| 1. |
- Bollen, Math, et al.
(författare)
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The Swedish government inquiry on smart meters and intelligent networks
- 2011
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Ingår i: Proceedings of CIRED 21st International Conference on Electricity Distribution.
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Konferensbidrag (refereegranskat)abstract
- The Energy Markets Inspectorate has conducted an inquiry on smart grids during 2010 and submitted the resulting report to the Swedish government. The inquiry has identified a number of barriers against the introduction of new technology and a number of proposals are made to remove the barriers: an independent council to gather and spread knowledge on smart grids; incentives for network operators to create new services and increase network performance; an action plan for the future development of the electricity network; a new structure of network tariffs to reduce peak loads and price peaks; and functionality requirements on information to customers to allow them to actively participate in the market.
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| 2. |
- Brekke, Karstein, et al.
(författare)
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Monitoring of and regulations on quality of electricity supply in European countries
- 2009
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Ingår i: CIRED 20th International Conference on Electricity Distribution. - Red Hook, NY : Curran Associates, Inc.. - 9781615675227
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Konferensbidrag (refereegranskat)abstract
- The Council of European Energy Regulators (CEER) publishes regularly benchmarking reports on the electricity quality of supply (EQS) in its member countries. This paper introduces the content of and describes some of the important highlights from the content given in the 4th CEER Benchmarking Report on Quality of Electricity Supply [1], which is based on detailed information gathered from 27 European countries.
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| 3. |
- Kolessar, Remy, et al.
(författare)
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A new physics-based circuit model for 4H-SiC power diodes implemented in SABER
- 2001
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Ingår i: Proc. of the Sixteenth Annual IEEE Applied Power Electronics Conference and Exposition, 2001, APEC 2001, vol. 2, 4-8 March 2001.. ; , s. 989-994
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Konferensbidrag (refereegranskat)abstract
- A circuit-oriented model for 4H-SiC power diodes is presented. The modeling technique used in this work was previously applied to a silicon (Si) power diode model for both turn-on and turn-off transients, and presents a good trade-off between accuracy and speed. The model is physics-based, but includes judicious approximations for fast calculation, and includes up-to-date physical models for silicon carbide, with temperature dependence. The proposed model is practically implemented in the circuit simulator SABER, using the MAST modeling language. Model performances are compared to measurements on 2.5 kV 400 A Si IGBT/SiC diode modules from ABB at various input currents.
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| 4. |
- Kolessar, Remy, et al.
(författare)
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An experimentally validated electro-thermal compact model for 4H-SiC power diodes
- 2001
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Ingår i: Proc. of IEEE International Symposium on Industrial Electronics ISIE, 12-16 June 2001, vol. 2.. ; , s. 1345-1350
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Konferensbidrag (refereegranskat)abstract
- The implementation of a circuit-oriented model for high-current, high-voltage 4H-SiC power diodes is presented. The compact modeling technique used presents a good trade-off between accuracy and speed for modeling of bipolar power devices, and a high flexibility for inclusion of various physical models. Implementation in the SABER circuit simulator of the model is performed using the MAST hardware description language (HDL). Up-to-date physical models for 4H-SiC semiconductor materials including thermal dependence, which are relevant for the device switching behavior are evaluated and implemented in the compact model. Simulation results using the proposed model are compared to both measurements and device simulations on 2.5 kV, 400 A Si-IGBT/4H-SiC diode modules from ABB at various circuit and temperature conditions. The model has proven to be a valuable simulation tool for investigation of future power circuit designs based on SiC technology.
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| 5. |
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| 6. |
- Kolessar, Remy, et al.
(författare)
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Electro-Thermal Circuit Model for the Power Diode Turn-On Process
- 2000
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Ingår i: Proc. of the IEEE Nordic Workshop on Power and Industrial Electronics, Aalborg, Denmark, June 2000.. ; , s. 69-73
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Konferensbidrag (refereegranskat)abstract
- In this paper, a physics-based, electro-thermal model for thepower diode turn-on is presented. The model, implementedin the circuit simulator SABER, is based on an approximationof the carrier distribution in the n-base of the diode usingsecond degree polynomials, resulting in a fast but accuratecalculation method. The turn-on physics is accuratelydescribed by taking into account low injection level as well asa correct transport equation for the minority carriers. Modelperformances are compared both to device numerical simulationsand measurements and show good agreements forvarious circuit and temperature conditions, as well as for differentdevice designs.
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| 7. |
- Kolessar, Remy, et al.
(författare)
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Physics-Based Power Device Models in SABER - Implementation Issues
- 2000
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Ingår i: Proc. of the IEEE Computer in Power Electronics, COMPEL 2000, Blacksburg, USA, August 2000.. ; , s. 18-22
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Konferensbidrag (refereegranskat)abstract
- In this paper, the implementation issues of physics-based power device models in the SABER circuit simulator through the MAST High Description Language (HDL) are discussed. The possibility to use dynamical if-statements in the system matrix (equations section) of a MAST template is presented. By means of this implementation method, systems of differential equations for boundary value problems can be efficiently implemented and solved in SABER. To illustrate the method, the implementation of a physics-based power diode model is taken as an example. Simulation results using this model are presented to demonstrate the efficiency and numerical stability of the method.
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| 8. |
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| 9. |
- Ström, Lars, et al.
(författare)
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Voltage quality regulation in Sweden
- 2011
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Ingår i: Proceedings of CIRED 21st International Conference on Electricity Distribution.
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Konferensbidrag (refereegranskat)abstract
- This paper presents the voltage-quality requirements set by the Swedish energy regulator. Requirements have been set for harmonics, unbalance, slow voltage variations, voltage dips, voltage swells and rapid voltage changes, which are all discussed in this paper. This paper further discusses recommended measurement methods for verification of compliance with the requirements and the way in which voltage-quality regulation takes place in practice.
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| 10. |
- Torstensson, Daniel, et al.
(författare)
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The Swedish benchmarking report on continuity of supply
- 2011
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Ingår i: Proceedings of CIRED 21st International Conference on Electricity Distribution.
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Konferensbidrag (refereegranskat)abstract
- This paper presents the results of the annual evaluation of the reliability in local electricity networks in Sweden. A distinction is made in SAIFI and SAIDI for rural, suburban and urban networks. The values are significantly higher for rural than for urban networks; also the spread between network operators is higher for rural networks. Data is also presented on the number of very-long interruptions and on the investment and running costs by the network operators. Whereas the running costs remain constant, the investments have increased almost three-fold since 2004.
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