7.6.1 Electromagnetic Interference of CAN Bus Circuit
		7.6.2 Design of Anti-interference Circuit of CAN Bus
	7.7 PCB Electromagnetic Radiation
8 Measurement, Diagnosis and Suppression of Vehicle Electromagnetic Radiation
	8.1 Overview
	8.2 Electromagnetic Radiation of Passenger Car
		8.2.1 Vehicle Radiation Emission Test
		8.2.2 Vehicle Radiation Emission Suppression
	8.3 Electromagnetic Radiation of Commercial Vehicles
		8.3.1 Vehicle Electromagnetic Radiation Test
		8.3.2 Diagnosis of Electromagnetic Disturbance Source
		8.3.3 Vehicle Radiated Electromagnetic Interference Suppression
	8.4 EMI Diagnosis Method of Whole Vehicle
	8.5 EMI Measurement on Real Vehicle
		8.5.1 Frequency Domain Characteristics of EMI
		8.5.2 Time Domain Characteristics of EMI
	References