CN105048520B - Multi-load balance control system and method - Google Patents
Multi-load balance control system and method Download PDFInfo
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- CN105048520B CN105048520B CN201510534903.2A CN201510534903A CN105048520B CN 105048520 B CN105048520 B CN 105048520B CN 201510534903 A CN201510534903 A CN 201510534903A CN 105048520 B CN105048520 B CN 105048520B
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Abstract
The invention relates to multi-load balance control system and method. The system comprises a power distribution circuit, a load balancer and a plurality of loads, wherein the load balancer is connected to a loop of the power distribution circuit; a current transformer for detecting a main current value of the power distribution circuit in real time is arranged on a main line of the power distribution circuit; the current transformer is connected with the load balancer; the detected main current value of the power distribution circuit is conveyed to the load balancer; the plurality of loads are respectively connected with a load switch controller; and each load switch controller is connected to the load balancer through a communication line and is used for receiving a control instruction of the load balancer and opening or closing the corresponding load. According to the multi-load balance control system and method, automatic dynamic control of load current backlash can be realized, so that the utilization rate of the total capacity of the system is put into full play; the multi-load balance control system and method can adapt to different load systems; load terminal equipment does not need to be calibrated in advance; frequent starting and stopping of the load terminal equipment are completely avoided; and the multi-load balance control system and method can automatically adapt to voltage fluctuation of the system.
Description
Technical field
The invention belongs to load balance power supply technique field, and in particular to a kind of multi-load balance control system and method.
Background technology
In the power distribution circuit that a maximum current is fixed, the total current of load is the total air switch in loop by the power distribution circuit
Limit, for example：If total air switch is the specification of 63A, total load current is limited in below 63A, if certain load work(
Rate changes or the number of devices variation of access causes total current to exceed the limit value, then overcurrent protection action can occur.To prevent out
Existing this kind of phenomenon of the failure, usual artificial limitation or adjustment access the equipment sum in the power distribution circuit loop, are generally logical
Cross access load balancer to realize.By the total current of load balancer real-time monitoring power distribution circuit, if power distribution circuit
Total current is more than the first setting value, then the electrical equipment closed in 1 to n according to certain Rule of judgment, until distribution electricity
The total current on road is less than the second setting value, and the setting value of ordinary circumstance second is more than the first setting value, and its difference is called electric current return difference
D.In foreseeable application is typically changed, electric current return difference D can adopt fixed numbers.Change unpredictable answering in load
With in, electric current return difference D adopts the current value of maximum load.But both the above situation return difference all can not be adjusted, therefore system can not
Make full use of total capacity.
The content of the invention
It is an object of the invention to solve above-mentioned technical problem and provide a kind of multi-load balance control system and method.
For achieving the above object, the present invention is adopted the following technical scheme that：
A kind of multi-load balance control system, including power distribution circuit, the load balancer that is connected on power distribution circuit loop with
And multiple loads；The total road of the power distribution circuit is provided with for the current transformer of real-time detection power distribution circuit total current value, institute
State current transformer to be connected with the load balancer, the power distribution circuit total current value of detection is sent to into the load balance
Device；The plurality of load connects respectively a load switch controller, and each described load switch controller passes through order wire
The load balancer is connected to, the control instruction of load balancer described in the load switch controller real-time reception is opened
Or the corresponding load of closing.
Total road of the power distribution circuit is provided with cut-offing protecting switch.
The cut-offing protecting switch adopts air switch.
The load is Electric heater, corresponding, and the load switch controller is temperature controller.
The present invention also aims to a kind of multi-load balance control method is provided, using multi-load balance control system
System is realized, comprised the following steps:
After system electrification, the current value of each load is demarcated respectively by load balancer, while load balancer is real-time
The power distribution circuit total current value of current transformer transmission is received, and calculates its ripple current value；
Staking-out work current value, the ripple current value of current power distribution circuit that load balancer is loaded according to each, calculate
The electric current dynamic return difference value of the load of closing, and whether the total current value of real-time judge current power distribution circuit reaches setting limit value,
Then it is turned on and off by way of communication corresponding load switch controller according to default control condition corresponding negative
Carry；
Wherein, the computing formula of the electric current dynamic return difference value of the load of the closing is：
D=Ii+Di+k
Wherein, D is electric current dynamic return difference value, IiFor the staking-out work current value of the load to be resumed operation, DiFor current pass
The theoretical return difference value of the load to be resumed operation closed, k is constant.
Current power distribution circuit total current value closes a load more than the limit setting value of the power distribution circuit total current value,
Conversely, when load current dynamic return difference value D closed meets the condition of the formula, opening the load.
The present invention on the total road of power distribution circuit by being provided with for the Current Mutual Inductance of real-time detection power distribution circuit total current value
Device, the current transformer is connected with the load balancer, the power distribution circuit total current value of detection is sent to described negative
Carry balancer；The plurality of load connects respectively a load switch controller, and each described load switch controller passes through
Order wire is connected to the load balancer, effectively can realize the dynamic control to load current return difference by load balancer
System gives full play to the utilization rate of overall system capacity to be turned on and off corresponding load；Adapt to different load systems, it is not necessary to
Load terminal equipment is demarcated in advance；Frequent start-stop load terminal equipment is avoided completely；Being capable of adaptive system voltage pulsation automatically.
Description of the drawings
Fig. 1 show a kind of structural representation of multi-load balance control system provided in an embodiment of the present invention.
Specific embodiment
Below, the substantive distinguishing features and advantage of the present invention are further described with reference to example, but the present invention not office
It is limited to listed embodiment.
Refer to shown in Fig. 1, a kind of multi-load balance control system, including power distribution circuit 1, be connected on power distribution circuit loop
Load balancer 3 and multiple loads, it is as shown in Figure 1 first load 61, first load the 62, the 3rd load 63, first
The load 66 etc. of the load of load the 64, the 5th the 65, the 6th；The total road of the power distribution circuit is provided with always electric for real-time detection power distribution circuit
The current transformer 2 of flow valuve, the current transformer 2 is connected with the load balancer 3, and the power distribution circuit of detection is always electric
Flow valuve is sent to the load balancer 3；The plurality of load connects respectively a load switch controller, as shown in fig. 1
The first load switch controller 71, the first load switch controller 72, the 3rd load switch controller 73, the first load switch
Controller 74, the 5th load switch controller 75, the 6th negative load switch controller carry 76 etc., each described load switch control
Device processed is connected to the load balancer 3, load balancer described in the load switch controller real-time reception by order wire 5
Control instruction, corresponding load is turned on and off according to instruction.
Wherein, on implementing, total road of the power distribution circuit is provided with cut-offing protecting switch 4.
The cut-offing protecting switch 4 can be using air switch or air-break.
Implement, the load can be Electric heater, corresponding, and the load switch controller is temperature control
Device.
It should be noted that the load is not limited to Electric heater, or other arbitrarily needs the electricity of electricity consumption
Device equipment, such as air-conditioning equipment, television devices etc..
It should be noted that the quantity of the load is also not necessarily limited to the embodiment shown in Fig. 1, it is also possible to less or more.
Described load can be identical load equipment, or different load equipments.
The present invention effectively can realize moving load current return difference by above technical scheme by load balancer
State is controlled to be turned on and off corresponding load, to adapt to different load systems, it is not necessary to demarcate load terminal equipment in advance；
Frequent start-stop load terminal equipment is avoided completely；Being capable of adaptive system voltage pulsation automatically.
The present invention also aims to a kind of multi-load balance control method is provided, using multi-load balance control system
System is realized, comprised the following steps:
After system electrification, the current value of each load is demarcated respectively by load balancer, be designated as respectively：I1,I2,…
.In, while power distribution circuit total current value I of load balancer real-time reception current transformer transmission, and calculate its ripple current
Value di；
The staking-out work current value I that load balancer is loaded according to each1,I2,….In, current power distribution circuit ripple electricity
Flow valuve di, electric current dynamic return difference value D of each load is calculated, whether the total current value of real-time judge current power distribution circuit reaches and sets
Threshold value, is then turned on and off phase corresponding load switch controller according to default control condition by way of communication
The load answered；
Wherein, electric current dynamic return difference value D of each load meets function D=f (Ii, di)
Its specific computing formula is：
D=Ii+Di+k
Wherein, D is electric current dynamic return difference value, IiThe staking-out work electric current of the load to be resumed operation to be presently off
Value, DiThe theoretical return difference value of the load to be resumed operation to be presently off, k is constant.
It should be noted that theoretical return difference value D of the load being presently offiDistribution when referring to that this is supported on energization
One current differential of power distribution circuit total current value when circuit total current value is closed with the load, wherein k is constant, specifically may be used
To set a undulating value, the such as current value of 1A according to the fluctuation situation of electric current in actual power distribution circuit.
It should be noted that load balancer of the present invention according to decision condition by judging that in advance the needs being presently off are extensive
The electric current I of the load equipment of multiple operationi, as the basic value of dynamic return difference D, the numerical value of dynamic D is adjusted with this, so as to realize
The dynamic return difference control that load balance is powered.
Implement, current power distribution circuit total current value more than the power distribution circuit total current value limit setting value such as
During 63A, one load is closed according to default control condition by load balancer, so that current power distribution circuit total current value is low
In limit value, conversely, when electric current dynamic return difference value D of the load being presently off in detection meets the condition of the formula, opening
A corresponding load.
The present invention on the total road of power distribution circuit by being provided with for the Current Mutual Inductance of real-time detection power distribution circuit total current value
Device, the current transformer is connected with the load balancer, the power distribution circuit total current value of detection is sent to described negative
Carry balancer；The plurality of load connects respectively a load switch controller, and each described load switch controller passes through
Order wire is connected to the load balancer, receives the control instruction of the load balancer, is turned on and off corresponding load,
Effectively can be realized to the dynamic control of load current return difference to be turned on and off corresponding load by load balancer, be filled
The utilization rate of overall system capacity is waved in distribution；Adapt to different load systems, it is not necessary to demarcate load terminal equipment in advance；Keep away completely
Exempt from frequent start-stop load terminal equipment；Being capable of adaptive system voltage pulsation automatically.
Although reference be made herein to invention has been described for multiple explanatory embodiments of the invention, however, it is to be understood that
Those skilled in the art can be designed that a lot of other modification and embodiment, and these modifications and embodiment will fall in this Shen
Please be within disclosed spirit and spirit.
More specifically, in the range of disclosure, drawings and claims, can be to the group of theme composite configuration
Various modifications and improvement are carried out into part and/or layout.Except the modification that carries out to building block and/or layout and in addition to improving,
To those skilled in the art, other purposes also will be apparent.
Claims (6)
1. a kind of multi-load balance control system, it is characterised in that including power distribution circuit, the load being connected on power distribution circuit loop
Balancer and multiple loads；The total road of the power distribution circuit is provided with mutual for the electric current of real-time detection power distribution circuit total current value
Sensor, the current transformer is connected with the load balancer, the power distribution circuit total current value of detection is sent to described
Load balancer；The current value of each load is demarcated respectively by load balancer, and calculates its ripple current value；Load balance
Staking-out work current value, the ripple current value of current power distribution circuit that device is loaded according to each, calculate the electric current of the load closed
Dynamic return difference value, and whether the total current value of real-time judge current power distribution circuit reaches setting limit value, wherein, the closing it is negative
The computing formula of the electric current dynamic return difference value of load is：D=Ii+Di+k；Wherein, D is electric current dynamic return difference value, IiTo recover fortune
The staking-out work current value of capable load, DiThe theoretical return difference value of the load to be resumed operation to be presently off, k is constant；
The plurality of load connects respectively a load switch controller, and each described load switch controller is connected by order wire
To the load balancer；The control instruction of load balancer described in the load switch controller real-time reception, then basis
Default control condition is turned on and off corresponding load corresponding load switch controller by way of communication.
2. multi-load balance control system as claimed in claim 1, it is characterised in that total road of the power distribution circuit is provided with disconnected
Electric protective circuit breaker.
3. multi-load balance control system as claimed in claim 2, it is characterised in that the cut-offing protecting switch is opened using air
Close.
4. the multi-load balance control system as described in any one of claims 1 to 3, it is characterised in that the load is electric heating
Device, corresponding, the load switch controller is temperature controller.
5. a kind of multi-load balance control method, it is characterised in that balanced using multi-load described in any one of Claims 1 to 4
Control system is realized, comprised the following steps:
After system electrification, the current value of each load is demarcated respectively by load balancer, while load balancer real-time reception
The power distribution circuit total current value of current transformer transmission, and calculate its ripple current value；
Staking-out work current value, the ripple current value of current power distribution circuit that load balancer is loaded according to each, calculate and close
Load electric current dynamic return difference value, and whether the total current value of real-time judge current power distribution circuit reaches setting limit value, then
Corresponding load is turned on and off by way of communication corresponding load switch controller according to default control condition；
Wherein, the computing formula of the electric current dynamic return difference value of the load of the closing is：
D=Ii+Di+k
Wherein, D is electric current dynamic return difference value, IiFor the staking-out work current value of the load to be resumed operation, DiIt is presently off
The theoretical return difference value of the load to be resumed operation, k is constant.
6. multi-load balance control method as claimed in claim 5, it is characterised in that current power distribution circuit total current value is more than institute
The limit setting value of power distribution circuit total current value is stated, a load is closed, conversely, when the load current dynamic return difference value D symbol closed
When closing the condition of the formula, the load is opened.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510534903.2A CN105048520B (en) | 2015-08-27 | 2015-08-27 | Multi-load balance control system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510534903.2A CN105048520B (en) | 2015-08-27 | 2015-08-27 | Multi-load balance control system and method |
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| CN105048520A CN105048520A (en) | 2015-11-11 |
| CN105048520B true CN105048520B (en) | 2017-05-10 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106059286A (en) * | 2016-06-06 | 2016-10-26 | 河源市博康电子有限公司 | Power supply control method and device |
| CN108923420A (en) * | 2018-07-11 | 2018-11-30 | 佛山市众盈电子有限公司 | A kind of three power level output protection circuit methods |
| CN110134046B (en) * | 2019-05-15 | 2021-07-23 | 杭州旗捷科技有限公司 | Consumable chip and dynamic power consumption adjusting method of consumable chip |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229382A (en) * | 2010-10-15 | 2013-07-31 | Eads飞机设计有限公司 | Electrical power control system for a vehicle |
| CN203759222U (en) * | 2013-12-21 | 2014-08-06 | 芜湖国睿兆伏电子有限公司 | Control system used for charging-discharging detection of multiload power system |
| CN204835556U (en) * | 2015-08-27 | 2015-12-02 | 河北舒巢节能科技有限公司 | Many load balancing control system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005069766A (en) * | 2003-08-21 | 2005-03-17 | Cimx Kk | Measurement collecting system of electrical information |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103229382A (en) * | 2010-10-15 | 2013-07-31 | Eads飞机设计有限公司 | Electrical power control system for a vehicle |
| CN203759222U (en) * | 2013-12-21 | 2014-08-06 | 芜湖国睿兆伏电子有限公司 | Control system used for charging-discharging detection of multiload power system |
| CN204835556U (en) * | 2015-08-27 | 2015-12-02 | 河北舒巢节能科技有限公司 | Many load balancing control system |
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| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Li Yuchuan Inventor after: Zheng Tong Inventor after: Peng Yueming Inventor before: Peng Yueming Inventor before: Li Yuchuan Inventor before: Zheng Tong |
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Effective date of registration: 20160226 Address after: 050010 No. 508 Heping East Road, Hebei, Shijiazhuang 1-101, China, Changan District Applicant after: HEBEI SHUCHAO ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. Address before: 050010 No. 508 Heping East Road, Hebei, Shijiazhuang 1-101, China, Changan District Applicant before: HEBEI SHUCHAO ENERGY SAVING SCIENCE & TECHNOLOGY CO., LTD. Applicant before: Peng Yueming Applicant before: Li Yuchuan Applicant before: Zheng Tong |
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