Non-contact type contact network induction self-power-taking device
A non-contact, catenary technology, applied in circuit devices, emergency power supply arrangements, output power conversion devices, etc., can solve the problems of no countermeasures, low power extraction efficiency, unstable current, etc., to prevent high energy Transient interference, large changes in field strength, and high power extraction efficiency
Inactive Publication Date: 2021-04-27
兰宏昌 +1
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Problems solved by technology
[0006] 1. The existing power-taking equipment based on the railway catenary is poor in effect. It uses the electric field for power-taking. The power-taking efficiency is low and the current is unstable.
[0007] 2. Existing various power-taking equipment based on railway catenary power-taking are easily burned by high current, and there is no corresponding structure or method designed for high-current situations to solve this problem
[0008] 3. The existing various power-taking equipment has no countermeasures for the large current caused by the dramatic field strength changes caused by lightning. Once the power-taking equipment is struck by lightning near the power-taking equipment, the power-taking equipment will be burned
Method used
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Embodiment 1
[0033] like figure 1 figure 2 As shown, a non-contact catenary induction self-feeding device, its circuit includes a power fetching circuit and a power conversion circuit, the power fetching circuit includes a first current transformer L1, a first bridge rectifier diode, a first current transformer L1 is located on one side of the catenary, and in application, the first current transformer L1 can be installed in the track where it does not affect the working status of other equipment according to actual needs. Both ends of the first current transformer L1 are connected to two input terminals of the bridge rectifier diode, the anode output and the cathode output of the bridge rectifier diode are connected to the power conversion circuit, and the power conversion circuit is connected to the load. The non-contact power-taking circuit generates current through the current transformer, and the current is rectified by the full bridge to obtain a DC voltage with a certain range of ...
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The invention discloses a non-contact type contact network induction self-power-taking device. The circuit of the non-contact type contact network induction self-power-taking device comprises a non-contact power-taking circuit, a control circuit and a bleeder circuit, wherein the power-taking circuit comprises a first current transformer and a first bridge rectifier diode, the first current transformer is located on one side of a contact network, the two ends of the first current transformer are connected with the two input ends of a bridge rectifier diode, the positive electrode output and the negative electrode output of the bridge rectifier diode are connected with a power conversion circuit, and the power conversion circuit is connected with a load. According to the invention, the field intensity change of the induced magnetic field of the overhead line system above the railway can be utilized to take electricity, so that the field intensity change is large, and the electricity taking efficiency is high; a voltage stabilizing circuit is arranged, so that the current is stable; and by arranging a transient suppression diode, a bleeder circuit and a control coil circuit, a chip in the device is prevented from being burnt down and damaged by large current generated by sudden increase of the magnetic field intensity due to huge change of the magnetic field intensity of the overhead line system or surge generated by lightning stroke to a great extent.
Description
technical field [0001] The invention belongs to the technical field of rail power acquisition, and in particular relates to a non-contact catenary induction self-power acquisition device. Background technique [0002] With the current development of the Internet of Things, various wireless online detection instruments have ushered in a new development boom, adopting various online monitoring methods to monitor the entire life cycle of the railway to ensure the healthy operation of the railway and provide guarantee for the safe transportation of the railway It can also be realized by various online detection devices. [0003] Adding railway on-line monitoring device, the power supply of the device is the prerequisite for the operation of various devices. However, in the actual installation process, each detection device cannot use the original railway signal power supply, so as not to affect the railway signal power supply, it is necessary for the equipment to establish an i...
Claims
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Login to View More IPC IPC(8): H02J50/10H02M1/32H02J9/06
CPCH02J50/10H02M1/32H02J9/061
Inventor 兰宏昌张译文
Owner 兰宏昌