The more than 25 years of experience of the KoCoS engineering team and the “PowerFactory” grid calculation program from DIgSILENT provide a good basis for successful grid calculations. Based on load flow and short-circuit calculations, questions about voltage drop, protection functions and selectivity can be answered reliably. We calculate medium and low-voltage grids for our customers in the automotive industry, industrial and public grid operators, public state and federal properties and the petroleum industry throughout Germany.
The following spotlights briefly describe some of the missions of this strong team:
Phone: +49 (0) 5631 95960
E-Mail: info(at)engineering.kocos.com
The seaward end of an HVDC land connection of an offshore wind farm is the HVDC converter station. To operate these stations, extensive medium-voltage and low-voltage grids are required in both AV and SV operation. The grid calculation accompanying the project ensures compliance with the planned voltage drops and checks the safe disconnection of the protective devices.
As part of the critical infrastructure, wastewater treatment plants and tank farms must be returned to diesel-based (emergency) operation as soon as possible after a blackout. Various operating scenarios were developed and calculated for partial network restoration through to continuous emergency operation.
The medium-voltage and low-voltage grids for the individual halls were calculated during the planning and assembly phases. This meant that additional cost-intensive extra work and reworking could be avoided during installation.
Transmission grids are undergoing a major transformation. While maintaining their efficiency, they must accommodate an ever-increasing share of volatile and non-regulatable power generation. At the same time, minimizing transmission system costs is required.
Planning and operation of industrial networks are becoming more challenging due to the increased use of power electronics, highly complex automation systems, and dependence on islanding. Faced with these challenges while ensuring continuity of production, power quality, and personnel protection, careful modeling and analysis of industrial electrical networks is paramount.
Challenges such as reverse power flow and voltage rise due to distributed generation as well as the integration of electromobility have led to a significantly higher effort in the planning and operation of distribution grids. Sophisticated and comprehensive grid optimization tools are required to perform the associated studies.