Abstract
In order to suppress the zero sequence circulating currents (ZSCCs) between parallel operating three level voltage source inverters with common AC and DC buses, a common
mode voltage reduction PWM (CMVR-PWM) technique and neural point potentials (NPPs) control based method is proposed in this paper. An equivalent model of ZSCC is developed, and two excitation sources of ZSCC, differences of common mode voltages (CMVs) and NPPs between paralleled inverters, are analyzed. A CMVR-PWM method is investigated to reduce the CMV, and a simple electric circuit is adopted to control the NPPs. With this two strategies, ZSCCs between parallel inverters can be eliminated effectively. This strategy has the advantage of without carrier synchronization and can be utilized to parallel operating inverters with different types of filter. Simulation
result validate the proposed ZSCC elimination schemes.
mode voltage reduction PWM (CMVR-PWM) technique and neural point potentials (NPPs) control based method is proposed in this paper. An equivalent model of ZSCC is developed, and two excitation sources of ZSCC, differences of common mode voltages (CMVs) and NPPs between paralleled inverters, are analyzed. A CMVR-PWM method is investigated to reduce the CMV, and a simple electric circuit is adopted to control the NPPs. With this two strategies, ZSCCs between parallel inverters can be eliminated effectively. This strategy has the advantage of without carrier synchronization and can be utilized to parallel operating inverters with different types of filter. Simulation
result validate the proposed ZSCC elimination schemes.
| Original language | English |
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| Title of host publication | Proceedings of IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society |
| Number of pages | 6 |
| Publisher | IEEE Press |
| Publication date | Oct 2016 |
| Pages | 2277 - 2282 |
| ISBN (Electronic) | 978-1-5090-3474-1 |
| DOIs | |
| Publication status | Published - Oct 2016 |
| Event | 42nd Conference of the Industrial Electronics Society, IECON 2016: 42nd Annual Conference of the IEEE Industrial Electronics Society - Palazzo dei Congressi, Florence, Italy Duration: 24 Oct 2016 → 27 Oct 2016 http://www.iecon2016.org/?jjj=1471434927195 http://www.iecon2016.org/ |
Conference
| Conference | 42nd Conference of the Industrial Electronics Society, IECON 2016 |
|---|---|
| Location | Palazzo dei Congressi |
| Country/Territory | Italy |
| City | Florence |
| Period | 24/10/2016 → 27/10/2016 |
| Sponsor | IEEE Industrial Electronics Society (IES), Institute of Electrical and Electronics Engineers (IEEE) |
| Internet address |