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Koch A.S.,TU Dortmund | Myrzik J.M.A.,TU Dortmund | Jendernalik L.,RWE Westfalen Weser Ems Verteilnetz GmbH
ICHQP 2010 - 14th International Conference on Harmonics and Quality of Power | Year: 2010

The effects of a widespread use of Compact Fluorescent Lamps (CFLs) on harmonics in the low voltage grid are analyzed. Therefore, measurements of the harmonic characteristics of nine different brands of CFLs are done. Based on these measurement results, a simulation model is developed, which enables to study the interaction of multiple CFLs. Thereby, the harmonic content of both currents and voltages are considered. Additionally, the impact of the capacitive behavior of CFLs on resonances phenomena is investigated and its consequences for the harmonic spectrum are represented. ©2010 IEEE.

Behrendt F.,RWE Westfalen Weser Ems Verteilnetz GmbH | Dillkotter F.,RWE Westfalen Weser Ems Verteilnetz GmbH | Spitzer H.,Intellgenio GmbH | Wohlfahrth H.,RWE Westfalen Weser Ems Verteilnetz GmbH
GWF, Gas - Erdgas | Year: 2010

Dynamic asset simulation required for gas grid operators: Gas grid operators are substantially limited in their scope by regulatory revenue specifications on their disposable budget for operating expenses. Yet the secure and rule-compliant operation of a gas grid also requires an appropriate use of funds. The core function of asset management is to take this into account while finding a reasonable balance between technically sustainable and economically optimised grid management. This requires, among other things, the development of an asset strategy (i.e. investment and maintenance) that ensures a secure, rule-compliant and reliable supply while limiting the use of funds. One important tool can be found in dynamic asset simulation which can show long-term effects across the entire lifecycle of today's asset strategy. Below, we have outlined the reasons why dynamic asset simulation is so important in order to derive strategic directions for our activities, supported by specific insights to illustrate these findings.

Behrendt F.,RWE Westfalen Weser Ems Verteilnetz GmbH | Badura C.,RWE AG
GWF, Gas - Erdgas | Year: 2010

Asset simulation for gas networks (ASIM Gas) has been a well acknowledged tool within RWE AG to determine the long-term effects of current investment decisions. The calculations of ASIM Gas are used to analyse different strategies in the strategy process and to gain insights for future technical and economical network development and long-term network quality.

Sieverding M.,RWE Westfalen Weser Ems Verteilnetz GmbH
GWF, Gas - Erdgas | Year: 2010

With the new Gas Network Access Ordinance (Gas- NZV), which was published in the autumn of 2010, the federal government has now focused even more strongly on the use of biogas as an energy source to be fed into the natural gas network. With additional incentives, especially with regard to the allocation of investments/costs, the legislator has underlined its goal to feed in about 6 billion m3 of Germany's existing biogas potential into the public natural gas supply networks by 2020 and around 10 billion m3 by 2030 (cf. section 31 GasNZV). The present paper illustrates model solutions for selected plant components which are operated jointly by network operators and connected customers. Furthermore, an approach for an innovative network connection option is presented and specifi c experience with the planning of biogas network connections provided.

Wernekinck U.,RWE Westfalen Weser Ems Verteilnetz GmbH
GWF, Gas - Erdgas | Year: 2011

As the Energy Services Directive and the Energy Industry Act have been implemented, smart metering has become a primarily politically driven topic. The future use of intelligent smart meters that reflect actual energy consumption and actual time of use is aimed at changing consumer behaviour (electricity and gas). After the definition of requirements for metering systems in a position paper by the Federal Network Agency, the German Technical and Scientific Association for Gas and Water (DVGW) published specifications on energy service gas meters (EDL-Zähler Gas), version 2.0, which describe four different approaches to meeting the aforementioned requirements.

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