High-voltage direct-current power supply and control method thereof
A high-voltage DC power supply and sub-controller technology, applied to DC circuits with more than three wires, control/regulation systems, DC power input to DC power output, etc., can solve voltage fluctuations, harmonic current pollution, and frequent changes in transmission line voltage and other issues, to achieve the effect of increasing the voltage
Pending Publication Date: 2022-04-15
HUNAN UNIV
View PDF1 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The above characteristics make the traditional power supply must be designed according to the peak power capacity, resulting in waste of equipment capacity
At the same time, the strong pulse characteristics cause a series of problems such as harmonic current pollution, voltage fluctuation and flicker to the power supply system
In addition, the low-frequency pulse load forms repeated loading and unloading impacts on the power supply system, causing large and frequent changes in the voltage of the transmission line, affecting the normal operation of other loads
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0053] The present invention provides a high-voltage DC power supply. An energy storage system is added to the output port of the converter at the source end, and a control circuit and an energy storage battery pack are packaged into an energy storage unit. An energy storage system includes a plurality of energy storage units, and each energy storage The units are sequentially cascaded and then electrically connected to the source converter through the main control circuit. When the energy storage system is discharged, the control circuit connects the energy storage battery pack in series with the output port of the source converter and supplies it to the power application system. The voltage after series connection meets the voltage requirements of the power application system, thus reducing the output of the source converter. Voltage requirements, at the same time, under the same output power, the input port power of the high-voltage DC power supply is reduced. Moreover, the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a high-voltage direct-current power supply and a control method thereof.The power supply device is additionally provided with an energy storage system, low-voltage input, high-voltage input, low-power input and high-power output can be achieved, and the step-up ratio can be large under the condition that a high-transformation-ratio transformer does not need to be used. Meanwhile, due to the existence of the energy storage system, the device is particularly suitable for application places with high peak-to-average power ratios; the energy storage system in the discharge stage directly outputs power to the outside and does not need an electric energy conversion device, so that all power only needs to be subjected to single-stage conversion, and the energy storage system is not only used for storing energy to increase the output power of the device, but also can improve the voltage of an output port to play a role in boosting.
Description
technical field [0001] The invention relates to the field of high-voltage direct-current power supply equipment, in particular to a high-voltage direct-current power supply and a control method thereof. Background technique [0002] With the continuous advancement of global technology and the continuous upgrading of industries, power supply equipment has become the heart of various industrial equipment, and great changes have taken place in power supply systems. Traditional power supplies can no longer meet higher demands. High output voltage level, high power density, and high reliability are the goals pursued by high-voltage DC power supplies. The power scheme adopted by the traditional high-voltage DC power supply is that the input terminal is connected to the AC mains, which is boosted to a high-voltage AC by a step-up transformer, and then rectified to obtain a high-voltage output. This kind of power supply is relatively low in cost and mature in technology. The isolat...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H02M3/156H02M3/335H02J7/02H02J7/00H02J7/36H02J1/08
Inventor 罗安莫楠徐千鸣张家奎郭鹏胡家瑜徐百龙
Owner HUNAN UNIV