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Control systems manage the automated systems that run our world. The security of these systems is critical, but most modern best practice guidelines focus on enterprise security, similar to that of traditional information technology and security. This paper provides eight basic guidelines to increase cybersecurity in control systems.
Variable generation dispatch and load distribution patterns due to renewables connected to transmission, distributed energy resources connected to the distribution system and the operation of electricity markets warrant that historical load and generation conditions be modeled in offline studies on a continuous basis instead of using the traditional peak load cases for Operations Planning studies...
SCADA (supervisory control and data acquisition) is a sophisticated system that allows controlling devices via coded signals into communication channels. Its main function is to allow the control of remote power system devices from a remote control center. In addition to the SCADA, complex software is required in order to analyze the data obtained from the system. Without proper analysis, the operator...
This document describes the usage and meaning of Energy Management Systems (EMS), applied both for utilities and end customers as a mean to supervise electricity usage and obtain energy savings. The approach also does a benchmarking on existing systems and appliances, together with the increasing usage of EMS in the newest smart grids.
This paper highlights an environment based in smart grid concepts to build an integrated architecture of modern control centers. The proposal allows the integration of management and commercial applications with decision support applications, such as MDMS, OMS, GIS, SCADA e CIS. To illustrate the paper is presented a project description of a self-healing strategy to deal with location and identification...
This paper presents the experiences in enhancement of Energy Management System (EMS) real time model, development and implementation of an application, and methodologies to validate the EMS model at Vermont Electric Power Company (VELCO), a ‘transmission only’ company in Vermont and a Local Control Center (LCC) for Independent System Operator in New England (ISO-NE). Methodology is developed for comprehensive...
This paper presents the experiences in enhancement of Energy Management System (EMS) real time model, development and implementation of an application and methodologies to validate the EMS model at Vermont Electric Power Company (VELCO), a ‘transmission only’ company in Vermont and a Local Control Center (LCC) for Independent System Operator in New England (ISO-NE).
From its principle, system structure, main function and realization method, measurement information online intelligent test and evaluation system in Changchun grid is introduced in this paper. The correctness and effectiveness of the system are proved by actual operating experience.
With smart grid typically characterized by attributes like, reliable and secure, efficient and economic, environment friendly and safe to the extreme extent as feasible, it calls for quality transmission and distribution operation backed by generation with optimum utilization of assets considering expected level of commitment from all stakeholders. Latter encompass investors, owners, traders, service...
With the recent emphasis on environmental issues and concerns for global warming, many states have adopted aggressive Renewable Portfolio Standards (RPS) requiring electricity suppliers to obtain a minimum percentage of their power from renewable energy resources by a given date. Among various states, California leads with an RPS of 20% by 2010, and 33% by 2020. Most renewable resources, by their...
This paper outlines the reasons why COES wants to adopt the CIM standard and the road map to make its information systems compatible with CIM. COES information system is an internally developed system (SICOES), and would be the starting point to adopt CIM. It is necessary to integrate the data of the third party software used in COES for power system analysis activities to the SICOES central equipment...
In recent years, to build smart grid becomes a new focus, and how to fully collect and make effective use of the information of the intelligent secondary device get abroad attention. This paper presents a grid fault information intelligent analysis and processing system. It is a platform of fault information intelligent processing, used for an incorporate control center system of province and district...
Korea power exchange (KPX) plays a pivotal role in South Korea's electric power industry. As a neutral and independent organization, KPX coordinates the flow of electricity through all transmission networks of South Korea, ensure reliable operation of the grid, operate cost-based competitive electricity market, and plan long-term generation/transmission expansion to secure reliable power supply. To...
NSTAR is an investor owned utility transmitting and delivering electricity and gas to customers in Eastern and Central Massachusetts. In the process of becoming a Local Control Center, which allows NSTAR to work more closely with the Independent System Operator - New England (ISO-NE), NSTAR upgraded its SCADA system and added an integrated Energy Management System (EMS) in 2007. In anticipation of...
This paper addresses the practical implementation of real-time stability assessment and monitoring at Long Island Power Authority (LIPA). After a brief introduction of the power system under LIPA's jurisdiction in the context of the Eastern US interconnection, the CIM compliant functionality added to the existing SCADA/EMS facilities is presented. On this background, the implementation of real-time...
Eskom's Transmission division is commissioning a new Energy Management System (EMS) known as TEMSE. This EMS included requirements for advanced alarm processing facilities and enhanced Human Machine Interface functionality. The requirements covered alarm data reduction and the provision of "what-happened" explanations following a disturbance on the power system. The implemented functionality...
The reliability of the power system in a future short term is studied according to the current state. Basing on this, we can alarm and prevent the outage to assure the safety and reliability of the power system. Traditional reliability is an expected value of long-term reliability level under the fixed operating mode, which cannot reflect the real time reliability level under the current operational...
Prior to the start up of the standard market design (SMD-2), the New York independent system operator (NYISO) used various tools to maintain and update three network models used to support the energy management system (EMS) and business management systems (BMS) applications. The process of maintaining and updating the network models for EMS & BMS applications became more challenged and cumbersome...
Cyber system plays an important role in supervising and controlling power system. Besides its contribution of much convenience to power industry, the cyber system brings some potential danger because of its inherent vulnerability. It is significant to assess the vulnerability of cyber system, determine its risk to power industry, find out the weak parts, set appropriate strategies to avoid the probable...
The following topics were dealt with: energy storage technologies; on-line reliability assessment and control; HVDC and FACTS technologies; communications for distribution system; power transformer; wind farm; SCADA; EMS; power market; power electronics; power system planning; power quality; power system harmonics; power system protection; power system control; power system simulations; substation;...
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