Master-slave mode DC power supply series control structure and control method

A DC power supply and series control technology, applied in the direction of DC network circuit devices, electrical components, circuit devices, etc., can solve the problems of poor precision and ripple indicators, switching power supply can not achieve independent voltage equalization, etc., to achieve good dynamic performance, Realize the effect of high-speed dynamic follow-up and autonomous voltage equalization control

Inactive Publication Date: 2020-07-17
SHANDONG WOCEN POWER SUPPLY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The main purpose of this application is: to provide a series control structure, aiming to solve the problem that the current switching power supply series can not achieve independent voltage equalization, poor accuracy and ripple indicators

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  • Master-slave mode DC power supply series control structure and control method
  • Master-slave mode DC power supply series control structure and control method
  • Master-slave mode DC power supply series control structure and control method

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Embodiment Construction

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

[0030] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relationship between the components in a certain posture (as shown in the drawing). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly.

[0031] In addition, the descriptions such as "first",...

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Abstract

The invention discloses a master-slave mode DC power supply series control structure, which comprises a reference voltage Uref, an output voltage sampling Umon, an output voltage outer loop PI controller, a host controlled current source circuit, a slave controlled current source circuit, a high-voltage follower circuit, a voltage sampling proportional circuit and a voltage-sharing control circuit. According to the master-slave direct-current power supply series control method, the problem of voltage resistance of an outer loop control signal V_m is solved through the high-voltage follower circuit and the voltage-sharing control circuit, high-speed dynamic following of a slave to a host is realized, and autonomous voltage-sharing control of a series circuit is realized; and the output precision is high, ripples are low, and the dynamic performance is good.

Description

technical field [0001] The present application relates to the technical field of power electronics, and in particular to a master-slave mode DC power supply series control structure and control method. Background technique [0002] In recent years, the application of DC power supplies has become more and more extensive. Not only have the requirements for performance indicators such as accuracy and ripple become higher and higher, but the demands for DC power supplies of various voltages and power levels have also emerged in an endless stream. DC power supplies are therefore becoming more and more popular. [0003] With the development of DC power supply, a variety of system loop control methods have also been developed. The dual-loop control system consisting of an output voltage outer loop and an output current inner loop is one of the most widely used control methods. The advantage of this control method is that it has better source voltage characteristics, better load vo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/00H02M1/00
CPCH02J1/00H02M1/00H02M1/0003
Inventor 李振虎韩坤李传静
Owner SHANDONG WOCEN POWER SUPPLY EQUIP
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