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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Li Zhang Haibing Hu Lanlan Feng Yan Xing Hongjuan Ge Kai Sun |
| Copyright Year | 2011 |
| Description | Author affiliation: Jiangsu Key Laboratory of New Energy Generation and Power Conversion, NUAA, Nanjing, 210016, China (Li Zhang; Haibing Hu; Lanlan Feng; Yan Xing; Hongjuan Ge) || State Key Lab of Power Systems, Department of Electrical Engineering, Tsinghua University, Beijing 10084, China (Kai Sun) |
| Abstract | A novel control to improve the European efficiency for modular grid-connected PV generation system is proposed. The modular inverters in parallel operation share both the dc and ac bus. Two DC bus voltage regulators with different output limits are employed in each inverter module, based on the inherent relationship of dc bus voltage and generation power. And the suitable one of the regulators is enabled naturally by the PV power to run the inverter at the highest efficiency point as the first choice, and at the full load point only if the PV power is high enough. As a result the European efficiency of the system is improved with no additional hardware cost. The operational principle of the system is analyzed in detail with the implementation for the control and design guideline for key parameters given. The analysis is verified with both the state-steady and dynamic experimental results. And the tested European efficiency of the system is improved by 0.43%. |
| Starting Page | 3093 |
| Ending Page | 3098 |
| File Size | 1522376 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781612849690 |
| ISSN | 1553572X |
| e-ISBN | 9781612849720 |
| DOI | 10.1109/IECON.2011.6119804 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-11-07 |
| Publisher Place | Australia |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Inverters Voltage control Regulators Europe Steady-state Hardware |
| Content Type | Text |
| Resource Type | Article |
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