Comprehensive Protection Schemes for Different Types of Wind Generators

Identification and nature detection of series and shunt faults in types I, III and IV wind turbines and PV integrated hybrid microgrid with a fuzzy logic‐based adaptive protection scheme

“…Wind generators (single (type I) and double fed (types III and IV)) are modelled in this paper that has a variable pitch wind turbine model [1]. This wind turbine model is based on the performance coefficient ( C p ) of the turbine, which is the ratio of the mechanical output power of the turbine and the wind power.…”

“…It has been observed that high short‐circuit capacity, a combination of resistive and inductive load and high reactance of type I wind generator and grid also play an important role in fault current increment. Also, for types III and IV, more change is in type III as compared to type IV with more transients [1] because of full converter operation in type IV. Again, as shown in Figs.…”

“…This algorithm differentiates the type of generation according to the respective change in the transient component of fault current shared by respective converters connected with PV and wind generators. The behaviour of different faults on different induction generators (DFIG‐III and IV) used in wind generators is given the main emphasis [1]. Existing kinds of literature show that no study is reported yet for change in transient reactance during different faults in a hybrid microgrid.…”

“…Types I (with a simpler design and maximum current sharing capacity), III and IV are only considered in this work since in type II, considerable flicker is present. There are a lot of changes to study fault current behaviour of types I–IV wind generators [1]. So, for reliable and efficient protection scheme design, use of types I, III and IV wind DGs are studied in this paper.…”

“…Based on three‐phase voltage and current characteristics, reliable protection schemes with different relay settings are proposed [1]. A technique using differential current is proposed for accurate fault detection and its distance calculation, only for PV (DC) microgrid [2, 3].…”