Electromagnetic signal test platform for frequency conversion and speed regulation all-in-one machine
A frequency conversion speed regulation and electromagnetic signal technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of low protection level, equipment interference, long output cable from frequency converter to motor, etc., to improve efficiency and reduce interference effect
Inactive Publication Date: 2020-12-04
SHANDONG UNIV OF SCI & TECH
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Problems solved by technology
[0002] At present, the large-scale equipment in mines mainly adopts the transmission mode of "high-voltage frequency converter + motor". The frequency converter is large in size, low in protection level, and the output cable from the frequency converter to the motor is long. Equipment work space and harsh environment requirements
If the high-voltage frequency converter and the motor are combined, the length of the output cable can be reduced. However, the working conditions of the mine equipment site are harsh, and the temperature between the frequency converter and the motor affects each other, and there is mutual interference and anti-interference compatibility between electromagnetic signals. Therefore, there is an urgent need for multi-source information perception systems and comprehensive protection devices for frequency conversion and speed regulation all-in-one machines to realize real-time monitoring of faults such as temperature, voltage, and stalling. Protection and operational trend analysis for safe, reliable, and long-life equipment operation at extremely high power densities
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[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them.
[0029] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "vertical", "upper", "lower", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be...
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The invention discloses an electromagnetic signal test platform for a frequency conversion and speed regulation all-in-one machine, and belongs to the technical field of coal mine and mine production.The electromagnetic signal test platform for the frequency conversion and speed regulation all-in-one machine comprises a control chamber, a darkroom, a first shielding chamber and a second shieldingchamber which are separated through shielding walls, an upper computer, a D / A converter, a display screen and a field intensity meter are arranged in the control chamber, and the upper computer is connected with the D / A converter and the display screen. A frequency conversion and speed regulation all-in-one machine, an EMC antenna and a current probe are arranged in the darkroom; an EMI test receiver is arranged in the first shielding chamber, the input end of the EMI test receiver is connected with the field intensity meter, the EMC antenna and the current probe, and the output end of the EMI test receiver is connected with the upper computer; and a dynamometer and a power supply network are arranged in the second shielding chamber. The electromagnetic signal test platform for the frequency conversion and speed regulation all-in-one machine can test the electromagnetic compatibility of the frequency conversion and speed regulation all-in-one machine, can judge the reliability of thefrequency conversion and speed regulation all-in-one machine, and ensures that the current magnetic field intensity does not influence the safety of workers.
Description
technical field [0001] The invention relates to the technical field of coal mines and mine production, in particular to an electromagnetic signal testing platform for a frequency conversion and speed regulation integrated machine. Background technique [0002] At present, the large-scale equipment in mines mainly adopts the transmission mode of "high-voltage frequency converter + motor". The frequency converter is large in size, low in protection level, and the output cable from the frequency converter to the motor is long. Equipment work space and harsh environment requirements. If the high-voltage frequency converter and the motor are combined, the length of the output cable can be reduced. However, the working conditions of the mine equipment site are harsh, and the temperature between the frequency converter and the motor affects each other, and there is mutual interference and anti-interference compatibility between electromagnetic signals. Therefore, there is an urgen...
Claims
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IPC IPC(8): G01R31/00G01D21/02
CPCG01R31/001G01D21/02
Inventor 马英张强田莹
Owner SHANDONG UNIV OF SCI & TECH