CN109194105A - Converter control method, device and system and converter - Google Patents
Converter control method, device and system and converter Download PDFInfo
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- CN109194105A CN109194105A CN201810974801.6A CN201810974801A CN109194105A CN 109194105 A CN109194105 A CN 109194105A CN 201810974801 A CN201810974801 A CN 201810974801A CN 109194105 A CN109194105 A CN 109194105A
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- busbar
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/32—Means for protecting converters other than automatic disconnection
- H02M1/327—Means for protecting converters other than automatic disconnection against abnormal temperatures
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Abstract
The invention discloses a converter control method, a device and a system and a converter, wherein the method comprises the following steps: detecting working parameters of components in the converter; judging whether the working parameters meet preset requirements or not; and when the working parameters meet the preset requirements, adjusting the current of the converter. The invention solves the problems that components in the converter in the prior art are easy to heat when the power is larger and damage the converter, and improves the operation safety of the converter.
Description
Technical field
The present invention relates to converter topology field, in particular to a kind of converter control method, device, system and
Current transformer.
Background technique
On high-power electric current transformer, rated operational current reaches 600A, generally big as conductor transmission using copper bar
Electric current.When copper bar converges connection or turning, generally it is attached using bolt.Due to the thickness of copper bar connection terminal device
All bigger with size, hardness is larger, there is the risk that connection poor contact increases contact resistance；Meanwhile unit transport or
In person's operational process, causing connection state to be deteriorated there is also vibration leads to the danger of contact resistance increase.Since current-carrying capacity is big, connect
The small increase of electric shock resistance can cause calorific value to increase, and not only cause loss in efficiency, will lead to related device under serious conditions
Burn out, generate biggish loss.
Meanwhile high-power electric and electronic switching device generates a large amount of heat at work and needs to dissipate, if temperature is excessively high
Without radiating in time, module will be also burnt out.It was protected and was controlled generally by the temperature inside monitoring modular in the past
, if temperature rise is higher than setting value, power output is limited, temperature requirement is met.Although generation and the electronic switching device of temperature
The loss power of part has direct relation, but is protected by temperature detection stagnant with postponing compared to being protected according to power loss
Property afterwards.
For the problem that component is easy fever when power is larger in current transformer in the related technology, current transformer, mesh are endangered
It is preceding not yet to propose to efficiently solve scheme.
Summary of the invention
The present invention provides a kind of converter control method, device, system and current transformers, at least to solve in the prior art
The problem of component is easy fever when power is larger in current transformer, endangers current transformer.
In order to solve the above technical problems, according to an aspect of an embodiment of the present invention, providing a kind of current transformer controlling party
Method, comprising: the running parameter of component in detection current transformer；Judge whether running parameter meets preset requirement；In running parameter
When meeting preset requirement, the electric current of current transformer is adjusted.
Further, component includes: busbar and electronic switching device.
Further, detect current transformer in component running parameter, comprising: detection inlet wire section busbar contact resistance and
Power loss；And detect the contact resistance and power loss of line segment busbar；And detect the power of electronic switching device
Loss；Wherein, busbar includes inlet wire section busbar, goes out line segment busbar.
Further, the contact resistance and power loss of inlet wire section busbar are detected, comprising: the input of acquisition inlet wire section busbar
Electric current I1, the input voltage Ua of inlet wire section busbar, inlet wire section busbar output voltage Ub；According to the input current of inlet wire section busbar
The contact electricity of inlet wire section busbar is calculated in the output voltage Ub of I1, the input voltage Ua of inlet wire section busbar and inlet wire section busbar
Hinder the power loss W1 of R1 and inlet wire section busbar.
Further, female according to the input current I1 of inlet wire section busbar, the input voltage Ua of inlet wire section busbar and inlet wire section
The output voltage Ub of row is calculated by the following formula to obtain the power damage of the contact resistance R1 of inlet wire section busbar and inlet wire section busbar
Consume W1:R1=(Ua-Ub)/I1；W1=(Ua-Ub) * I1.
Further, the contact resistance and power loss of line segment busbar are detected, comprising: acquire out the input of line segment busbar
Voltage Uc, the output voltage Ud for going out line segment busbar, the output electric current I2 for going out line segment busbar；According to the output electric current of line segment busbar out
The contact electricity of line segment busbar is calculated out in I2, the input voltage Uc for going out line segment busbar and out the output voltage Ud of line segment busbar
Hinder R2 and out the power loss W2 of line segment busbar.
Further, according to the input voltage Uc for exporting electric current I2, going out line segment busbar of line segment busbar out and out, line segment is female
The output voltage Ud of row is calculated by the following formula to obtain out the contact resistance R2 of line segment busbar and out the power damage of line segment busbar
Consume W2:R2=(Uc-Ud)/I2；W2=(Uc-Ud) * I2.
Further, detect the power loss of electronic switching device, comprising: according to the input current I1 of inlet wire section busbar and
Inlet wire general power Win is calculated in the input voltage Ua of inlet wire section busbar；According to the output electric current I2 of line segment busbar out and outlet
The output voltage Ud of section busbar, is calculated outlet general power Wout；According to inlet wire general power Win, outlet general power Wout, into
The power loss W2 of the power loss W1 of line segment busbar and out line segment busbar, is calculated the power loss of electronic switching device
Wj。
Further, according to the input voltage Ua of the input current I1 of inlet wire section busbar and inlet wire section busbar, by following
Inlet wire general power Win:Win=Ua*I1 is calculated in formula；According to the output electric current I2 of line segment busbar out and line segment busbar out
Output voltage Ud is calculated by the following formula to obtain outlet general power Wout:Wout=Ud*I2；According to inlet wire general power Win,
Outlet general power Wout, the power loss W1 of inlet wire section busbar and out the power loss W2 of line segment busbar, pass through following formula meter
Calculation obtains the power loss Wj:Wj=Win-Wout-W1-W2 of electronic switching device.
Further, judge whether running parameter meets preset requirement, comprising: judge running parameter whether meet with down toward
One of few: the contact resistance of inlet wire section busbar is greater than default Maximum Contact resistance, and the power loss of inlet wire section busbar is greater than in advance
If maximum power；The contact resistance of line segment busbar is greater than default Maximum Contact resistance out, and the power loss of line segment busbar out is big
In preset maximum power；The power loss of electronic switching device is greater than preset maximum power.
Further, the electric current of current transformer is adjusted, comprising: the electric current of current transformer is reduced, until goal-selling electric current.
Further, while adjusting the electric current of current transformer, further includes: send early warning letter to the management platform of current transformer
Breath.
Further, method further include: be saved into line segment busbar and the out historical data of the contact resistance of line segment busbar；Root
According to historical data, judges inlet wire section busbar and whether the current contact resistance of line segment busbar is abnormal out；In inlet wire section busbar, and/
Or out the current contact resistance exception of line segment busbar when, control current transformer it is out of service, and to the management platform of current transformer send
Warning information.
According to another aspect of an embodiment of the present invention, a kind of control device of converter is provided, comprising: detection module is used
The running parameter of component in detection current transformer；Judgment module, for judging whether running parameter meets preset requirement；Adjustment
Module, for adjusting the electric current of current transformer when running parameter meets preset requirement.
Further, component includes: busbar and electronic switching device；Detection module includes: first detection unit, is used for
Detect the contact resistance and power loss of inlet wire section busbar；Second detection unit, for detecting the contact resistance of line segment busbar
And power loss；Third detection unit, for detecting the power loss of electronic switching device；Wherein, busbar includes that inlet wire section is female
Row goes out line segment busbar.
Further, judgment module is also used to: judging whether running parameter meets at least one of: inlet wire section busbar
Contact resistance is greater than default Maximum Contact resistance, and the power loss of inlet wire section busbar is greater than preset maximum power；Line segment is female out
The contact resistance of row is greater than default Maximum Contact resistance, and the power loss of line segment busbar is greater than preset maximum power out；Electronics
The power loss of switching device is greater than preset maximum power.
Another aspect according to an embodiment of the present invention, provides a kind of converter control system, comprising: busbar, for passing
Send system power；Electronic switching device is connect with busbar, for controlling the on-off of electric current in current transformer；Control device, with busbar
It is connected with electronic switching device, for detecting the running parameter of busbar and electronic switching device, judges whether running parameter meets
Preset requirement adjusts the electric current of current transformer when running parameter meets preset requirement.
Further, busbar includes inlet wire section busbar, goes out line segment busbar；The running parameter of busbar includes: inlet wire section busbar
Contact resistance and power loss, the contact resistance and power loss of line segment busbar out；The running parameter packet of electronic switching device
It includes: the power loss of electronic switching device.
Further, control device includes: sampling module, and with inlet wire section busbar and out, line segment busbar is connect respectively, is used for
Acquire inlet wire section busbar and the out electrical parameter of line segment busbar；Processing module is connect with sampling module, for being determined according to electrical parameter
Inlet wire section busbar, the running parameter for going out line segment busbar and electronic switching device, and judge whether running parameter meets preset requirement；
Control module is connect with processing module, for adjusting the electric current of current transformer when running parameter meets preset requirement.
Further, control device further include: warning module, for adjust current transformer electric current while, to unsteady flow
The management platform of device sends warning information.
Further, control device further include: memory module, for being saved into the contact resistance and line segment out of line segment busbar
The historical data of the contact resistance of busbar；Control module is also used to: according to historical data, judging inlet wire section busbar and line segment is female out
Whether the current contact resistance of row abnormal, in inlet wire section busbar, and/or out the current contact resistance exception of line segment busbar when, control
Current transformer processed is out of service, and sends warning information to the management platform of current transformer.
Another aspect according to an embodiment of the present invention, provides a kind of current transformer, comprising: as above-mentioned current transformer controls dress
It sets.
Another aspect according to an embodiment of the present invention, provides a kind of computer equipment, including memory, processor and deposits
The computer program that can be run on a memory and on a processor is stored up, processor realizes such as above-mentioned current transformer when executing program
Control method.
Another aspect according to an embodiment of the present invention provides a kind of storage medium comprising computer executable instructions,
Computer executable instructions by computer processor when being executed for executing such as above-mentioned converter control method.
In the present invention, a kind of converter control method is provided, by detecting the running parameter of component in current transformer,
Judge whether running parameter meets preset requirement, when running parameter meets preset requirement, adjusts the electric current of current transformer.By upper
Method is stated, can be when the running parameter of component meet preset condition, such as when power consumption reaches maximum value, adjust current transformer
Electric current, hair caused by increasing so as to avoid the power loss of current transformer busbar and electronic switching device in unit running process
Damage of the heat to current transformer improves the safety of current transformer operation to preferably protect current transformer.
Detailed description of the invention
Fig. 1 is a kind of optional flow chart of converter control method according to an embodiment of the present invention；
Fig. 2 is the optional flow chart of another kind of converter control method according to an embodiment of the present invention；
Fig. 3 is a kind of optional structural block diagram of control device of converter according to an embodiment of the present invention；And
Fig. 4 is a kind of optional structural block diagram of converter control system according to an embodiment of the present invention.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistented with the present invention.On the contrary, they be only with it is such as appended
The example of device and method being described in detail in claims, some aspects of the invention are consistent.
Embodiment 1
A kind of converter control method is provided in the preferred embodiment of the invention 1, which can directly answer
With on various current transformers, can also be applied on other devices with converter part function, when specific implementation, Ke Yitong
Cross the side in current transformer or other devices installation software, APP or write-in current transformer or the corresponding program of other Setup Controllers
Formula is realized.Specifically, Fig. 1 shows a kind of optional flow chart of this method, as shown in Figure 1, this method includes following step
Rapid S102-S106:
S102: the running parameter of component in detection current transformer；
S104: judge whether running parameter meets preset requirement；
S106: when running parameter meets preset requirement, the electric current of current transformer is adjusted.
In the above-described embodiment, a kind of converter control method is provided, the work of component in detection current transformer is passed through
Make parameter, judge whether running parameter meets preset requirement, when running parameter meets preset requirement, adjusts the electricity of current transformer
Stream., can be when the running parameter of component meet preset condition by the above method, such as when power consumption reaches maximum value, adjust
The electric current of whole current transformer increases so as to avoid the power loss of current transformer busbar and electronic switching device in unit running process
Damage of the fever to current transformer caused by big improves the safety of current transformer operation to preferably protect current transformer.
In one preferred embodiment of the invention, component includes: busbar and electronic switching device.Detect current transformer
The running parameter of middle component, comprising: the contact resistance and power loss of detection inlet wire section busbar；And detect line segment mother
The contact resistance and power loss of row；And detect the power loss of electronic switching device；Wherein, busbar includes that inlet wire section is female
Row goes out line segment busbar.Since the electric current that high-power converter major loop passes through is very big, the contact resistance of busbar tie point slightly increases
Greatly, sharply increasing for dissipated power will be caused, bring harm to system.It is established by the circuit tie point of high current online real
When the variation of the monitoring contact resistance and loss power of electronic switching device, real-time perfoming early warning, and automatically controlling, in advance
It notifies personnel to safeguard, fever is avoided to cause the further expansion of the failures such as the scaling loss of system and loss.
In the above-described embodiment, the contact resistance and power loss of inlet wire section busbar are detected, comprising: acquisition inlet wire section is female
The input current I1 of row, the input voltage Ua of inlet wire section busbar, inlet wire section busbar output voltage Ub；According to inlet wire section busbar
Inlet wire section busbar is calculated in the output voltage Ub of input current I1, the input voltage Ua of inlet wire section busbar and inlet wire section busbar
Contact resistance R1 and inlet wire section busbar power loss W1.According to the input current I1 of inlet wire section busbar, inlet wire section busbar
The output voltage Ub of input voltage Ua and inlet wire section busbar are calculated by the following formula to obtain the contact resistance R1 of inlet wire section busbar
With power loss W1:R1=(Ua-Ub)/I1 of inlet wire section busbar；W1=(Ua-Ub) * I1.
Further, the contact resistance and power loss of line segment busbar are detected, comprising: acquire out the input of line segment busbar
Voltage Uc, the output voltage Ud for going out line segment busbar, the output electric current I2 for going out line segment busbar；According to the output electric current of line segment busbar out
The contact electricity of line segment busbar is calculated out in I2, the input voltage Uc for going out line segment busbar and out the output voltage Ud of line segment busbar
Hinder R2 and out the power loss W2 of line segment busbar.According to the input voltage for exporting electric current I2, going out line segment busbar of line segment busbar out
The output voltage Ud of Uc and out line segment busbar is calculated by the following formula to obtain out the contact resistance R2 of line segment busbar and out line segment
Power loss W2:R2=(Uc-Ud)/I2 of busbar；W2=(Uc-Ud) * I2.
In the power loss for determining inlet wire section busbar and out after the power loss of line segment busbar, electronic switching device is detected
Power loss, comprising: according to the input voltage Ua of the input current I1 of inlet wire section busbar and inlet wire section busbar, be calculated into
Line general power Win；According to the output electric current I2 of the line segment busbar out and output voltage Ud of line segment busbar out, it is total that outlet is calculated
Power Wout；According to inlet wire general power Win, outlet general power Wout, the power loss W1 of inlet wire section busbar and line segment busbar out
Power loss W2, the power loss Wj of electronic switching device is calculated.According to the input current I1 of inlet wire section busbar and into
The input voltage Ua of line segment busbar is calculated by the following formula to obtain inlet wire general power Win:Win=Ua*I1；According to line segment out
The output electric current I2 of busbar and out the output voltage Ud of line segment busbar, are calculated by the following formula to obtain outlet general power Wout:
Wout=Ud*I2；According to inlet wire general power Win, outlet general power Wout, the power loss W1 of inlet wire section busbar and out line segment is female
The power loss W2 of row is calculated by the following formula to obtain the power loss Wj:Wj=Win-Wout-W1- of electronic switching device
W2。
In presently preferred embodiment, judge whether running parameter meets preset requirement, comprising: judgement
Whether running parameter meets at least one of: the contact resistance of inlet wire section busbar is greater than default Maximum Contact resistance, and inlet wire
The power loss of section busbar is greater than preset maximum power；The contact resistance of line segment busbar is greater than default Maximum Contact resistance out, and
The power loss of line segment busbar is greater than preset maximum power out；The power loss of electronic switching device is greater than preset maximum power.
Further, the electric current of current transformer is adjusted, comprising: the electric current of current transformer is reduced, until goal-selling electric current.In addition to
The point flow of reduction and the power of inlet wire section busbar, the power and electronic cutting that go out line segment busbar can also be arranged in predetermined current
The default corresponding relationship formula for closing the power loss of device calculates the reduced magnitude of current according to preset relational expression.In adjustment unsteady flow
While the electric current of device, further includes: send warning information to the management platform of current transformer.
Preferably, this method further include: be saved into line segment busbar and the out historical data of the contact resistance of line segment busbar；Root
According to historical data, judges inlet wire section busbar and whether the current contact resistance of line segment busbar is abnormal out；In inlet wire section busbar, and/
Or out the current contact resistance exception of line segment busbar when, control current transformer it is out of service, and to the management platform of current transformer send
Warning information.
Processing module continuously monitors the voltage and current between the beginning and end of busbar connection, meter by real-time online
Calculate the contact resistance and power loss of incoming-line busbar and outgoing line busbar and the loss power of electronic switch.If loss power
Busbar circuit is then controlled up to or over threshold value reduces the electric current passed through, while warning information is sent to management system and is reminded
It is safeguarded in time.In conjunction with the historical data of record, the variation tendency and level of contact resistance are analyzed in real time.If contact resistance
It is abnormal, then stoppage protection and alert are carried out in time, realize active control.
Another converter control method is additionally provided in the preferred embodiment of the invention 1, specifically, Fig. 2 shows
A kind of optional flow chart of this method, as shown in Fig. 2, this method comprises the following steps:
Start；
Initialization；
Acquire inlet wire current: I1, acquisition inlet wire A point voltage: Ua, acquisition inlet wire B point voltage: Ub；
It calculates inlet wire section contact resistance: R1=(Ua-Ub)/I1, calculating the power consumption that inlet wire section contact resistance generates: W1=
(Ua-Ub)*I1；
The function that whether inlet wire section contact resistance R1 is greater than default Maximum Contact resistance RO, inlet wire section contact resistance generates judged
Whether consumption W1 is greater than preset maximum power W0, in R1 > RO and W1 > W0, exports warning information, limits output power；
Otherwise, line current is acquired out: I2, acquisition outlet C point voltage: Uc, acquisition outlet D point voltage: Ud；
Calculate line segment contact resistance: R2=(Uc-Ud)/I2, the power consumption for calculating the generation of line segment contact resistance: W2=
(Uc-Ud)*I2；
Judge whether line segment contact resistance R2 is greater than default Maximum Contact resistance RO, goes out the function that line segment contact resistance generates
Whether consumption W2 is greater than preset maximum power W0, in R2 > RO and W2 > W0, exports warning information, limits output power；
Otherwise, it calculates inlet wire general power: Win=Ua*I1, calculating outlet general power: Wout=Ud*I2, calculating electronic cutting
Close the loss power of device: Wj=Win-Wout-W1-W2；
Judge whether the loss power Wj of electronic switching device is greater than preset maximum power W0, when Wj > W0, output early warning letter
Breath limits output power；
Otherwise, acquisition inlet wire current: I1, acquisition inlet wire A point voltage: Ua, acquisition inlet wire B point voltage: Ub is repeated.
In the above-described embodiment, a kind of converter control method is provided, the work of component in detection current transformer is passed through
Make parameter, judge whether running parameter meets preset requirement, when running parameter meets preset requirement, adjusts the electricity of current transformer
Stream., can be when the running parameter of component meet preset condition by the above method, such as when power consumption reaches maximum value, adjust
The electric current of whole current transformer increases so as to avoid the power loss of current transformer busbar and electronic switching device in unit running process
Damage of the fever to current transformer caused by big improves the safety of current transformer operation to preferably protect current transformer.
Embodiment 2
The converter control method provided in 1 based on the above embodiment, additionally provides in the preferred embodiment of the invention 2
A kind of control device of converter, specifically, Fig. 3 show a kind of optional structural block diagram of the device, as shown in figure 3, the device
Include:
Detection module 302, for detecting the running parameter of component in current transformer；
Judgment module 304 is connect with detection module 302, for judging whether running parameter meets preset requirement；
Module 306 is adjusted, is connect with judgment module 304, for adjusting current transformer when running parameter meets preset requirement
Electric current.
In the above-described embodiment, by the running parameter of component in detection current transformer, judge whether running parameter accords with
It closes preset requirement and adjusts the electric current of current transformer when running parameter meets preset requirement.It, can be in first device by the above method
When the running parameter of part meets preset condition, such as when power consumption reaches maximum value, the electric current of current transformer is adjusted, so as to avoid change
Damage of the fever to current transformer caused by the power loss of device busbar and electronic switching device in unit running process increases is flowed,
To preferably protect current transformer, the safety of current transformer operation is improved.
Wherein, component includes: busbar and electronic switching device；Detection module includes: first detection unit, for detecting
The contact resistance and power loss of inlet wire section busbar；Second detection unit, for detecting the contact resistance and function of line segment busbar
Rate loss；Third detection unit, for detecting the power loss of electronic switching device；Wherein, busbar includes inlet wire section busbar, goes out
Line segment busbar.
Further, judgment module is also used to: judging whether running parameter meets at least one of: inlet wire section busbar
Contact resistance is greater than default Maximum Contact resistance, and the power loss of inlet wire section busbar is greater than preset maximum power；Line segment is female out
The contact resistance of row is greater than default Maximum Contact resistance, and the power loss of line segment busbar is greater than preset maximum power out；Electronics
The power loss of switching device is greater than preset maximum power.
About the device in above-described embodiment, wherein each unit, module execute the concrete mode of operation related
It is described in detail in the embodiment of this method, no detailed explanation will be given here.
Embodiment 3
A kind of converter control system is additionally provided in the preferred embodiment of the invention 3, specifically, Fig. 4 shows this and is
A kind of optional structural block diagram of system, as shown in figure 4, the system includes:
Busbar is used for conveyer system electric current；
Electronic switching device is connect with busbar, for controlling the on-off of current transformer；
Control device is connect with busbar and electronic switching device, and the work for detecting busbar and electronic switching device is joined
Number, judges whether running parameter meets preset requirement, when running parameter meets preset requirement, adjusts the electric current of current transformer.
In the above-described embodiment, by the running parameter of component in detection current transformer, judge whether running parameter accords with
It closes preset requirement and adjusts the electric current of current transformer when running parameter meets preset requirement.It, can be in first device by the above method
When the running parameter of part meets preset condition, such as when power consumption reaches maximum value, the electric current of current transformer is adjusted, so as to avoid change
Damage of the fever to current transformer caused by the power loss of device busbar and electronic switching device in unit running process increases is flowed,
To preferably protect current transformer, the safety of current transformer operation is improved.
Control device is made of sampling module, processing module, control module, memory module.Each functions of modules is as follows:
(1) sampling module is responsible for acquiring the electric current I1 of incoming-line busbar, the voltage Ua of incoming-line busbar front end and the voltage of rear end
Ub, the both end voltage Uc and Ud of outgoing line busbar, and line current I2 out.
(2) processing module is responsible for calculating inlet wire section contact resistance: R1=(Ua-Ub)/I1, calculates inlet wire section contact resistance and produces
Raw power consumption: W1=(Ua-Ub) * I1；Calculate line segment contact resistance: R2=(Uc-Ud)/I2；Calculate line segment contact resistance
The power consumption of generation: W2=(Uc-Ud) * I2.Judge whether power consumption W1 or W2 caused by contact resistance are greater than preset value W0, such as
Fruit processor detects that condition meets, then issues warning information, and limits the output power of system by control module simultaneously, reaches
To the purpose for reducing loss, protection system.
Processing module is responsible for calculating inlet wire general power: Win=Ua*I1 simultaneously；Calculate outlet general power: Wout=Ud*I2；
Calculate the loss power of electronic switching device: Wj=Win-Wout-W1-W2.Judge that the loss power Wj of electronic switching device is big
In preset value W0, then issue warning information, and simultaneously by control module limit system output power, reach reduction loss,
Protect the purpose of electronic switching device.
(3) control module is responsible for executing the processing result of processing module, executes the switch order of electronic switching tube, Yi Jixiang
Tension management platform sends warning information.
(4) memory module is responsible for recording the historical datas such as change level and the state of contact resistance value, for processing module point
Analysis judgement.If processing module judges that current contact resistance value increases exception according to historical data, forced stoppage guarantor is carried out
Shield, and alert.
Embodiment 4
A kind of current transformer is additionally provided in the preferred embodiment of the invention 4, comprising: such as the current transformer of above-described embodiment 2
Control device.
In the above-described embodiment, by the running parameter of component in detection current transformer, judge whether running parameter accords with
It closes preset requirement and adjusts the electric current of current transformer when running parameter meets preset requirement.It, can be in first device by the above method
When the running parameter of part meets preset condition, such as when power consumption reaches maximum value, the electric current of current transformer is adjusted, so as to avoid change
Damage of the fever to current transformer caused by the power loss of device busbar and electronic switching device in unit running process increases is flowed,
To preferably protect current transformer, the safety of current transformer operation is improved.
Embodiment 5
A kind of computer equipment, including memory, processor and storage are additionally provided in the preferred embodiment of the invention 5
On a memory and the computer program that can run on a processor, processor are realized when executing program such as above-described embodiment 1
Converter control method.
In the above-described embodiment, by the running parameter of component in detection current transformer, judge whether running parameter accords with
It closes preset requirement and adjusts the electric current of current transformer when running parameter meets preset requirement.It, can be in first device by the above method
When the running parameter of part meets preset condition, such as when power consumption reaches maximum value, the electric current of current transformer is adjusted, so as to avoid change
Damage of the fever to current transformer caused by the power loss of device busbar and electronic switching device in unit running process increases is flowed,
To preferably protect current transformer, the safety of current transformer operation is improved.
Embodiment 6
A kind of storage medium comprising computer executable instructions is additionally provided in the preferred embodiment of the invention 6, is counted
Calculation machine executable instruction by computer processor when being executed for executing the converter control method such as above-described embodiment 1.
In the above-described embodiment, by the running parameter of component in detection current transformer, judge whether running parameter accords with
It closes preset requirement and adjusts the electric current of current transformer when running parameter meets preset requirement.It, can be in first device by the above method
When the running parameter of part meets preset condition, such as when power consumption reaches maximum value, the electric current of current transformer is adjusted, so as to avoid change
Damage of the fever to current transformer caused by the power loss of device busbar and electronic switching device in unit running process increases is flowed,
To preferably protect current transformer, the safety of current transformer operation is improved.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
The common knowledge in the art that person's adaptive change follows general principle of the invention and do not invent including the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (24)
1. a kind of converter control method characterized by comprising
Detect the running parameter of component in the current transformer；
Judge whether the running parameter meets preset requirement；
When the running parameter meets preset requirement, the electric current of the current transformer is adjusted.
2. the method according to claim 1, wherein the component includes: busbar and electronic switching device.
3. according to the method described in claim 2, it is characterized in that, the work ginseng for detecting component in the current transformer
Number, comprising:
Detect the contact resistance and power loss of inlet wire section busbar；And
Detect the contact resistance and power loss of line segment busbar；And
Detect the power loss of the electronic switching device；
Wherein, the busbar includes the inlet wire section busbar, the line segment busbar out.
4. according to the method described in claim 3, it is characterized in that, the contact resistance and power damage of the detection inlet wire section busbar
Consumption, comprising:
Acquire the input current I1 of the inlet wire section busbar, the input voltage Ua of the inlet wire section busbar, the inlet wire section busbar
Output voltage Ub；
According to the input current I1 of the inlet wire section busbar, the input voltage Ua and the inlet wire section busbar of the inlet wire section busbar
Output voltage Ub, the contact resistance R1 of the inlet wire section busbar and the power loss W1 of the inlet wire section busbar is calculated.
5. according to the method described in claim 4, it is characterized in that, according to the input current I1 of the inlet wire section busbar, described
The output voltage Ub of the input voltage Ua of inlet wire section busbar and the inlet wire section busbar, be calculated by the following formula to obtain it is described into
The power loss W1 of the contact resistance R1 of line segment busbar and the inlet wire section busbar:
R1=(Ua-Ub)/I1；
W1=(Ua-Ub) * I1.
6. according to the method described in claim 4, it is characterized in that, the contact resistance for detecting line segment busbar and power damage
Consumption, comprising:
The acquisition input voltage Uc of line segment busbar out, the output voltage Ud of line segment busbar out, the line segment busbar out
Output electric current I2；
According to the output electric current I2 of the line segment busbar out, the input voltage Uc of line segment busbar out and the line segment busbar out
Output voltage Ud, be calculated it is described go out line segment busbar contact resistance R2 and it is described go out line segment busbar power loss W2.
7. according to the method described in claim 6, it is characterized in that, according to it is described go out line segment busbar output electric current I2, described
Out the input voltage Uc of line segment busbar and it is described go out line segment busbar output voltage Ud, be calculated by the following formula to obtain it is described go out
The power loss W2 of the contact resistance R2 of line segment busbar and the line segment busbar out:
R2=(Uc-Ud)/I2；
W2=(Uc-Ud) * I2.
8. according to the method described in claim 6, it is characterized in that, the power loss of the detection electronic switching device,
Include:
According to the input voltage Ua of the input current I1 of the inlet wire section busbar and the inlet wire section busbar, it is total that inlet wire is calculated
Power Win；
According to the output voltage Ud of the output electric current I2 of the line segment busbar out and the line segment busbar out, it is total that outlet is calculated
Power Wout；
According to the inlet wire general power Win, the outlet general power Wout, the power loss W1 of the inlet wire section busbar and described
The power loss Wj of the electronic switching device is calculated in the power loss W2 of line segment busbar out.
9. according to the method described in claim 8, it is characterized in that,
According to the input voltage Ua of the input current I1 of the inlet wire section busbar and the inlet wire section busbar, pass through following formula meter
Calculation obtains inlet wire general power Win:Win=Ua*I1；
According to the output voltage Ud of the output electric current I2 of the line segment busbar out and the line segment busbar out, pass through following formula meter
Calculation obtains outlet general power Wout:Wout=Ud*I2；
According to the inlet wire general power Win, the outlet general power Wout, the power loss W1 of the inlet wire section busbar and described
The power loss W2 of line segment busbar out is calculated by the following formula to obtain the power loss Wj:Wj=of the electronic switching device
Win-Wout-W1-W2。
10. according to the method described in claim 3, it is characterized in that, described judge whether the running parameter meets default want
It asks, comprising:
Judge whether the running parameter meets at least one of:
The contact resistance of the inlet wire section busbar is greater than default Maximum Contact resistance, and the power loss of the inlet wire section busbar is big
In preset maximum power；
The contact resistance of the line segment busbar out is greater than default Maximum Contact resistance, and the power loss of the line segment busbar out is big
In preset maximum power；
The power loss of the electronic switching device is greater than preset maximum power.
11. the method according to claim 1, wherein the electric current of the adjustment current transformer, comprising:
The electric current of the current transformer is reduced, until goal-selling electric current.
12. the method according to claim 1, wherein being gone back while the electric current of the adjustment current transformer
Include:
Warning information is sent to the management platform of the current transformer.
13. according to the method described in claim 3, it is characterized in that, the method also includes:
Save the historical data of the inlet wire section busbar and the contact resistance of line segment busbar out；
According to the historical data, judge whether the current contact resistance of the inlet wire section busbar and the line segment busbar out is different
Often；
In the inlet wire section busbar and/or the current contact resistance exception of line segment busbar out, controls the current transformer and stop
It only runs, and sends warning information to the management platform of the current transformer.
14. a kind of control device of converter characterized by comprising
Detection module, for detecting the running parameter of component in the current transformer；
Judgment module, for judging whether the running parameter meets preset requirement；
Module is adjusted, for adjusting the electric current of the current transformer when the running parameter meets preset requirement.
15. according to the method for claim 14, which is characterized in that the component includes: busbar and electronic switching device；
The detection module includes:
First detection unit, for detecting the contact resistance and power loss of inlet wire section busbar；
Second detection unit, for detecting the contact resistance and power loss of line segment busbar；
Third detection unit, for detecting the power loss of the electronic switching device；
Wherein, the busbar includes the inlet wire section busbar, the line segment busbar out.
16. according to the method for claim 15, which is characterized in that the judgment module is also used to: judging the work ginseng
Whether number meets at least one of:
The contact resistance of the inlet wire section busbar is greater than default Maximum Contact resistance, and the power loss of the inlet wire section busbar is big
In preset maximum power；
The contact resistance of the line segment busbar out is greater than default Maximum Contact resistance, and the power loss of the line segment busbar out is big
In preset maximum power；
The power loss of the electronic switching device is greater than preset maximum power.
17. a kind of converter control system characterized by comprising
Busbar is used for conveyer system electric current；
Electronic switching device is connect with the busbar, for controlling the on-off of electric current in the current transformer；
Control device is connect with the busbar and the electronic switching device, for detecting the busbar and the electronic switch
The running parameter of device, judges whether the running parameter meets preset requirement, when the running parameter meets preset requirement,
Adjust the electric current of the current transformer.
18. system according to claim 17, which is characterized in that the busbar includes inlet wire section busbar, goes out line segment busbar；
The running parameter of the busbar includes: the contact resistance and power loss of the inlet wire section busbar, and the line segment busbar out connects
Electric shock resistance and power loss；The running parameter of the electronic switching device includes: the power loss of the electronic switching device.
19. system according to claim 18, which is characterized in that the control device includes:
Sampling module is connect, for acquiring the inlet wire section busbar respectively with the inlet wire section busbar and the line segment busbar out
With the electrical parameter of the line segment busbar out；
Processing module is connect with the sampling module, for determining the inlet wire section busbar, the outlet according to the electrical parameter
The running parameter of section busbar and the electronic switching device, and judge whether the running parameter meets preset requirement；
Control module is connect with the processing module, for adjusting the unsteady flow when the running parameter meets preset requirement
The electric current of device.
20. system according to claim 17, which is characterized in that the control device further include:
Warning module, for sending early warning to the management platform of the current transformer while adjusting the electric current of the current transformer
Information.
21. system according to claim 18, which is characterized in that the control device further include:
Memory module, for saving the contact resistance of the inlet wire section busbar and the history of the contact resistance of line segment busbar out
Data；
The control module is also used to: according to the historical data, judge the inlet wire section busbar and it is described go out line segment busbar
Whether current contact resistance is abnormal, abnormal in the current contact resistance of the inlet wire section busbar and/or the line segment busbar out
When, control that the current transformer is out of service, and send warning information to the management platform of the current transformer.
22. a kind of current transformer characterized by comprising such as the described in any item control device of converter of claim 14 to 16.
23. a kind of computer equipment including memory, processor and stores the meter that can be run on a memory and on a processor
Calculation machine program, which is characterized in that the processor is realized as described in any one of claims 1 to 13 when executing described program
Converter control method.
24. a kind of storage medium comprising computer executable instructions, the computer executable instructions are by computer disposal
For executing the converter control method as described in any one of claims 1 to 13 when device executes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974801.6A CN109194105B (en) | 2018-08-24 | 2018-08-24 | Converter control method, device and system and converter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810974801.6A CN109194105B (en) | 2018-08-24 | 2018-08-24 | Converter control method, device and system and converter |
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| CN109194105B CN109194105B (en) | 2020-04-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114915025A (en) * | 2022-05-25 | 2022-08-16 | 国创能源互联网创新中心(广东)有限公司 | Fault monitoring method and device for converter equipment and charging pile |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512657A (en) * | 2002-12-26 | 2004-07-14 | 三电有限公司 | Motor control system |
| CN105846752A (en) * | 2015-01-29 | 2016-08-10 | 通用汽车环球科技运作有限责任公司 | Derating control of a power inverter module |
| CN107390019A (en) * | 2016-05-17 | 2017-11-24 | 南京捷泰电力设备有限公司 | The on-Line Monitor Device and its measurement determination methods of a kind of distribution box power consumption |
| WO2018051719A1 (en) * | 2016-09-14 | 2018-03-22 | サンデン・オートモーティブコンポーネント株式会社 | Inverter apparatus and vehicle electric compressor provided with same |
-
2018
- 2018-08-24 CN CN201810974801.6A patent/CN109194105B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1512657A (en) * | 2002-12-26 | 2004-07-14 | 三电有限公司 | Motor control system |
| CN105846752A (en) * | 2015-01-29 | 2016-08-10 | 通用汽车环球科技运作有限责任公司 | Derating control of a power inverter module |
| CN107390019A (en) * | 2016-05-17 | 2017-11-24 | 南京捷泰电力设备有限公司 | The on-Line Monitor Device and its measurement determination methods of a kind of distribution box power consumption |
| WO2018051719A1 (en) * | 2016-09-14 | 2018-03-22 | サンデン・オートモーティブコンポーネント株式会社 | Inverter apparatus and vehicle electric compressor provided with same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114915025A (en) * | 2022-05-25 | 2022-08-16 | 国创能源互联网创新中心(广东)有限公司 | Fault monitoring method and device for converter equipment and charging pile |
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| CN109194105B (en) | 2020-04-14 |
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