Abstract
The technology shift from 1000-V to 1500-V DC voltage can reduce the installation cost of Photovoltaic (PV) systems to a large extent. However, the increased DC-link voltage also imposes a challenge to PV inverters, and thus, it requires careful consideration in the design phase and the control in operation. In this context, this paper evaluates the thermal performance of two-level and three-level 1500-VDC single-stage PV inverters under constant power generation (CPG) operation. A 160-kW PV system and its operating conditions have been defined for comparison. Three IGBT modules from a leading manufacturer have been selected for different inverter topologies. The thermal performance evaluation of the 1500-VDC PV inverters under CPG operation conditions has been carried out through PLECS modeling. This evaluation can be used for topology and component selection of 1500-VDC PV inverters and improving their operation with better thermal performance.
| Original language | English |
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| Title of host publication | Proceedings of 2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE) |
| Number of pages | 5 |
| Place of Publication | Aswan City, Egypt |
| Publisher | IEEE Press |
| Publication date | Oct 2019 |
| DOIs | |
| Publication status | Published - Oct 2019 |
| Event | 2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE) - Aswan City, Egypt Duration: 23 Oct 2019 → 25 Oct 2019 |
Conference
| Conference | 2019 IEEE Conference on Power Electronics and Renewable Energy (CPERE) |
|---|---|
| Country/Territory | Egypt |
| City | Aswan City |
| Period | 23/10/2019 → 25/10/2019 |
Keywords
- Photovoltaic (PV) inverters
- Multi-level inverters
- Constant power generation (CPG)
- Power Loss
- Thermal stress
- Reliability
- Efficiency