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Maintaining or even increasing grid performance is becoming ever more challenging. With growing efforts, expenses grow as well. Innovative technologies and smart data usage can help municipalities and DSOs to master these challenges and to increase their competitiveness.
Economical operation of power grids depends upon spending investments in a smart way. Siemens offers a comprehensive portfolio of products, solutions, and services to thoroughly analyze a grid’s status, prevent asset failures, optimize maintenance of assets, and economically integrate the growing amount of energy from renewable sources.
When faults occur in the grid, control center personnel must respond rapidly and effectively in a targeted manner – despite the highly complex failure situation. The objective is to quickly restore power in the grid. Doing so means that personnel must collect and analyze all necessary information in order to undertake appropriate countermeasures. Profound knowledge of the grid – based on in-depth analysis – helps by reducing effort, increasing availability, and optimizing operational performance.
Benefits for control center operators
Distribution grid monitoring makes it possible to optimize grid maintenance. It enables prioritization of maintenance deployments and early detection of faults in load switches and circuit breakers. Systematic monitoring can identify potential faults and failures before they occur. This also helps to proactively and efficiently plan maintenance cycles based on the state and history of the grid. A long-term database is helpful in assessing when the service life of operating equipment will come to an end.
Benefits of knowing your grid’s condition
Coordinated scheduling and dispatch of distributed energy resources, including energy storage, helps tackle overload situations and voltage problems, and at least balance generation and load. The most efficient manner is to gain access to the distributed energy resources to balance the infeed in combination with the load via a control system. Many industrial processes allow not only a shutdown for load reduction. They also facilitate increased consumption during a high power production period as well. These actions can avoid investments into the grid expansion.
Benefits of balancing generation and load
Analyses of past projects confirm that integrating IT and OT into the engineering process can save time and money. Much of the effort involved in such system integration was attributed to converting between different protocols. High costs were also incurred when connecting differing systems in the control centers and other systems such as energy resource planning. Consequently, power providers and suppliers worldwide have developed common standards in order to reduce costs and effort. This enhances the security of investments.
Benefits of integrating IT and OT
Ensuring stable, resilient grids is one of the essential tasks of municipalities and distribution system operators. The products and solutions from Siemens support them in these efforts. Listed below are just some of the reference projects.
Photovoltaic technology replaces diesel generators
Lower CO₂ emissions
Lithium-ion battery storage systems optimize use of PV installations
Cost-effective operation of a real network as a microgrid
Hybrid structure with wind power, PV, heat and power cogeneration unit, and plant-oil-fired generator
Supply of power to the superimposed grid
Reduced operating costs to supply the campus
Larger proportion of renewable sources
Microgrid is used to research future technologies
The Grand Unified Scheme (GUS) combines battery storage, extended voltage control, demand response, and thermal load calculation in real-time and in a closed-loop process, for optimum network operation
Less voltage fluctuations which could occur as a result of renewable energy sources due to integration
Optimal network management and cost reduction thanks to fast implementation
Increasing electrical generating capacity
Intelligent components ensure reliable and cost-effective operation
Integration of renewable energy sources and compliance with regulatory authority requirements
Implementation of wide-range control system for proactively maintaining grid voltage and a self-healing grid
High energy and cost efficiency, improved voltage quality and shorter outage times
Distributed grid intelligence with self-healing functions
Modernization of an obsolete fault recording system
Increased performance and process efficiency through integration of modern fault recorders
Fast and precise fault identification and fulfillment of current cyber security requirements through future-proof solution