Voltage support experiment testing platform and method with super-capacitor-based dynamic voltage restorer
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A technology of dynamic voltage recovery and supercapacitor, which is applied in the direction of instruments, measuring electronics, measuring devices, etc., can solve problems such as lack of theoretical data
Inactive Publication Date: 2016-03-09
HARBIN INST OF TECH
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[0008] The purpose of the present invention is to solve the problem of the lack of accurate theoretical data in the actual application of the existing dynamic voltage restorer of the supercapacitor. The present invention provides a voltage support experimental test platform and method for the dynamic voltage restorer based on the supercapacitor
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specific Embodiment approach 1
[0033] Specific implementation mode one: combine figure 1 and figure 2 Describe this embodiment, the supercapacitor-based dynamic voltage restorer voltage support experiment test platform described in this embodiment,
[0034] The test platform includes a programmable grid fault simulator, a programmable load and a dynamic voltage restorer based on a supercapacitor;
[0035] Programmable power grid fault simulator, used to simulate the voltage drop of the power grid, and input the working voltage for the programmable load;
[0036] In practical applications, the voltage drop of the power grid is easily caused by lightning, line faults, etc.;
[0037] The dynamic voltage restorer based on the supercapacitor is used to collect the voltage output by the programmable grid fault simulator, judge the drop according to the voltage, and compensate the working voltage of the programmable load according to the drop;
[0038] Programmable load, loads with different low-voltage protec...
specific Embodiment approach 2
[0064] Specific implementation mode two: the supercapacitor-based dynamic voltage restorer voltage support experimental testing method described in this implementation mode, the method includes the following steps:
[0065] Steps for simulating the voltage drop of the power grid and inputting the working voltage for the load;
[0066] Steps for collecting the input working voltage of the load, judging the drop according to the voltage, and compensating the working voltage of the load according to the drop;
[0067] Steps to set the load low-voltage protection threshold.
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Abstract
The invention, which belongs to the technical field of the voltage support of the power grid, provides a voltage support experiment testing platform and method with a super-capacitor-based dynamic voltage restorer. In order to solve a problem of lack of accurate theoretical data of the super-capacitor-based dynamic voltage restorer in practical application, the testing platform comprises a programmable grid fault simulator, a programmable load and, and a super-capacitor-based dynamic voltage restorer. The programmable grid fault simulator is used for simulating a voltage drop of a simulated grid and inputting a working voltage for a programmable load; the super-capacitor-based dynamic voltage restorer is used for collecting the voltage outputted by the programmable grid fault simulator, determining a drop situation according to the voltage, and carrying out compensation on the working voltage of the programmable load based on the drop; and the programmable load is used for setting loads with different low-voltage protection threshold values. According to the invention, the provided testing platform is used for providing data for scientific researches. And according to the testing method, the testing platform is realized by using software programs to carry out a simulated experiment.
Description
technical field [0001] The invention belongs to the technical field of power grid voltage support, and relates to a supercapacitor-based dynamic voltage restorer voltage support experimental testing platform and method. Background technique [0002] With the advancement of science and technology, more and more users have adopted high-tech equipment with good performance and high efficiency but sensitive to changes in power supply characteristics, such as: robots, medical emergency agencies, automated production lines, precision CNC machine tools, high-precision measuring instruments, computers information management system, etc. These electrical systems and electrical equipment are very sensitive to various disturbances of the power grid. Power quality problems caused by any reason may cause significant economic losses and adverse social impacts. Among the power quality problems, voltage sag occurs most frequently and causes the most serious consequences. There are many r...
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