New Energy Storage Insulation Detection Module

What is a battery insulation fault diagnosis scheme?

An effective insulation fault diagnosis scheme is of great significance in ensuring the operation of the battery pack. In this work, a battery insulation detection scheme based on an adaptive filtering algorithm is proposed. Firstly, an insulation resistance detection scheme based on signal injection is designed.

What is the electric vehicle and insulation detection experimental setup configuration?

The electric vehicle and insulation detection experimental setup configuration is shown in Figure 6. This experiment introduces the battery pack, controller, motor systems, resistive loading, and battery management system (BMS). The BMS is an electronic device that manages the rechargeable battery pack in a system.

What is a battery insulation detection equivalent circuit model?

The battery insulation detection equivalent circuit model, which employs a low-frequency signal injection method in the battery pack, is depicted in Figure 3. The diagram presents the essential configuration of an electric vehicle’s high-power supply, comprising the battery circuit module, inverter, motor, disconnectors, and vehicle chassis.

Is there a real-time insulation resistance detection method based on forgetting factor least squares?

To solve the problems of slow response and the poor estimation accuracy of the insulation resistance under complex vehicle working conditions, a real-time insulation resistance detection method based on the variable forgetting factor least squares algorithm is proposed in this paper.

What is insulation detection method based on square wave voltage signal injection?

An insulation detection method based on square wave voltage signal injection is proposed in Ref. . The Lyapunov observer is used to estimate insulation resistance. To better deal with the system noise, the insulation detection scheme based on the filtering algorithm is proposed in Refs. , .

How to verify the effectiveness of insulation detection scheme?

In order to verify the effectiveness of the proposed insulation detection scheme, the constant voltage variable resistance working condition is set here. The voltage of the battery pack remains constant, and the insulation resistance jumps periodically to simulate a sudden insulation fault.