Development of a power-hardware-in-the-loop application — Power grid emulator by using ‘voltage source inverter cumulation’

Abstract The increasing use of electrical vehicles aroused the problem of batteries charging and the consequent interface with the power grid. Commercial charging solutions are mostly based on unidirectional power flow converters; however, bidirectional power flow converters are an interesting solution when considering smart microgrid applications, with benefits in efficient energy use. In this context, the paper presents a bidirectional power flow converter for grid-to-vehicle (G2V) or vehicle-to-grid (V2G) applications. The conversion system is based on a three-phase voltage source inverter (VSI), which assures the grid connection with a unitary power factor. The direct current (DC) bus of the voltage source inverter is connected to a DC/DC converter that controls the battery power flow. This conversion system can operate in G2V mode when charging the battery or in V2G mode when working as an energy storage system and the power flow is from the battery to the power grid. The conversion system model is presented as well as the control strategy proposed. Simulation and experimental results showing voltages and currents in the circuit are also presented.

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An experimental study of the unbalance compensation by voltage source inverter based STATCOM

International Journal of Power Electronics and Drive Systems (IJPEDS) ◽

10.11591/ijpeds.v7.i1.pp45-55 ◽

2016 ◽

Vol 7 (1) ◽

pp. 45

Author(s):

Anas Benslimane ◽

Jamal Bouchnaif ◽

Mohamed Azizi ◽

Khalid Grari

Keyword(s):

Experimental Study ◽

High Voltage ◽

High Speed ◽

Power Grid ◽

Dynamic Regime ◽

Voltage Source ◽

Voltage Source Inverter ◽

High Speed Railway ◽

Reduced Scale

This work presents an experimental study of the unbalance compensation caused by the high speed railway substations in the high-voltage power grid with a shunt voltage source inverter based STATCOM. This experimental study is realized on a reduced scale prototype. The Control of inverter is implemented in a DSP card. The practical results presented in this paper are shown the performance of unbalance compensation by VSI_STATCOM in static and dynamic regime.

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Power Grid Voltage Modified Direct Power Control (DPC) for a Weak Grid Connected to Voltage Source Inverter (VSI) and Stability Analysis

International Journal for Research in Applied Science and Engineering Technology ◽

10.22214/ijraset.2020.31080 ◽

2020 ◽

Vol 8 (8) ◽

pp. 989-997

Author(s):

Ishteyaque Zafar

Keyword(s):

Stability Analysis ◽

Power Control ◽

Power Grid ◽

Voltage Source ◽

Voltage Source Inverter ◽

Direct Power ◽

Direct Power Control ◽

Grid Voltage ◽

Weak Grid

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Enhancement of Power Quality in Power Grid System using Dual Voltage Source Inverter

International Journal of Recent Technology and Engineering - 2 ◽

10.35940/ijrte.a1890.078219 ◽

2019 ◽

Vol 8 (2) ◽

pp. 827-832

Keyword(s):

Fuzzy Logic ◽

Power Quality ◽

Fuzzy Logic Controller ◽

Power Grid ◽

Pi Controller ◽

Voltage Source ◽

Grid System ◽

Voltage Source Inverter ◽

Nonlinear Load ◽

Micro Grid

In power grid system power quality improvement plays an important role. Dual Voltage Source Inverter (DVSI) scheme is proposed to improve the aspects of Power and consistency of the micro grid system. Here we use Distributed Energy Resources (DER) for power exchange and unbalanced load compensation and nonlinear load in the system. Load sharing and power injections are done by grid interactive inverters in micro-grid. Based on Instantaneous Symmetrical Component Theory (ISCT), control algorithm is developed. For extraction of positive sequence voltage, dq0 transformation is done. An inverter connected to a 3- phase four- wire distribution combination is employed to test the managing strategy of the system. In this work we mainly focused on the assessment of overall performance of Proportional Integral (PI) controller and Fuzzy Logic Controller (FLC). Thus, the FLC provides increase in reliability, better performance of micro grid, less bandwidth requirements of inverters when compared to PI controller. The proposed system is validated by MATLAB simulation methods using PI controller and Fuzzy Logic Controller.

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