Modelling and Performance Analysis of Grid Connected PMSG Based Tidal Generation System

AIUE Proceedings of the 2nd Energy and Human Habitat Conference 2021

7 Pages Posted: 8 Sep 2021

See all articles by Ladislas Kangaji

Ladislas Kangaji

Cape Peninsula University of Technology

Khaled M. Abo-Al-Ez

Cape Peninsula University of Technology

E.F. Orumwense

Cape Peninsula University of Technology

Date Written: July 26, 2021

Abstract

Globally, most national grid relies on fossil fuel with consequent economic burdens, environmental pollution and global warming. Hence, Tidal energy possesses the capacity to mitigate the emission of carbon dioxide because it is clean, abundant, less expensive and predictable. However, the power output from Tidal energy generation system (TEGS) fluctuates due to changes in tidal flow whereby causing power instability. This work is geared at fundamentally model, simulate and control TEGS since it encounters problems such as harmonics, frequency fluctuations and voltage sags. These problems are resolved using a nonlinear controller coupled with a high-speed simulation of circuit-oriented electrical and digital electronic systems. The generator power output is optimised by utilising various control methods as proposed to control the voltage and frequency which is a Voltage Oriented Control technique that relies on high level performance 𝑑𝑞‐coordinate controllers. The system simulation is implemented in the MATLAB/Simulink environment. The current controller and DC‐link voltage controller are designed using Internal Model Control method. The simulation results show the system performance in response to the load and dc‐bus voltage step changes while directly running a Simulink model as a controller. The performance and validity of the preferable control method is verified by the simulation results and corresponds to available literature. The simulated results show that the controller can stabilise the constant dc-link voltage under dynamic and steady-state performance of the system.

Keywords: Tidal energy; LCL filter; multilevel inverter; voltage-oriented control

Suggested Citation

Kangaji, Ladislas and Abo-Al-Ez, Khaled M. and Orumwense, E.F., Modelling and Performance Analysis of Grid Connected PMSG Based Tidal Generation System (July 26, 2021). AIUE Proceedings of the 2nd Energy and Human Habitat Conference 2021, Available at SSRN: https://ssrn.com/abstract=3901370 or http://dx.doi.org/10.2139/ssrn.3901370

Ladislas Kangaji (Contact Author)

Cape Peninsula University of Technology ( email )

Cape Town, 8000
South Africa

Khaled M. Abo-Al-Ez

Cape Peninsula University of Technology

Cape Town, 8000
South Africa

E.F. Orumwense

Cape Peninsula University of Technology

Cape Town, 8000
South Africa

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