Reactive Power Capability of Full converter Wind Generation systems (FCWGs) Case Solution
Variable Speed Wind Turbine
Elasticity in the controlling response of the turbine of variable-speed wind transform through power electronics converter are progressively involving in power systems. In past few years, the wind turbine generators are the center of focus for the researchers to make improvement in grid integration and to control the converters. In the context of deregulation of the electricity sector, the study of roles of wind turbine generators is also been done in the markets.
Moreover providing the active power to the grid, after making minor alterations in the design or in control architecture in wind generators with power electronics will also become capable of providing the reactive power to the system. These Wind turbines are also capable of providing temporary primary frequency regulation and oscillation damping.
In the large thermal generators, reactive power as a secondary service is mainly studied in this lecture. Wind farms (WFs) hardly provides the reactive power with the independent system operators (ISOs). In future, WFs will be a useful reactive power service provider because of the boost involvement of wind generators in the power grid and the utilization of power electronics turbines. Now the WFs can be considered as a dispatchable power source by the system operators, because of improvement in wind forecasting systems in past years, collected with the power smoothing effect within a WF, The WFs can also be treated as dispatchable by operation due to reactive power support from the voltage source converters (VSCs).
Figure 6 “VSWT with a full-scale back-to-back power electronic converter comprising a MSC and GSC”
In order to take the wind variations in the description, the capability curves of these units should be delimited. The inspection needs as well of various cost components that are allied with the reactive power generation by these units. To support the ISO for the framing of suitable economic compensation mechanisms for obtaining the reactive power services the knowledge of these cost component will be supportive. The ISOs will be capable of utilizing WFs with the reactive power capability as a reactive power additional service provider after the solution of the above problems.
Goals of the study
Cost representation of reactive power generation from WFs in detail and the proposal of comprehensive technical models are the leading points of this paper. The advancement of the capability curve of a VSWT-based WF with the full scale power electronic convertor are the focus area of research, due to its reactive power generation thinking about the right now existing framework codes and the wind variability factor. The new method are propose for defining the lost opportunity cost (LOC) of WFs that describe the wind fluctuations..........
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