Single stage PV system based Direct Torque Controlled PMSM drive for pump load application

Dubey, Menka; Sharma, Shailendra; Saxena, Rakesh

doi:10.1109/pedes.2016.7914518

Cited by 13 publications

(2 citation statements)

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“…Therefore, studying system behavior under varying parameters, bifurcation, is of interest for many researchers as different system characteristics can be presented. For instance, the papers [9][10][11] investigated how parameter variation can affect stability, and they design controllers accordingly. Moreover, in complicated power conversion systems, they are usually connected to multi-input energy sources, and they can work in a different mode with different structures.…”

Section: Introductionmentioning

confidence: 99%

Optimal Tradeoff between MPP and Stability of a PV-Based Pumping System

et al. 2022

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This paper presents a novel algorithm to pick PV-based pumping system operating points that simultaneously achieve maximum delivered power and optimized stability. We present an in-depth analysis of operating point dynamics and shape the PV output current and voltage parameter plans. Accordingly, we draw the power bifurcation diagram with all possible operating points. Our proposed algorithm picks the power operating point midway between two consecutive stable points and far enough from the stability boundary to assure system safety. We validated our methodology successfully by numerical simulation based on speculative evidence using MATCON/MATLAB/SimPowerSystems blocks. In addition, we compared the proposed algorithm with P&O MPPT algorithm, and the results verified the reliability of our proposed algorithm to deliver maximum stable power.

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Section: Introductionmentioning

confidence: 99%

Optimal Tradeoff between MPP and Stability of a PV-Based Pumping System

et al. 2022

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“…PMSM is used in low to medium power applications. The features of the motor are simple structure, reliable operation, better energy efficiency and high power density [1][2][3][4][5]. In our market, PMSM drive systems come with a shaft sensor such as an optical encoder, hall effect sensor or resolver to measure the speed of the rotor, torque current and flux current.…”

Section: Introductionmentioning

confidence: 99%

Speed Sensorless Control for PMSM Drives Using Extended Kalman Filter

et al. 2021

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In this paper, Sensorless Permanent Magnet Synchronous Motor (PMSM) using Extended Kalman Filter (EKF) is presented. The previous PMSM drive uses a sensor to measure the motor’s speed. Then the idea is to replace the sensor by using sensorless drives based on the observer. For the conventional observer, it’s only good for low current and low-speed applications. Moreover, it is hard to detect the phase voltage due to the non-existence of neutral wire. Therefore, this project proposes sensorless control using an EKF. This method provides an optional estimation algorithm for the non-linear system that can produce a fast and accurate estimation of state variables. The accurate estimation will reduce the noise and ripple of the system. Additionally, the EKF do not require the information of mechanical parameters and the initial position of the rotor, making the construction is easy and simple. In this paper, the fundamental of the EKF algorithm is explained and the simulation results for different speeds and loads are presented. The noise reduction test is also conducted to measure the flux current with and without the filter. The simulation study is achieved using MATLAB/Simulink to verify the effectiveness of the proposed method. The results of the simulation show that the sensorless PMSM drives using EKF have lower overshoot and faster rise time during start-up conditions and have lower undershoot during the loaded condition. It also can be concluded that the proposed sensorless PMSM drive using EKF has good speed control accuracy and can reduce the current noise.

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