Study on a Correlation-Based Anti-Islanding Method under Wider Frequency Trip Settings for Distributed Generation
Abstract
:Featured Application
Abstract
1. Introduction
2. NDZ Comparisons
3. The Proposed AIM
4. Simulation Results
5. Conclusions
Funding
Conflicts of Interest
References
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Standard | Over Frequency [Hz] | Under Frequency [Hz] | Clearing Time | Condition | Non Detection Zone |
---|---|---|---|---|---|
IEEE Std. 929–2000 | 60.5 | 59.3 | 6 [cycles] | ≤ 10 [kW], Qf = 2.5 | |
IEEE Std. 1547–2003 | 60.5 | 59.3 | 0.16 [s] | ≤ 30 [kW], Qf = 1 | |
IEEE Std. 1547–2018 | 62.0 | 56.5 | 0.16 [s] | Default setting, Qf = 1 |
Parameter | Value | |
---|---|---|
Local load R, L, C power | Quality factor Qf = 1 | PR = 3 kW QL = 3 kVar QC = 3 kVar |
Single DG inverter nominal power, Pinv | 3 kW | |
Threshold value of correlation parameter, CP,set | 0.0008 (when N = 5, Kp = 0.02) | |
Frequency trip setting | OF: 62 Hz, UF: 56.5 Hz | |
OF: 62 Hz, UF: 56.5 Hz | 56.5 < f < 62 Hz | |
Nominal grid voltage, frequency, Vgrid | 220 V, 60 Hz single phase |
AIM | AFD Method (Fixed cf) | AFDPF Method (Varying cf) | The Proposed Method (Varying cf) | |||||
---|---|---|---|---|---|---|---|---|
Parameter | ||||||||
cf [%] | 1 | 2 | 3 | 4 | 5 | |||
Kp | - (No need) | 0.02 | 0.02 | |||||
Anti-islanding detection time [s] at ΔP and ΔQ 0 | No detection | No detection | 0.116 | |||||
THDi [%] before islanding | 3.18 | 3.19 | 3.53 | 4.10 | 5.53 | 3.18 | 3.18 |
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Yu, B. Study on a Correlation-Based Anti-Islanding Method under Wider Frequency Trip Settings for Distributed Generation. Appl. Sci. 2020, 10, 3626. https://doi.org/10.3390/app10103626
Yu B. Study on a Correlation-Based Anti-Islanding Method under Wider Frequency Trip Settings for Distributed Generation. Applied Sciences. 2020; 10(10):3626. https://doi.org/10.3390/app10103626
Chicago/Turabian StyleYu, Byunggyu. 2020. "Study on a Correlation-Based Anti-Islanding Method under Wider Frequency Trip Settings for Distributed Generation" Applied Sciences 10, no. 10: 3626. https://doi.org/10.3390/app10103626