CN104734119A - Self-protection method of battery charger system when parallel operation charging is realized through CAN communication - Google Patents
Self-protection method of battery charger system when parallel operation charging is realized through CAN communication Download PDFInfo
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- CN104734119A CN104734119A CN201510087759.2A CN201510087759A CN104734119A CN 104734119 A CN104734119 A CN 104734119A CN 201510087759 A CN201510087759 A CN 201510087759A CN 104734119 A CN104734119 A CN 104734119A
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- charger system
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- 238000004891 communication Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000001514 detection method Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a self-protection method of a battery charger system when parallel operation charging is realized through CAN communication. The battery charger system comprises at least two battery chargers connected in parallel and adopting the form of a main machine and slave machines, data transmission between the main machine and each slave machine as well as between the slave machines is realized through CAN communication, and real-time communication is kept between the main machine and each slave machine as well as between the slave machines. When the main machine detects that communication interruption between any two battery chargers exceeds set time or detects that an external charging loop of the battery charger system is switched off by accident, the main machine sends an instruction to immediately stop work of all the battery chargers in the battery charger system to protect the safety of the whole battery charger system. The self-protection method has the advantages that when communication interruption happens in the battery charger system or the external charging loop is switched off by accident, the main machine sends an instruction to immediately stop work of all the battery chargers in the battery charger system, and therefore more serious production accident and loss are avoided.
Description
Technical field
The present invention relates to the charger field needing high-power output, refer more particularly to the self-protecting method being realized charger system when parallel operation is charged by CAN communication.
Background technology
Along with developing rapidly of new forms of energy, the use of the devices such as high capacity cell is more and more extensive.In actual applications, when the power of single charger can not meet the charging requirement of high capacity cell, the mode of multiple charger parallel connection usually can be adopted to meet its charging requirement, be commonly called as parallel operation charging.When adopting the form of multiple charger parallel connection to charge, usually one of them charger is set to main frame, all the other chargers are then from machine, main frame and respectively transmit data by CAN communication between machine, at this moment main frame should with extraneous communication again with each from machine communication, but owing to limiting by CAN protocol, communication frequency becomes very low, when this just easily causes whole charged in parallel machine systems work synchronized, net synchronization capability and dynamic characteristic are deteriorated, even communicating interrupt and lost contact time serious, traditional charged in parallel machine system can not process in time in communication lost contact or when having charger to break down, this can cause whole charged in parallel machine system generation charge fault, even permanent damages, heavy losses are caused to production.
Summary of the invention
The object of the present invention is to provide a kind of self-protecting method being realized charger system when parallel operation is charged by CAN communication.
For achieving the above object, present invention employs following technical scheme.
The self-protecting method of charger system when parallel operation is charged is realized by CAN communication, described charger system comprises: to the charger of high capacity cell charging after at least two parallel combinations, and one of them charger is main frame, all the other chargers are then from machine, main frame and respectively between machine and respectively all transmit data by CAN communication each other from machine; Be characterized in: main frame and respectively between machine and respectively all keep real-time communication each other from machine; when Host Detection exceedes setting-up time to the communicating interrupt had between any two chargers or surprisingly disconnects to charger system external charging loop when Host Detection; then main frame sends instruction and each charger in charger system is quit work immediately, to protect the safety of whole charger system.
Further, the aforesaid self-protecting method being realized charger system when parallel operation is charged by CAN communication, is characterized in: the setting-up time that described communicating interrupt exceedes is 5 seconds.
The invention has the beneficial effects as follows: adopt method of the present invention; when there is communicating interrupt in charger system or peripheral charge circuit surprisingly disconnects; then main frame sends instruction each charger in charger system is quit work immediately; to protect the safety of whole charger system, thus avoid causing larger production accident and loss.
Embodiment
Below in conjunction with specific embodiment, the invention will be further described.
The self-protecting method being realized charger system when parallel operation is charged by CAN communication of the present invention, wherein said charger system comprises: to the charger of high capacity cell charging after at least two parallel combinations, and one of them charger is main frame, all the other chargers are then from machine, main frame and respectively between machine and respectively all transmit data by CAN communication each other from machine; Be characterized in: main frame and respectively between machine and respectively all keep real-time communication each other from machine; when Host Detection exceedes setting-up time to the communicating interrupt had between any two chargers or surprisingly disconnects to charger system external charging loop when Host Detection; then main frame sends instruction and each charger in charger system is quit work immediately, to protect the safety of whole charger system.In actual production, usually the setting-up time that communicating interrupt between charger exceedes is set as 5 seconds, that is: the communicating interrupt between any two chargers was more than 5 seconds, main frame then judges that charger system breaks down, and main frame just sends instruction makes each charger in charger system quit work immediately.
Known from the above mentioned; method of the present invention is adopted in the charger system of parallel operation charging; when there is communicating interrupt in charger system or peripheral charge circuit surprisingly disconnects; then main frame sends instruction each charger in charger system is quit work immediately; to protect the safety of whole charger system, thus avoid causing larger production accident and loss.
Claims (2)
1. the self-protecting method of charger system when parallel operation is charged is realized by CAN communication, described charger system comprises: to the charger of high capacity cell charging after at least two parallel combinations, and one of them charger is main frame, all the other chargers are then from machine, main frame and respectively between machine and respectively all transmit data by CAN communication each other from machine; It is characterized in that: main frame and respectively between machine and respectively all keep real-time communication each other from machine; when Host Detection exceedes setting-up time to the communicating interrupt had between any two chargers or surprisingly disconnects to charger system external charging loop when Host Detection; then main frame sends instruction and each charger in charger system is quit work immediately, to protect the safety of whole charger system.
2. the self-protecting method being realized charger system when parallel operation is charged by CAN communication according to claim 1, is characterized in that: the setting-up time that described communicating interrupt exceedes is 5 seconds.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087759.2A CN104734119A (en) | 2015-02-26 | 2015-02-26 | Self-protection method of battery charger system when parallel operation charging is realized through CAN communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510087759.2A CN104734119A (en) | 2015-02-26 | 2015-02-26 | Self-protection method of battery charger system when parallel operation charging is realized through CAN communication |
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| CN104734119A true CN104734119A (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510087759.2A Pending CN104734119A (en) | 2015-02-26 | 2015-02-26 | Self-protection method of battery charger system when parallel operation charging is realized through CAN communication |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374935A (en) * | 2018-11-28 | 2019-02-22 | 武汉精能电子技术有限公司 | A kind of electronic load parallel operation method and system |
| CN110416639A (en) * | 2019-07-12 | 2019-11-05 | 闻泰科技(无锡)有限公司 | Intelligent battery charging system and its control method |
| CN113271223A (en) * | 2021-05-13 | 2021-08-17 | 石家庄通合电子科技股份有限公司 | Unified communication management method for charging module and terminal equipment |
| CN114204684A (en) * | 2021-12-13 | 2022-03-18 | 国网湖南省电力有限公司 | FTU with online indicating structure and control method |
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| JPH10112939A (en) * | 1996-10-07 | 1998-04-28 | Nec Corp | Power switching circuit |
| CN1489256A (en) * | 2002-10-10 | 2004-04-14 | 鸿富锦精密工业（深圳）有限公司 | UPS backup system and method |
| CN104065148A (en) * | 2014-07-08 | 2014-09-24 | 深圳市英可瑞科技开发有限公司 | Electric vehicle charging system and charging method |
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2015
- 2015-02-26 CN CN201510087759.2A patent/CN104734119A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10112939A (en) * | 1996-10-07 | 1998-04-28 | Nec Corp | Power switching circuit |
| CN1489256A (en) * | 2002-10-10 | 2004-04-14 | 鸿富锦精密工业（深圳）有限公司 | UPS backup system and method |
| CN104065148A (en) * | 2014-07-08 | 2014-09-24 | 深圳市英可瑞科技开发有限公司 | Electric vehicle charging system and charging method |
Non-Patent Citations (1)
| Title |
|---|
| 陈华金: "大功率充电机充电性能优化策略研究", 《中国优秀硕士学位论文全文数据库》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109374935A (en) * | 2018-11-28 | 2019-02-22 | 武汉精能电子技术有限公司 | A kind of electronic load parallel operation method and system |
| CN110416639A (en) * | 2019-07-12 | 2019-11-05 | 闻泰科技(无锡)有限公司 | Intelligent battery charging system and its control method |
| CN113271223A (en) * | 2021-05-13 | 2021-08-17 | 石家庄通合电子科技股份有限公司 | Unified communication management method for charging module and terminal equipment |
| CN113271223B (en) * | 2021-05-13 | 2022-06-21 | 石家庄通合电子科技股份有限公司 | Unified communication management method for charging module and terminal equipment |
| CN114204684A (en) * | 2021-12-13 | 2022-03-18 | 国网湖南省电力有限公司 | FTU with online indicating structure and control method |
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Application publication date: 20150624 |
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| RJ01 | Rejection of invention patent application after publication |