Oscillating water column control and monitoring

Garrido, Izaskun; Garrido, Aitor J.; Lekube, Jon; Otaola, Erlantz; Carrascal, Edorta

doi:10.1109/oceans.2016.7761420

Cited by 10 publications

(5 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…To detect faults in generators used in WECs, active power monitoring and machine current signature analysis (MCSA) are also recommended [76]. These techniques are widely used for fault detection in electrical machines and can be adapted to be used in wave systems.…”

Section: Fault Diagnosis Methods For Wecsmentioning

confidence: 99%

See 1 more Smart Citation

Fault Diagnosis and Condition Monitoring in Wave Energy Converters: A Review

Mortazavizadeh,

Yazdanpanah,

Gaona

et al. 2023

Energies

View full text Add to dashboard Cite

The technology used in wave energy conversion systems is still in the early stages of research and development. There are a number of challenges associated with becoming a commercially viable source of renewable energy due to the high operating and maintenance (O&M) costs. A potential solution for increasing the availability of wave energy converters (WECs) and reducing operating and maintenance costs might involve the implementation of condition monitoring and fault-tolerant control systems, because in some reported WEC systems, 57% of total operational expenses go to maintenance activities. The use of condition monitoring techniques in wind energy systems has, for instance, shown the ability to detect failures months in advance, resulting in savings of 15–20% during the operational phase. This paper reviews the methods proposed (and some used) by researchers to monitor WEC’s condition and diagnose faults. Fault-tolerant control methods developed to improve the reliability of WECs and hence their commercial viability are also reviewed and discussed. In addition, a future research plan is provided here.

show abstract

Section: Fault Diagnosis Methods For Wecsmentioning

confidence: 99%

“…For a doubly-fed induction generator (DFIG) used in WECs in [76], a sensorless speed control has been implemented. Electrical component faults such as rotor eccentricity and torque oscillations were detected using reactive power monitoring.…”

Section: Fdir Units For Wecsmentioning

confidence: 99%

Fault Diagnosis and Condition Monitoring in Wave Energy Converters: A Review

Mortazavizadeh,

Yazdanpanah,

Gaona

et al. 2023

Energies

View full text Add to dashboard Cite

show abstract

“…In turn, current is controlled indirectly through voltage, as these signals are dependent each other. There exist different control approaches for this purpose, being the most used traditional PID-based schemes, robust (sliding-mode) schemes and MPC schemes [11][12][13][14][15][16][17][18][19][20][21][22][23]. In particular, when dealing with fusion devices where the available energy is limited, MPC is especially interesting due to its ability to ensure that both the control action and the solution error are minimal [9].…”

Section: Controller Descriptionmentioning

confidence: 99%

State-space Coil Modelling in Plasma Magnetic Confinement Devices

Garrido

González

et al. 2017

MATEC Web Conf.

Self Cite

View full text Add to dashboard Cite

Abstract. The need of robust and optimal control schemes is a key factor for the development of future fusion reactors. This paper has dealt with the state-space modelling of the Ultra-Low Iota Super Elongated Stellarator of the UPV/EHU, using a physical lumped parameter equivalent circuit approach. The model obtained has been validated by means of experimental output data showing an excellent matching with the real system. Besides, it has been designed a MPC scheme that has been successfully implemented both in simulation and experimentally using a real-time control platform.

show abstract

“…Downtime reduces energy outputs, resulting in reduced revenue and increased expenses for the stakeholders. Therefore, it is essential to implement cost‐effective operation and maintenance strategies to achieve a significant reduction in the cost of energy from offshore wind farms [3].…”

Section: Introductionmentioning

confidence: 99%

“…Although, the reliability of WECs has not been greatly studied, the knowledge obtained from off‐shore WTs is useful. For example, it is expected that OWCs include conditioning monitoring technology [3] for analysing the electrical signals of wave energy converters (WECs). However, only the standard/TS IEC TS 62600‐2 is dedicated specifically to the design of marine energy converters, which give design guidance for current energy converters, tidal energy converters, and WECs.…”

Section: Introductionmentioning

confidence: 99%

Robust control of a floating OWC WEC under open‐switch fault condition in one or in both VSCs

Ramirez

Blanco

Zarei

et al. 2020

IET Renewable Power Generation

View full text Add to dashboard Cite

The operation and maintenance activity of offshore wind turbines (WTs) increases the cost of the generated energy. Although significant efforts have been made to improve the reliability of the mechanical subassemblies, electrical and electronic subassemblies fail more frequently, causing undesirable downtimes and loss of revenues. Since offshore WTs and wave energy converters (WECs) share the electrical and electronic subassemblies, the reliability of WECs is expected to be affected by the same causes. This study presents a robust model predictive control for a WEC consisting of an oscillating water column (OWC) installed in a point absorber. The control system is capable of dealing with open switch faults in one or two insulatedgate bipolar transistors of the same arm in any of the voltage source converters (VSCs), or even in both VSCs at the same time. The system allows the OWC WEC to generate energy, although under certain restrictions, thereby reducing the urgency of repair and loss of revenues. The performance of the proposed approach is tested for several cases of open switch faults, experimentally in the laboratory using an OWC WEC emulator.

show abstract

Oscillating water column control and monitoring

Cited by 10 publications

References 32 publications

Fault Diagnosis and Condition Monitoring in Wave Energy Converters: A Review

Fault Diagnosis and Condition Monitoring in Wave Energy Converters: A Review

State-space Coil Modelling in Plasma Magnetic Confinement Devices

Robust control of a floating OWC WEC under open‐switch fault condition in one or in both VSCs

Contact Info

Product

Resources

About