scholarly journals Design and simulation of Dynamic Voltage Restorer (DVR) supported by solar panels

2021 ◽  
pp. 31-36
Author(s):  
Omar Antonio-Lara ◽  
Pedro Martín García-Vite ◽  
Rafael Castillo-Gutiérrez ◽  
Hermenegildo Cisneros-Villegas
Keyword(s):  
Distribution System ◽  
Control Algorithm ◽  
Controller Design ◽  
Voltage Sags ◽  
Solar Panels ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Voltage Compensation ◽  
Dynamic Voltage ◽  
Mathematical Techniques

This work presents the design and simulation of a Dynamic Voltage Restorer (DVR) to mitigate power quality problems such as voltage sags and swells at sensitive loads to these types of disturbances, but with a compensation topology using one the most popular of the renewable energies, currently employed, which is photovoltaic solar energy. The DVR must operate with a control loop, monitoring the voltage at the load side and generating the voltage for compensation during the disturbances. The energy is obtained, from an array of solar panels for the injection of active power. The control algorithm discussed in this article is based on the Clark and Park transformations to generate the required signals for voltage compensation, these mathematical techniques allow fixing the variables and hence simplicity for the controller design. The results of the simulation in MATLAB/Simulink are used to show the performance of the proposed topology with symmetrical voltage sags in the distribution system.

scholarly journals Optimal Fuzzy Sliding Mode Controller Design using Bee Algorithm for Dynamic Voltage Restorer System

2019 ◽  
Vol 17 (1) ◽  
pp. 69-77
Author(s):  
Somporn Tiacharoen ◽  
Theerayuth Chatchanayuenyong
Keyword(s):  
Dynamic Capabilities ◽  
Controller Design ◽  
Electronic Device ◽  
Sliding Mode ◽  
Voltage Sags ◽  
Dynamic Voltage Restorer ◽  
Bee Algorithm ◽  
Voltage Restorer ◽  
Dynamic Voltage ◽  
Fuzzy Sliding Mode

This paper proposes an application of the bee algorithm (BA) in order to design an optimal proportional-integral-derivative (PID) controller, a sliding mode (SM) controller, and a fuzzy sliding mode (FSM) controller for a dynamic voltage restorer (DVR) system. The DVR is an electronic device, which has excellent dynamic capabilities and is well-suited in protecting critical or sensitive loads from short duration voltage sags or swells. The parameters of the optimal PID, SM, and FSM controllers are automatically tuned by the BA to compensate for the magnitude of load voltage by injecting the compensating voltages when the source voltage sags and swells. In order to confirm these concepts and to show that the proposed strategy outperforms other strategies when it is compared to others using the trial and error method, experimental and simulation setups were implemented in various cases.

Performance Study of Dynamic Voltage Restorer (DVR) in Order to Power Quality Improvement

2012 ◽  
Vol 622-623 ◽  
pp. 1830-1834 ◽  
Author(s):  
Mojtaba Hakimzadeh ◽  
Reza Sedaghati
Keyword(s):  
Power Quality ◽  
Distribution System ◽  
Distribution Networks ◽  
Voltage Sag ◽  
Voltage Sags ◽  
Performance Study ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Dynamic Voltage ◽  
Types Of Faults

Power quality has become an increasingly important topic in the performance of many industrial applications. One of the major issues in improving power quality in distribution networks is the mitigation of voltage sags. Voltage sag can be mitigated by voltage and power injections into the distribution system using Dynamic Voltage Restorer (DVR). The DVR is a powerful controller that is commonly used for voltage sags mitigation at the point of connection. This paper describes of modeling and analysis of DVR. Different types of faults are applied for DVR in distribution network and the responses of the system for these disturbances are examined. Simulation results obtained in PSCAD/EMTDC also prove that the DVR can mitigate voltage sag and protect bus bar voltage from various types of faults.

scholarly journals Compansation of Electrical Voltage in Distribution System by Dynamic Voltage Restorer

2019 ◽  
Vol 3 (2) ◽  
Author(s):  
Soe Soe Ei Aung ◽  
May Phone Thit
Keyword(s):  
Power Electronics ◽  
Power Quality ◽  
Distribution System ◽  
Voltage Sag ◽  
Voltage Sags ◽  
Dynamic Voltage Restorer ◽  
Load Voltage ◽  
Electrical Voltage ◽  
Voltage Restorer ◽  
Dynamic Voltage

Electrical ac power systems consist of generation systems, transmission and distribution networks. The large three phase industrial loads at various distribution and transmission voltages as well as single-phase residential and commercial loads are supplied by the networks. Nowadays, the power quality such as voltage sags/swell, transient interrupts and harmonic distortions in sinusoidal waveforms are concerned with most of the electrical loads. The power quality problems such as voltage sags, swells and harmonics are caused by the widespread using of power electronics devices in power system. In this paper, electrical voltage sags/swells of power quality problems are considered because this problem is one of the most severe disturbances to the industrial equipment of distribution system. Thus, mitigation of these voltages in distribution system is necessary. So, series connected power electronics based device such as Dynamic Voltage Restorer (DVR) is chosen to compensate these voltage for mitigating quickly the voltage sag/swell in the system and restoring the load voltage to the nominal value. For case study, Myaungtagar industrial zone is chosen due to furnaces and large motor drives that cause the common problems such as voltage sag/swell in this system. In this paper, performance analysis of voltage sag/swell compensation of power distribution system with Dynamic Voltage Restorer (DVR) under various fault conditions is carried out. The proposed configuration model uses MATLAB/SIMULINK and the performance of voltage compensation and restoration of load voltage to the nominal value with DVR under various fault conditions is verified by the simulation results.

scholarly journals Power quality improvement using dynamic voltage restorer in distribution system PT. DSS Power Plant

2018 ◽  
Vol 218 ◽  
pp. 01003 ◽  
Author(s):  
Wahyuni Martiningsih ◽  
Untung Yudho Prakoso ◽  
Herudin
Keyword(s):  
Power Plant ◽  
Distribution System ◽  
Voltage Drop ◽  
Short Circuit ◽  
Compensation System ◽  
Voltage Source ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Voltage Compensation ◽  
Dynamic Voltage

In the power plant power system, voltage drops often occur and one of the contributing factors is a short circuit that affects the performance of motor drivers on the mills in the generator. In this research proposed the use of compensation dynamic voltage restorer (DVR) to damped voltage sag. The DVR using a three-phase voltage source inverter (VSI) with voltage loop control (PI). To detect the voltage drop system using park transform and apply it in the voltage regulator as a control system function that detects the voltage amplitude at the sensitive load continuously. The result of simulation in system distribution with active load 280 kVA and 50 kVAR reactive, before a voltage compensation system 0.67 pu and after voltage compensation system becomes 0.99 pu on nominal voltage 0f 380V. The performance of DVR is reliable because it is able to compensate quickly to changes in the value of the voltage

The Design of Regional Compensation DVR in Medium Voltage System

2014 ◽  
Vol 654 ◽  
pp. 146-155
Author(s):  
Zheng Guo Zhu ◽  
Hua Ying Zhang ◽  
Sen Jing Yao ◽  
Jun Wei Cao ◽  
Jin Tao Yang
Keyword(s):  
Calculation Method ◽  
Distribution System ◽  
Reference Voltage ◽  
Voltage Sags ◽  
Dynamic Voltage Restorer ◽  
Medium Voltage ◽  
System A ◽  
Voltage Restorer ◽  
Dynamic Voltage ◽  
Simulation Results

The design of a Dynamic Voltage Restorer that is suitable for compensating regional voltage sags in 10kV distribution system is introduced in this paper. The design of the main circuit based on cascaded H-bridge, the device for energize DVR and the transformer-less coupled circuit are presented. For the voltage sags in neutral point non-grounded system, a reference voltage calculation method with the aim is to restore the line voltages on the load side is put forward. The simulation model of a substation including the designed DVR device has been built in PSCAD, and the compensation results under different fault types are simulated and analyzed, the influence of the energize device on the distribution system is studied. The simulation results verify the correctness and effectiveness of the design of DVR hardware and the reference voltage calculation method.

Study of Dynamic Voltage Restorer Based on Repetitive Control Algorithm

2013 ◽  
Vol 765-767 ◽  
pp. 2525-2528 ◽  
Author(s):  
Tian Yu Liu
Keyword(s):  
Control Strategy ◽  
Control Algorithm ◽  
Repetitive Control ◽  
Electric Power System ◽  
Voltage Sags ◽  
Dynamic Compensation ◽  
Dynamic Voltage Restorer ◽  
Voltage Restorer ◽  
Three Phase ◽  
Dynamic Voltage

This paper introduces a dynamic voltage restorer with independent three-phase structure, which is controlled on repetitive control strategy. Computer simulation of the whole repetitive control system is performed by Matlab/Simulink, and the results show that the effect of dynamic compensation can meet the request when voltage sags happened in electric power system.

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