A major goal for the ISO/IEC15118 standard for controlling the charging process for electric vehicles is the simplicity and reliability of use. Severe threats for a simple use are implementations of the standard which are not interoperable to each other. A traditional approach to reduce this threat is the setup of testivals between all implementations to explicit test interoperability. However this approach is complex and expensive as it requires extensive test and the coordination between all implementers. The project eNterop takes a different approach to enable a broad acceptance of the ISO/IEC 15118 and IEC 61851 specification on the market and to facilitate a large number of implementations. It defines conformance tests which can be fully automated. This is a quite new approach for machine to machine interface specifications which not only cover communication but also power interfaces. With that implementers can independently test their protocols including the power flow control and increase the likelihood of interoperable implementations without expensive testivals. This paper presents the approach of conformance tests for combined communication and power interfaces
HVDC-Technology is assuming ever greater importance in the transmission of electric power. This requires development of equipment that takes highly precise and time synchronized measurements in DC systems. The data acquisition, the data transfer and a standardized communication interface are important factors to fulfill the requirements for secure and safe power system operation. This paper describes the development of one such system for HVDC measurement with communications interfaces compliant with IEC 61850. Taking the system modeling as the starting point, the finished measurement system and some initial results of the equipment's operation are presented
The generation of electricity by volatile renewable energy sources, such as wind and sun, has increased significantly in many European countries in the last decade. Such a success is mostly due to the economic incentives given to the power producers by renewable energy sources. It has encouraged many small-and medium-sized enterprises to generate a part of their electricity consumption locally. Such a modern business model has created a new actor within the electric power system: the prosumer. The electricity generated by decentralized power plants in many small-and medium-sized enterprises to date is not integrated into the industrial processes, but it is, firstly, fed into the electric grid and is, successively, withdrawn from the grid. A direct integration of the electric power generated into industrial processes is preferable both from the energetic as well as from the environmental point of view. In order to do this, it is necessary to use Energy Management Systems (EMSs), which control the consumption and/or the energy storage systems optimally according the power produced by the volatile renewable energy sources. Such EMSs will allow the enterprises to develop Industry 4.0 solutions and, therefore, cut the energy costs for manufacturing. This study aims to describe the information and communication architecture as well as the modus operandi of a developed intelligent EMS for the integration of the volatile electricity into an industrial process.
The efficient use of energy is gaining importance globally. Reducing consumption is only one of the benefits. Economic incentives could be used to shift the energy demand and reduce run times of equipment. The standardized definition of energy management systems describes only a system structure without consideration the algorithms or strategies for system efficiency improvement. In the paper the main structure, concept, and basic control schemes for dynamic energy management system is presented. It takes into account a dynamic usage of renewable energy sources, stationary and mobile storages and controllable loads
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