A New Control Strategy of Dual Stator Induction Generator with Power Regulation

Abstract

In this paper modelling and analysis of stand-alone dual stator induction generator (DSIG) with non-identical parameters under a new method has been done. The induction machine has two sets of stator three-phase windings spatially shifted by 30 electrical degrees. One supplied power to the DC load via a rectifier bridge and AC capacitors, and the other was connected to the battery banks by an inverter to store energy and restore it to regulate the power of the first stator in weak wind. We develop the steady state model and show the performances of different configurations by the simulation results.

Nonlinear Optimal Control for Six-Phase Induction Generator-Based Renewable Energy Systems

“…( 6) and Eq. ( 7) and using that Vdr = 0, Vqr = 0 and 𝑑 𝑑𝑡 𝜓 𝑟 = 0 one obtains [5][6][7][8][9] 𝜓 𝑟 (22) Moreover, the relation between the electromagnetic torque of the DSIG becomes.…”

“…Thus one has for the stator expression of the current and voltage variables in reference frames dqs1 and in reference frame dqs2. Equivalently, the voltage and current variables of the rotor are expressed initially in an ABC three-phase reference frame which after applying Clark's and Park's transformations is turned into the asynchronously rotating reference frame dqr Therefore, one has the following sets of equations [5][6][7][8][9]: (7) Moreover, the magnetic flux variables are connected with the stator and rotor current variables through the following equations [5][6][7][8][9].…”

“…Next, the field orientation assumption is made about the magnetic flux of the motor (the rotor's dq frame turns at an asynchronous speed which allows to set equal to zero the q-axis component of the rotor's magnetic flux). This signifies ψdr = ψr and ψqr = 0 [5][6][7][8][9].…”

“…Multi-phase generators exhibit specific advantages when compared to three-phase synchronous or asynchronous generators as parts of renewable energy systems (for instance wind power generation units or marine/tidal power generation units) [1][2][3][4]. In particular 6-phase dual star induction generators (DSIGs) consist of dual 3-phase windings in their stator, and can achieve better power rates [5][6][7][8][9]. Besides, they exhibit fault tolerance and remain functional when one or more of their phases undergo a failure [10][11][12].…”

Sliding Mode Control of an Electric Vehicle Driven by a New Powertrain Technology Based on a Dual-Star Induction Machine

“…This machine comprises a stator equipped with two identical three-phase windings and a squirrel-cage rotor. It is a dual-star induction machine known for its reliability, robustness, high efficiency, and excellent performance compared to single-star machines [12][13][14]. This innovative approach opens up new perspectives in the field of electric vehicle propulsion, offering a promising alternative to meet the increasing demands for performance and energy efficiency.…”