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Modular power supply system

A technology of modular power supply and auxiliary power supply, which is applied in the direction of control/regulation system, electrical components, and adjustment of electrical variables, etc., which can solve the problems of complex overall structure of HVDC-Light, large number of power units 40, and low reliability, so as to improve Reliability, simplification of structure design, effect of cost reduction

Inactive Publication Date: 2018-09-21
DELTA ELECTRONICS (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Since the DC voltage of HVDC-Light is as high as hundreds of kilovolts, the number of power units 40 that need to be cascaded is extremely large, so the above-mentioned problems are more significant, that is, the overall structure of HVDC-Light in the prior art is complex, costly and reliable. Low sex

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  • Modular power supply system
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Embodiment Construction

[0062] Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments, however, can be embodied in various forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The drawings are merely schematic illustrations of the invention and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repeated descriptions will be omitted.

[0063] Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided in order to give a thorough understanding of embodiments of the present invention. However, those skilled in the art ...

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Abstract

The invention provides a modular power supply system which is configured to comprise a master controller which is configured for outputting a master control signal; N local controllers of which each is configured for receiving the master control signal so as to output at least one local control signal; N auxiliary power supplies which are corresponding to the N local controllers in a one-to-one way, wherein each auxiliary power supply is configured for supplying power to the corresponding local controller; and N power units which are corresponding to the N local controllers in a one-to-one way, wherein each power unit comprises a first end and a second end, the second end of each power unit is connected with the first end of the adjacent power unit, each power unit is configured to comprise M power converters, and each power converter is configured for operating according to the local control signal outputted by the corresponding local controller.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to a modular power supply system. Background technique [0002] At present, in some applications with higher voltage levels (such as above 10kV), such as Static Var Generator (SVG), Medium Variable-frequency Drive (MVD), and light-duty high-voltage DC transmission systems (High Voltage Direct Current Transmission Light, HVDC-Light), etc., due to the high system voltage level, limited by the withstand voltage level and cost of semiconductor devices, the circuit topology of cascaded power units is usually used. [0003] The traditional topology of cascaded power units requires that each power unit, that is, a power converter, be equipped with a set of optical fibers, an auxiliary power supply, and a local controller. This topology of cascaded power units increases as the voltage level increases, and the number of power units that need to be cascaded also increases, resultin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M1/00H02M1/08H02M7/483
CPCH02M1/00H02M1/08H02M1/32H02M3/00H02M7/00H02M7/487H02M7/493H02M7/483H02M1/0067H02M1/007H02M1/325H02M7/4835H02M7/49G05F1/10H02M1/096H02M1/0006H02M7/4837H02M1/0095
Inventor 应建平王明黄宵驳刘军胡志明
Owner DELTA ELECTRONICS (SHANGHAI) CO LTD