Outage work planning has been essential to maintain the powergridsystem. For the operators, the planning is troublesome. It is caused by too complex process. The past few years, we have been developing Outage Work p...
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Outage work planning has been essential to maintain the powergridsystem. For the operators, the planning is troublesome. It is caused by too complex process. The past few years, we have been developing Outage Work p...
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ISBN:
(数字)9798350355079
ISBN:
(纸本)9798350355086
Outage work planning has been essential to maintain the powergridsystem. For the operators, the planning is troublesome. It is caused by too complex process. The past few years, we have been developing Outage Work planning Collaboration system (OWCS) with some mathematical optimization techniques. Especially, Security Constrained Economic Dispatch(SCED) is extened in some ways to handle various powergrid situations.
The protection and control system in substations has undergone significant evolution since the era of hardwired systems. In recent years, the increasing trend of digital transformation (DX) across various fields, incl...
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The protection and control system in substations has undergone significant evolution since the era of hardwired systems. In recent years, the increasing trend of digital transformation (DX) across various fields, incl...
The protection and control system in substations has undergone significant evolution since the era of hardwired systems. In recent years, the increasing trend of digital transformation (DX) across various fields, including protection and automation systems, has led to the promotion of IEC 61850 process bus-based digital substations. However, recent analysis and evaluation have revealed numerous challenges in various aspects, such as technical issues, system performance, test methods, maintenance, and economic considerations. Moreover, many of these challenges lie outside the scope of international standards like IEC 61850 and IEC 61869. As a result, the worldwide implementation of digital substations has been hindered. This paper aims to describe the issues encountered during the implementation of process bus technology and propose solutions that focus on optimizing system configuration based on our experience in implementing digital substation projects and developing MU and IED. Addressing these issues is crucial to fully unlocking the potential of digital substations. One of the most promising advantages is the availability of digital data collected from substation equipment. By utilizing this data, overall powersystem operational efficiency can be enhanced, and equipment management can be optimized. Predictive maintenance can be implemented, enabling the early detection of potential equipment failures, minimizing unplanned outages, and reducing the need for emergency repairs, which contribute to unnecessary carbon emissions and equipment downtime. Ultimately, digital substations empower end-users to reduce greenhouse gas emissions, improve energy efficiency, and seamlessly integrate powersystems, thereby supporting the carbon-neutral initiative and facilitating the transition towards a sustainable energy future.
The increasing use of solar power connected to the public grid and the associated concern for deteriorating power quality triggered the formation of a joint working group with the aim to describe and quantify this imp...
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New smart grid technologies, such as solar panels and electric vehicles, are increasing in popularity, but there is uncertain how this will affect the load profile for households, and how the Distribution system Opera...
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New smart grid technologies, such as solar panels and electric vehicles, are increasing in popularity, but there is uncertain how this will affect the load profile for households, and how the Distribution system Operators should incorporate these changes in their grid planning. In this paper, a prototype for estimation and forecasting of the electricity demand (active power) for households is presented. The tool uses hourly data for load, temperature and irradiation as input to create a 24-hour load profile based on season and day type, as seen from the connection point to the grid. It is possible to add a solar panel, charging of electric vehicles or demand response, to see how these smart grid technologies may alter the profile. The tool is, in addition to Norwegian data, further tested on data from Germany and the UK. The results show the calculated profiles for households with solar panels in Norway, Germany and the UK, in both winter and summer time. Further, it becomes obvious that charging of electric vehicles has a profound impact on the load profile of a household.
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