Real-time monitoring of an electronic wind turbine emulator based on the dynamic PMSG model using a graphical interface

Abstract

This paper proposes an electronic wind turbine emulator (EWTEm) platform involving the dynamic models of the wind turbine (WT), permanent magnet synchronous generator (PMSG), and turbine-generator mechanical coupling, such that a real WT can be emulated for distinct kinds of loads and wind profiles. Low implementation cost represents an advantage for the proposed EWTEm, followed by its versatility on the commercial WT emulation with different characteristics, enabling the development of both theoretical and practical laboratory researches. Besides the 3-Phase 3-Leg inverter, the system is composed of a controlled rectifier with a high power factor and a graphical interface. Thus, it is possible to perform the following tasks: 1) vary the wind speed or wind profile; 2) visualize and assess the dynamic and static performances of the EWTEm by measuring the inverter quantities, such as voltages, currents, electric power, and frequency of the PMSG; and 3) visualize the quantities that are calculated into the digital signal controller, such as WT mechanical power, electromagnetic torque and rotation speed at the PMSG shaft. Simulation results are presented, as well as experimental tests are carried out and visualized by a graphical interface considering the system subjected to several transients of load and wind speed.