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The evaluation of intelligent transformation level of primary equipment in substation is an important part of the second batch of intelligent substation pilot project. In this paper, pilot projects for the transformation of smart substations in several regional power grids are extensively investigated, of which the following work is done on the basis: Firstly, the evaluation model of intelligent transformation...
The paper deals with the on-line monitoring system integrated by the Italian TSO (Terna S.p.A.) in the HV substations. Arose from the long experience achieved, the latest integrated system is the SMOAT (acronym for Monitoring System for HV, in Italian). Infrastructure introduced by the online monitoring system, integrated into the Terna's existing expert systems (PSE, MBI) are also presented as well...
We cover some practices and methods in creating effective cyber security architectures for substation and distribution automation systems and products which are robust enough to withstand cyber-attacks and resilient enough to recover in the event of security compromise and keeping device functional and executing its core functionality even during attack. This is achieved by a defense-in-depth strategy...
There is demand for a substation automation system (SAS) that is simple to integrate and provides high performance and flexibility. The increasing application of intelligent electronic devices (IEDs) with International Electrotechnical Commission (IEC) Standard 61850 capacities provides interoperability and advanced communications capabilities in substation protection, coordination, control, monitoring,...
This paper presents results of power quality monitoring collected from transmission system operator (TSO) and several distribution system operators (DSOs) from Romania. The power quality monitoring system is realized in accordance with actual technologies, economic criteria, performance standards and technical codes issued by the Romanian Energy Regulation Authority (ANRE). The implementation of power...
Saudi Aramco electrical control and monitoring system evolved to Power Systems Automation (PSA). The first implementation of PSA was in 2009 following Saudi Aramco Internal Standard 126 imbued with IEC-61850 standard. Since then, search for new automation solution did not stop and the Company's cyber security level of maturity has increased, questing for improved cyber security measures. This document...
Two types of Power Quality Monitoring Systems (PQMSs) — one for TSO and other for DSOs, in accordance with Performance standards and Technical Codes of the Romanian Energy Regulation Authority — ANRE were published. The connection to the grid of the renewable sources could determine the increasing of the emissivity of perturbations and the necessity of the propagation study in order to determine the...
This paper describes the work of CIGRE's JWG B5-D2.46 which is published in technical brochure #603. Described in this paper is a summary of the challenges protection and control engineers and technicians face when required to manage cyber security applications and process for their systems, subsystems and components. When compared to their classical duties for modern power system substation automation...
In this paper, the data of information in intelligent substation are classified, information flow in communication network is analyzed, based on IEC61850 standards, and there are four categories: control and protection unit, the centralized fault recording unit, the monitoring and five-prevention unit and the measuring, in the application systems of substation. And then, the information integration...
This paper discussed the application of online monitoring system based on IEC61850 standard in the smart substation. Firstly, the functions and performance requirements of online monitoring system have been discussed, and the functional model and interface model of online monitoring based on IEC61850 have been established; Secondly, the application schema of online monitoring system has been designed...
With the fast development of the smart grid technology in china, more and more attentions were paid to the condition-based maintenance of the high voltage equipment. To realize the objectives, the standardizations of the online monitoring system hierarchy structure and function are the key steps in the development of the online monitoring system in pilot smart substation project. According to the...
The purpose of this paper is to gather and document the most pertinent information about the “Smart Grid, ” explore its many components, and propose some suitable attributes while considering Distributed Generation (DG) interconnection as a major integral part. Effects of various Smart Grid components on Generation, Transmission, Substation and other sections of the power systems are identified and...
In this paper, a general description of the innovative Enel Distribuzione (ED) power quality data warehouse (PQDW) is carried out; moreover, its application fields will be described, with respect to the synergy with the other ED network's management systems in the new smart grids perspective. The analysis of the MV network power quality (PQ) performances is important not only to verify the network's...
At the end of 2006, Chinese WAMS/GPS working group has started the renewal of PMU standards. Synchrophasor measurement, dynamic recording and real-time communication are defined as primary functions of PMU. Working group suggest PMU shall measure generator rotor angle. The bandwidth of 45-55 Hz has been versified in new draft following the PMU testing guide of NASPI-North American Synchrophasor Initiative.
Substation automation systems (SASs) are widely used for the purpose of control, protection, monitoring, communication etc. in substations to improve the reliability of the power system. SASs adopting IT based solutions such as Ethernet LAN have recently become more common, although hardwired control has been used in the past in earlier versions of SAS utilizing simple communication methods. Moreover,...
Power quality has been gaining increasing interest among the different customers in the Brazilian electrical sector. As a consequence, one of the many goals fostered by the exclusive and independent system operator in Brazil (ONS - Operador Nacional do Sistema Etrico) is seeing that the energy supplied at the customerpsilas connection of the transmission network meets the established service standards...
The profitability pressure on utilities as a consequence of market liberalization and other influences is leading to the reconsideration of the entire secondary technology inside the substation. Possible synergies between protection, control and monitoring have to be considered. At the same time, assets have to be used in a more efficient and profitable way and an increased security of energy delivery...
The profitability pressure on utilities as a consequence of market liberalization and other influences is leading to the reconsideration of the entire secondary technology inside the substation. Possible synergies between protection, control and monitoring have to be considered. At the same time, assets have to be used in a more efficient and profitable way and an increased security of energy delivery...
The standard applies to systems used for monitoring, switching and controlling electric apparatus in unattended or attended substations, generating stations and power utilization and conversion facilities. Definitions of systems used for supervisory control, data acquisition and automatic control are presented and functional characteristics are described.<<ETX>>
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