Laboratory Stand "Battery Management and Balancing Using the BMS System"

Technical Specifications

● Power Supply: Single-phase AC220V/50Hz

Standard Configuration

● Battery Pack: 20 pcs Lithium Iron Phosphate Batteries (3.2V/20AH)

● Battery Protector: Ensures safe operation of the battery pack.

● Emergency Switch: Provides immediate shutdown in case of emergencies.

● Intelligent Charging Device: Output 73V/5A, with automatic charging recognition.

● Two Sets of Battery Temperature Sensors: For monitoring battery temperature.

● BMS Management Module: Controls and manages the battery pack's performance.

● BMS Information Display: Provides real-time data on battery status and system parameters.

● Motor Drive Controller: Manages the operation of the DC brushless motor.

● DC Brushless Motor: DC60V/500W, Speed 0~3000rpm.

● Accelerator Pedal Assembly: Simulates real-world driving conditions.

● Ignition Switch: Initiates the system's operation.

● Charging Switch: Controls the charging process of the battery pack.

● Cabinet: Houses all components in a durable and organized structure.

● Oscilloscope: Used for analyzing electrical signals and waveforms.

● Leakage Protection Switch: Ensures safe operation by protecting against electrical leaks.

● Test Cables: Facilitates measurement of electrical signals during experiments.

The laboratory stand "Battery Management and Balancing Using the BMS System" is designed to display and simulate the working process of a power battery pack and its management system.

It provides students with hands-on experience in understanding the principles of BMS operation and electric vehicle battery systems.

Functional Features

1. Battery Pack Simulation:

○ Displays and simulates the operation of a power battery pack and its management system.

2. Charging and Discharging Experiments:

○ Enables users to conduct experiments on battery charging and discharging processes.

3. Parameter Testing:

○ Allows for testing of various battery parameters, including internal resistance, capacity, and discharge curves.

4. Safety Features:

○ Equipped with an emergency switch, leakage protection switch, and battery protector to ensure safe operation during experiments.

5. Interactive Learning Panel:

○ Features an information display for real-time monitoring of BMS data.

6. Motor Control Demonstration:

○ Includes a motor drive controller and DC brushless motor (DC60V/500W) to demonstrate the interaction between the battery system and electric motor.

7. Temperature Monitoring:

○ Two sets of battery temperature sensors provide accurate monitoring of battery temperature during operation.

8. Fault Simulation:

○ Supports fault setting and troubleshooting exercises, allowing students to practice diagnosing and resolving issues in the BMS system.

9. Test Terminals:

○ Equipped with test cables and terminals for measuring electrical signals such as resistance, voltage, current, and waveforms using a multimeter or oscilloscope.

List of Works Performed

General Training Courses:

1. Brief Introduction of Main Components: Study the individual components of the BMS system and their roles in the overall system.

2. Functional Demonstration: Observe the functionality of the BMS system in managing the battery pack.

3. Fault Setting and Troubleshooting: Simulate faults in the BMS system and practice identifying and resolving issues.

4. Signal Testing Experiment: Measure and analyze electrical signals from the BMS system using test terminals and diagnostic tools.

Specific Experiments:

1. Battery Internal Resistance Measurement: Gain knowledge of battery internal resistance and its impact on performance.

2. Battery Capacity Measurement: Learn how to measure the capacity of the battery pack.

3. Basic Discharge Curve Drawing of the Battery: Analyze the basic discharge characteristics of the battery.

4. Analysis of Different Power Discharge Curves: Study the effects of varying power levels on battery discharge curves.

5. Battery Discharge Experiment (Free Combination Circuit): Conduct experiments on custom-designed battery discharge circuits.

6. Constant Voltage Discharge: Understand the principles of constant voltage discharge.

7. BMS Management System Setting: Practice configuring the BMS management system for optimal performance.

8. Motor Voltage Measurement: Measure the voltage supplied to the DC brushless motor.

9. Motor Speed Measurement: Analyze the speed of the DC brushless motor under different conditions.

10. High-Voltage Motor Drive Controller Setting: Develop skills in configuring the high-voltage motor drive controller.

11. High-Voltage Motor Operation Wave Measurement: Use an oscilloscope to analyze the waveforms of motor operation.

12. Electrical Appliance Power Discharge Curve Analysis: Study the discharge characteristics of electrical appliances connected to the battery system.

13. Dynamic and Static Measurement of Accelerator Pedal: Measure the dynamic and static responses of the accelerator pedal assembly.

14. Use of Oscilloscope: Gain practical experience in using an oscilloscope for signal analysis.

15. Wire Connection Measurement Application: Practice measuring electrical signals through wire connections.

16. Battery Constant Voltage and Current Charging: Study the principles of constant voltage and current charging.

17. Constant Voltage Charging: Perform experiments on constant voltage charging processes.

18. Constant Current Charging: Analyze the effects of constant current charging on battery performance.

19. Constant Voltage and Constant Current Charging (Quick Charge): Explore quick charging techniques using combined constant voltage and current methods.

Educational Benefits

● Hands-On Experience: Students gain practical experience by interacting directly with a real BMS system and electric vehicle components.

● Comprehensive Coverage: The trainer covers all essential aspects of electric vehicle battery systems, including their components, working principles, fault diagnosis, and maintenance.

● Simulation Capabilities: Realistic fault simulation and experimental setups enhance problem-solving and diagnostic skills.

● Safety-Oriented Design: Equipped with safety features such as an emergency switch, leakage protection switch, and battery protector to ensure safe operation during experiments.

Conclusion

The laboratory stand "Battery Management and Balancing Using the BMS System" is a cutting-edge educational tool that combines real-world components with advanced simulation capabilities. Its robust design, interactive features, and wide range of functionalities make it an indispensable solution for teaching and training in modern electric vehicle technology and renewable energy systems.