ANPC Three-phase Three-level Inverter
There are three kinds of multi-level inverters (MLI) suitable for medium and large power application, such as neutral point clamped (NPC) with diodes, flying capacitor (FC) and cascade H bridge (CHB). Among them NPC MLI is used popular nowadays. In order to obtain sinusoidal voltage and current from...
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| Main Author: | |
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| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Control and Information Technology
2012-01-01
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| Series: | Kongzhi Yu Xinxi Jishu |
| Subjects: | |
| Online Access: | http://ctet.csrzic.com/thesisDetails#10.13889/j.issn.2095-3631.2012.05.007 |
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| Summary: | There are three kinds of multi-level inverters (MLI) suitable for medium and large power application, such as neutral point clamped (NPC) with diodes, flying capacitor (FC) and cascade H bridge (CHB). Among them NPC MLI is used popular nowadays. In order to obtain sinusoidal voltage and current from the inverter, PWM control is needed. However, practice shows that power loss of power electronic switch devices for NPC MLI is different. For instance, only six external switch devices inside NPC three-phase three-level inverter are able to realize control with PWM, which causes them more loss and higher heating than that of other six internal switch devices. In order to solve above problem and fully develop the potential of multi-level inverter, active neutral point clamped (ANPC) MLI is suggested. The operation principle and PMW control principle of ANPC three-phase three-level inverter are analyzed in the paper. Simulation results show that expected aim is attained, and it has laid a foundation for developing a practical device. |
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| ISSN: | 2096-5427 |