scholarly journals A lyapunov‐based adaptive voltage controller for a grid connected PV system

2021 ◽  
Author(s):  
Malay Bhunia ◽  
Bidyadhar Subudhi ◽  
Pravat Kumar Ray
Keyword(s):  
Pv System ◽  
Voltage Controller

scholarly journals Adaptive Voltage Control of Distribution Network with High Proportion PV

2021 ◽  
Vol 252 ◽  
pp. 01033
Author(s):  
Junchao Ma ◽  
Xiaoming Huang ◽  
Boliang Lou ◽  
Xiulin Xiao ◽  
Yinlong Fan ◽  
...  
Keyword(s):  
Control Strategy ◽  
Reactive Power ◽  
Distribution Network ◽  
Voltage Control ◽  
Voltage Regulation ◽  
Extremum Seeking ◽  
Pv System ◽  
Voltage Control Strategy ◽  
Voltage Controller ◽  
Point Of Common Coupling

With the increase of grid-connected PV capacity, voltage regulation at point of common coupling by controlling the reactive power injected into the grid is available. This paper presents an adaptive voltage control strategy for distribution network with high proportion PV system. The PI gain of the voltage controller is automatically adjusted by the extremum seeking algorithm to dynamically respond to the changes of the network. The PI gains are updated online through the minimization of a cost function, which represents the voltage controller performance. Finally, a distribution network model of 5 MW photovoltaic power generation system is built in MATLAB / Simulink to verify the effectiveness of the proposed control strategy.

scholarly journals A study of voltage regulation in microgrid using a DSTATCOM

2020 ◽  
Vol 9 (5) ◽  
pp. 1766-1773
Author(s):  
Ziyaad H. Saleh ◽  
Zaid H. Ali ◽  
Raid W. Daoud ◽  
Ahmed H. Ahmed
Keyword(s):  
Power Quality ◽  
Voltage Regulation ◽  
Pv System ◽  
Static Synchronous Compensator ◽  
Simulink Model ◽  
Voltage Controller ◽  
Weather Events ◽  
Power Oscillations ◽  
The Difference ◽  
Basic Content

A well-prepared abstract enables the reader to identify the basic content. This paper presents the solution of voltage fluctuations in urgent situations by providing voltage and reactive support from a distribution static synchronous compensator (DSTATCOM) in the grid. Also, it analyses the influences of DSTATCOM as a voltage controller and compares the system performance with and without DSTATCOM. The DSTATCOM is used in the study to maintain voltage in the microgrid (MG) to be around the rated value after Microgrid disturbance. A successful simulink model of the photovoltaic (PV) system and the proposed DSTATCOM are illustrated to work together as the Microgrid. Microgrids could provide unique resilience and reliability when the environment encountered with less water, higher temperatures, more frequent and harsh wildfires, and severe weather events. The proposed DSTATCOM was installed in different locations in the MG and the best location was chosen to achieve the goal of improved power quality and efficiency. In this paper, two scenarios are discussed with and without DSTATCOM. The simulation results show the difference between the MG with and without DSTATCOM and how the DSTATCOM can amplify power quality in the Microgrid. The proposed DSTATCOM has the capability to improve dampen power oscillations during transit events.

scholarly journals PSO based Direct Power Control for a Multifunctional Grid Connected Photovoltaic System

2018 ◽  
Vol 9 (2) ◽  
pp. 610 ◽  
Author(s):  
Bengourina Mohamed Rida ◽  
M. Rahli ◽  
S. Slami ◽  
L. Hassaine
Keyword(s):  
Power Control ◽  
Reactive Power ◽  
Pso Algorithm ◽  
Photovoltaic System ◽  
Direct Power ◽  
Pv System ◽  
Direct Power Control ◽  
Shunt Active Power Filter ◽  
Harmonic Elimination ◽  
Voltage Controller

<p>This paper presents a grid-connected photovoltaic system (PV) used as a shunt active power filter (SAPF) to provide the power factor correction, harmonic elimination, reactive power compensation and to simultaneously supply power from a PV system to the utility. A direct power control (DPC) method is used for controlling the system to feed the photovoltaic energy in synchronization with grid and provide power quality improvement. The PI parameters of DC-link voltage controller are tuned using the Particle Swarm Optimization (PSO) algorithm without the need for an exact mathematical model of system. This PI-PSO controller gives better results for robustness, harmonic minimization and reduces the overshoot and undershoots of PI controller. The overall control of system is tested in Matlab/Simulink environment. Then, the simulations results demonstrate the robustness and feasibility of proposed method.</p>

scholarly journals Voltage Controller for 3 Level NPC-MLI Based HSVM With Grid Connected PV System

2016 ◽  
Vol 9 (35) ◽  
Author(s):  
R. Palanisamy ◽  
K. Vijayakumar ◽  
S. Abhinav ◽  
R. Prasanna ◽  
T. Yogesh
Keyword(s):  
Pv System ◽  
Voltage Controller
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