# Research on Electromagnetic-Radiated Emission of Multi-in-One Electric Drive System

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## Abstract

**:**

## 1. Introduction

## 2. Modeling of Conducted Noise of MEDS

## 3. Radiated Emission Modeling and Interference Suppression

#### 3.1. Radiated Emission Modeling

#### 3.2. Analysis of Typical Vehicle EMI Suppression Methods

#### 3.2.1. Interference Suppression by Filter Circuit

_{cm}) of the electric drive system is shown in Figure 4. It is shown that after adding the high-frequency filter circuit, the I

_{cm}(blue curve) on the HVDC cable of the MEDS is significantly lower. As common-mode interference current is the main source of radiated emission at high frequency; the radiated emission of MEDS with filter circuit will also be reduced.

#### 3.2.2. Interference Suppression for Shielded Cables

_{0}is the phase constant $\mathsf{\omega}\sqrt{{\mu}_{0}{\epsilon}_{0}}$;$\text{}\mathrm{in}\text{}\mathrm{free}\text{}\mathrm{space},\text{}\mu ={\mu}_{0}\approx 4\pi \times {10}^{-7}H/m\text{};\mathsf{\epsilon}={\epsilon}_{0}\approx 8.85\times {10}^{-12}F/m;$ j is $\sqrt{-1}$.

## 4. Results Analysis

#### 4.1. Verification of the Conducted Emission Model of MEDS

#### 4.2. Simulation Results of Shielded Cable

#### 4.3. Simulation Results of EV-Radiated Emission

#### 4.3.1. Radiated Emission of EV without Any Suppression

#### 4.3.2. Radiated Emission of EV Using a π-Type Filter

#### 4.3.3. Radiated Emission of EV Using a π-Type Filter and Shielded Cables

## 5. Conclusions

## Author Contributions

## Funding

## Institutional Review Board Statement

## Informed Consent Statement

## Data Availability Statement

## Acknowledgments

## Conflicts of Interest

## References

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**MDPI and ACS Style**

Tan, R.; Ye, S.; Yu, C.; Deng, C.; Zhou, A.
Research on Electromagnetic-Radiated Emission of Multi-in-One Electric Drive System. *World Electr. Veh. J.* **2021**, *12*, 127.
https://doi.org/10.3390/wevj12030127

**AMA Style**

Tan R, Ye S, Yu C, Deng C, Zhou A.
Research on Electromagnetic-Radiated Emission of Multi-in-One Electric Drive System. *World Electric Vehicle Journal*. 2021; 12(3):127.
https://doi.org/10.3390/wevj12030127

**Chicago/Turabian Style**

Tan, Ruoxi, Shangbin Ye, Cheng Yu, Chenghao Deng, and Anjian Zhou.
2021. "Research on Electromagnetic-Radiated Emission of Multi-in-One Electric Drive System" *World Electric Vehicle Journal* 12, no. 3: 127.
https://doi.org/10.3390/wevj12030127