- مبلغ: ۸۶,۰۰۰ تومان
- مبلغ: ۹۱,۰۰۰ تومان
In wind energy conversion systems (WECS), the turbine captures part of the wind energy and converses it to mechanical energy through a dynamic interaction with the electrical generator which in turn converts this mechanical energy to electrical energy. Therefore, the dynamics of the wind turbine is very important in research and development of the overall WECS. Having a real wind turbine or a site with convenient wind conditions is not always a guaranteed option for conducting research. Hence, it is very desirable to create wind turbine dynamics through wind turbine emulation. In this paper, a wind turbine emulation system using a permanent magnet synchronous motor (PMSM) is designed, simulated, implemented, and tested experimentally. The PMSM is torque-controlled using field orientation technique. A three-phase IGBT inverter with closed loop current PI-controllers is used to drive the PMSM. A dSPACE DS1104 DSP prototyping platform is used to handle the real-time execution of the control programs. The system is tested and the torque-speed characteristics of the emulated wind turbine are verified experimentally at different feeds of wind speeds and generator loads.
A wind turbine emulator has been implemented to reproduce the characteristics of a real wind turbine in the laboratory. A good emulator can afford great flexibility and reduce costs of conducting research on WECS. A PMSM-based wind turbine emulator has been implemented to create a controlled test environment for a practical wind turbine drive train. A lot of tests have been conducted on the proposed system to check the system robustness, immunity, and dynamic performance. The system tracks the torque command issued from a wind turbine block under a sudden change in the applied load to the motor, sudden change in wind speed, and under stochastic wind speed variation. The system precision in emulating the torque-speed characteristics of the target turbine is also verified. This experimental work concludes that the PMSM is the best option to emulate the wind turbine characteristics to be used in the research and development of the wind energy conversion systems.