CN1360358A - Dynamic regulation method for low-voltage protection point of accumulator - Google Patents
Dynamic regulation method for low-voltage protection point of accumulator Download PDFInfo
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- CN1360358A CN1360358A CN00127986A CN00127986A CN1360358A CN 1360358 A CN1360358 A CN 1360358A CN 00127986 A CN00127986 A CN 00127986A CN 00127986 A CN00127986 A CN 00127986A CN 1360358 A CN1360358 A CN 1360358A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention discloses a method for regulating the protection point of low voltage of accumulator dynamically. The dynamical regulation of low voltage of accumulator is realized by reading relevant value that is stored in advanced as a reference voltage value. The invention can prolong service life of accumulator group effectively so as to provide good economical benefit.
Description
The present invention relates to the communication power supply field, relate in particular to the battery management system of communication power supply and ups power etc.
Present power-supply system is typically equipped with storage battery, the back-up source with as mains failure the time.The electric energy of accumulators store is limited, and power-supply system has all that what is called under the low pressure " is descended " or the battery protection function of " cell voltage is crossed low shutdown automatically " basically.Promptly after civil power outage, along with the discharge of batteries, the reducing of battery capacity; cell voltage can descend; in order to protect battery, when accumulator battery voltage drops to certain value (piezoelectric voltage or cell voltage are crossed the low voltage of shutdown automatically under being called), cut off all or part of load.This operation voltage value is a very important parameters to batteries and even whole power-supply system.By a large amount of tests and theory analysis, the overdischarge of discovery storage battery and the setting of following piezoelectric voltage point be not as direct relation.For a same group storage battery group, under the different discharging currents, final discharging voltage is not quite similar, and final discharging voltage has directly determined time piezoelectric voltage.For example, the backup battery group of the integrated drive generator of certain 400A is 200AH, the about 42V of final discharging voltage when load is 40A (0.2C), and load is when being 20A (0.1C), final discharging voltage is about 44V, if descend piezoelectric voltage to be set to 43V, just has the battery discharge deficiency for the 40A load, for the 20A load then is overdischarge, the phenomenon of promptly so-called " low load with strong power ".Like this, under the lighter situation of user load, if following piezoelectric voltage value of setting is still the same with the following piezoelectric voltage under the heavier situation of user load, will make battery be operated in all the year round under the deep discharge state, and this state will make tenfold ground shortening actual life of battery.In actual use, following piezoelectric voltage generally is a fixed value that can be provided with (as 44V or 42V, or certain value that can have the user to be provided with).If this magnitude of voltage is provided with improper two consequences that have: the one, following piezoelectric voltage value is provided with too high, and the ability of storage battery can not reach to be given full play to, and cuts off load too early, makes electricity consumption communication system interruption duration increase, and brings loss to communication service provider; The 2nd, following piezoelectric voltage value was provided with low, caused batteries the phenomenon of overdischarge to occur, and the life-span of storage battery is shortened greatly, brought very big economic loss to the user.Parameter that general piezoelectric voltage value down provides according to communication power supply manufacturer and battery manufacturers or user's empirical value are set, but in the reality because the variation of the loading condition of communication apparatus, the variation that this value is not also being stopped.Therefore, this mode of fixedly installing of piezoelectric voltage value down can not satisfy the demand of communication apparatus load variations.
The dynamic adjustments method that the purpose of this invention is to provide a kind of storage battery low-voltage protection point, the fixing shortcoming in following piezoelectric voltage set-point to overcome storage battery in the prior art solves the following piezoelectric voltage point that exists in the prior art the improper problem of bringing is set.
For realizing goal of the invention, the method that the present invention proposes comprises:
1. determine piezoelectric voltage reference value down according to final discharging voltage and actual conditions, and be stored in the Installed System Memory;
2. sampling obtains current battery discharging current value;
3. judge whether the user manually is provided with down piezoelectric voltage, if be provided with, the reference voltage that then will be somebody's turn to do the artificial numerical value that is provided with and memory relatively, with numerical value big serve as piezoelectric voltage under the reality; If be not provided with, then according to the present load situation, the following piezoelectric voltage reference value of extracting corresponding load in the memory is actual piezoelectric voltage down as piezoelectric voltage under the reality or by the corresponding electric time conversion down that obtains;
4. sampling obtains current system direct voltage;
5. if system's direct voltage is less than piezoelectric voltage under the reality, then cut off load, carry out electronic work down.
The method of the invention compared with prior art has following progress:
1. can be according to the online loading condition of user's reality, by the following piezoelectric voltage under the definite real-time dynamicly present load situation of the intelligent monitoring unit of communication power supply.
2. when the user not quite understood battery behavior, being provided with of following piezoelectric voltage value can be finished automatically by the monitoring unit of communication power supply, also can realize the dynamic protection purpose of storage battery for unattended communication power supply.
3. can regulate piezoelectric voltage down according to loading condition, avoid the not enough situation of discharge.Prolong power-on time most possibly,, avoided the situation of overdischarge simultaneously, prolong storage battery useful life, save user's equipment investment for the user brings repayment the most with high investment.
The invention will be further described below in conjunction with drawings and Examples;
Fig. 1 is the flow chart of the method for the invention.
In Fig. 1, specifically described the flow process of method proposed by the invention:
According to piezoelectric voltage reference value under final discharging voltage and the actual conditions decision, this reference value is stored in the Installed System Memory.The numerical value of final discharging voltage can draw from the product parameters that producer provides, and also can obtain the following piezoelectric voltage value under the typical discharging current by experiment, and can determine the accuracy class of this final discharging voltage according to actual needs.
Current battery discharging current value is sampled.
Artificial setting option to monitoring unit is analyzed, to judge whether the user manually is provided with down piezoelectric voltage: be not provided with if the user is artificial, according to the present load situation, the following piezoelectric voltage value of contrast storage obtains actual piezoelectric voltage down or corresponding electricity time down in real time; If the user manually is provided with down piezoelectric voltage, and this voltage is greater than the following piezoelectric voltage reference value of storage, and the following piezoelectric voltage that is provided with the user is actual piezoelectric voltage down; If the user manually is provided with down piezoelectric voltage, and this voltage less than the storage following piezoelectric voltage reference value, then with the storage following piezoelectric voltage as the electronic voltage of doing under the reality, with the protection battery;
Current system direct voltage is sampled, then system's direct voltage and following piezoelectric voltage are made comparisons,, carry out electronic work down if, then cut off load less than following piezoelectric voltage.
In sum, the inventive method online loading condition following piezoelectric voltage value of real-time regulated batteries intelligently of giving chapter and verse first, solve time piezoelectric voltage preferably and fixedly installed the communication power supply backup battery group overdischarge that is brought or the incomplete problem of discharging, in the proof load electricity consumption, prolong the useful life of batteries effectively, had good economic benefit.
Claims (1)
1, a kind of dynamic adjustments method of storage battery low-voltage protection point is characterized in that may further comprise the steps:
(1) determines piezoelectric voltage reference value down according to final discharging voltage and actual conditions, and be stored in the Installed System Memory;
(2) sampling obtains current battery discharging current value;
(3) judge whether the user manually is provided with down piezoelectric voltage, if be provided with, the reference voltage that then will be somebody's turn to do the artificial numerical value that is provided with and memory relatively, with numerical value big serve as piezoelectric voltage under the reality; If manually be not provided with, then according to the present load situation, the following piezoelectric voltage reference value of extracting corresponding load in the memory is actual piezoelectric voltage down as piezoelectric voltage under the reality or by the corresponding electric time conversion down that obtains;
(4) sampling obtains current system direct voltage;
(5), carry out electronic work down if system's direct voltage less than piezoelectric voltage under the reality, then cuts off load.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127986A CN1360358A (en) | 2000-12-20 | 2000-12-20 | Dynamic regulation method for low-voltage protection point of accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00127986A CN1360358A (en) | 2000-12-20 | 2000-12-20 | Dynamic regulation method for low-voltage protection point of accumulator |
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| Publication Number | Publication Date |
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| CN1360358A true CN1360358A (en) | 2002-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN00127986A Pending CN1360358A (en) | 2000-12-20 | 2000-12-20 | Dynamic regulation method for low-voltage protection point of accumulator |
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| CN (1) | CN1360358A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916887B (en) * | 2003-10-14 | 2013-03-20 | 布莱克和戴克公司 | Battery pack |
| CN105305524A (en) * | 2014-07-11 | 2016-02-03 | 新德科技股份有限公司 | Automatic discharge cut-off voltage point regulating circuit of battery management integrated circuit |
-
2000
- 2000-12-20 CN CN00127986A patent/CN1360358A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101916887B (en) * | 2003-10-14 | 2013-03-20 | 布莱克和戴克公司 | Battery pack |
| CN105305524A (en) * | 2014-07-11 | 2016-02-03 | 新德科技股份有限公司 | Automatic discharge cut-off voltage point regulating circuit of battery management integrated circuit |
| CN105305524B (en) * | 2014-07-11 | 2018-02-09 | 新德科技股份有限公司 | Automatic discharge cut-off voltage point regulating circuit of battery management integrated circuit |
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