CN112881926A - BMS high-voltage large-current charging and discharging test system - Google Patents
BMS high-voltage large-current charging and discharging test system Download PDFInfo
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- CN112881926A CN112881926A CN202110133635.9A CN202110133635A CN112881926A CN 112881926 A CN112881926 A CN 112881926A CN 202110133635 A CN202110133635 A CN 202110133635A CN 112881926 A CN112881926 A CN 112881926A
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- 238000007599 discharging Methods 0.000 title claims abstract description 21
- 238000012360 testing method Methods 0.000 title claims abstract description 20
- 238000001514 detection method Methods 0.000 abstract description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 238000010998 test method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
- G01R31/387—Determining ampere-hour charge capacity or SoC
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
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- General Physics & Mathematics (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The invention belongs to the technical field of BMS test systems, and particularly relates to a BMS high-voltage large-current charging and discharging test system which comprises an upper computer display, a BMS mainboard, a high-voltage small-current power supply, a low-voltage large-current power supply, an anode relay, a cathode relay, a Hall current sensor and an electronic load, wherein the BMS mainboard is connected and arranged at the lower end of the upper computer display, the anode relay is connected and arranged at the lower end of the BMS mainboard, the cathode relay is connected and arranged at the lower end of the anode relay, the Hall current sensor is connected and arranged at the left end of the cathode relay, the high-voltage small-current power supply is connected and arranged at the right end of the anode relay, the low-voltage large-current power supply is connected and arranged at the lower end of the high-voltage small-, Low cost, easy operation, and can be used for high-voltage detection and low-voltage large-current charge-discharge test.
Description
Technical Field
The invention relates to the technical field of BMS test systems, in particular to a BMS high-voltage large-current charging and discharging test system.
Background
Under the large background of rapid development of new energy industry, the new energy whole automobile factory has higher requirements on technical upgrading of power battery enterprises, and simultaneously has higher requirements on BMS, especially on SOC/SOP/SOH estimation and the like. The BMS is especially important for charge and discharge tests during early verification, the existing BMS charge and discharge test method needs a switching power supply which can actually provide hundreds of V and hundreds of A, the power of the single switching power supply reaches more than hundreds of KW, and the switching power supply has high technical requirements, high price and large use power.
Disclosure of Invention
The invention aims to provide a BMS high-voltage large-current charging and discharging test system to solve the problems that the conventional switching power supply in the background technology has high technical requirements, high price and high service power in the charging and discharging process.
In order to achieve the purpose, the invention provides the following technical scheme: a BMS high-voltage large-current charging and discharging test system comprises an upper computer display, a BMS mainboard, a high-voltage small-current power supply, a low-voltage large-current power supply, an anode relay, a cathode relay, a Hall current sensor and an electronic load, wherein the BMS mainboard is connected to the lower end of the upper computer display; the BMS high-voltage large-current charging and discharging test system has the following specific working principle:
(1) when the BMS needs to detect the external 650V high voltage, the switch S1 is closed, the switch S2 is opened, and the high-voltage low-current power supply supplies power;
(2) when the BMS needs 400A large current for charging and discharging, the S2 switch is closed, the S1 switch is opened, and a low-voltage large-current power supply provides charging and discharging current;
(3) when discharging, the power supply voltage is only (0-30V) due to large current, so that the equipped load only needs 15 KW.
Preferably, the voltage range of the high-voltage low-current power supply is 0-1KV, the current is 0.5A, and the power is 500W.
Preferably, the voltage range of the low-voltage large-current power supply is 0-30V, the current is 500A, and the power is 15 KW.
Compared with the prior art, the invention has the beneficial effects that:
the charge and discharge test system formed by the upper computer display, the BMS mainboard, the high-voltage low-current power supply, the low-voltage high-current power supply, the positive relay, the negative relay, the Hall current sensor and the electronic load is strong in universality, low in cost and easy to operate, and can be used for high-voltage detection and low-voltage high-current charge and discharge test.
Drawings
FIG. 1 is a block diagram illustrating the principle of the testing method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Example (b):
referring to fig. 1, the present invention provides a technical solution: a BMS high-voltage large-current charging and discharging test system comprises an upper computer display, a BMS mainboard, a high-voltage small-current power supply, a low-voltage large-current power supply, an anode relay, a cathode relay, a Hall current sensor and an electronic load, wherein the BMS mainboard is connected to the lower end of the upper computer display; the BMS high-voltage large-current charging and discharging test system has the following specific working principle:
(1) when the BMS needs to detect the external 650V high voltage, the switch S1 is closed, the switch S2 is opened, and the high-voltage low-current power supply supplies power;
(2) when the BMS needs 400A large current for charging and discharging, the S2 switch is closed, the S1 switch is opened, and a low-voltage large-current power supply provides charging and discharging current;
(3) when discharging, the power supply voltage is only (0-30V) due to large current, so that the equipped load only needs 15 KW.
The voltage range of the high-voltage low-current power supply is 0-1KV, the current is 0.5A, and the power is 500W.
The voltage range of the low-voltage large-current power supply is 0-30V, the current is 500A, and the power is 15 KW.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (3)
1. A BMS high-voltage large-current charging and discharging test system comprises an upper computer display, a BMS mainboard, a high-voltage small current power supply, a low-voltage large current power supply, an anode relay, a cathode relay, a Hall current sensor and an electronic load, and is characterized in that the BMS mainboard is connected and arranged at the lower end of the upper computer display, the anode relay is connected and arranged at the lower end of the BMS mainboard, the cathode relay is connected and arranged at the lower end of the anode relay, the Hall current sensor is connected and arranged at the left end of the cathode relay, the high-voltage small current power supply is connected and arranged at the right end of the anode relay, the low-voltage large current power supply is connected and arranged at the lower end of the high-voltage small current power supply, and the electronic load; the BMS high-voltage large-current charging and discharging test system has the following specific working principle:
when the BMS needs to detect the external 650V high voltage, the switch S1 is closed, the switch S2 is opened, and the high-voltage low-current power supply supplies power;
when the BMS needs 400A large current for charging and discharging, the S2 switch is closed, the S1 switch is opened, and a low-voltage large-current power supply provides charging and discharging current;
when discharging, the power supply voltage is only (0-30V) due to large current, so that the equipped load only needs 15 KW.
2. A BMS high voltage high current charge and discharge test system according to claim 1, characterized in that: the voltage range of the high-voltage low-current power supply is 0-1KV, the current is 0.5A, and the power is 500W.
3. A BMS high voltage high current charge and discharge test system according to claim 1, characterized in that: the voltage range of the low-voltage large-current power supply is 0-30V, the current is 500A, and the power is 15 KW.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133635.9A CN112881926A (en) | 2021-02-01 | 2021-02-01 | BMS high-voltage large-current charging and discharging test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110133635.9A CN112881926A (en) | 2021-02-01 | 2021-02-01 | BMS high-voltage large-current charging and discharging test system |
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| Publication Number | Publication Date |
|---|---|
| CN112881926A true CN112881926A (en) | 2021-06-01 |
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|---|---|---|---|
| CN202110133635.9A Pending CN112881926A (en) | 2021-02-01 | 2021-02-01 | BMS high-voltage large-current charging and discharging test system |
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| CN (1) | CN112881926A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707177A (en) * | 2016-11-30 | 2017-05-24 | 安徽安耐捷新能源科技有限公司 | Lithium battery charging discharging comprehensive testing cabinet |
| CN107064801A (en) * | 2016-11-30 | 2017-08-18 | 安徽安耐捷新能源科技有限公司 | A kind of charging and discharging lithium battery integration test cabinet based on sensor group |
| CN211979155U (en) * | 2020-03-18 | 2020-11-20 | 江西远东电池有限公司 | Battery system detection circuit of BMS slave machine only |
| CN112162163A (en) * | 2020-09-24 | 2021-01-01 | 南京璞骏新能源技术有限公司 | Novel high-voltage direct-current capacitor large-current testing device |
-
2021
- 2021-02-01 CN CN202110133635.9A patent/CN112881926A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707177A (en) * | 2016-11-30 | 2017-05-24 | 安徽安耐捷新能源科技有限公司 | Lithium battery charging discharging comprehensive testing cabinet |
| CN107064801A (en) * | 2016-11-30 | 2017-08-18 | 安徽安耐捷新能源科技有限公司 | A kind of charging and discharging lithium battery integration test cabinet based on sensor group |
| CN211979155U (en) * | 2020-03-18 | 2020-11-20 | 江西远东电池有限公司 | Battery system detection circuit of BMS slave machine only |
| CN112162163A (en) * | 2020-09-24 | 2021-01-01 | 南京璞骏新能源技术有限公司 | Novel high-voltage direct-current capacitor large-current testing device |
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Application publication date: 20210601 |
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