A bidirectional energy interface device and its control method
An interface device and energy technology, applied in the direction of circuit devices, battery circuit devices, control/regulation systems, etc., can solve problems such as backup battery overshoot, rectified power supply does not have backup battery charging and discharging management functions, over-discharge, etc.
Active Publication Date: 2020-10-27
北京知行新能科技有限公司
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, because the current rectifier power supply does not have the management function of charging and discharging the backup battery, there are situations of overcharging and over-discharging of the backup battery.
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
[0035] Embodiments and examples of the present invention will be described in detail below with reference to the drawings.
[0036] The scope of applicability of the present invention will become apparent from the detailed description given below. It should be understood, however, that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are given for purposes of illustration only.
[0037] figure 1 A schematic structural diagram of the bidirectional energy interface device according to the present invention in use is shown. The bidirectional energy interface device includes an H-bridge power converter and a battery controller. The H-bridge power converter is mainly responsible for processing and converting input and output electric energy. The battery controller is connected to the output end of the H-bridge power converter and controls the charging of the backup battery. discharge. When in use, the input end of the H-...
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 bidirectional energy interface device and a control method thereof. The bidirectional energy interface device comprises an H-bridge power converter and a battery controller,wherein the H-bridge power converter is connected with a rectification power supply and a standby battery respectively; and the battery controller is connected with the H-bridge power converter and isconfigured to calculate a voltage difference between a DC bus voltage actual value output by the rectification power supply and an input voltage reference value, determine a first control signal by means of a first PI controller according to the voltage difference, determine an output current reference value according to the first control signal and various single battery voltages of the standbybattery, calculate a current difference between an actual output current of the H-bridge power converter and the output current reference value, determine a second control signal by means of a secondPI controller according to the current difference, negate the second control signal to obtain a control quantity, and determine pulses of the H-bridge power converter based on pulse width modulation according to the control quantity. The bidirectional energy interface device and the control method thereof are capable of automatically managing the charging and discharging processes of the standby battery.
Description
technical field [0001] The present application relates to the field of charge and discharge control of backup batteries of communication systems, and in particular to a bidirectional energy interface device and a control method thereof. Background technique [0002] The current communication system usually adopts a DC power supply system (24V, 48V, 120V, etc.), and the relevant DC power is provided by a rectified power supply inside the system. The rectified power supply converts the external mains power (usually AC220V or 380V) into DC voltage. In order to ensure the uninterrupted power supply of key equipment in the system under the condition of external mains power interruption, an energy storage backup battery system is usually installed on the DC power supply bus. However, since the current rectifier power supply does not have the management function of charging and discharging the backup battery, the backup battery may be overcharged or over-discharged. Contents of ...
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): H02J7/00H02M3/335
CPCH02J7/0013H02M3/3353H02J2207/20Y02B70/10
Inventor 孟盟牛利勇王磊戚慧源客小健马辉
Owner 北京知行新能科技有限公司