A terminal and a terminal construction system based on an electrical load management identification system
A technology for identifying electrical loads and loads, applied to circuit devices, electrical components, etc., can solve problems such as unrealizable, inability to identify resistive loads, inductive load air conditioning, and capacitive loads that cannot be detected and controlled, etc., to achieve easy operation, The effect of reducing the risk of misjudgment and improving prosecution and safety
Active Publication Date: 2019-05-17
北京正祥瑞科技有限责任公司
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Problems solved by technology
However, this kind of power measurement and control system generally has the following limitations: (1) it cannot effectively identify the nature of the resistive load (such as electrical appliances that are allowed or not allowed to be used); The inductive load air conditioner and capacitive load cannot be detected and controlled; (3) Uninterrupted and unlimited power time control in toilets, aisles and other public emergency lighting spaces in densely populated power consumption environments (but metered electricity charges) can not achieve
(4) It cannot effectively detect the faults of common electrical loads and give an alarm
Method used
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[0019] Example of the present invention: an intelligent identification system for electric load management, including a frequency selection circuit, the frequency selection circuit includes an active band-pass filter composed of an integrated operational amplifier and an RC network, and the active band-pass filter passes Harmonics generated by nonlinear loads are all generated by the switching operation of semiconductor thyristors and the nonlinear characteristics of diodes and semiconductor thyristors. The source filter has both amplification and buffering functions, and the active filter can highlight signals of any frequency and suppress other frequency signals. The generation of the harmonic current order is related to the pulse number of the power converter, and the harmonic current order The generation is related to the pulse number of the power converter. For example, a 6-pulse device will only generate 5, 7, 11, 13, 17, 19...n harmonic currents. The higher the pulse num...
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The invention discloses terminals and a terminal building system based on an electric load management intelligent recognition system. The electric load management intelligent recognition system comprises a frequency selection circuit; the frequency selection circuit comprises an active band pass filter formed by an integrated operational amplifier and an RC network; the terminals comprise a power interface, a current sensor, a voltage sensor ASSS, an A / D conversion module, a communication module, a relay control module and output jacks; the terminal building system comprises a server, a communication network, multiple terminal electric devices, multiple electric load management intelligent recognition system terminals, and multiple concentrator. Through the above technical scheme, through carriers of the frequency selection circuit, terminals formed by the recognition system can be recognized, and the terminal building system can realize power supply, power control, power limit, meter reading and charging; and electric detection and measurement can be carried out by the multiple terminal electric devices, timely alarming and forced power cutoff can be carried out, records can be exchanged with the server, and detection, control and safety are improved.
Description
technical field [0001] The invention discloses a terminal and a terminal construction system based on an electric load management identification system. Background technique [0002] At present, the safety of electricity use in densely populated environments such as student apartments and staff dormitories in colleges and universities has gradually received great attention from managers. In order to effectively prevent or eliminate fire hazards, it is necessary to control electric heating loads with high power or potential safety hazards, such as electric stoves, fast heating, electric irons, etc. Intelligent measurement and control technology can be effectively used for the detection of such vicious loads, so it is obtained more and more widely applied. At present, intelligent measurement and control terminals are usually only used to identify purely resistive loads in linear loads (such as electric heaters, electric stoves, electric blankets, etc.). At present, the more ...
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IPC IPC(8): H02J13/00
Inventor 韩丽茹艾树峰张浩斌张永华
Owner 北京正祥瑞科技有限责任公司