Analysis of Switching Transients during Energization in Large Offshore Wind Farms

Liu, Gang; Guo, Yaxun; Xin, Yanli; You, Lei; Jiang, Xiujuan; Zheng, Ming; Tang, Wenhu

doi:10.3390/en11020470

Cited by 11 publications

(3 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this paper, the unified magnetic equivalent circuit (UMEC) model is adopted for transformers, which can represent the phase coupling of the transformer in PSCAD. At the same time, capacitors are connected in parallel between the high-voltage side, low-voltage side, and high and low voltage of the transformer to simulate the HF characteristics of the transformer [28].…”

Section: Transformer Modelmentioning

confidence: 99%

See 1 more Smart Citation

Study on Transient Overvoltage of Offshore Wind Farm Considering Different Electrical Characteristics of Vacuum Circuit Breaker

Zhou

Guo

Jiang

et al. 2019

JMSE

Self Cite

View full text Add to dashboard Cite

For the study of transient overvoltage (TOV) in an offshore wind farm (OWF) collector system caused by switching off vacuum circuit breakers (VCBs), a simplified experimental platform of OWF medium-voltage (MV) cable collector system was established in this paper to conduct switching operation tests of VCB and obtain the characteristic parameters for VCB, especially dielectric strength parameters; also, the effectiveness of the VCB reignition model was verified. Then, PSCAD/EMTDC was used to construct the MV collector system of the OWF, and the effects of normal switching and fault switching on TOV amplitude, steepness, and the total number of reignition of the VCB were studied, respectively, with the experimental parameters and traditional parameters of dielectric strength of the VCB. The simulation results show that when the VCB is at the tower bottom, the overvoltage amplitude generated by the normal switching is the largest, which is 1.83 p.u., and the overvoltage steepness of the fault switching is the largest, up to 142 kV/μs. The overvoltage amplitude and steepness caused by switching off VCB at the tower bottom faultily with traditional parameters are about 2 and 1.5 times of the experimental parameters under the same operating condition.

show abstract

Section: Transformer Modelmentioning

confidence: 99%

“…The frequency dependent (phase) model in PSCAD is used to model submarine cables. The three-core cable structure is used in the simulation, and the specific setting parameters are shown in [28].…”

Section: Submarine Cable Modelmentioning

confidence: 99%

Study on Transient Overvoltage of Offshore Wind Farm Considering Different Electrical Characteristics of Vacuum Circuit Breaker

Zhou

Guo

Jiang

et al. 2019

JMSE

Self Cite

View full text Add to dashboard Cite

show abstract

“…The design parameters of the submarine cable considered in this research are given in Table 1. They are based on a 630 mm 2 , 64/110 kV single-core XLPE insulated cable, which is often used in Chinese OWF export systems [10,11]. Only one phase of the export circuit is modeled.…”

Section: J-tube and Cable Parametersmentioning

confidence: 99%

Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes

et al. 2018

Self Cite

View full text Add to dashboard Cite

The section of submarine cable that is installed in enclosed J-tubes represents a possible thermal limiting point along the export circuits of offshore wind farms (OWFs). To obtain higher continuous thermal ratings for J-tube systems, a ventilated design, realized by allowing for the flow of natural wind into the J-tube through vents, is considered in this paper. To evaluate the performance of this forced-ventilation design, a coupled three-dimensional (3D) numerical model is constructed using the computational fluid dynamics (CFD) technique. The CFD method is first successfully tested through comparisons with existing methods for enclosed J-tubes. Then, the cable rating for the ventilated design is determined using the CFD model and compared with the rating for the enclosed case. The results show that the cooling effect from forced ventilation is obvious, and the cable rating could be increased by up to 27.5% for a wind speed of 10 m/s. This improvement in rating is especially significant for OWFs where the export circuit output is limited by the cable rating in enclosed J-tubes.

show abstract

Sensitivity analysis of reignition overvoltage for vacuum circuit breaker in offshore wind farm using experiment-based modeling

Xin

Tang

Zhou

et al. 2019

Electric Power Systems Research

View full text Add to dashboard Cite

Analysis of Switching Transients during Energization in Large Offshore Wind Farms

Cited by 11 publications

References 17 publications

Study on Transient Overvoltage of Offshore Wind Farm Considering Different Electrical Characteristics of Vacuum Circuit Breaker

Study on Transient Overvoltage of Offshore Wind Farm Considering Different Electrical Characteristics of Vacuum Circuit Breaker

Thermal Rating of Offshore Wind Farm Cables Installed in Ventilated J-Tubes

Sensitivity analysis of reignition overvoltage for vacuum circuit breaker in offshore wind farm using experiment-based modeling

Contact Info

Product

Resources

About