Control of Traction Power Supply System Modes, Equipped With Electricity Storage Devices

Kryukov, Andrey; Kargapol’cev, S. K.; Zakaryukin, Vasiliy; Cherepanov, Aleksandr

doi:10.17654/ec017051185

Cited by 4 publications

(1 citation statement)

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“…Due to the use of controlled SRP providing response time of 5...20 ms, voltage fluctuations can significantly be reduced. Voltage deviations and fluctuations can also be reduced by energy storage devices which allow to significantly improve the indices characterizing transiency of TPSS mode [10]. A two-fold reduction in voltage unsymmetry factor can be obtained on traction substations supply voltage buses U k 2 based on the use of one-phase controlled SRP.…”

Section: Methods For Enhancing Power Qualitymentioning

confidence: 99%

Power quality in high voltage mains supplying mainline railroads’ traction substations

2019

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The increase in the trains weight and their operation speeds leads to considerable growth of abrupt-variable, non-linear and one-phase traction loads. This, in its own turn, leads to significant deviations, unsymmetry and voltage harmonic distortions in 110-220 kV mains adjacent to traction substations of AC railroads. Significant deterioration in power quality factors is observed in Siberian and Far East regions where 110-220 kV main power transmission lines are immediately adjacent to Transsib traction substations; in this case, in points with lower levels of short circuit power, power quality factors exceed by far the permissible levels. The articles provides the results of studies aimed at solution of power quality enhancement is-sues for mains adjacent to traction substations of Trans-Siberian Railway. To enhance power quality in mains supplying traction substations, smart grid technologies can be used together with multiagent control systems. Technical solutions, based on the results obtained, are proposed that allow to bring the power quality factors to the regulatory values. Due to a big investments amount, an implementation of tar-get program is needed to resolve the large-scale issue of enhancing power quality in mains adjacent to traction substations of AC railroads.

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Section: Methods For Enhancing Power Qualitymentioning

confidence: 99%

Power quality in high voltage mains supplying mainline railroads’ traction substations

2019

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Measures to the improvement of efficiency of a repair enterprise

Konyuhov

Gladkih

Semenov

2019

J. Phys.: Conf. Ser.

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Improving operational characteristics of wave gears

Tupitsyn

Pogodin

2019

IOP Conf. Ser.: Mater. Sci. Eng.

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The advantage of wave gears is a possibility to obtain greater transmission ratios in one stage. The main drawback is a short life of a flexible gear due to large deformations with cyclically changing stresses. The proposed technical solution provides using a roller chain instead of the flexible gear. The gear arrangement is similar to a two-wave gear in which there is a wheel used instead of the flexible gear, with each tooth of it consisting of three rollers located in axial alignment. Middle row rollers are located along the edge of the master jaw. The outermost row rollers of the located along the lesser diameter of the jaw come into external engagement with two immobile gear wheels which have the number of the teeth equal to the number of the chain rollers. As a result, the chain does not rotate. The outermost row rollers that are located along the greater diameter of the jaw come into internal engagement with the follower wheel. At the cost of the differences of the follower wheel teeth and the chain rollers, the motion transmission occurs. The supposed transmission arrangement allows providing a transmission ratio in one stage up to 6 and higher that reduces the dimensions of the actuator.

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Control of Traction Power Supply System Modes, Equipped With Electricity Storage Devices

Cited by 4 publications

References 0 publications

Power quality in high voltage mains supplying mainline railroads’ traction substations

Power quality in high voltage mains supplying mainline railroads’ traction substations

Measures to the improvement of efficiency of a repair enterprise

Improving operational characteristics of wave gears

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