A large current power supply and its constant current control method and system
A high-current power supply and power supply technology, applied in control/regulation systems, DC power input conversion to DC power output, electrical components, etc., can solve problems such as difficult control, unfavorable mobile testing, and cumbersome operation
Active Publication Date: 2021-01-01
WENZHOU ELECTRIC POWER BUREAU +2
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Due to the external load system, the former has the problems of bulky, heavy, and cumbersome operation, which is not conducive to mobile testing
The latter not only has the problem of unstable output current, difficult to control, and large current ripple, but also requires an output rectifier tube in the process of rectifying AC to DC, which makes rectification and filtering difficult, and the power consumption of the rectifier diode under high current is very high. Big
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
[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] The purpose of the present invention is to provide a high-current power supply and its control method and system. The load end of the high-current power supply has no output rectifier diode and filter capacitor, and there is no need to consider the power consumption of the output rectifier diode under high current. The high-current power supply A constant output current can be obtained at the load end.
[0032] In order to make the above objects, featur...
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 large current power supply and its constant current control method and system. The high-current power supply provided by the invention includes: a primary power supply, an energy feeding circuit and a DC current booster. The energy feeding circuit includes a freewheeling diode and a magnetic reset winding, and the secondary coil of the DC booster is connected to the load. The load end of the high-current power supply provided by the present invention has no output rectifier diode and filter capacitor, so there is no need to consider the power consumption of the output rectifier diode under high current, and there is no need to use an electrolytic capacitor for filtering, which not only greatly prolongs the service life of the power supply , and it is easy to output a larger current through expansion, the power supply circuit is simple, small in size, easy to control, and high in reliability. The control method and system provided by the invention can accurately control the output voltage of the Buck circuit in the primary power supply, so that the high-current power supply can obtain a constant output current at the load end.
Description
technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a high-current power supply and a constant-current control method and system thereof. Background technique [0002] The DC circuit breaker is an important protective device in the converter station in the DC transmission system. It can overhaul the system and deal with the faults without power failure to ensure the normal operation of the system. DC combiner boxes and DC power distribution cabinets in photovoltaic power stations mainly use DC circuit breakers as switches. The main functions are overcurrent protection and isolation, and provide selective protection for faults caused by branch switches. Especially in the centralized photovoltaic grid-connected system, there are a large number of DC combiner boxes and DC power distribution cabinets, which require a large number of DC circuit breakers. The rapid development of photovoltaic power generation has put fo...
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 Patents(China)
IPC IPC(8): H02M3/156
CPCH02M3/1563H02M3/156H02M3/3381G05F1/563G05F1/565G05F1/569G05F1/573G05F1/62
Inventor 朱翔鸥和志文徐玉戴瑜兴
Owner WENZHOU ELECTRIC POWER BUREAU