Dynamic Performance of a Back-to-Back HVDC Station Based on Voltage Source Converters The recent developments in semiconductors and control equipment have made the voltage source converter based high direct current (VSC-HVDC) feasible. This new DC transmission is known as "HVDC Light or Plus by leading vendors. Due to use VSC technology pulse width modulation (PWM) VSC-HVDC has number potential advantages compared with classic HVDC. In this paper, scenario back-to-back link connecting two...

The Impact Study of a Statcom on Commutation Failures in an HVDC Inverter Feeding Weak AC System Static Synchronous Compensator (STATCOM) devices are pure power electronics that use voltage source, IGBT, IGCT or GTO based converters to generate reactive current. This paper illustrates the effect STATCOM connected whit inverter feeding weak network, recovery from commutation failures following side disturbances. MATLAB/SIMULINK simulation results have demonstrated robust performance proposed...

During the last decades, development of electric vehicles has undergone rapid evolution, mainly due to critical environmental issues and high integration sustainable energy sources. The large-scale these will impact operations planning power grid. In this paper, we focused on an vehicle charging/discharging (V2G) (Vehicle grid) management system based a Tree-based decision algorithm for peak shaving, load balancing, valley filling in grid-connected microgrid. main objective is provide...

Transmission lines are a vital link in HVDC transmission systems. Transients originated the themselves (e.g., short circuits, lightning) or substation equipments rectifier, inverter) propagate from one part of system to another through lines. This paper presents summary main line models currently use for steady-state and transients simulations on an link. Simulations have been performed comparing frequency time domains performance distributed parameters model (π) sections model. The...

Energy management in grid-connected Micro-grids (MG) has undergone rapid evolution recent times due to several factors such as environmental issues, increasing energy demand and the opening of electricity market. The Management System (EMS) allows optimal scheduling resources storage systems MG order maintain balance between supply at low cost. aim is minimize peaks fluctuations load production profile on one hand, and, other make most renewable sources exchanges with utility grid. In this...

The multi-terminal High voltage Direct Current (HVDC) using source converters (VSC) is proposed for interconnecting the renewable energy such as offshore wind farms because it can facilitate transnational exchange with high-cost efficiency. This paper analyses a model of three terminals VSC-HVDC system Voltage Margin control strategy PSCAD/EMTDC simulation software. First, begins an overview development Multi-terminal direct current system. second part presents review methodology that...

The development of renewable energy resources has grown significantly in recent years. These distributed are typically connected to the grid through power converters, which can be operated "grid-forming" or "grid-following" mode. But large-scale integration DG units serious repercussions on stability system due their low inertia compared synchronous generator. However, an appropriate control guarantees a dynamic, smooth, and fast converter behaviour island configuration voltage-frequency...

The performance of an HVDC link is significantly affected by the strength AC network to which it connected. interactions between a system and DC associated problems depend CA system. This paper explores effect control on reestablishing operation CIGRE benchmark model after commutation failures at inverter, connected network. Single-phase three-phase side faults are simulated using MATLAB / Simulink software.

Because of the increasing penetration intermittent green energy resources like offshore wind farms, solar photovoltaic, multi-terminal DC grid using VSC technology is considered a promising solution for interconnecting these future energies. To improve stability direct current (MTDC) network, voltage control strategies based on margin and droop technique have been developed investigated in this article. These two are implemented proposed model, ±400 kV meshed MTDC network with four terminals...

The VSC HVDC back-to-back arrangement is used when two asynchronous AC systems need to be interconnected for bulk power transmission or system stabilization reasons. Besides controlling the through flow, it can supply reactive and provide independent dynamic control at its terminals. This paper investigates steady-state transient performance of high-voltage DC (HVDC) based on three-level voltage source converters. study involves analysis active-reactive capabilities (P-Q envelope) including...

Currently, diesel generators are the only source of electricity used by Algerian telecom sites isolated from electrical grid. This production method has a number drawbacks, including pollution, fuel costs, and greenhouse gas emissions. Isolated justified in being cut off main network their locations as well unique geographic climatic features. Because readily available dependable, they have been most despite these drawbacks. Therefore, environment cost producing energy would benefit...

The development of renewable energies and in particular offshore wind energy as well the multiplication High Voltage Direct Current (HVDC) links leads us to consider building a multi-terminal HVDC based on Source Converter (VSC). In this paper, four terminals network with droop control are investigated using PSCAD/ EMTDC simulation software. This strategy is applied for MTDC under change active power, then transient operation conditions. First, paper begins review methodology that controls...

In recent decades, the development of renewable energy has accelerated significantly due to several factors such as changing needs, problem global warming, and depletion fossil fuels. Wind is one generation sources that can be used achieve EU's 2030 targets at a lower cost. However, its intermittent stochastic nature could impact reliability stability electricity system. Therefore, there clear necessity mitigate power fluctuations make most wind energy. To fill this gap, paper presents...

Due to the increase in climatic conditions, world is moving towards renewable energies. Wind power generation (WPG) fueled by wind which almost free, except operation and maintenance (O/M) costs, it's a clean, variable uncertain fuel source, creates difficult implications of its integration into system. With continuing demand for an alternative rather than conventional sources, it vital integrate WPG systems as economically viable production cost electricity prices market. This paper...