A high efficiency static VAr compensation scheme using modified magnetic energy recovery switch (MERS) with parameters selection of passive elements for low harmonic injection

High Efficiency Deep Grinding (HEDG) has been known to secure high removal rates in grinding processes at high wheel speed, relatively large depth of cut and moderately high work speed. High removal rates in HEDG are associated with very efficient grinding and secure very low specific energy comparable to conventional cutting processes. Though there exist HEDG-enabled machine tools, the wide spread of HEDG has been very limited due to the requirement for the machine tool and process design to ensure workpiece surface integrity. HEDG is an aggressive machining process that requires an adequate selection of grinding parameters in order to be successful within a given machine tool and workpiece configuration. This paper presents progress made in the development of a specialised HEDG machine. Results of HEDG processes obtained from the designed machine tool are presented to illustrate achievable high specific removal rates. Specific grinding energies are shown alongside with measured contact arc temperatures. An enhanced single-pole thermocouple technique was used to measure the actual contact temperatures in deep cutting. The performance of conventional wheels is depicted together with the performance of a CBN wheel obtained from actual industrial tests.

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Research and Application of High-Efficiency Multi-Cyclone Dust Removal

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.109.400 ◽

2011 ◽

Vol 109 ◽

pp. 400-404

Author(s):

Yan Hong Yang ◽

Da Fu Ni

Keyword(s):

Structural Design ◽

High Efficiency ◽

Dust Removal ◽

Working Principle ◽

Selection Of

Performance and working principle of high-efficiency multi-cyclone were analyzed, and the structural design shortage of original high-efficiency multi-cyclone was pointed out. Its structure was researched and designed, including determination of setting chamber and pipe number, selection of material and the design of cyclones.

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Loss and Rating Considerations of a Wind Energy Conversion System with Reactive Compensation by Magnetic Energy Recovery Switch (MERS)

2008 Wind Power to the Grid - EPE Wind Energy Chapter 1st Seminar ◽

10.1109/epewecs.2008.4497316 ◽

2008 ◽

Cited By ~ 14

Author(s):

Jan Arild Wiik ◽

Arkadiusz Kulka ◽

Takanori Isobe ◽

Kazuhiro Usuki ◽

Marta Molinas ◽

...

Keyword(s):

Wind Energy ◽

Energy Conversion ◽

Energy Recovery ◽

Magnetic Energy ◽

Wind Energy Conversion System ◽

Wind Energy Conversion ◽

Reactive Compensation ◽

Conversion System ◽

Energy Conversion System

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From Coarse to Fine: An Augmented Reality Based Dynamic Inspection Method for Visualized Railway Routing of Freight Cars

Measurement Science and Technology ◽

10.1088/1361-6501/ac3c1c ◽

2021 ◽

Author(s):

Bing Yi ◽

Renkai Sun ◽

Long Liu ◽

Yongfeng Song ◽

Yinggui Zhang

Keyword(s):

Augmented Reality ◽

High Efficiency ◽

Low Cost ◽

Digital Data ◽

Route Selection ◽

Inspection Method ◽

Envelope Model ◽

Freight Car ◽

Cargo Transportation ◽

Selection Of

Abstract It is a challenge for the dynamic inspection of railway route for freight car transporting cargo that out-of-gauge. One possible way is using the inspection frame installed in the inspection train to simulate the whole procedure for cargo transportation, which costs a lot of manpower and material resources as well as time. To overcome the above problem, this paper proposes an augmented reality (AR) based dynamic inspection method for visualized railway routing of freight car with out-of-gauge. First, the envelope model of the dynamic moving train with out-of-gauge cargo is generated by using the orbital spectrum of the railway, and the envelope model is matched with a piece of homemade calibration equipment located on the position of the railway that needs to be inspected. Then, the structure from motion (SFM) algorithm is used to reconstruct the environment where the virtual envelope model occludes the buildings or equipment along the railway. Finally, the distance function is adopted to calculate the distance between the obstacle and the envelope of the freight car with out-of-gauge, determining whether the freight car can pass a certain line. The experimental results show that the proposed method performs well for the route selection of out-of-gauge cargo transportation with low cost, high precision, and high efficiency. Moreover, the digital data of the environments along the railway and the envelope of the freight car can be reused, which will increase the digitalization and intelligence for route selection of out-of-gauge cargo transportation.

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Assessment of efficiency of distribution centre at different variants of freight traffic consolidation

Transport of the Urals ◽

10.20291/1815-9400-2021-3-22-27 ◽

2021 ◽

pp. 22-27

Author(s):

Elena Dmitrievna Pserovskaya ◽

◽

Anna Pavlovna Grefenshteyn ◽

Keyword(s):

Potential Benefit ◽

High Efficiency ◽

Positive Influence ◽

Correct Selection ◽

Freight Traffic ◽

Distribution Centre ◽

Selection Of

For the determination of a potential benefit from creation of a distribution centre the paper proposes a method and presents results of calculation of a decrease of total number of rides and total run of automobiles at various variants of goods consolidation. The authors have established a positive influence of the centre on intracity transportation. At the same time, high efficiency of the considered technology can be reached by involvement of a bigger number of consignees and by consolidation of a relatively small number of goods batches in one automobile at efficient routing and correct selection of location of a distribution centre.

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