An improved SMC control strategies for PMSG based WECS

Purushotham, G.; Girish, N.; Kiran, Shaik Rafi

doi:10.22161/ijaers/nctet.2017.eee.12

Cited by 1 publication

(1 citation statement)

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“…Increasing the power transfer capability and regulating active and reactive powers of the PMSG are the targets of researchers (Delfino et al, 2012). To achieve these targets, many control methods are developed such as zero d-axis current (ZDC), maximum torque per ampere (MTPA) control, and unity power factor (UPF) control (Purushotham et al, 2017). These control methods are voltage source (VS)-based equivalent circuit parameter.…”

Section: Introductionmentioning

confidence: 99%

Assessment of proposed maximum power point tracking–unity power factor algorithms for optimum operation permanent magnet synchronous generator–based wind turbine

2020

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It is very important to select proper maximum power point tracking algorithm in order to achieve best performance and low cost for wind turbine–generator combination. A permanent magnet synchronous generator steady-state unity power factor analytical model based on a current source—equivalent circuit is provided. Validation of the identified load angle effect in current source as compared with that of the commonly used voltage source permanent magnet synchronous generator is presented. Then three new maximum power point tracking–load angle control algorithms based on current source model are presented. They all apply magnitude and frequency control techniques for Digital Signal Processor control systems. The first one presents maximum power point tracking–unity power factor applying constrained load angle control algorithm. The merits of the next two developed schemes are quickly and precisely tracking the maximum power output of the wind turbine; thus, the second and third algorithms are then characterized with linear control systems. The linearity of the second scenario is between load angle and reference speed while the third one has a load angle–torque linear relationship which shows its optimality. Finally, the controlled characteristics and implementation for the optimum case are presented for both stationary and synchronous reference frames (for vector control purposes). Simulation modeling for optimum case is provided and its results match well with the proposed predictive control algorithm.

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Section: Introductionmentioning

confidence: 99%