Exchange Platform

Author: PECC2_TRD_Power System Study Department
Type: Model
Downloaded: 123 times
Date: 2021-09-03

Large Grid Modeling - Vietnam 500-220kV Power System

Description:
Large scale grid modelling of Vietnam 500-220kV power system in 2015. Using to calculate transient in power system.

Tag(s): Large Scale Grid, Power System

Author: thpapad
Type: Document
Downloaded: 124 times
Date: 2017-11-03

MIMO-OFDM Narrowband-PLC in Distribution Systems: Impact of Power Transformers on Achievable Data Rates

Description:
Power-line communication (PLC) is gaining a renewed interest, due to the smart grid (SG) emerging communication requirements. Among other communication technologies, PLC is a very efficient and feasib... see morele solution, especially for the extended SG distribution networks. However, it is very challenging to consider both the medium- and low-voltage parts of the distribution network as a whole communication medium, due to the attenuating effects of distribution transformers, limiting PLC applicability. In this paper, data transmission through distribution transformers is investigated by means of multiple-input multiple-output (MIMO) narrowband power-line communication (NB-PLC) system, utilizing orthogonal frequency-division multiplexing (OFDM) technology. Multi-conductor distribution line and measurement-based transformer models are developed to characterize the MV-LV PLC channel. In addition, OFDM signal processing techniques are applied to enhance the achievable data rates. The transmit power budget and bit allocation across the OFDM sub-channels of the spatial beams are optimized to maximize the data rate through the distribution transformer. The achievable data rates are calculated and systematically analysed for different scenarios to investigate the effects of the distribution lines, connected loads, noise models, etc. Results reveal the superiority of the proposed MIMO design against the traditional SISO systems. In addition, the possibility for an extensive and reliable application of MV-LV PLC communications through distribution transformers is shown.

Tag(s): Distribution lines, distribution transformers, MIMO-OFDM, power-line communication, smart grids

Author: h.gras
Type: Library
Downloaded: 1353 times
Date: 2016-03-16

Micro-Grid library

Description:
Convenient library to study Micro-grid. Contain:
- a 3-phase inverted with dq0 control (PQ, PV, VF, droop)
- a battery model (Ideal, i-Ion, Lead-Acid, NiMH, NiCD)
- a PV park
- Win... see mored parks
- low pass filter
- on-off delays
- PI controller

If anything, please contact me: Henry - h.gras@powersys-solutions.com

Tag(s): Micro, grid, smart, inverter, dq0, battery, BMS, VSC, filter, delay, trigger, Wind, PV, photovoltaic, park, power, electronics

Author: n.sene
Type: Publication
Date: 2015-04-02

Power system islands, autonomous microgrids and relevant instrumentation

Description:
Unplanned power system islanding is usually seen as a major risky operating condition and specific countermeasures are applied in order to avoid it. However the capability of voluntary disconnection f... see morerom the external grid and autonomous operation is often a requirement for some industrial power systems and power plants. The panel session at the 2012 IEEE Innovative Smart Grid Technologies Conference on
“Power system islands, autonomous microgrids and relevant instrumentation” aims at providing an occasion to exchange ideas and experiences in order to envisage situations in which voluntary power system islanding may be useful and to define the instrumentation required for a reliable operation in islanded conditions. This paper, provided by the organizers, reviews some activities recently carried out on this topic at their institution.

Authors: A. Borghetti, L. Peretto

Tag(s): Power systems islanding, microgrids, measurements.

Author: n.sene
Type: Publication
Date: 2015-04-02

SITL and HLA Co-simulation Platforms: Tools for Analysis of the Integrated ICT and Electric Power System

Description:
Due to the necessity of developing analysis tools in the integrated ICT and power system domain, this paper describes and compares the architecture and configuration of two different ITC-power system ... see moreco-simulation approaches called SITL (System in the Loop) and HLA (High Level Architecture) Co-simulation platforms. Both platforms make use of the communication network simulator OPNET (Optimum Network Performance). As indicated by the names, the former operates in real time, in order to perform SITL simulations, whilst the latter is based on the HLA interface between OPNET and the power network simulation environment EMTP-rv (Electromagnetic Transient Program). We provide several details on their implementation and present their features by means of the results obtained for two test cases. The paper aims at clarifying the type of analysis that can be effectively carried out by using the two different platforms.

Authors: Riccardo Bottura, Davood Babazadeh, Kun Zhu, Alberto Borghetti, Lars Nordström, Carlo Alberto Nucci

EuroCon 2013 • 1-4 July 2013 • Zagreb, Croatia

Tag(s): Co-simulation, OPNET, EMTP, High level architecture, System in the loop, Smart grid, OPAL-RT.