Dynamical Analysis of DC Shunt Motor Powered by PV Generator Using Perturbation and Observation as MPPT Technique

Widyan

Tha'

et al. 2018

IJESMS

This paper presents a stand-alone Wind/PV hybrid power system supplying a threephase induction motor for pumping applications. The nonlinear dynamical mathematical model for the system components is presented and used for numerical simulations. The system comprises a fixed speed wind turbine driving a self-excited induction generator (SEIG) terminated by capacitor bank, and a photovoltaic (PV) array integrated via DC-DC converter, inverter and LC filter. The two sources feed (IM) driving a centrifugal pump. The duty ratio of the converter is controlled to maintain constant voltage at common coupling point. System performance is tested by changing the load torque coupled to the motor at certain solar irradiance levels and with fixing load torque with successive step changes of the solar irradiance levels. It is concluded that the system has the ability to run at wide range of solar intensity levels and motor loading conditions. Numerical simulations are executed using MATLAB software.

Section: Pv Design and Output Characteristicsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modelling, simulations and operational performance of a stand-alone hybrid wind/PV energy system supplying induction motor for pumping applications

Widyan

Tha'

et al. 2018

IJESMS

“…Hence, the cell efficiency is reduced [21]. A pattern of trends is also seen in [22][23][24][25][26][27].…”

Section: Introductionmentioning

confidence: 99%

“…Though, improving the performance of SPVS can reduce the COE, the operation is prone to high operating temperatures [8]. Different attempts are made to enhance the efficiency of the SPVS through various cooling technologies [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. There are two distinguishable kinds of cooling techniques [10] reported to the date: (1) Active cooling that required electrical energy supply [9,10], and (2) passive cooling that uses natural convection and conduction to remove excess heat [14].…”

Section: Introductionmentioning

confidence: 99%

Thermal management of grid‐tied PV system: A novel active and passive cooling design‐based approach

Hammad

Sweidan²,

IET Renewable Power Gen

et al. 2021

The photovoltaic (PV) cells are highly sensitive to temperature variations. The linear variation of PV cells with operating temperature could lead to the loss of conversion efficiency and permanent damage of PV material. To address this critical issue, while improving the performance of solar photovoltaic system (SPVS) during the operating period, the deployment of a proper cooling system is a prime requisite in the design process. Considering this, two new and cost-effective cooling techniques are proposed in this study, which can improve efficiency and increase the life of the PV panel. The first technique is the active cooling design with water. The proposed design enhances the access to PV cells to maximize cooling. The second one is an improved passive cooling technique that uses fins mounted on the backside of PV module. This further reduces the temperature by increasing the heat dissipation. Additionally, a third PV module without any cooling system is deployed as a reference margin. The techniques have been experimentally evaluated and a recommendation is made in order to reduce the temperature variation across the PV panel.This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

“…The simulated stability investigations for standalone photovoltaic energy systems are presented [3]- [7]. The simulations are taken for different types of DC motors.…”

Section: Introductionmentioning

confidence: 99%

Operational performance of a PV generator feeding DC shunt and induction motors with MPPT

Sweidan

Widyan

et al. 2019

IJECE

<p>This paper presented the transient and operational behavior of a parallel Combination of DC Shunt Motor and IM fed by a photovoltaic generator at different solar irradiance levels. The maximum power point of current/voltage (I/V) characteristic of the PV generator was achieved for different solar intensities, by utilizing an open circuit voltage method. The nonlinear operational behavior of (I/V) characteristics of the PV generator at various solar intensities and the magnetization curve of the ferromagnetic material of the DC shunt motor were both modeled by high order polynomial mathematical expressions. The study investigated the response of the system at different solar irradiance levels and changing the torque loads for both motors and then following step change in solar intensity levels with fixed loading torques for both motors. All numerical simulations were executed using MATLAB software.</p>