Abstract
This paper presents a robust voltage sensorless droop control strategy of microgrid to implement power control in a cost-effective and high-reliable way. Virtual flux (VF) algorithm is first proposed to estimate output voltage of inverters without using voltage measurement. Then, the effect of parameters perturbation on accuracy of voltage estimation is analyzed. Furthermore, the robust voltage sensorless droop control strategy is developed to implement power control based on the proposed voltage estimation in power control loop and voltage control loop. Simulation results show that the proposed droop control strategy is able to perform desirable control performance without using voltage measurement even if the parameters perturbation happens, which thus improves system reliability and reduces operation cost of microgrid.
| Original language | English |
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| Title of host publication | Proceedings of 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) |
| Number of pages | 6 |
| Publisher | IEEE Press |
| Publication date | 2020 |
| Pages | 682-687 |
| Article number | 9367900 |
| ISBN (Print) | 978-1-7281-5302-5 |
| ISBN (Electronic) | 978-1-7281-5301-8 |
| DOIs | |
| Publication status | Published - 2020 |
| Event | 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) - Nanjing, China Duration: 29 Nov 2020 → 2 Dec 2020 |
Conference
| Conference | 2020 IEEE 9th International Power Electronics and Motion Control Conference (IPEMC2020-ECCE Asia) |
|---|---|
| Country/Territory | China |
| City | Nanjing |
| Period | 29/11/2020 → 02/12/2020 |
Keywords
- Voltage sensorless
- AC microgrid
- Parameters perturbation
- Droop control technique
- robustness capability
- Voltage sensor-less droop control
- VF-based voltage estimation