Multifunctional Megawatt-Scale Medium Voltage DC Test Bed Based on Modular Multilevel Converter Technology

Steurer, M.; Schoder, Karl; Faruque, Omar; Soto, Dionne; Bosworth, Matthew; Sloderbeck, M.; Bogdan, F.; Hauer, J.F.; Winkelnkemper, M.; Schwager, Lukas; Błaszczyk, Paweł

doi:10.1109/tte.2016.2582561

Cited by 74 publications

(38 citation statements)

References 14 publications

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“…For MVdc applications with a much lower number of cells per branch, this is not considered as a large concern, especially if the branch or phase-leg modulation is performed at an intermediate level, between the cell controller and the central controller. To support this discussion, a decentralized modulation with a closed-loop control of the branch energies has been implemented in [30]. No large penalty from the time delays on the converter dynamics is reported.…”

Section: Discussionmentioning

confidence: 98%

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Modular Multilevel Converter Control Methods Performance Benchmark for Medium Voltage Applications

Christe

Dujić

2019

IEEE Trans. Power Electron.

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Abstract-Modular multilevel converters are increasingly being considered or used for various medium voltage applications. Multiple control methods have been proposed for the control of the direct to three-phase modular multilevel converter. They differ one from another in the way the capacitor voltage ripples are handled, i.e. either neglected, estimated, reconstructed by filtering or measured. This has implications on the performance level that can be obtained. This paper provides insights on the advantages and drawbacks of each control method, in inverter and rectifier mode, with a fair and thorough assessment supported by extensive simulations, with converter ratings that are realistic for medium voltage applications. Finally, this works highlights the impact of the higher dynamics for medium voltage dc applications compared to high voltage dc ones on the choice of the control method.

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Section: Discussionmentioning

confidence: 98%

“…Applications considering an MMC as a rectifier range from versatile high performance dc source [30] to sending port of a dc transmission. In that operating mode, the DVC is added.…”

Section: E Rectifier Modementioning

confidence: 99%

Modular Multilevel Converter Control Methods Performance Benchmark for Medium Voltage Applications

Christe

Dujić

2019

IEEE Trans. Power Electron.

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“…The same testing approach can be used for large-scale power electronics integration studies [53,54]. Figure 9 can be constructed by integrating PHIL technologies with a lab testing approach [33,34].…”

Section: Introductionmentioning

confidence: 99%

Advanced Laboratory Testing Methods Using Real-Time Simulation and Hardware-in-the-Loop Techniques: A Survey of Smart Grid International Research Facility Network Activities

et al. 2020

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The integration of smart grid technologies in interconnected power system networks presents multiple challenges for the power industry and the scientific community. To address these challenges, researchers are creating new methods for the validation of: control, interoperability, reliability of Internet of Things systems, distributed energy resources, modern power equipment for applications covering power system stability, operation, control, and cybersecurity. Novel methods for laboratory testing of electrical power systems incorporate novel simulation techniques spanning real-time simulation, Power Hardware-in-the-Loop, Controller Hardware-in-the-Loop, Power System-in-the-Loop, and co-simulation technologies. These methods directly support the acceleration of electrical systems and power electronics component research by validating technological solutions in high-fidelity environments. In this paper, members of the Survey of Smart Grid International Research Facility Network task on Advanced Laboratory Testing Methods present a review of methods, test procedures, studies, and experiences employing advanced laboratory techniques for validation of range of research and development prototypes and novel power system solutions.

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“…single and threephase devices, different nameplate ratings, grid functions, and operating capabilities), control schemes, and grid conditions. CHIL has been demonstrated in a wide variety of DER utilized grid topologies, including Medium Voltage DC equipment [21], microgrids [22,23], and smart grids [24] and is widely accepted as a cost-effective method to determine the behavior of power systems under a variety of grid operating conditions.…”

Section: Introductionmentioning

confidence: 99%

Design and Evaluation of SunSpec-Compliant Smart Grid Controller with an Automated Hardware-in-the-Loop Testbed

Johnson

Ablinger

Bründlinger

et al. 2017

Technol Econ Smart Grids Sustain Energy

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With increasing penetrations of inverter-based, renewable energy resources on electrical grids around the world, new distributed energy resource (DER) interconnection and interoperability requirements have been introduced to address emerging power system operator needs. The inverter-based power conversion systems are capable of communicating with grid operators, providing voltage and frequency support, and supporting the grid during faults. However, DER vendors are under pressure to quickly and reliably update the interoperability and electrical capabilities of their equipment for different jurisdictions with the rapidly changing landscape of disparate codes and standards. The necessary power hardware required for testing Advanced Microelectronics and Radiation Effects, Sandia National Laboratories, Albuquerque, NM, USA power systems under the wide variety of operational conditions may be untenable for many organizations. Therefore, we introduce an approach for the concurrent development of controls and application software through a controller hardware-in-the-loop (CHIL) testbed integrated with an automated testing platform that allows for the cost-effective, flexible evaluation of advanced grid support functions without the need for large and expensive power hardware. We show this CHIL capability through the demonstration and automation of interconnection tests with a 34.5 kW Austrian Institute of Technology (AIT) smart grid converter (SGC) connected to a Typhoon HIL system. We have demonstrated the CHIL system with regards to connect/disconnect, active power curtailment, fixed power factor, reactive power control, volt-var, and frequency-watt advanced grid functionality tests. For all tests, the automated CHIL testing protocols for advanced functions were sufficient to demonstrate and evaluate the grid support behavior of the equipment under test.

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Multifunctional Megawatt-Scale Medium Voltage DC Test Bed Based on Modular Multilevel Converter Technology

Cited by 74 publications

References 14 publications

Modular Multilevel Converter Control Methods Performance Benchmark for Medium Voltage Applications

Modular Multilevel Converter Control Methods Performance Benchmark for Medium Voltage Applications

Advanced Laboratory Testing Methods Using Real-Time Simulation and Hardware-in-the-Loop Techniques: A Survey of Smart Grid International Research Facility Network Activities

Design and Evaluation of SunSpec-Compliant Smart Grid Controller with an Automated Hardware-in-the-Loop Testbed

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