Compressed air energy storage powered dynamic voltage restorer for voltage compensation in three-phase distribution system

2019 ◽  
Vol 46 ◽  
pp. 101420 ◽  
Author(s):  
C.K. Sundarabalan ◽  
Namala Tejasree ◽  
R. Vishnu Shankar ◽  
Yeseswini Puttagunta ◽  
V. Vignesh
SIMULATION ◽  
2016 ◽  
Vol 92 (12) ◽  
pp. 1053-1063 ◽  
Author(s):  
Paweł Szcześniak

A dynamic voltage restorer (DVR) is used in a power distribution system to protect sensitive loads against voltage disturbances. The commonly used DVR system contains a converter with direct current (DC) link and energy storage elements. The DC energy storage part of the system is the most expensive element and has a large value. As an alternative, therefore, DVR systems can use alternating current AC/AC converters without DC energy storage. This paper presents the properties of a DVR system based on a direct matrix converter using three control methods: in-phase, pre-sag, and energy-optimal. The paper defines basic mathematical relationships and static characteristics and describes the range of voltage compensation by use of the described compensation methods. Simulation results are obtained and presented in order to verify the correctness of the compensation. The features of such a DVR system configuration are considered in the context of alternative applications for commonly used converters with DC-link energy storage power converters. Application of the matrix converter in electrical power systems is still not very popular, due to limited output voltage and the complex structure and process control. This article is an attempt to show the usefulness of the matrix converter in spite of its limitations and the complexity of the design.


2018 ◽  
Vol 7 (4.24) ◽  
pp. 53
Author(s):  
Sura.Srinivasa Rao ◽  
Choppavarapu.Sai Babu

This paper presents mitigation of voltage related Power Quality (PQ) issues by using Dynamic Voltage Restorer (DVR). Three phase four wire DVR with modified switching band controller is proposed. A modified filter circuit band controller is proposed for reducing the switching losses, constant switching frequency maintenance and corresponding simulation studies are carried out. Variable hysteresis band (modified band) controller generates accurate injected voltages by using system parameters and low error value between reference injected voltages, actual injected voltages can be achieved, which helps in smoothening and minimizing ripples in PCC (Point of common coupling) voltages. The obtained simulation results are presented.


Author(s):  
Omar Antonio-Lara ◽  
Pedro Martín García-Vite ◽  
Rafael Castillo-Gutiérrez ◽  
Hermenegildo Cisneros-Villegas

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.


2018 ◽  
Vol 218 ◽  
pp. 01003 ◽  
Author(s):  
Wahyuni Martiningsih ◽  
Untung Yudho Prakoso ◽  
Herudin

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


Sensors ◽  
2021 ◽  
Vol 21 (5) ◽  
pp. 1615
Author(s):  
Mehdi Firouzi ◽  
Saleh Mobayen ◽  
Hossein Shahbabaei Kartijkolaie ◽  
Mojtaba Nasiri ◽  
Chih-Chiang Chen

In this paper, an incorporated bridge-type superconducting fault current limiter (BSFCL) and Dynamic Voltage Restorer (DVR) is presented to improve the voltage quality and limiting fault current problems in distribution systems. In order to achieve these capabilities, the BSFCL and DVR are integrated through a common DC link as a BSFCL-DVR system. The FCL and DVR ports of the BSFCL-DVR system are located in the beginning and end of the sensitive loads’ feeder integrated to the point of common coupling (PCC) in the distribution system. At first, the principle operation of the BSFCL-DVR is discussed. Then, a control system for the BSFCL-DVR system is designed to enhance the voltage quality and limit the fault current. Eventually, the efficiency of the BSFCL-DVR system is verified through the PSCAD/EMTDC simulation.


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