Electric locomotive harmonic suppression device and electric locomotive power supply system
An electric locomotive and harmonic technology, applied in harmonic reduction devices, electric vehicles, electric traction, etc., can solve the problems of limited functions, large volume and large capacity of ground harmonic control devices, and achieve the effect of reducing interference
Active Publication Date: 2014-06-04
CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST
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Problems solved by technology
[0006] However, the ground harmonic control device has a large volume, large capacity, and large footprint, and the one-time investment cost is too high, and it is difficult to play a good role in the mutual harmonic interference of the locomotive workshop caused by the mixed running of AC and DC locomotives. It is difficult to fundamentally eliminate the burning loss of related components of DC locomotives, so its functions are still limited
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[0030] The implementation of the present invention will be described in detail below in conjunction with the accompanying drawings and examples, so as to fully understand and implement the process of how to apply technical means to solve technical problems and achieve technical effects in the present invention. It should be noted that, as long as there is no conflict, each embodiment and each feature in each embodiment of the present invention can be combined with each other, and the formed technical solutions are all within the protection scope of the present invention.
[0031] Aiming at the deficiencies of existing ground harmonic control devices, the present invention provides a vehicle-mounted electric locomotive harmonic control device, and also provides an electric locomotive power supply system using the harmonic control device for harmonic control, figure 1 A structural diagram of the electric locomotive power supply system in this embodiment is shown.
[0032] Such a...
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The invention discloses an electric locomotive harmonic suppression device and an electric locomotive power supply system. The harmonic suppression device is installed on an electric locomotive, is connected with the input end of an electric locomotive load in parallel, and comprises a high-order harmonic filter circuit and a low-order harmonic filter circuit. The high-order harmonic filter circuit and the low-order harmonic filter circuit are connected in parallel and are used for filtering harmonic wave transmitted by a power supply wire network of the electric locomotive and / or harmonic wave generated by the electric locomotive load so as to eliminate influence on the electric locomotive load from the power supply wire network and / or influence on the power supply wire network from the harmonic wave generated by the electric locomotive load. The vehicle-mounted mode is adopted, the structure is simple, the size is small, cost is low, and the harmonic wave transmitted from the power supply wire network to the electric locomotive and the harmonic wave transmitted from the electric locomotive to the power supply wire network can be filtered out effectively, so that interference between electric locomotives within the same power supply range is reduced to the minimum.
Description
technical field [0001] The invention relates to the technical field of power electronics, in particular to an electric locomotive harmonic control device and an electric locomotive power supply system. Background technique [0002] With the maturity and application of AC drive technology, high-power AC drive locomotives have occupied the main position in trunk line transportation. The AC locomotive has strong transportation capacity and high transportation efficiency, and adopts pulse width modulation conversion technology, and the power factor of the grid-side converter is high. However, the large-scale use of AC locomotives has also brought new power quality problems. The harmonic spectrum distribution of AC locomotives is wide. When the parameters of the traction network meet certain conditions, certain orders of harmonics may be amplified, and even vehicle-network resonance may occur. High-order harmonics will also cause damage to the RC loop resistance of DC electric l...
Claims
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IPC IPC(8): H02J3/01B60L9/00
CPCY02E40/40
Inventor 冯江华陈志博章志兵周会张志学尚敬罗文广刘华东胡景瑜张定华
Owner CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST