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| 2. |
- Bian, D., et al.
(author)
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Real-time Co-simulation Platform using OPAL-RT and OPNET for Analyzing Smart Grid Performance
- 2015
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In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING. - : IEEE. - 9781467380409
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Conference paper (peer-reviewed)abstract
- The objective of this paper is to present a real-time co-simulation platform for analyzing electric power grid operation, taking into account integrated communication systems. This paper discusses how a co-simulation platform can be set up using OPNET and OPAL-RT as communication and power system simulators, respectively. A simplified distribution automation case study is demonstrated to show how the cosimulation platform can be used to analyze performance of the smart grid operation in real-time.
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| 3. |
- Bollen, Math, et al.
(author)
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Modelling and simulation issues resulting from extended measurements
- 2015
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In: 2015 IEEE Power & Energy Society General Meeting. - Piscataway, NJ : IEEE Communications Society. - 9781467380409
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Conference paper (peer-reviewed)abstract
- Presents a collection slides covering the following topics: supraharmonics propagation; measurement modeling; grid supply terminals; device terminals; secondary emission; primary emission; voltage measurement and capacitor
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| 4. |
- Bollen, Math, et al.
(author)
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Voltage sag indices : future directions
- 2015
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In: 2015 IEEE Power & Energy Society General Meeting. - Piscataway, NJ : IEEE Communications Society. - 9781467380409
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Conference paper (other academic/artistic)abstract
- Presents a collection of slides covering the following topics: voltage-dip characteristics; complex dip recording; transient segment; phase-angle jump; and information extraction.
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| 5. |
- Dimoulkas, Ilias, et al.
(author)
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Probabilistic day-ahead CHP operation scheduling
- 2015
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In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING. - : IEEE conference proceedings. - 9781467380409
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Conference paper (peer-reviewed)abstract
- The production scheduling of combined heat and power plants is a challenging task. The need for simultaneous production of heat and power in combination with the technical constraints results in a problem with high complexity. Furthermore, the operation in the electricity markets environment means that every decision is made with unknown electricity prices for the produced electric energy. In order to compensate the increased risk of operating under such uncertain conditions, tools like stochastic programming have been developed. In this paper, the short-term operation scheduling model of a CHP system in the day-ahead electricity market is mathematically described and solved. The problem is formulated in a stochastic programming framework where the uncertain parameters of day-ahead electricity prices and the heat demand are incorporated into the problem in the form of scenarios. A case study is also performed with a CHP system operating in a district heating network and the value of heat storage capacity is estimated.
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| 6. |
- Jonsdottir, Gudrun Margret, et al.
(author)
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RT-SIL Performance Analysis of Synchrophasor-and-Active Load-Based Power System Damping Controllers
- 2015
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In: 2015 IEEE Power & Energy Society General Meeting. - : IEEE conference proceedings. - 9781467380409
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Conference paper (peer-reviewed)abstract
- The Icelandic power network has transmission constraintsthat often lead to inter-area oscillations. Although conventionalstabilization methods have been applied successfully inthe past, there is potential to exploit large industrial loads toenhance system stability during stringent operation conditions.This paper analyzes the performance of two damping controllers.The controllers can use both synchrophasor signals and localmeasurements as their inputs. Damping is achieved by loadmodulation generated by a phasor-based oscillation signal. Real-Time Software-in-the-Loop testing is performed using Opal-RT’s eMEGAsim Real-Time Simulator to derive hardware andcomputational requirements of a hardware prototype that willbe implemented in the future.
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| 7. |
- Li, Wei, et al.
(author)
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A PMU-Based State Estimator For Networks Containing VSC-HVDC links
- 2015
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In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING. - : IEEE. - 9781467380409
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Conference paper (peer-reviewed)abstract
- This paper presents a PMU-based state estimation algorithm that considers the presence of voltage source converter-based high voltage direct current (VSC-HVDC) links. The network model of a VSC-HVDC link with its control modes is developed and then combined with an AC model to accomplish a hybrid AC/DC network model. The measurement model in this algorithm considers the properties of PMU measurements, thus separating the network model with measurements. Additionally, DC link measurements are assumed to be sampled synchronously, time-stamped and reported at the same rate as PMU measurements. Then, by applying the nonlinear weighted least squares (WLS) algorithm, a PMU-based state estimator can solve for both AC and DC states simultaneously. To validate the algorithm, a simulation study for a 6-bus hybrid AC/DC test system is shown in this paper.
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| 8. |
- Martinez, Juan A., et al.
(author)
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EMTP Modeling of Hybrid HVDC Breakers
- 2015
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In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING. - : IEEE. - 9781467380409
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Conference paper (peer-reviewed)abstract
- HVDC meshed systems offer several advantages in front of their HVAC counterparts. However, the lack of fast, low-losses and reliable circuit breaker technology has postponed their implementation. A recently proposed hybrid breaker design can alter this situation. The new hybrid HVDC breaker offer a fast low-loss operation that can be easily adapted to high-power high-voltage DC applications. This paper presents the implementation and testing of an HVDC breaker model based on the new design. Simulation results are included to illustrate the operation of the new device when running as a fault-current limiter.
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| 9. |
- Rogersten, Robert, et al.
(author)
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Towards Consistent Model Exchange and Simulation of VSC-HVdc Controls for EMT Studies
- 2015
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In: 2015 IEEE POWER & ENERGY SOCIETY GENERAL MEETING. - : IEEE. - 9781467380409
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Conference paper (peer-reviewed)abstract
- Design of voltage source converters (VSC) for high-voltage direct current (HVdc) systems requires extensive simulation tools that are accurate and reliable. Before the installation of VSC-HVdc links, different simulation-based studies need to be performed by different parties and using different electromagnetic transient (EMT) simulation platforms. Previous work shows that even with a pedantic re-implementation of the models from the ground up, simulation results are still inconsistent between different EMT tools. This paper demonstrates a methodology, which provides a higher consistency between the simulation tools Simulink and PSCAD. This methodology is complex and exposes several limitations. Hence, the is a need for the adoption of a standardized equation-based modeling language for EMT model exchange.
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