Electric energy quality demonstration system
A power quality and demonstration system technology, applied in educational appliances, instruments, teaching models, etc., can solve the problem of not being able to output active power, harmonics, and a single signal source at the same time, and achieve stable work, flexible control, and powerful functions.
Inactive Publication Date: 2015-12-23
ANHUI USEM TECH CO LTD
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Problems solved by technology
[0003] At present, most demonstration platforms or purchased signal sources are relatively single, unable to meet the functions of simultaneously outputting active power, harmonics and unbalance, and the working voltage is generally around 220V, which is a challenge to the safety performance of the platform
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[0018] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.
[0019] The invention provides a power quality demonstration system, the power quality demonstration system includes: a load cabinet, an active filter, a sampling device and a power quality display instrument, the load cabinet is used to generate harmonic current, unbalanced current and reactive current, The active filter is configured to be connected to the load cabinet, and real-time tracking compensation is performed according to the harmonic current, unbalanced current and reactive current to obtain the cured current; the sampling device is configured to be connected to the load cabinet and the active filter to Collect harmonic current, unbalanced current, re...
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The invention discloses an electric energy quality demonstration system. The electric energy quality demonstration system comprises a load cabinet, an active filter, a sampling apparatus and an electric energy quality display instrument, wherein the load cabinet is used for generating a harmonic wave current, an unbalance current and a reactive current; the active filter is configured to connect with the load cabinet and perform real-time tracking compensation according to the harmonic wave current, the unbalance current and the reactive current so as to obtain the current after treatment; the sampling apparatus is configured to connect with the load cabinet and the active filter to acquire the harmonic wave current, the unbalance current, the reactive current, the system voltage and the current after treatment; and the electric energy quality display instrument is configured to connected with the sampling apparatus to display the harmonic wave current, the unbalance current, the reactive current, the system voltage and the current after treatment. The electric energy quality demonstration system overcomes the problem that the existing platform is not stable and cannot perform compensation and display, and has the electric energy quality demonstration characteristics of being visual and convenient in operation, being complete in functions, and being flexible in control.
Description
technical field [0001] The invention relates to the field of demonstration and inspection of power quality control effects, in particular to a power quality demonstration system. Background technique [0002] With the development of power electronics technology, various rectifiers and other power electronic devices are widely used in industry, transportation and household appliances. In the distribution network, due to the variability of power loads, power harmonics, reactive power and Various problems of power quality such as three-phase unbalance often coexist, and they will bring various hazards to the power grid and power users. With the development of high-tech industries, power users have higher and higher requirements for power quality, and more advanced equipment has higher requirements for power quality, which poses a great challenge to the power supply side. But at the same time, the power quality problem in the low-voltage distribution network is mainly caused by...
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IPC IPC(8): G09B23/18
CPCG09B23/188G09B23/181
Inventor 束龙胜桂吉祥陈任峰单任仲吴旭红李子缘
Owner ANHUI USEM TECH CO LTD