DC dvr large capacity supercapacitor energy storage system
A technology for supercapacitors and energy storage systems, which can be used in collectors, electric vehicles, electrical components, etc., and can solve problems such as output voltage drops
Active Publication Date: 2020-12-25
HIWING TECH ACAD OF CASIC
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[0003] The invention provides a DC DVR large-capacity supercapacitor energy storage system, which can solve the technical problem that the output voltage of the energy storage system in the prior art drops sharply when discharging a large current
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[0024]It should be noted that the embodiments in the application and the features in the embodiments can be combined with each other if there is no conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative, and in no way serves as any limitation to the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0025]It should be noted that the terms used here are only for describing specific embodiments, and are not in...
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The invention provides a direct-current DVR high-capacity super-capacitor energy storage system. The system comprises a main super-capacitor energy storage module, a DVR internal resistance compensation device, a compensation capacitor energy storage module and a control unit, wherein the DVR internal resistance compensation device is connected with the main super-capacitor energy storage module in series, the compensation capacitor energy storage module is connected with the DVR internal resistance compensation device so as to provide energy for the DVR internal resistance compensation device, and the control unit is connected with the main super-capacitor energy storage module, the DVR internal resistance compensation device and the compensation capacitor energy storage module; when thevoltage of the main super-capacitor energy storage module is less than or equal to a set voltage stabilization value, the control unit controls the DVR internal resistance compensation device to be communicated with the main super-capacitor energy storage module; and when the voltage of the main super-capacitor energy storage module is greater than the set voltage stabilization value, the controlunit controls the DVR internal resistance compensation device not to be communicated with the main super-capacitor energy storage module. According to the technical scheme, the technical problem thatthe output voltage of an energy storage system greatly drops when performing high-current discharging in the prior art is solved.
Description
Technical field[0001]The invention relates to the technical field of electric power storage and DC conversion, in particular to a DC DVR large-capacity super capacitor energy storage system.Background technique[0002]The problem of voltage drop when used for electromagnetic ejection with high current discharge is common in various energy storage systems, which is related to the internal resistance and limited energy of energy storage components. In the face of electromagnetic ejection loads that require high current power supply, the energy storage system is required to provide a considerable current within a certain period of time. However, due to the existence of the internal resistance of the energy storage element, its output voltage will decrease as the current increases , Therefore, the output voltage of the energy storage system may drop significantly.Summary of the invention[0003]The invention provides a DC DVR large-capacity super capacitor energy storage system, which can s...
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IPC IPC(8): H02J7/34H02J7/00
CPCH02J7/0024H02J7/345
Inventor 康颖韦克康季旭毛凯张艳清孙力国海峰段建东
Owner HIWING TECH ACAD OF CASIC