On the Injection of Sub/Inter-Harmonic Current Components for Active Anti-Islanding Purposes
Abstract
:1. Introduction
2. Results
2.1. Sub/Inter-Harmonics in the PV-Microinverters with a Pseudo dc-Link
2.1.1. Description of a PV-Microinverter with a Pseudo dc-Link and Harmonic Injection Capability
2.1.2. Mathematical Analysis of the Distortion
2.1.3. Simulation Results
2.1.4. Experimental Results
2.2. Analysis of Sub/inter-harmonic and Harmonic Injection in Multiple Inverters
2.2.1. Simulation Results
3. Discussion
4. Materials and Methods
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Description | Value |
---|---|
Inverter | (all the inverters have the same characteristics) |
Output power per inverter | 500 W |
Mh/M1 Iinv,1; Iinv,h | 8% 2.5 A; 0.2 A |
Grid and load specifications | |
Grid Rating | 141 Vrms/50 Hz |
Local load R, L, C | 10 Ω, 12.5 mH, 795.77 μF |
QF | 2.5 |
Description | Value |
---|---|
Interleaved flyback microinverter | |
Output power | 300 W |
DC input voltage (Vdc) | 30 V |
Primary switches (S1, S2) | FCP260N60E |
Secondary side diodes (D1, D2) | HFA15TB60 |
H-bridge switches (SH1–4) | FCP260N60E |
Transformer core | RM12 |
Decoupling capacitor (C) | 2 mF |
Primary inductance | 30 μH |
Turns ratio | 1 |
Leakage inductance | 0.42 μH |
Filter inductance (Lf) | 950 μH |
Filter capacitance (Cf) | 450 nF |
Switching frequency (Primary Switches) | 20 kHz |
Grid and load specifications | |
Grid Rating | 90 Vrms ± 15%/50 Hz |
Local load resistance | 235 Ω |
Electrical equipment | |
Controller | dSpace MicroLabBox |
DC Input Voltage | Delta Electronica SM-3300 |
DC power supply | TENMA 72-10495 |
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Voglitsis, D.; Valsamas, F.; Rigogiannis, N.; Papanikolaou, N. On the Injection of Sub/Inter-Harmonic Current Components for Active Anti-Islanding Purposes. Energies 2018, 11, 2183. https://doi.org/10.3390/en11092183
Voglitsis D, Valsamas F, Rigogiannis N, Papanikolaou N. On the Injection of Sub/Inter-Harmonic Current Components for Active Anti-Islanding Purposes. Energies. 2018; 11(9):2183. https://doi.org/10.3390/en11092183
Chicago/Turabian StyleVoglitsis, Dionisis, Fotis Valsamas, Nick Rigogiannis, and Nick Papanikolaou. 2018. "On the Injection of Sub/Inter-Harmonic Current Components for Active Anti-Islanding Purposes" Energies 11, no. 9: 2183. https://doi.org/10.3390/en11092183