TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release

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Public data, results, and final report from a study on methods to design and optimize an over-voltage protection (OVP) system for a floating, two-body Wave Power System (WPS). The work has been performed by assessing the conditions under which hydrodynamically induced transient over-voltage (OV) events occur, identifying means to detect these events, formulating and assessing solutions to mitigate their impact and protect embedded equipment, and performing a comparative analysis against the baseline to evaluate the impact on: 1. Power Performance (percent improvement in annual mean electrical power (MEP) at PacWave-South); 2. Capital expense (capital cost of OVP, increase over the base system); and 3. Reliability (mean time to failure (MTTF) for the improved OVP system).

To perform this comparative analysis, the proposed OVP system solution was compared against a baseline, an industrial standard design for emergency fault protection in wind turbines, which included a dynamic braking chopper (DBC) for DC link protection and a standard 3-phase remote operated circuit breaker for generator disconnect.

Improvement in real time DC link voltage management is necessary to minimize OV events and reduce risk to components connected to the DC link, specifically electrolytic capacitors. In practice, DC link voltage regulation between multiple inverter power sources, the generator and BESS power converters, can be achieved with advanced high-speed real-time control loops, such as PROFINET, an industrial standard for real-time communications. Modeling showed that built-in approaches to OVP, namely the DBC and BESS, can raise the trip threshold versus baseline from 7.6 RPM to 8.5 RPM, greatly increasing MEP. The modeling effort found two additional viable approaches to OVP, flux weakening and the use of a solid-state or other fast-acting disconnect switch, that further improve annual MEP and MTTF to completely fulfill the original project goals.

This project is part of the TEAMER RFTS 13 (request for technical support) program.

Citation Formats

TY - DATA AB - Public data, results, and final report from a study on methods to design and optimize an over-voltage protection (OVP) system for a floating, two-body Wave Power System (WPS). The work has been performed by assessing the conditions under which hydrodynamically induced transient over-voltage (OV) events occur, identifying means to detect these events, formulating and assessing solutions to mitigate their impact and protect embedded equipment, and performing a comparative analysis against the baseline to evaluate the impact on: 1. Power Performance (percent improvement in annual mean electrical power (MEP) at PacWave-South); 2. Capital expense (capital cost of OVP, increase over the base system); and 3. Reliability (mean time to failure (MTTF) for the improved OVP system). To perform this comparative analysis, the proposed OVP system solution was compared against a baseline, an industrial standard design for emergency fault protection in wind turbines, which included a dynamic braking chopper (DBC) for DC link protection and a standard 3-phase remote operated circuit breaker for generator disconnect. Improvement in real time DC link voltage management is necessary to minimize OV events and reduce risk to components connected to the DC link, specifically electrolytic capacitors. In practice, DC link voltage regulation between multiple inverter power sources, the generator and BESS power converters, can be achieved with advanced high-speed real-time control loops, such as PROFINET, an industrial standard for real-time communications. Modeling showed that built-in approaches to OVP, namely the DBC and BESS, can raise the trip threshold versus baseline from 7.6 RPM to 8.5 RPM, greatly increasing MEP. The modeling effort found two additional viable approaches to OVP, flux weakening and the use of a solid-state or other fast-acting disconnect switch, that further improve annual MEP and MTTF to completely fulfill the original project goals. This project is part of the TEAMER RFTS 13 (request for technical support) program. AU - Swindler, Steve A2 - Crowell, Steve A3 - Binning, Gabriel A4 - Kofman, Eli DB - Marine and Hydrokinetic Data Repository DP - Open EI | National Laboratory of the Rockies DO - KW - MHK KW - Marine KW - Hydrokinetic KW - energy KW - power KW - over-voltage KW - power system model KW - over-voltage protection KW - OVP KW - two-body Wave Power System KW - Wave Power System KW - WPS KW - preformance KW - capital expense KW - code KW - Matlab KW - Excel KW - TEAMER KW - RFTS13 LA - English DA - 2026/05/01 PY - 2026 PB - Cardinal Engineering T1 - TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release UR - https://mhkdr.openei.org/submissions/704 ER -
Export Citation to RIS
Swindler, Steve, et al. TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release. Cardinal Engineering, 1 May, 2026, Marine and Hydrokinetic Data Repository. https://mhkdr.openei.org/submissions/704.
Swindler, S., Crowell, S., Binning, G., & Kofman, E. (2026). TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release. [Data set]. Marine and Hydrokinetic Data Repository. Cardinal Engineering. https://mhkdr.openei.org/submissions/704
Swindler, Steve, Steve Crowell, Gabriel Binning, and Eli Kofman. TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release. Cardinal Engineering, May, 1, 2026. Distributed by Marine and Hydrokinetic Data Repository. https://mhkdr.openei.org/submissions/704
@misc{MHKDR_Dataset_704, title = {TEAMER: Over-voltage Protection of Direct Drive Wave Power System (WPS) Electrical Components Public Release}, author = {Swindler, Steve and Crowell, Steve and Binning, Gabriel and Kofman, Eli}, abstractNote = {Public data, results, and final report from a study on methods to design and optimize an over-voltage protection (OVP) system for a floating, two-body Wave Power System (WPS). The work has been performed by assessing the conditions under which hydrodynamically induced transient over-voltage (OV) events occur, identifying means to detect these events, formulating and assessing solutions to mitigate their impact and protect embedded equipment, and performing a comparative analysis against the baseline to evaluate the impact on: 1. Power Performance (percent improvement in annual mean electrical power (MEP) at PacWave-South); 2. Capital expense (capital cost of OVP, increase over the base system); and 3. Reliability (mean time to failure (MTTF) for the improved OVP system).

To perform this comparative analysis, the proposed OVP system solution was compared against a baseline, an industrial standard design for emergency fault protection in wind turbines, which included a dynamic braking chopper (DBC) for DC link protection and a standard 3-phase remote operated circuit breaker for generator disconnect.

Improvement in real time DC link voltage management is necessary to minimize OV events and reduce risk to components connected to the DC link, specifically electrolytic capacitors. In practice, DC link voltage regulation between multiple inverter power sources, the generator and BESS power converters, can be achieved with advanced high-speed real-time control loops, such as PROFINET, an industrial standard for real-time communications. Modeling showed that built-in approaches to OVP, namely the DBC and BESS, can raise the trip threshold versus baseline from 7.6 RPM to 8.5 RPM, greatly increasing MEP. The modeling effort found two additional viable approaches to OVP, flux weakening and the use of a solid-state or other fast-acting disconnect switch, that further improve annual MEP and MTTF to completely fulfill the original project goals.

This project is part of the TEAMER RFTS 13 (request for technical support) program.}, url = {https://mhkdr.openei.org/submissions/704}, year = {2026}, howpublished = {Marine and Hydrokinetic Data Repository, Cardinal Engineering, https://mhkdr.openei.org/submissions/704}, note = {Accessed: 2026-06-06} }

Details

Data from May 1, 2026

Last updated May 26, 2026

Submitted May 15, 2026

Organization

Cardinal Engineering

Contact

Douglas Algera

202.684.2814

Authors

Steve Swindler

Cardinal Engineering

Steve Crowell

Cardinal Engineering

Gabriel Binning

Cardinal Engineering

Eli Kofman

Cardinal Engineering

DOE Project Details

Project Name Testing Expertise and Access for Marine Energy Research

Project Lead Lauren Ruedy

Project Number EE0008895

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