Real-Time Hardware Simulator for Grid-Tied PMSG Wind Power System

Abstract

-This paper describes a real-time hardware simulator for a grid-tied Permanent Magnet Synchronous Generator (PMSG) wind power system, which consists of an anemometer, a data logger, a motor-generator set with vector drive, and a back-to-back power converter with a digital signal processor (DSP) controller. The anemometer measures real wind speed, and the data is sent to the data logger to calculate the turbine torque. The calculated torque is sent to the vector drive for the induction motor after it is scaled down to the rated simulator power. The motor generates the mechanical power for the PMSG, and the generated electrical power is connected to the grid through a back-to-back converter. The generator-side converter in a back-to-back converter operates in current control mode to track the maximum power point at the given wind speed. The grid-side converter operates to control the direct current link voltage and to correct the power factor. The developed simulator can be used to analyze various mechanical and electrical characteristics of a grid-tied PMSG wind power system. It can also be utilized to educate students or engineers on the operation of grid-tied PMSG wind power system.

Implementation of module-based wind power system with pitch angle control

“…However, the operation of generator side is not considered in these papers. The real-time wind speed is measured for WPSS in [5]. This method is not practical, because the wind speed for theoretical calculation is equivalent average value [6].…”

Design of DC Side Voltage and Compensation Analysis of THD for Shunt Power Quality Controller under System Load of Rectifier with R-L Load

“…(1) and (2). (3) and (4), where k=1 for the single-phase system, 1 2 k = for the Sinusoidal Pulse Width Modulation (SPWM) and 1 3 k = for the Space Vector Pulse Width Modulation (SVPWM) of the three-phase system [17][18][19]. The modulation index m=1.…”

“…In many applications, the DC side voltage is controlled as a constant [6][7][8]. In [9], for a given DC side voltage, the maximum fundamental out voltage was shown in a wind generating system, and, it was very useful that the paper presented the relationship between the DC side voltage and the maximum fundamental output voltage.…”

Analysis and Compensation of Current Measurement Errors in a Doubly Fed Induction Generator

“…The voltage equations and the stator flux of the synchronous reference frame are given in (1-3) and (4 …”

“…A double fed induction generator (DFIG) is a popular wind turbine system due to its high energy efficiency, reduced mechanical stress on the wind turbine, and relatively low power rating of the connected power electronics converter of low costs [1][2][3][4]. The vector control of the rotor current is used to control the active and reactive power independently and stably using a rotating reference frame fixed on the gap flux [5][6][7].…”