Islanding Detection Technique based on Karl Pearson’s Coefficient of Correlation for Distribution Network with High Penetration of Distributed Generations
-
Karan Sareen
,
Bhavesh R Bhalja
Abstract
This article proposes a new Karl Pearson’s coefficient of correlation (‘r’) based islanding detection scheme which utilizes negative sequence voltage and voltage unbalance signal. In order to check the legitimacy of the proposed technique, large numbers of non-islanding and islanding events are generated by modeling IEEE 34-bus network. This scheme detects islanding situation even under 0 % power mis-match condition and thus, reduces the non detection zone (NDZ). Furthermore, the proposed technique detects islanding situation quickly as well as remains stable during the critical non-islanding situation like faults on adjoining feeder having varying location and fault resistance. Moreover, the proposed technique remains immune to variation in external system condition and fundamental frequency. The performance of the proposed technique is comprehensively compared with the schemes currently reported in the literature. This comparison apparently demonstrates the benefits of the proposed technique over existing schemes.
Appendix
| 1. Synchronous Generators Parameters | |
| Rated RMS Line-to-Neutral voltage(Vrms) | : 0.133 [kV] |
| Rated RMS Line current (Irms) | : 2.510 [kA] |
| Base Angular Frequency (ω) | : 314.15[rad] |
| Inertia Constant (H) | : 3.117[s] |
| Mechanical Friction and windage (Dm) | : 0.04 [pu] |
| Neutral Series Resistance (Rs) | : 1.0E5[pu] |
| Neutral Series Reactance (Xs) | : 0 [pu] |
| Iron Loss Resistance (Rm) | : 0.5 [pu] |
| Exciter Parameters | |
| Rectifier smoothing time constant (T1) | : 0.02 [s] |
| Controller lead time constant (TA) | : 0.12 [s] |
| Controller lag time constant (TB) | : 0.07 [s] |
| Exciter time constant (TE) | : 0.02 [s] |
| Exciter gain (K) | : 100[pu] |
| Maximum field voltage (EMAX) | : 5 [pu] |
| Minimum field voltage (EMIN) | : -5[pu] |
| L-G Voltage base (KV,RMS) | : 0.133 [kV] |
| Line current base (KA, RMS) | : 2.510 [kA] |
| 2. Solar Panel Parameters | |
| Rated Line-to-Neutral voltage (Vrms) at the output terminal of inverter | :0.133 [kV] |
| Rated RMS Line current (Irms) at the output terminal of inverter | :1.250 [kA] |
| Solar Radiation | :622.222[Watt/ m2] |
| Temperature | : 50 [0C] |
| DC bus voltage at the input terminal of three-phase inverter | : 0.500 [kV] |
| DC voltage at input terminal of step down chopper (or at the output terminal of PV array) | : 1.100 [kV] |
| DC current at input terminal of step down chopper (or at the output terminal of PV array) | : 0.13 [kA] |
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Artikel in diesem Heft
- Optimal Phasor Measurement Unit Placement for Numerical Observability Using A Two-Phase Branch-and-Bound Algorithm
- Reinforcement of Topologically Weak Power Networks Through Network Structural Characteristics Theory
- Multi-Terminal High Voltage Direct Current Transmission System with DC Resonant Semiconductor Breakers
- Islanding Detection Technique based on Karl Pearson’s Coefficient of Correlation for Distribution Network with High Penetration of Distributed Generations
- Real Time Harmonic Mitigation Using Fuzzy Based Highly Reliable Three Dual-Buck Full-Bridge APF for Dynamic Unbalanced Load
- An Autonomous Residential Smart Distribution Board: A Panacea for Demand Side Energy Management for Non-Smart Grid Networks
- Droop based Demand Dispatch for Residential Loads in Smart Grid Application
- Asynchronous Method for Frequency Regulation by Dispersed Plug-in Electric Vehicles
- A New Hybrid Protection Algorithm for Protection of Power Transformer Based on Discrete Wavelet Transform and ANFIS Inference Systems
- Experimental Identification using Equivalent Circuit Model for Lithium-Ion Battery
- Fault Identification and Location for Distribution Network with Distributed Generations
- Investigation of the Influence of Direct Current Bias on Transformer Vibration
