• G MOUNIKA
• S ABBAS ALI

In this paper presents active islanding recognition techniques are for the most part utilized for grid connected inverter-based Distributed Generation (DG). however, there may be common impacts and power quality issues caused by the disturbance signal when numerous inverters are included. To address those issues, this paper examines the potential failure component of the f-Q (frequency reactive power) drifting dynamic technique in various DG circumstances. In this paper proposed an islanding detection method based on high frequency impedance estimation utilizing external centralized transient injections. a high frequency transient injection based islanding discovery strategy that is reasonable for both single and numerous DGs is proposed. Contrasted and the customary injection strategies, a high frequency impedance display for DG and by using fuzzy logic controller performance was improved under disturbance conditions. By methods for the irregular Time Domain Low Voltage Condition (TDLVC) injection control, this technique can accomplish great precision and diminish unsettling influences to control system.

: islanding detection, active injectin method, high frequency impedance estimation,distributed generation

"High Frequency Impedance Estimation Of Islanding Detection Method For Multi DG Systems By Using Fuzzy Logic Controller", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.4, Issue 9, page no.227-233, September-2017, Available :http://www.jetir.org/papers/JETIR1709040.pdf

"High Frequency Impedance Estimation Of Islanding Detection Method For Multi DG Systems By Using Fuzzy Logic Controller", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.4, Issue 9, page no. pp227-233, September-2017, Available at : http://www.jetir.org/papers/JETIR1709040.pdf