• Complex
  • Title
  • Author
  • Keyword
  • Abstract
  • Scholars
Search
High Impact Results & Cited Count Trend for Year Keyword Cloud and Partner Relationship

Query:

学者姓名:吴翊

Refining:

Co-Author

Submit Unfold

Language

Submit

Clean All

Export Sort by:
Default
  • Default
  • Title
  • Year
  • WOS Cited Count
  • Impact factor
  • Ascending
  • Descending
< Page ,Total 4 >
Simulation and experimental study on the degradation of the greenhouse gas SF6 by thermal plasma Scopus SCIE
期刊论文 | 2023 , 216 | Environmental Research
SCOPUS Cited Count: 2
Abstract&Keyword Cite

Abstract :

SF6 gas is widely used on many occasions especially in the power equipment, but it has been restricted since Kyoto Protocol as the strongest greenhouse gas. To reduce the SF6 emission, several methods are now used such the recycling &amp; purification and the SF6 degradation. Considering the huge market of SF6 and the recent demand in the field of power equipment, it is necessary to explore new ways to thoroughly destroy SF6. This work brought out the idea to degrade retired SF6 by thermal plasma. A simplified kinetic model was established to predict the feasibility of this idea as well as the degradation products of SF6, and then the prototype of SF6 degradation by thermal plasma was built and tested. In thermal plasma, SF6 gradually decomposed into atoms, and then H2 was added to capture the released F atoms to generate HF and also prevent the association reactions of SF6. In order to achieve the desired degradation effect, the reaction temperature and the mixing ratio of H2 should be sufficiently high. However, excessive H2 could generate the H2S, and excessive discharge power could decrease the energy yield. When the flow rate of SF6/H2 was set as 8/30 L/min and the discharge current was set as 100A, the destruction removal efficiency (DRE) of SF6 was 99.0% and the energy yield was 206 g/kWh. This work also discusses how to further treat the by-products such as HF and S from this prototype effectively. © 2022 Elsevier Inc.

Keyword :

Degradation; Destruction removal efficiency; Energy yield; H2; SF6; Thermal plasma

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Sun, H. , Long, H. , Wu, Y. et al. Simulation and experimental study on the degradation of the greenhouse gas SF6 by thermal plasma [J]. | Environmental Research , 2023 , 216 .
MLA Sun, H. et al. "Simulation and experimental study on the degradation of the greenhouse gas SF6 by thermal plasma" . | Environmental Research 216 (2023) .
APA Sun, H. , Long, H. , Wu, Y. , Guo, Y. , Rong, M. . Simulation and experimental study on the degradation of the greenhouse gas SF6 by thermal plasma . | Environmental Research , 2023 , 216 .
Export to NoteExpress RIS BibTex
Development of a Hybrid Fault Current Limiter Using Liquid Metal for Large Capacity MVdc Power Systems EI SCIE Scopus
期刊论文 | 2022 , 69 (5) , 5050-5059 | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
SCOPUS Cited Count: 8
Abstract&Keyword Cite

Abstract :

A hybrid fault current limiter (FCL) for medium-voltage direct current power systems is introduced in this article. It achieves low operation loss and high current limiting resistance through the combination of a fast mechanical switch, a magnetic induction module, and a number of liquid metal units (LMUs). First, the parameters of the magnetic induction module are designed to achieve a desired fault current commutation process. Then, the working principle of LMU is introduced, and its resistance properties corresponding to the liquid metal arc are studied in detail. Equations are deduced to model the V-I characteristic of LMU. Thus, the current limiting performance of the topology can be simulated. To verify the feasibility of the FCL, a 5-kV/5-kA prototype is developed and laboratory tests are implemented. Comparisons with other FCLs are also conducted to demonstrate the advantages of the proposed one. It is concluded that the prototype provides the basis for further commercial product development.

Keyword :

Capacitors Circuit faults Current limiting fault current limiter (FCL) Fault currents Frequency modulation Limiting liquid metal (LM) medium-voltage direct current (MVdc) power system Prototypes Windings

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wang, Beibei , Niu, Chunping , He, Hailong et al. Development of a Hybrid Fault Current Limiter Using Liquid Metal for Large Capacity MVdc Power Systems [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (5) : 5050-5059 .
MLA Wang, Beibei et al. "Development of a Hybrid Fault Current Limiter Using Liquid Metal for Large Capacity MVdc Power Systems" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 69 . 5 (2022) : 5050-5059 .
APA Wang, Beibei , Niu, Chunping , He, Hailong , Wu, Yi , Rong, Mingzhe , Wang, Longlong et al. Development of a Hybrid Fault Current Limiter Using Liquid Metal for Large Capacity MVdc Power Systems . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (5) , 5050-5059 .
Export to NoteExpress RIS BibTex
Hybrid MVDC Circuit Breaker Based on Enhanced Arc Voltage of Vacuum Interrupter EI SCIE Scopus
期刊论文 | 2022 , 69 (5) , 4776-4785 | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
WoS CC Cited Count: 1 SCOPUS Cited Count: 13
Abstract&Keyword Cite

Abstract :

The hybrid dc circuit breaker (HDCCB) is one of the most promising solutions for the dc interruption. But the power electronics-based load commutation switch (LCS) in the main current path causes the high on-state loss and cost, which inhibits the application of the HDCCB. In this paper, a novel hybrid dc circuit breaker is proposed, in which the vacuum interrupter with the external transverse magnetic field (ETMF) is designed to improve the arc voltage and thus enhance the current commutation to power electronics. The ETMF-based vacuum interrupter achieves the fast current commutation instead of the LCS, which realizes the low on-state loss and cost while preserving the short commutation and interruption time. The arc voltage characteristic with ETMF is analyzed, and the influence of the different factors on the commutation time and di/dt before current zero are investigated in detail. Based on the calculation results, a 10 kV dc breaker prototype based on the proposed topology is developed with the breaking current of 15.5 kA. Finally, the application of the proposed scheme in HVdc grids is discussed.

Keyword :

Capacitors Circuit breakers External transverse magnetic field (ETMF) Fault currents hybrid dc circuit breaker (HDCCB) Interrupters Magnetic fields MVDC Prototypes Topology vacuum interrupter

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wu, Yifei , Xiao, Yu , Wu, Yi et al. Hybrid MVDC Circuit Breaker Based on Enhanced Arc Voltage of Vacuum Interrupter [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (5) : 4776-4785 .
MLA Wu, Yifei et al. "Hybrid MVDC Circuit Breaker Based on Enhanced Arc Voltage of Vacuum Interrupter" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 69 . 5 (2022) : 4776-4785 .
APA Wu, Yifei , Xiao, Yu , Wu, Yi , Rong, Mingzhe , Yang, Fei . Hybrid MVDC Circuit Breaker Based on Enhanced Arc Voltage of Vacuum Interrupter . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (5) , 4776-4785 .
Export to NoteExpress RIS BibTex
Technical Assessment on Self-Charging Mechanical HVDC Circuit Breaker EI SCIE Scopus
期刊论文 | 2022 , 69 (4) , 3622-3630 | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
SCOPUS Cited Count: 13
Abstract&Keyword Cite

Abstract :

High-voltage DC (HVDC) circuit breaker is the necessary equipment for multiterminal HVDC grids, which is a prospective power transmission method in the future. Therefore, the research about HVDC interruption ushered in an explosive development in recent years. The mechanical DC circuit breaker based on the precharged capacitor for current commutation and interruption is considered to be one of the most promising HVDC interruption solution. However, the commutation capacitor requires a complicated precharging circuit, especially in high-voltage applications, which brings a great challenge to the promotion of mechanical interruption solution. In this article, a novel self-charging mechanical HVDC circuit breaker is proposed. It utilizes the induced voltage generated by part of current limiting reactor to adaptively charge the commutation capacitor under different fault current conditions without extra auxiliary charging circuit. By investigating the influence of capacitance and inductance on the charging time and current commutation process, the optimized parameters are determined. Then, the breaking performance of proposed HVDC breaker under different rising rates of fault current is evaluated in a two-terminal HVDC system. Finally, a low-power prototype is developed to verify the feasibility of the proposed topology and an improved scheme for rated current breaking is discussed.

Keyword :

Capacitors Circuit breakers Circuit faults Current commutation Discharges (electric) Fault currents HVDC transmission Inductors mechanical high-voltage DC (HVDC) circuit breaker parameter optimization self-charging

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wu, Yifei , Peng, Sunhonghao , Wu, Yi et al. Technical Assessment on Self-Charging Mechanical HVDC Circuit Breaker [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (4) : 3622-3630 .
MLA Wu, Yifei et al. "Technical Assessment on Self-Charging Mechanical HVDC Circuit Breaker" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 69 . 4 (2022) : 3622-3630 .
APA Wu, Yifei , Peng, Sunhonghao , Wu, Yi , Rong, Mingzhe , Yang, Fei . Technical Assessment on Self-Charging Mechanical HVDC Circuit Breaker . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2022 , 69 (4) , 3622-3630 .
Export to NoteExpress RIS BibTex
A Novel DC Circuit Breaker With Counter-Current Injection and IGCT Combined EI SCIE Scopus
期刊论文 | 2022 , 37 (3) , 3451-3461 | IEEE TRANSACTIONS ON POWER ELECTRONICS
WoS CC Cited Count: 2 SCOPUS Cited Count: 14
Abstract&Keyword Cite

Abstract :

The fast fault clearance in medium-voltage direct current (MVdc) grids requires the dc circuit breakers (DCCBs) with high breaking capability and low cost. The traditional hybrid DCCB realizes large current interruption relying on several insulated gate bipolar transistors in parallel, which results in difficulty of cost reduction. In this article, a novel DCCB with counter-current injection and integrated gate-commutated thyristor (IGCT) combined is proposed and analyzed. By combining forced commutation and IGCT, the large current breaking capability can be realized and the low cost is guaranteed. The simulation of the proposed DCCB is performed to evaluate the fault current breaking capability and influence of circuit parameters consisting of stray parameters and precharged capacitors on current commutation processes. Furthermore, a prototype of the 10-kV MVdc circuit breaker with 20-kA breaking capability is developed, and then the fault current breaking test is carried out to verify the validity of the proposed topology which can cut off current within 2.5 ms.

Keyword :

Capacitors Circuit breakers Circuit faults Commutation capability Costs current commutation Fault currents integrated gate-commutated thyristors (IGCTs) medium-voltage direct current (MVdc) circuit breaker Topology Voltage

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Zhuang, Weibin , Rong, Mingzhe , Wu, Yifei et al. A Novel DC Circuit Breaker With Counter-Current Injection and IGCT Combined [J]. | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2022 , 37 (3) : 3451-3461 .
MLA Zhuang, Weibin et al. "A Novel DC Circuit Breaker With Counter-Current Injection and IGCT Combined" . | IEEE TRANSACTIONS ON POWER ELECTRONICS 37 . 3 (2022) : 3451-3461 .
APA Zhuang, Weibin , Rong, Mingzhe , Wu, Yifei , Wu, Yi , Xiao, Yu , Wu, Xin et al. A Novel DC Circuit Breaker With Counter-Current Injection and IGCT Combined . | IEEE TRANSACTIONS ON POWER ELECTRONICS , 2022 , 37 (3) , 3451-3461 .
Export to NoteExpress RIS BibTex
High-Capacity MVDC Interruption Based on IGCT Current Sharing Integrated With Freewheeling EI SCIE
期刊论文 | 2021 , 68 (11) , 10982-10991 | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS
Abstract&Keyword Cite

Abstract :

Medium-voltage dc (MVdc) distribution systems have the advantages of high power density, low line loss and fast system response. However, the high rise rate and large peak value of short circuit current make the fault current interruption a critical problem in MVdc systems. To solve this problem, a novel circuit breaker scheme based on integrated gate-commutated thyristor (IGCTs) current sharing integrated with freewheeling is proposed in this article, which not only can ensure a high breaking capacity and short interruption time in the full current range, but also have superior vacuum interrupter recovery performance and high breaking reliability. The analysis of key factors, including stray parameters, inductance-capacitance (LC) parameters and arcing time, on the current commutation characteristics is presented, and the optimal design principle of the circuit breaker parameters is obtained. Finally, the proposed MVdc circuit breaker is verified with a 64.2 kA/10 kV fault current interruption experiment.

Keyword :

DC circuit breakers (DCCB) integrated gate-commutated thyristor (IGCT) large capacity interruption stray parameter optimization

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Xiao, Yu , Wu, Yifei , Wu, Yi et al. High-Capacity MVDC Interruption Based on IGCT Current Sharing Integrated With Freewheeling [J]. | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2021 , 68 (11) : 10982-10991 .
MLA Xiao, Yu et al. "High-Capacity MVDC Interruption Based on IGCT Current Sharing Integrated With Freewheeling" . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS 68 . 11 (2021) : 10982-10991 .
APA Xiao, Yu , Wu, Yifei , Wu, Yi , Rong, Mingzhe , Yang, Fei , Gao, Chong et al. High-Capacity MVDC Interruption Based on IGCT Current Sharing Integrated With Freewheeling . | IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS , 2021 , 68 (11) , 10982-10991 .
Export to NoteExpress RIS BibTex
A Novel Liquid Metal Fault Current Limiter Based on Active Trigger Method EI Scopus SCIE
期刊论文 | 2021 , 36 (6) , 3619-3628 | IEEE Transactions on Power Delivery
SCOPUS Cited Count: 9
Abstract&Keyword Cite

Abstract :

A novel liquid metal fault current limiter (LMFCL) is introduced to enhance the fault responding performance while increasing the rated current-carrying capacity. The proposed limiter utilizes an active trigger method to ignite the arc, achieving a much shorter pre-arcing time than the previous one, namely the self-pinch LMFCL. Firstly, the arcing phenomenon of liquid metal under a continuous current is studied, which results in a restriction of the rated current for a limiter. Then, the structure and working principle of the active triggered LMFCL are presen- ted. Experimental investigations are conducted to learn the whole arcing process. Furthermore, the current limiting performances based on the novel and conventional methods are compared, and the critical conditions of arc ignition under different parameters are studied. In addition, a continuous current-carrying test is implemented on an improved limiter. The results show that the proposed method is able to shorten the fault responding time significantly, while it allows the LMFCL to carry a considerable rated current. IEEE

Keyword :

Active trigger; arc ignition; fault current limiters (FCLs); Fault currents; Ignition; Limiting; liquid metal (LM); Liquids; Metals; self-pinch effect; Steady-state; Surface treatment

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Niu, C. , Wang, B. , He, H. et al. A Novel Liquid Metal Fault Current Limiter Based on Active Trigger Method [J]. | IEEE Transactions on Power Delivery , 2021 , 36 (6) : 3619-3628 .
MLA Niu, C. et al. "A Novel Liquid Metal Fault Current Limiter Based on Active Trigger Method" . | IEEE Transactions on Power Delivery 36 . 6 (2021) : 3619-3628 .
APA Niu, C. , Wang, B. , He, H. , Wu, Y. , Rong, M. , Li, J. et al. A Novel Liquid Metal Fault Current Limiter Based on Active Trigger Method . | IEEE Transactions on Power Delivery , 2021 , 36 (6) , 3619-3628 .
Export to NoteExpress RIS BibTex
The influence of back-breakdown on the CO2 conversion in gliding arc plasma: based on experiments of different materials and improved structures EI SCIE
期刊论文 | 2021 , 54 (49) | JOURNAL OF PHYSICS D-APPLIED PHYSICS
Abstract&Keyword Cite

Abstract :

In this work, we studied the influence of electrode materials and airflow area on CO2 conversion in gliding arc plasma. Herein, the correlation between breakdown events, including back-breakdown and re-ignition, and conversion rate was discussed. The experimental results show that the motion characteristics of the gliding arc when using different electrode materials affect the CO2 conversion, especially the energy efficiency. Thereinto, the graphite material has the best performance. The correlation coefficient between breakdown events and the conversion rate reaches 0.85 at 4 l min(-1). Furthermore, the experiment of changing the airflow area verifies this value. Changing the airflow area increases the proportion of gas passing through the gliding arc, which can improve the CO2 conversion, especially at low flow rate. When the flow rate is 3 l min(-1), the conversion rate reaches 11.1%, which is much higher than the conversion rate before improvement.

Keyword :

breakdown events CO2 conversion gliding arc graphite motion characteristics

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Sun, Hao , Chen, Zhuolei , Chen, Jiefu et al. The influence of back-breakdown on the CO2 conversion in gliding arc plasma: based on experiments of different materials and improved structures [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2021 , 54 (49) .
MLA Sun, Hao et al. "The influence of back-breakdown on the CO2 conversion in gliding arc plasma: based on experiments of different materials and improved structures" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 54 . 49 (2021) .
APA Sun, Hao , Chen, Zhuolei , Chen, Jiefu , Long, Hu , Wu, Yi , Zhou, Wenliang . The influence of back-breakdown on the CO2 conversion in gliding arc plasma: based on experiments of different materials and improved structures . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2021 , 54 (49) .
Export to NoteExpress RIS BibTex
A Load-Dependent Model of Triboelectric Nanogenerators for Surface Roughness Sensing EI SCIE
期刊论文 | 2021 , 21 (18) , 20220-20228 | IEEE SENSORS JOURNAL
WoS CC Cited Count: 2
Abstract&Keyword Cite

Abstract :

The triboelectric nanogenerator (TENG) has the advantages of low cost, high efficiency, flexibility, lightness, and portability. Therefore, it has caused more and more attention as an electronic skin sensor. Generally, the research on intelligent components mainly focused on flexible pressure or temperature sensors. However, the surface roughness recognition of object material still remains a challenge. Meanwhile, most of the current surface roughness recognition methods need secondary processing of the sensor signal, and rarely use the signal generated by the sensor to directly identify the surface roughness. In this paper, the load-dependent electric field model is transplanted to the conductor-dielectric contact-separation TENG (CS-TENG), and the surface roughness of conductor can be differentiated theoretically based on the output of CS-TENG. To verify its effectiveness, the TENG devices were fabricated and the home-processed steels of different roughness act as the conductor layers. By contacting the conductor layer with the dielectric layer, the electric output signal based on contact induced electrification can be generated, which can be used to quantitatively estimate the surface roughness of steels. The test results demonstrate that the output of CS-TENG decreases with the increase of surface roughness, which coincides with the simulation prediction. This method is low cost and easy to implement, which provides a new design idea to extend the functions of TENGs as tactile electronic skins.

Keyword :

Conductors contact mechanics Electrodes load-dependent electric field Load modeling Rough surfaces Sensors Steel surface roughness Surface roughness tactile electronic skin Triboelectric nanogenerator

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Wen, Jian , Niu, Chunping , He, Hailong et al. A Load-Dependent Model of Triboelectric Nanogenerators for Surface Roughness Sensing [J]. | IEEE SENSORS JOURNAL , 2021 , 21 (18) : 20220-20228 .
MLA Wen, Jian et al. "A Load-Dependent Model of Triboelectric Nanogenerators for Surface Roughness Sensing" . | IEEE SENSORS JOURNAL 21 . 18 (2021) : 20220-20228 .
APA Wen, Jian , Niu, Chunping , He, Hailong , Han, Weilong , Zhong, Yilin , Wu, Yi . A Load-Dependent Model of Triboelectric Nanogenerators for Surface Roughness Sensing . | IEEE SENSORS JOURNAL , 2021 , 21 (18) , 20220-20228 .
Export to NoteExpress RIS BibTex
Evolution of anodic erosion components and heat transfer efficiency for W and W(80)Ag(20)in atmospheric-pressure arcs EI SCIE
期刊论文 | 2020 , 53 (47) | JOURNAL OF PHYSICS D-APPLIED PHYSICS | IF: 3.207
WoS CC Cited Count: 2
Abstract&Keyword Cite

Abstract :

Based on thein situdiagnostic system and the digital image post-processing technique, quantifications of the anodic erosion components and heat transfer efficiency for tungsten and the W(80)Ag(20)material in arcs of argon, helium, and nitrogen were achieved. The leading vaporization of silver has been found to result in evidently lower anodic heat transfer efficiency and much smaller molten pools compared with those of the tungsten anode, but the intensive generation of silver vapor under the melt layer causes higher splashing erosion of the W(80)Ag(20)anode. However, these characteristics can be strongly changed by the cathodic blowing, which leads to a much higher splashing erosion of tungsten anode but a lower erosion rate of W(80)Ag(20)anode. Through the visualization of the erosion behavior and the post microanalysis of the anode surface, the possible driving mechanisms for the generation of the splashing droplet were discussed. The result indicates that the local high pressure caused by the vapor blasting during the bubble explosion plays a key role in the detachment of splashing droplets. Furthermore, as for the tungsten-based anode, the comparison of erosion behavior between the W(80)Ag(20)anode and the previous-studied W(70)Cu(30)anode makes it clear that increasing the temperature difference between the melting point (MP) of tungsten and the boiling point (BP) of the other material has the pros and cons. It is effective for the decrease of the anode erosion when the anode heat energy is relatively weak, while it can promote the splashing erosion when the liquid tungsten layer has been formed on the anode tip. These results are beneficial for the optimal design of the electrode system in circuit breakers.

Keyword :

anode erosion components heat transfer silver splashing droplet temperature tungsten

Cite:

Copy from the list or Export to your reference management。

GB/T 7714 Cui, Yufei , Wu, Yi , Niu, Chunping et al. Evolution of anodic erosion components and heat transfer efficiency for W and W(80)Ag(20)in atmospheric-pressure arcs [J]. | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2020 , 53 (47) .
MLA Cui, Yufei et al. "Evolution of anodic erosion components and heat transfer efficiency for W and W(80)Ag(20)in atmospheric-pressure arcs" . | JOURNAL OF PHYSICS D-APPLIED PHYSICS 53 . 47 (2020) .
APA Cui, Yufei , Wu, Yi , Niu, Chunping , Rong, Mingzhe , Sun, Hao , Niu, Lizhuang et al. Evolution of anodic erosion components and heat transfer efficiency for W and W(80)Ag(20)in atmospheric-pressure arcs . | JOURNAL OF PHYSICS D-APPLIED PHYSICS , 2020 , 53 (47) .
Export to NoteExpress RIS BibTex
10| 20| 50 per page
< Page ,Total 4 >

Export

Results:

Selected

to

Format:
FAQ| About| Online/Total:1376/170505091
Address:XI'AN JIAOTONG UNIVERSITY LIBRARY(No.28, Xianning West Road, Xi'an, Shaanxi Post Code:710049) Contact Us:029-82667865
Copyright:XI'AN JIAOTONG UNIVERSITY LIBRARY Technical Support:Beijing Aegean Software Co., Ltd.