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For understanding the dynamic behavior and assessing the stability of induction generator based wind generation system, the system should be modeled accurately. Power system transient stability is usually assessed in terms of critical clearing time (CCT) of fault. CCT determines the time for which the wind generating systems can be connected to the grid, when the grid is subjected to a fault. In the...
Ideal Static Compensator (STATCOM) modeling may be deceiving for determining the protection device settings that will operate to fulfill Low Voltage Ride Through (LVRT) requirements of wind turbines. If these settings are not accurately calculated, premature tripping or machines instability may occur and hence LVRT will not be achieved in such cases. Therefore, a more realistic STATCOM model is introduced...
The complete-order modelling of state-space representations of synchronous and induction generators for wind turbine applications is presented. Fully equivalent models with different state variables, suitable for different control schemes, are given. The state-space representations provide a convenient, compact and elegant way to assess the induction and synchronous generator-based wind turbines,...
This paper assesses transient stability of grid-connected wind turbines, combining grid-connection, wind turbine flexibility, and induction generator stability features. Through a grid-connected 2 MW wind turbine cage-generator, the investigation is conducted to identify the critical clearing time (CCT) and critical speed (CS), using in detail modelling. These steady-state concepts for transient stability,...
Many developing countries like India have installed large number of constant speed wind turbine generators (WTGs) as they are robust and economical. Most of the countries have their own grid codes (rules and regulations) to integrate WTGs into the utility grid. One of the primary grid code for WTGs is low voltage ride through (LVRT) capability. The regulations of grid integration are likely to make...
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