CN106340947A - Dynamic distribution method of multi-load parallel power supply module on the basis of weight comparison - Google Patents
Dynamic distribution method of multi-load parallel power supply module on the basis of weight comparison Download PDFInfo
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- CN106340947A CN106340947A CN201610797598.0A CN201610797598A CN106340947A CN 106340947 A CN106340947 A CN 106340947A CN 201610797598 A CN201610797598 A CN 201610797598A CN 106340947 A CN106340947 A CN 106340947A
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- load
- power module
- charged
- weights
- allocative decision
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
Abstract
The invention discloses a dynamic distribution method of a multi-load parallel power supply module on the basis of weight comparison. According to the method, charged coefficients SOC of multiple loads area acquired by a system, the total quantity of power supply modules is acquired by the system, the quantity of presently-utilized power supply modules is acquired by the system, distribution schemes are provided by the system according to the total quantity of the power supply modules, the quantity of the distribution schemes is equal to the total quantity of the power supply modules subtracting 1, a first weight of charging loads and a second weight of to-be-charged loads are determined by the system according to the the quantity of power supply modules distributed to the charging loads, the total quantity of the power supply modules and the charged coefficients SOC of the multiple loads, a comparison weight is determined according to the first weight and the second weight, and a final distribution scheme is determined according to the comparison weight. Through the method, on the condition that influence on the charging time of the charging loads is small, utilization efficiency of the power supply modules is effectively improved while charging demands of the to-be-charged loads are considered.
Description
Technical field
The present invention relates to power technique fields, refer in particular to a kind of move based on the multi load parallel electric source module that weights compare
State distribution method.
Background technology
During the nearly last ten years, with the development of power battery technology, electric automobile is preliminary in the developed country such as American-European, Japanese
Formation scale market.China it is also proposed the year two thousand twenty electric automobile and (includes hybrid vehicle, pure electric automobile, fuel electricity
Pond automobile etc.) recoverable amount reaches the development plan of 5,000,000.With the fast development of new-energy automobile industry, direct current quickly fills
Some problems of electric equipment progressively expose out, particularly when multi load uses, each used work of load
In the assignment problem of the quantity making power module, conventional allocation algorithm is excessively simple, leads to occur in that power module using effect
Rate is low, multi load when the low problem of charge efficiency.
Current power module distribution method simply considers power module itself fan-out capability, preferentially fills in conjunction with arrive first
The method of electricity, is charged to electric automobile, without current in view of the maximal efficiency utilization of power module, electric automobile
The composite factors such as charge requirement.
China Patent Publication No. cn102347633a, publication date on 2 8th, 2012, entitled " a kind of power module and electricity
A kind of power module and power-supply system is disclosed, wherein power module is as the first power module in the patent of invention of origin system "
It is applied in computing system, computing system also includes second source module, the first power module and second source module-cascade, the
One power module is in power supply state, and second source module is closed, and the first power module includes: load detecting list
Unit, for obtaining the load of computing system, produces a load detecting value；Judging unit, is connected with load detecting unit, is used for
Produce one according to load detecting value and judge information, to judge whether to need to open second source module；Switching on and shutting down unit, for working as
Judgement information represent need open second source module when, send starting-up signal pson to second source module；Wherein, the second electricity
Source module response starting-up signal is realized opening.This invention can realize the first power module and the switching of second source module, no
It is in place of foot, the charge requirement that the maximal efficiency that this invention does not still account for power module utilizes, electric automobile is current
Etc. factor, power module service efficiency is low, multi load when charge efficiency low.
Content of the invention
The purpose of the present invention is to overcome in prior art in the case of multi load, and power module service efficiency is low, fill
The shortcoming of poor electrical efficiency, provides a kind of multi load parallel electric source module dynamic allocation method comparing based on weights.
The purpose of the present invention is to be achieved by following technical proposals:
A kind of multi load parallel electric source module dynamic allocation method being compared based on weights, based on multi load parallel connection power supply mould
Block dynamic allocation system, comprises the following steps:
Step 1, system obtains the charged coefficient soc of multiple loads, and system obtains the quantity of total power module, and system obtains
Take the quantity of the power module being being currently used；
Step 2, system provides allocative decision according to the quantity of total power module, and the quantity of allocative decision is total power supply
The quantity of module subtracts 1；
Step 3, in allocative decision, to distribute to the power module of the load charged less than bearing of charging
The power module carrying actual demand is principle, if the power module distributing to the load charged exceedes the load charged
The power module of actual demand, then this allocative decision give up；If the power module distributing to the load charged is less than
The power module of the load actual demand charged, then this allocative decision reservation；
Step 4, in the allocative decision retaining, system is according to the number of the power module distributing to the load charged
Amount, the charged coefficient soc of total quantity of power module and multiple load, determine the first weights of load charging and
Prepare the second weights of the load of charging, determined according to the first weights and the second weights and compare weights；
Step 5, system determines the soc of load the charging and soc of the load preparing to charge, if soc difference is at 1 times
Or when more than 1 times, take the component formula case comparing weights minimum to be final allocative decision in withed a hook at the end allocative decision, if
When soc difference is less than 1 times, the component formula case comparing maximum weight is taken to be final allocative decision in staying allocative decision.
This programme to be carried out with the current energy state loading, charge requirement, the service condition of power module etc. for factor
Weight computing compares, under the charging interval minor impact to the load charged, with respect to the load preparing charging
Charge requirement, and effectively improve the utilization ratio of power module.
As a kind of preferred version, the first described weights, the specific decision method of the second weights are in step 4: set
The charged coefficient of the load that the charged coefficient of the fixed load charged is soc1, preparation is charged is soc2, total power module
Quantity be n, the module number of the current occupancy of the load charged is n1, then the weights of the load charged areThe weights of load preparing to charge areRelatively weights are △ k=abs (k1-k2),
N1 value 1....... (n-1), then obtained comparison weights have n-1.
As a kind of preferred version, after determining final allocative decision, power module carries out electric current output, if loading demand
Maximum current be less than the available total maximum output current of power module of corresponding load, then with the maximum current of demand
Divided by the actual output current as each power module for the quantity that power module is used；If the maximum current of loading demand is more than
The available total maximum output current of power module of corresponding load, then with the available maximum output current of power module
Actual output current for each power module.
The invention has the beneficial effects as follows, with the current energy state of load, charge requirement, service condition of power module etc.
To carry out weight computing for factor to compare, under the charging interval minor impact to the load charged, with respect to preparation
The charge requirement of the load charged, and effectively improve the utilization ratio of power module.
Brief description
Fig. 1 is a kind of flow chart of the present invention.
Specific embodiment
With reference to the accompanying drawings and examples the present invention is further described.
Embodiment: a kind of multi load parallel electric source module dynamic allocation method being compared based on weights, as shown in figure 1, bag
Include following steps:
Step 1, system obtains the charged coefficient soc of multiple loads, and system obtains the quantity of total power module, and system obtains
Take the quantity of the power module being being currently used；
Step 2, system provides allocative decision according to the quantity of total power module, and the quantity of allocative decision is total power supply
The quantity of module subtracts 1；
Step 3, in allocative decision, to distribute to the power module of the load charged less than bearing of charging
The power module carrying actual demand is principle, if the power module distributing to the load charged exceedes the load charged
The power module of actual demand, then this allocative decision give up；If the power module distributing to the load charged is less than
The power module of the load actual demand charged, then this allocative decision reservation；
Step 4, in the allocative decision retaining, system is according to the number of the power module distributing to the load charged
Amount, the charged coefficient soc of total quantity multiple loads of power module, determine the first weights of load charging and
Prepare the second weights of the load of charging, determined according to the first weights and the second weights and compare weights；
First weights, the specific decision method of the second weights are: set the charged coefficient of the load charged as soc1,
The charged coefficient preparing the load of charging is soc2, the quantity of total power module is n, and the load charged currently takies
Module number be n1, then the weights of the load charged areThe weights of load preparing to charge areRelatively weights are △ k=abs (k1-k2), n1 value 1....... (n-1), then obtained comparison
Weights have n-1；
Step 5, system determines the soc of load the charging and soc of the load preparing to charge, if soc difference is at 1 times
Or when more than 1 times, take the component formula case comparing weights minimum to be final allocative decision in withed a hook at the end allocative decision, if
When soc difference is less than 1 times, the component formula case comparing maximum weight is taken to be final allocative decision in staying allocative decision.
After determining final allocative decision, power module carries out electric current output, if the maximum current of loading demand is less than right
The available total maximum output current of power module that should load, then with the maximum current of demand divided by using power module
Quantity as each power module actual output current；If the maximum current of loading demand is more than the power supply mould of corresponding load
The available total maximum output current of block, then be each power module with the available maximum output current of power module
Actual output current.
Have as a example 4 power modules by live charger, each power module maximum output ability is 35a, loads 2 positive standards
Standby charging, load 1 is being charged.
Situation 1: the charged coefficient soc of load 2 is 0.2, the charged coefficient soc of load 1 is 0.8；
When load 2 starts to charge up, load 1 current needs are 50a；Loading 2 current needs is 110a.
Load 1 has taken 2 power modules, and 2 demands that load are 3 power modules；
Under new and old algorithm, the quantity allotted of power module:
The method of salary distribution 3 is non-optional allocative decision, is eliminated below
Under two kinds of algorithms, the calculating of weights coefficient and comparing:
By under existing allocation algorithm, the scheme of selection is only the method for salary distribution 1；By the method for salary distribution of the present invention, optional side
In case, △ k value minimum for the method for salary distribution 2
Under both methods of salary distribution, total output current of charger is:
| Load 2 input currents | Load 1 input current | The total output current of charger | |
| The method of salary distribution 1 | 70 | 50 | 120a |
| The method of salary distribution 2 | 105 | 35 | 140a |
Situation 2:
The charged coefficient soc of load 2 is 0.6, the charged coefficient soc of load 1 is 0.8；
When load 2 starts to charge up, load 1 current needs are 50a；Loading 2 current needs is 110a.
Now, load 1 has taken 2 power modules, and 2 demands that load are 3 power modules；
Under new and old algorithm, the quantity allotted of power module:
The method of salary distribution 3 is non-optional allocative decision, is eliminated below
Under two kinds of algorithms, the calculating of weights coefficient and comparing:
By under old allocation algorithm, the scheme of selection is only the method for salary distribution 1；By the new method of salary distribution, in alternative,
△ k value maximum for the method for salary distribution 2
Under both methods of salary distribution, total output current of charger is:
| Load 2 input currents | Load 1 input current | The total output current of charger | |
| The method of salary distribution 1 | 70 | 50 | 120a |
| The method of salary distribution 2 | 105 | 35 | 140a |
From the foregoing, it will be observed that with the difference size of charged coefficient soc as prerequisite, considering the current distribution of power module
Present situation, it is possible to achieve soc is less, current needs are larger, and the charging current of acquisition is also larger, and soc is larger, current needs
Less, the charging current that it obtains is also less, but not unconfined reduction, thus optimizing charger with respect to equipment
Work efficiency；And, after new allocation algorithm, total output current of charger all working power module is more than old
Allocation algorithm, the work efficiency of power module is also improved.
Claims (3)
1. a kind of multi load parallel electric source module dynamic allocation method being compared based on weights, based on multi load parallel electric source module
Dynamic allocation system, is characterized in that, comprises the following steps:
Step 1, system obtains the electrostrictive coefficient soc of multiple loads, and system obtains the quantity of total power module, and system obtains current
The quantity of the power module being currently in use；
Step 2, system provides allocative decision according to the quantity of total power module, and the quantity of allocative decision is total power module
Quantity subtract 1；
Step 3, in allocative decision, is less than, with the power module distributing to the load charged, the load charged real
The power module of border demand is principle, if the power module distributing to the load charged exceedes the load reality charging
The power module of demand, then this allocative decision give up；If the power module distributing to the load charged is less than
The power module of the load actual demand charged, then this allocative decision reservation；
Step 4, in the allocative decision retaining, system according to the quantity of the power module distributing to the load charged, always
The quantity of power module and multiple load charged coefficient soc, determine the first weights of load of charging and preparation
Second weights of the load charged, determine according to the first weights and the second weights and compare weights；
Step 5, system determines the soc of load the charging and soc of the load preparing to charge, if soc difference is at 1 times or 1
When more than times, the component formula case comparing weights minimum is taken to be final allocative decision in withed a hook at the end allocative decision, if soc
When difference is less than 1 times, the component formula case comparing maximum weight is taken to be final allocative decision in staying allocative decision.
2. a kind of multi load parallel electric source module dynamic allocation method being compared based on weights according to claim 1, its
Feature is that the first described weights, the specific decision method of the second weights are in step 4: sets the load charged
The charged coefficient of the load that charged coefficient is soc1, preparation is charged is soc2, the quantity of total power module is n, charges
The module number of the current occupancy of load be n1, then the weights of the load charged arePrepare to charge
The weights of load beRelatively weights are △ k=abs (k1-k2), n1 value 1....... (n-1),
Then obtained comparison weights have n-1.
3. a kind of multi load parallel electric source module dynamic allocation method being compared based on weights according to claim 1 and 2,
It is characterized in that, after determining final allocative decision, power module carries out electric current output, if the maximum current of loading demand is less than right
The available total maximum output current of power module that should load, then with the maximum current of demand divided by using power module
Quantity as each power module actual output current；If the maximum current of loading demand is more than the power supply mould of corresponding load
The available total maximum output current of block, then be each power module with the available maximum output current of power module
Actual output current.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437544B1 (en) * | 2001-12-20 | 2002-08-20 | Tai-Her Yang | Serial stage power supply combination for emergency auxiliary charging apparatus |
| CN201750160U (en) * | 2010-04-14 | 2011-02-16 | 武汉日新科技照明有限公司 | Solar energy power supply grid-connected integrated device |
| CN201910634U (en) * | 2010-12-24 | 2011-07-27 | 深圳市华通电气设备有限公司 | Intelligent distribution screen of subway weak-current integrated UPS (Uninterruptible Power Supply) system |
| CN102842936A (en) * | 2012-09-20 | 2012-12-26 | 慈松 | Distributed battery power supply device and method |
| CN105281379A (en) * | 2014-06-06 | 2016-01-27 | 天硕电网科技股份有限公司 | Secondary battery charging power supply method and charging equipment |
-
2016
- 2016-08-31 CN CN201610797598.0A patent/CN106340947B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6437544B1 (en) * | 2001-12-20 | 2002-08-20 | Tai-Her Yang | Serial stage power supply combination for emergency auxiliary charging apparatus |
| CN201750160U (en) * | 2010-04-14 | 2011-02-16 | 武汉日新科技照明有限公司 | Solar energy power supply grid-connected integrated device |
| CN201910634U (en) * | 2010-12-24 | 2011-07-27 | 深圳市华通电气设备有限公司 | Intelligent distribution screen of subway weak-current integrated UPS (Uninterruptible Power Supply) system |
| CN102842936A (en) * | 2012-09-20 | 2012-12-26 | 慈松 | Distributed battery power supply device and method |
| CN105281379A (en) * | 2014-06-06 | 2016-01-27 | 天硕电网科技股份有限公司 | Secondary battery charging power supply method and charging equipment |
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