Modeling of the DC Converter Equipment in the Carrier Band

LaForest, J. J.; Lindh, C. B.; Lasseter, R.H.; Reeve, J.

doi:10.1109/tpas.1982.317432

Cited by 11 publications

(8 citation statements)

References 1 publication

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“…According to reference [3][4][5][6][7], a noise model of converter valves is shown in Fig. 1 The converter arrangement with two 12-pulse valve groups in series per pole of UHVDC stations is shown in Fig.…”

Section: Noise Models Of Converter Valvesmentioning

confidence: 99%

“…PLC NOISE SOURCES Noise interference from UHVDC converter stations is generated by interference sources such as [4]: (1) the ignitions of the thyristors in the converter valves and open; (2) corona discharge; (3) sparking at highly stressed areas of insulators; (4) sparking at loose or imperfect contacts. There are two kind of noise from converter stations, i.e.…”

Section: Introductionmentioning

confidence: 99%

“…There are two kind of noise from converter stations, i.e. conducted noise from case (1) and background noise from case (2) to case (4). Converter conducted noise is strongly frequency dependent with the highest noise level present at the low end of the carrier spectrum.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Researches on the Noise Models of Valves and DC PLC Filters in UHVDC Transmission Project

Wen

Han

et al. 2008

2008 Joint International Conference on Power System Technology and IEEE Power India Conference

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Ultra-high voltage direct current (UHVDC) converter stations produce high levels of carrier frequency noise which can cause harmful interference to power-line carrier and open-wire carrier systems. The noise models of converter valves and converters arranged with two 12-pulse valve groups in series per pole are given. Calculation results of noise interference on dc pole line and electrode line for the Xiangjiaba -Shanghai UHVDC project (±800kV 6400MIW) based the noise models are presented and discussed. The PLC filter configuration for the UHVDC project meets the requirements of interference limits calculated by the models.

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Section: Noise Models Of Converter Valvesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Researches on the Noise Models of Valves and DC PLC Filters in UHVDC Transmission Project

Wen

Han

et al. 2008

2008 Joint International Conference on Power System Technology and IEEE Power India Conference

View full text Add to dashboard Cite

show abstract

“…Traditional equivalent circuit models are physical models that calculate related impedances based on specific dimensions, materials, structures and internal electrical connections. The main advantage is that each component in this model has clear physical meaning, which is convenient to guide optimization design while the disadvantage of this model is that the precision is often not good under high frequency [12]. Black-box model is a mathematical modeling method that obtains impedance or transmission characteristics with the help of testing methods, and then the wideband equivalent circuit could be established rational function approximation and network synthesis method.…”

Section: Introductionmentioning

confidence: 99%

Parameter Extraction and Wideband Modeling of $\pm $ 1100 kV Converter Valve

Cui

et al. 2017

IEEE Trans. Power Delivery

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As the key equipment of Ultra High Voltage Direct Current (UHVDC) transmission system, converter valve would bear different forms of overvoltage. Consequently, a wideband model for ±1100kV UHVDC converter valve is essential for converter system to make overvoltage analysis, insulation design and electromagnetic disturbance prediction. This paper proposed a wideband modeling method for of ±1100kV converter valve. Firstly, the physics-based wideband model for key component in converter valve module is built, of which the parameters could be obtained through genetic algorithm. Secondly, the parasitic capacitances are obtained through simplified boundary element method according to the given structure of ±1100kV converter valve. By combining wideband models for key components in converter valve module and the parasitic capacitances of valve tower, the integrated wideband model (IWM) for converter valve could be obtained. The systematic modelling method proposed in this paper could also be of reference value to the modelling of other large-scale complex high voltage power electronic equipment. Finally, the experiments for converter valve module and converter tower are carried out, and the corresponding results justified the effectiveness and correctness of the proposed wideband model for converter valve tower.

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“…The actual coupling mechanism is quite complicated since distributed capacitance, Fig. 1 It is mentioned in [3,4] that the simple model of a converter transformer could be , in addition with an ideal transformer, a simple leakage reactance or a combination leakage reactance with shunt earth capacitors, shown in Fig. 2.…”

Section: Introductionmentioning

confidence: 99%

Study on models of the HVDC converter transformer for calculation of high-frequency interference

Hao

2008

2008 IEEE/PES Transmission and Distribution Conference and Exposition

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Two models of converter transformers for calculation of high-frequency (HF) interference in the converter station are proposed. Based on the analysis of the traditional simple model, a modified model is brought out to simulate the high-frequency and relative low-frequency performances of converter transformer at the band 1-500 kHz, considering the capacitance between windings and the earth capacitance of lowvoltage winding, and above 20kHz a simplified pure capacitance model can be used to replace the modified model regardless of the leakage inductance. Besides, a method to determine the parameters of the two models is presented. Then the models of converter transformers are applied to GUI-GUANG project, and the result shows that the modified model and its simplified pure capacitance one can meet the requirement of calculation of highfrequency interference.

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Modeling of the DC Converter Equipment in the Carrier Band

Cited by 11 publications

References 1 publication

Researches on the Noise Models of Valves and DC PLC Filters in UHVDC Transmission Project

Researches on the Noise Models of Valves and DC PLC Filters in UHVDC Transmission Project

Parameter Extraction and Wideband Modeling of $\pm $ 1100 kV Converter Valve

Study on models of the HVDC converter transformer for calculation of high-frequency interference

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