Wind Turbine High Voltage Ride Through Simulation Model

The patent creates a virtual copy of the physical testing system through a simulation evaluation model. The model includes aerodynamic model, torque control model, converter model, and high voltage fault generating device model that replicate the behavior of the actual wind turbine system under high voltage fault conditions. This virtual copy enables accurate evaluation without requiring complex physical testing equipment.

The patent replaces the mechanical/physical testing system with a computational simulation system. Instead of using physical high voltage fault generating devices and measurement equipment, the invention uses computer-based mathematical models to simulate the fault conditions and evaluate the ride through capability, substituting physical mechanisms with computational algorithms.

The patent performs preliminary simulation evaluations during the design and development phase, before actual deployment or physical testing is needed. The simulation model allows engineers to evaluate high voltage ride through capability under various fault conditions (1.1PU, 1.15PU, 1.2PU, 1.25PU, 1.3PU) in advance, identifying potential issues before they manifest in physical testing or operation.

By creating a virtual replica of the wind turbine system through detailed mathematical models (aerodynamic, torque control, converter models), the patent enables repeated evaluations without time loss. The simulation can be executed multiple times with different parameters and fault scenarios instantly, providing reliable evaluation data without the time constraints of physical testing.

The patent divides the complex simulation evaluation system into distinct modular components: aerodynamic model, torque control model, converter model, and high voltage fault generating device model. Each module handles a specific aspect of the system behavior, making the overall complex task manageable through segmented development. This modular approach reduces the precision burden on any single component while maintaining overall evaluation accuracy.

The simulation model incorporates multiple operating parameters and fault conditions (voltage levels from 1.1PU to 1.3PU, different fault durations, various operational states). By systematically varying these parameters in the simulation, the model achieves comprehensive evaluation without requiring extreme precision in any single measurement, as the statistical and trend analysis across multiple parameter sets provides robust results.