![]() ![]() WIND TURBINE BLADE TEMPLATE GENERATORThe lumped generator model tracks the grid voltage and phase angle at the point of common coupling (PCC) using the phase locked loops (PLL). The lumped generator system integrates with the wind turbine system to simulate different aspects of the control algorithm. Therefore, a low fidelity lumped DFIG generator system is practical for improving simulation speed and providing flexibility. The closed-loop DFIG system is faster than wind turbine control systems such as pitch control. To simulate wind turbine control, you must run the simulation longer. The wind turbine has a larger time constant and slower response than a traditional doubly-fed induction generator (DFIG) system. The aerodynamic braking is the primary method for braking the wind turbine. During this mode, the generator is connected to the transformer to consume the kinetic energy available in the rotor blade, the hydraulic park brake is released, and the wind turbine rotor blades are pitched to the braking angle for the aerodynamic braking. The wind turbine enters the pitch brake mode from the startup mode when the wind speed is not under the permissible limits. ![]() Pitch brake mode: The wind turbine enters pitch brake mode from generating mode when the wind speed and turbine rotation speed are not under the permissible limits. During this mode, the generator is connected to the transformer, the hydraulic park brake is released, and the wind turbine rotor blades are pitched to achieve the optimal electric power generation as per the operating conditions. Generating mode: The wind turbine enters the generating mode from the startup mode when the wind turbine rotor speed goes above the turbine cut in speed. During this mode, the generator is in the tripped state, the hydraulic park brake is released, and the wind turbine rotor blades are pitched to the minimum angle for achieving the maximum turbine rotor acceleration. The wind turbine enters this mode from the pitch brake mode when the wind speed and the turbine speed are under the permissible limits. Startup mode: The wind turbine enters the startup mode from the park brake mode when the wind speed is under the permissible limits for safe operation. The hydraulic brake is the secondary method for braking the wind turbine. During this mode, the generator is in the tripped state, the hydraulic park brake is engaged, and the wind turbine rotor blades are pitched to the braking angle for the aerodynamic braking. The wind turbine enters the park brake mode from the pitch brake mode when the turbine rotor speed is under the permissible limits for safe operation. Park brake mode: This is the entry mode of the wind turbine operation. The turbine state machine defines four wind turbine states. WIND TURBINE BLADE TEMPLATE HOW TOThis subsystem demonstrates how to model the wind turbine state machine. ![]()
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