| Presentation | 2024-01-19 Experimental Verification of Impedance Balance Method for Reducing Radiated Emission of Three-Phase Inverters Taiki Nishimoto, Yasuhiro Arai, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This report verifies the effectiveness in reducing radiated emission of three-phase inverters by impedance balance method. In the proposed method, impedance elements are added between the output trace of each phase and the bus trace. Furthermore, connecting output traces mutually with additional impedance elements. Then, CM voltage propagation from transistors to each-phase output terminal can be described with bridge-shaped equivalent circuits. Therefore, applying impedance balance method, we can suppress noise propagation from each transistor to all output terminals simultaneously when the bridge circuits are balanced. Implementing the impedance elements on an evaluation board of the three-phase inverter, we confirmed the CM current reduction by up to 31.5 dB. Furthermore, the radiated emission was verified to be suppressed by up to 22 dB through the measurement in an anechoic chamber. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Three-Phase Inverter / Impedance Balance / EMC / Common-Mode Noise / Radiated Emission |
| Paper # | EMCJ2023-97 |
| Date of Issue | 2024-01-12 (EMCJ) |
| Conference Information | |
| Committee | EMCJ |
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| Conference Date | 2024/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kimihiro Tajima(NTT-AT) |
| Vice Chair | Yoshitaka Toyota(Okayama Univ.) |
| Secretary | Yoshitaka Toyota(Hokkaido Univ.) |
| Assistant | Kenji Ogata(ADOX) / Taiki Nishimoto(Panasonic Industry) / Tadatoshi Sekine(Shizuoka Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Compatibility |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Experimental Verification of Impedance Balance Method for Reducing Radiated Emission of Three-Phase Inverters |
| Sub Title (in English) | |
| Keyword(1) | Three-Phase Inverter |
| Keyword(2) | Impedance Balance |
| Keyword(3) | EMC |
| Keyword(4) | Common-Mode Noise |
| Keyword(5) | Radiated Emission |
| 1st Author's Name | Taiki Nishimoto |
| 1st Author's Affiliation | Panasonic Industry Co., Ltd.(Panasonic Industry) |
| 2nd Author's Name | Yasuhiro Arai |
| 2nd Author's Affiliation | Panasonic Industry Co., Ltd.(Panasonic Industry) |
| Date | 2024-01-19 |
| Paper # | EMCJ2023-97 |
| Volume (vol) | vol.123 |
| Number (no) | EMCJ-346 |
| Page | pp.pp.55-60(EMCJ), |
| #Pages | 6 |
| Date of Issue | 2024-01-12 (EMCJ) |