A method for testing the capacity and performance of electric storage batteries
A battery pack and testing method technology, which is applied in the direction of measuring electrical variables, measuring electricity, measuring devices, etc., can solve the problems that the performance and capacity of the battery pack cannot be accurately detected, and achieve the effect of ensuring performance and saving energy.
Active Publication Date: 2018-11-02
STATE GRID CORP OF CHINA +2
View PDF5 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] In order to overcome the defects of the prior art, the present invention designs a method for testing the capacity and performance of electric battery packs, which not only meets the requirements of the checking discharge test in the electric power regulations, but also overcomes the inaccurate performance and capacity of the battery packs in the middle of the discharge cycle. detection shortcomings
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
specific Embodiment
[0015] A specific embodiment, a method for testing the capacity and performance of an electric storage battery pack, comprising the following steps:
[0016] a. First of all, according to the electric power regulations "DLT724-2000 Technical Regulations for the Operation and Maintenance of Battery DC Power Supply Units for Power Systems", the first full check discharge is performed on the battery pack containing N batteries, and the I10 current constant current is used to discharge the battery pack. When the terminal voltage drops to 1.8V×N, stop discharging to avoid damage to the battery, record and draw a complete battery pack voltage discharge curve, such as figure 1 As shown, and use the least squares algorithm to calculate the slope k of the plateau area on the battery pack voltage discharge curve;
[0017] b. Electric power regulations "DLT724-2000 Technical Regulations for the Operation and Maintenance of Battery DC Power Supply Units for Electric Power Systems" stipula...
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
A power battery pack capacity and performance test method belongs to the technical field of substation test methods. By combining short-time discharge and complete check discharge test, the requirement for check discharge in the electric rules is satisfied, and the calculated capacity and performance of a battery pack can be judged accurately and conveniently at any time through short-time discharge in the period of complete check discharge cycle. The method overcomes the defect that the capacity and performance of a battery pack in the period of discharge cycle cannot be detected though original complete check discharge test, and is enormously beneficial to ensuring the performance of battery packs in the whole life cycle and safety operation of substations. Electric energy released through short-time discharge is used to provide direct-current load power for substations, and there is no need to convert electric energy into thermal energy and consume the thermal energy just like a common discharge instrument. Time and effort are saved, and energy is saved. The method is low-carbon and environment-friendly, can be conducted frequently, and causes no unnecessary damage to battery packs.
Description
technical field [0001] The invention belongs to the technical field of testing methods for substations, and relates to a method for testing the capacity and performance of electric battery packs. Background technique [0002] In the substation, the DC power system provides DC power for control, signal, relay protection, automatic device and emergency lighting, etc., and the battery is the last safety barrier of the entire DC power system. Once a problem occurs, it will follow. If the protection fails, the switch refuses to move, the channel is interrupted, etc., the consequences will be disastrous. In recent years, major power accidents caused by battery problems have occurred from time to time, causing major economic losses. At present, for the performance test of electric power battery packs, the online voltage detection is the main method, and the annual checking discharge test is carried out according to the regulations. The online voltage testing can only reflect the v...
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): G01R31/36
CPCG01R31/385
Inventor 邢新明郭建彬贾志辉苗俊杰马延强王浩斌
Owner STATE GRID CORP OF CHINA