High-voltage direct-current (HVDC) system battery charging protecting circuit structure
A charging protection and system battery technology, applied in battery circuit devices, emergency protection circuit devices, circuit devices, etc., can solve problems such as inability to prevent high current charging, unreliable operation of battery charging circuits, etc., and achieve stable and reliable circuits and control principles simple effect
Active Publication Date: 2012-06-13
HANGZHOU ZHONGHEN ELECTRIC CO LTD +1
View PDF0 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] In order to overcome the disadvantages of unreliable operation of the battery charging circuit in the prior art DC system and the inability to prevent high-current charging, the purpose of the present invention is to provide a battery charging protection circuit structure that can effectively prevent battery charging from overcurrent
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
[0012] Below in conjunction with accompanying drawing, specific embodiment of the present invention is described in further detail:
[0013] Such as figure 1 The battery charging protection circuit structure of the high-voltage DC system shown in the present invention changes the single busbar working mode of the current high-voltage direct current (referred to as HVDC) system to separate the output busbar of the rectifier module, increases the battery charging protection circuit, and has a charging busbar and a load busbar. Design the circuit.
[0014] The charging protection circuit includes a diode (D1), a contactor (K1), a shunt (C1), a controller), a load (L1), a fuse (F1), a battery pack (B1), and a load bus (Load Bus) , Battery Bus (Battery Bus) and bus negative (Bus-).
[0015] The contactor includes coil 1 pin, coil 2 pin, the third contact and the fourth contact, the cathode of the diode (D1) and the fourth contact of the contactor (K1) are connected to the load bu...
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 relates to a high-voltage direct-current (HVDC) system battery charging protecting circuit structure, belonging to the technical field of the HVDC system. The HVDC system battery charging protecting circuit structure comprises a rectifying module, a battery pack and a load. The output buses of the rectifying module are divided into a battery bus and a load bus; the battery bus and the load bus are additionally provided with a charging protecting circuit which comprises a diode, a contactor, a current divider, a controller and a fuse; the contactor comprises a coil pin 1, a coil pin 2, a third contact point and a fourth contact point; the cathode of the diode and the fourth contact point of the contactor are connected with the load bus; one end of the load is connected with the load bus, and the other end is connected with the negative terminal of a direct-current bus; the anode of the diode and the third contact point of the contactor are connected with the battery bus; the battery bus is connected with the anode of the battery bus by the current divider and the fuse; the cathode of a battery is connected with the negative terminal of the battery bus; and the coil pin 1 and the coil pin 2 of the contactor are connected with the controller. The invention provides an HVDC dual bus circuit structure which can work reliably and prolong the service life of the battery.
Description
technical field [0001] The invention belongs to the technical field of high-voltage direct current systems, and in particular relates to the design of busbar circuits of high-voltage direct current systems. Background technique [0002] In the prior art, the communication power supply system adopts N+1 modules to configure the number of rectifier modules, that is, add 0.1 C to the designed load current 10 The charging current calculation of the battery adopts N+1 configuration, where N is the main battery, when N≤10, one is used as a backup, and when N>10, one is used for every 10 batteries. The outputs of all rectifier modules are on the same bus, and are responsible for charging the load and the battery at the same time. When the monitor fails, the battery charging current limit will fail, and the charging module will charge the battery according to the maximum output capacity, resulting in excessive battery charging current. , thereby damaging the battery. The batter...
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): H02H7/18H02J7/34
Inventor 易国华卞良初
Owner HANGZHOU ZHONGHEN ELECTRIC CO LTD