CN104883111B - Motor control method, device and electric system - Google Patents
Motor control method, device and electric system Download PDFInfo
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- CN104883111B CN104883111B CN201510364012.7A CN201510364012A CN104883111B CN 104883111 B CN104883111 B CN 104883111B CN 201510364012 A CN201510364012 A CN 201510364012A CN 104883111 B CN104883111 B CN 104883111B
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- 238000000034 method Methods 0.000 title claims abstract description 35
- 239000003990 capacitor Substances 0.000 claims abstract description 107
- 230000005611 electricity Effects 0.000 claims description 21
- 238000001514 detection method Methods 0.000 claims description 9
- 238000004804 winding Methods 0.000 abstract description 11
- 238000005516 engineering process Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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Abstract
The present invention discloses motor control method, device and electric system.Methods described includes：Detect motor or the input voltage of electrical equipment complete machine；When the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the capacitor line of motor；The interval minimum value of the predeterminated voltage is the first predeterminated voltage, and maximum is the second predeterminated voltage；When the input voltage is less than the first predeterminated voltage, first electric capacity and the second electric capacity is controlled to access the capacitor line of the motor；Second electric capacity is in parallel with first electric capacity；When the input voltage is higher than the second predeterminated voltage, first electric capacity and the 3rd electric capacity is controlled to access the capacitor line of the motor；3rd electric capacity is connected with first electric capacity.Using the technical scheme that provides of the present invention, can ensure motor be applicable voltage range it is larger on the premise of, effectively solve motor winding temperature rise and the problem of motor speed characteristic is poor under low pressure under high pressure.
Description
Technical field
The present invention relates to control technology field, more particularly to motor control method, device and electric system.
Background technology
Motor is as the basic element of character of electrical equipment, and its runnability directly decides the operation conditions of electrical equipment.
At present, the different line voltage of correspondence, machine winding is provided with least two different rotating speed shelves interface circuits, electricity
Machine winding accesses corresponding rotating speed shelves interface circuit by the relay on different rotating speeds shelves interface circuit.In the prior art, one
As need to be designed to that third gear motor could realize that motor is run under environment under low pressure and hyperbaric environment, i.e. the voltage range in setting
Interior operation.But, motor, which only changes gear, can not solve winding temperature rise and under low pressure motor speed under high pressure
The problem of characteristic is poor, therefore, prior art need to carry out each gear single grade of targeted design, can so cause applicable electricity
Scope is pressed to be limited.
Therefore, in the prior art, it is impossible to ensure motor be applicable voltage range it is larger on the premise of, solve under high pressure around
The problem of rise of group temperature and under low pressure motor speed characteristic difference.
The content of the invention
In view of this, the invention provides a kind of motor control method, device and electric system, it can be fitted ensureing motor
With voltage range it is larger on the premise of, effectively solve motor winding temperature rise and motor speed is special under low pressure under high pressure
Property difference the problem of.
To achieve the above object, the present invention provides following technical scheme：
A kind of motor control method, including：
Detect motor or the input voltage of electrical equipment complete machine；
When the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the capacitor line of motor；It is described pre-
If the minimum value of voltage range is the first predeterminated voltage, maximum is the second predeterminated voltage；
When the input voltage is less than the first predeterminated voltage, first electric capacity and the second electric capacity is controlled to access the electricity
The capacitor line of machine；Second electric capacity is in parallel with first electric capacity；
When the input voltage is higher than the second predeterminated voltage, first electric capacity and the 3rd electric capacity is controlled to access the electricity
The capacitor line of machine；3rd electric capacity is connected with first electric capacity.
It is preferred that, described when the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the electricity of motor
Hold line, including：
When the input voltage is located at predeterminated voltage interval, control the first relay closure connects first electric capacity
Enter the capacitor line of the motor, first relay is connected with first electric capacity.
It is preferred that, it is described when the input voltage is less than the first predeterminated voltage, control first electric capacity and the second electricity
Hold the capacitor line of the access motor, including：
When the input voltage is less than the first predeterminated voltage, the first relay of control and the second relay are respectively closed,
First electric capacity and second electric capacity is set all to access the capacitor line of the motor；First relay and the described first electricity
Hold series connection, second relay is connected with second electric capacity.
It is preferred that, it is described when the input voltage is higher than the second predeterminated voltage, control first electric capacity and the 3rd electricity
Hold the capacitor line of the access motor, including：
When the input voltage is higher than the second predeterminated voltage, the first relay of control disconnects, the 3rd relay closure, makes
First electric capacity and the 3rd electric capacity all access the capacitor line of the motor；First relay and first electric capacity
Series connection, the 3rd relay is connected with the 3rd electric capacity.
It is preferred that, described when the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the electricity of motor
Hold line, including：
When the input voltage is located at predeterminated voltage interval, the normally-closed contact of the 4th relay of control maintains closed form
State, makes first electric capacity access the capacitor line of the motor, normally-closed contact and first electric capacity of the 4th relay
Series connection.
It is preferred that, it is described when the input voltage is less than the first predeterminated voltage, control first electric capacity and the second electricity
Hold the capacitor line of the access motor, including：
When the input voltage is less than the first predeterminated voltage, the normally-closed contact of the 4th relay is controlled to maintain closure
State, makes first electric capacity access the capacitor line of the motor, and control the 5th relay closure accesses second electric capacity
The capacitor line of the motor；The normally-closed contact of 4th relay is connected with first electric capacity, the 5th relay with
The second electric capacity series connection.
It is preferred that, it is described when the input voltage is higher than the second predeterminated voltage, control first electric capacity and the 3rd electricity
Hold the capacitor line of the access motor, including：
When the input voltage is higher than the second predeterminated voltage, the normally-closed contact of the 4th relay is controlled to disconnect, often
The closing of contact is opened, first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；4th relay
Normally-closed contact connected with first electric capacity, the normally opened contact of the 4th relay is connected with the 3rd electric capacity.
A kind of motor control assembly, including：
Detection unit, the input voltage for detecting motor or electrical equipment complete machine；
First control unit, for when the input voltage is located at predeterminated voltage interval, control the first electric capacity access to be electric
The capacitor line of machine；The interval minimum value of the predeterminated voltage is the first predeterminated voltage, and maximum is the second predeterminated voltage；
Second control unit, for when the input voltage is less than the first predeterminated voltage, control first electric capacity and
Second electric capacity accesses the capacitor line of the motor；Second electric capacity is in parallel with first electric capacity；
3rd control unit, for when the input voltage is higher than the second predeterminated voltage, control first electric capacity and
3rd electric capacity accesses the capacitor line of the motor；3rd electric capacity is connected with first electric capacity.
It is preferred that, first control unit includes：
First control subelement, for when the input voltage is located at predeterminated voltage interval, the first relay of control to be closed
Close, first electric capacity is accessed the capacitor line of the motor, first relay is connected with first electric capacity.
It is preferred that, second control unit includes：
Second control subelement, for when the input voltage be less than the first predeterminated voltage when, control the first relay and
Second relay is respectively closed, and first electric capacity and second electric capacity is all accessed the capacitor line of the motor；Described
One relay is connected with first electric capacity, and second relay is connected with second electric capacity.
It is preferred that, the 3rd control unit includes：
3rd control subelement, for when the input voltage is higher than the second predeterminated voltage, the first relay of control to break
Open, the 3rd relay is closed, and first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；Described first
Relay is connected with first electric capacity, and the 3rd relay is connected with the 3rd electric capacity.
It is preferred that, first control unit includes：
4th control subelement, for when the input voltage is located at predeterminated voltage interval, controlling the 4th relay
Normally-closed contact maintains closure state, first electric capacity is accessed the capacitor line of the motor, the 4th relay it is normally closed
Connected with first electric capacity contact.
It is preferred that, second control unit includes：
5th control subelement, for when the input voltage is less than the first predeterminated voltage, controlling the 4th relay
The normally-closed contact of device maintains closure state, first electric capacity is accessed the capacitor line of the motor, and the 5th relay of control is closed
Close, second electric capacity is accessed the capacitor line of the motor；The normally-closed contact of 4th relay and first electric capacity
Series connection, the 5th relay is connected with second electric capacity.
It is preferred that, the 3rd control unit includes：
6th control subelement, for when the input voltage is higher than the second predeterminated voltage, controlling the 4th relay
The normally-closed contact of device disconnects, normally opened contact closure, first electric capacity and the 3rd electric capacity is all accessed the electricity of the motor
Hold line；The normally-closed contact of 4th relay is connected with first electric capacity, the normally opened contact of the 4th relay and institute
State the series connection of the 3rd electric capacity.
A kind of electric system, including：
Motor, the capacitor control circuit being connected with the motor, the controller being connected with the capacitor control circuit；
The capacitor control circuit is connected with the capacitor line of the motor, including the first electric capacity, the second electric capacity and the 3rd electric capacity；
The controller is used for：Motor or the input voltage of electrical equipment complete machine are detected, when the input voltage is located at default electricity
When between nip, the first electric capacity of control accesses the capacitor line of motor, and the interval minimum value of the predeterminated voltage is the first predeterminated voltage,
Maximum is the second predeterminated voltage, when the input voltage is less than the first predeterminated voltage, controls first electric capacity and second
Electric capacity accesses the capacitor line of the motor, and second electric capacity is in parallel with first electric capacity, when the input voltage is higher than the
During two predeterminated voltages, first electric capacity and the 3rd electric capacity is controlled to access the capacitor line of the motor, the 3rd electric capacity and institute
State the series connection of the first electric capacity.
Understand that compared with prior art, the invention provides a kind of motor control method, dress via above-mentioned technical scheme
Put and electric system.The technical scheme provided using the present invention, first, the input voltage of detection motor or electrical equipment complete machine work as institute
State input voltage positioned at predeterminated voltage it is interval when, (predeterminated voltage is interval for the capacitor line of control the first electric capacity access motor
Minimum value is the first predeterminated voltage, and maximum is the second predeterminated voltage), predeterminated voltage interval can cover motor in the prior art
The magnitude of voltage that can be born；Then, when the input voltage is less than the first predeterminated voltage, first electric capacity and the second electricity are controlled
Hold the capacitor line (second electric capacity is in parallel with first electric capacity) of the access motor, second electric capacity and described first
Electric capacity is in parallel, can improve motor characteristic, improve motor speed；When the input voltage is higher than the second predeterminated voltage, control
Make first electric capacity and the 3rd electric capacity access the capacitor line (the 3rd electric capacity is connected with first electric capacity) of the motor,
3rd electric capacity is connected with first electric capacity, can reduce motor winding temperature.Therefore, the technical side that the present invention is provided
Case, can ensure motor be applicable voltage range it is larger on the premise of, effectively solve motor under high pressure winding temperature rise with
And under low pressure the problem of motor speed characteristic is poor.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is a kind of flow chart of motor control method provided in an embodiment of the present invention；
Fig. 2 controls the structure chart of circuit for a kind of capacitor of motor provided in an embodiment of the present invention；
Fig. 3 is the flow chart of another motor control method provided in an embodiment of the present invention；
Fig. 4 is the flow chart of another motor control method provided in an embodiment of the present invention；
Fig. 5 is a kind of structure chart of motor control assembly provided in an embodiment of the present invention；
Fig. 6 is a kind of structure chart of electric system provided in an embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
In order to facilitate the understanding of the purposes, features and advantages of the present invention, it is below in conjunction with the accompanying drawings and specific real
Applying mode, the present invention is further detailed explanation.
Embodiment one
Referring to Fig. 1, Fig. 1 is a kind of flow chart of motor control method provided in an embodiment of the present invention.As shown in figure 1,
This method includes：
The input voltage of step S101, detection motor or electrical equipment complete machine；
Specifically, the input voltage of motor and the input voltage of electrical equipment complete machine are equal in electrical equipment complete machine, detect wherein any
One.
Step S102, when the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the electric capacity of motor
Line；The interval minimum value of the predeterminated voltage is the first predeterminated voltage, and maximum is the second predeterminated voltage；
Specifically, referring to Fig. 2, Fig. 2 controls the structure chart of circuit for a kind of capacitor of motor provided in an embodiment of the present invention.
As shown in Fig. 2 the first electric capacity C1 can connect the capacitor line of motor.Specifically, the predeterminated voltage is interval, optionally, it is
(165~264) lie prostrate.In existing technology, (165~264) lie prostrate input voltage under, motor reluctantly can with stable operation, but
Need to be designed to many gear motors, it is relatively complicated.The technical scheme that the present invention is provided, it is only necessary to control first electric capacity to access
The capacitor line of motor, you can change of the reply motor input voltage in predeterminated voltage interval.
Step S103, when the input voltage is less than the first predeterminated voltage, controls first electric capacity and the second electric capacity
Access the capacitor line of the motor；Second electric capacity is in parallel with first electric capacity；
Specifically, first predeterminated voltage, is 165 volts optionally.Optionally, as shown in Fig. 2 when the input electricity
Force down when 165 volts, control the first electric capacity C1 and the second electric capacity C2 to be linked into the capacitor line of motor, first electricity
Appearance C1 and the second electric capacity C2 is parallel-connection structure.
Step S104, when the input voltage is higher than the second predeterminated voltage, controls first electric capacity and the 3rd electric capacity
Access the capacitor line of the motor；3rd electric capacity is connected with first electric capacity；
Specifically, second predeterminated voltage, is 264 volts optionally.Optionally, as shown in Fig. 2 when the input electricity
When pressure is higher than 264 volts, the first electric capacity C1 and the 3rd electric capacity C3 is controlled to access the capacitor line of the motor, first electric capacity
C1 and the 3rd electric capacity C3 is cascaded structure.
The technical scheme provided using the embodiment of the present invention one, first, the input voltage of detection motor or electrical equipment complete machine, when
When the input voltage is located at predeterminated voltage interval, (predeterminated voltage is interval for the capacitor line of control the first electric capacity access motor
Minimum value be the first predeterminated voltage, maximum is the second predeterminated voltage), predeterminated voltage interval can be covered electric in the prior art
The magnitude of voltage that machine can be born；Then, when the input voltage is less than the first predeterminated voltage, first electric capacity and second are controlled
Electric capacity accesses the capacitor line (second electric capacity is in parallel with first electric capacity) of the motor, second electric capacity and described the
One electric capacity is in parallel, can improve motor characteristic, improve motor speed；When the input voltage is higher than the second predeterminated voltage,
First electric capacity and the 3rd electric capacity is controlled to access capacitor line (the 3rd electric capacity and the first electric capacity string of the motor
Connection), the 3rd electric capacity is connected with first electric capacity, can reduce motor winding temperature.Therefore, the technology that the present invention is provided
Scheme, can be on the premise of ensureing that the applicable voltage range of motor is larger, and effectively solving motor, winding temperature is raised under high pressure
And under low pressure the problem of motor speed characteristic is poor.
In order to further refine the technical scheme for illustrating that the present invention is provided, invention additionally discloses another specific implementation
Example.
Embodiment two
Referring to Fig. 3, Fig. 3 is the flow chart of another motor control method provided in an embodiment of the present invention.Such as Fig. 3 institutes
Show, this method includes：
The input voltage of step S301, detection motor or electrical equipment complete machine；
Step S302, when the input voltage be located at predeterminated voltage it is interval when, control the first relay closure makes described the
One electric capacity accesses the capacitor line of the motor, and first relay is connected with first electric capacity；
Step S303, when the input voltage is less than the first predeterminated voltage, the first relay of control and the second relay
It is respectively closed, first electric capacity and second electric capacity is all accessed the capacitor line of the motor；First relay with
The first electric capacity series connection, second relay is connected with second electric capacity；
Step S304, when the input voltage is higher than the second predeterminated voltage, the first relay of control disconnects, the 3rd relay
Device is closed, and first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；First relay and institute
The series connection of the first electric capacity is stated, the 3rd relay is connected with the 3rd electric capacity.
Whether electric capacity accesses the capacitor line of motor by Control it can be seen from above-described embodiment two.Embodiment two
The technical scheme of offer, each electric capacity individually be equipped with a corresponding relay come control break-make, it is necessary to illustrate, one after
Electrical equipment can also control the break-make of multiple electric capacity, refer to following embodiments, it is to be understood that this application inventive concept
The change to technical solution of the present invention realized, it should also belong to protection scope of the present invention.
Embodiment three
Referring to Fig. 4, Fig. 4 is the flow chart of another motor control method provided in an embodiment of the present invention.Such as Fig. 4 institutes
Show, this method includes：
The input voltage of step S401, detection motor or electrical equipment complete machine；
Step S402, when the input voltage is located at predeterminated voltage interval, the normally-closed contact dimension of the 4th relay of control
Hold closure state, first electric capacity is accessed the capacitor line of the motor, the normally-closed contact of the 4th relay with it is described
First electric capacity is connected；
Step S403, when the input voltage is less than the first predeterminated voltage, controls the normally closed of the 4th relay to touch
Point maintains closure state, first electric capacity is accessed the capacitor line of the motor, control the 5th relay closure, makes described the
Two electric capacity access the capacitor line of the motor；The normally-closed contact of 4th relay is connected with first electric capacity, and described
Five relays are connected with second electric capacity；
Step S404, when the input voltage is higher than the second predeterminated voltage, controls the normally closed of the 4th relay to touch
Point disconnects, normally opened contact closure, first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；Described
The normally-closed contact of four relays is connected with first electric capacity, normally opened contact and the 3rd electric capacity string of the 4th relay
Connection.
In order to more comprehensively illustrate the technical scheme that the present invention is provided, corresponding to motor control provided in an embodiment of the present invention
Method processed, the further open motor control assembly of the present invention.
Referring to Fig. 5, Fig. 5 is a kind of structure chart of motor control assembly provided in an embodiment of the present invention.As shown in figure 5,
The device includes：
Detection unit 501, the input voltage for detecting motor or electrical equipment complete machine；
First control unit 502, for when the input voltage is located at predeterminated voltage interval, the first electric capacity of control to be accessed
The capacitor line of motor；The interval minimum value of the predeterminated voltage is the first predeterminated voltage, and maximum is the second predeterminated voltage；
Second control unit 503, for when the input voltage is less than the first predeterminated voltage, controlling first electric capacity
The capacitor line of the motor is accessed with the second electric capacity；Second electric capacity is in parallel with first electric capacity；
3rd control unit 504, for when the input voltage is higher than the second predeterminated voltage, controlling first electric capacity
The capacitor line of the motor is accessed with the 3rd electric capacity；3rd electric capacity is connected with first electric capacity.
Specifically, motor control assembly provided in an embodiment of the present invention, optionally, first control unit 502 include：
First control subelement, for when the input voltage is located at predeterminated voltage interval, the first relay of control to be closed
Close, first electric capacity is accessed the capacitor line of the motor, first relay is connected with first electric capacity.
Accordingly, optionally, second control unit 503 includes：
Second control subelement, for when the input voltage be less than the first predeterminated voltage when, control the first relay and
Second relay is respectively closed, and first electric capacity and second electric capacity is all accessed the capacitor line of the motor；Described
One relay is connected with first electric capacity, and second relay is connected with second electric capacity.
Accordingly, optionally, the 3rd control unit 504 includes：
3rd control subelement, for when the input voltage is higher than the second predeterminated voltage, the first relay of control to break
Open, the 3rd relay is closed, and first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；Described first
Relay is connected with first electric capacity, and the 3rd relay is connected with the 3rd electric capacity.
Further, motor control assembly provided in an embodiment of the present invention, can also be another structure, wherein, can
Choosing, first control unit 502 includes：
4th control subelement, for when the input voltage is located at predeterminated voltage interval, controlling the 4th relay
Normally-closed contact maintains closure state, first electric capacity is accessed the capacitor line of the motor, the 4th relay it is normally closed
Connected with first electric capacity contact.
Accordingly, optionally, second control unit 503 includes：
5th control subelement, for when the input voltage is less than the first predeterminated voltage, controlling the 4th relay
The normally-closed contact of device maintains closure state, first electric capacity is accessed the capacitor line of the motor, and the 5th relay of control is closed
Close, second electric capacity is accessed the capacitor line of the motor；The normally-closed contact of 4th relay and first electric capacity
Series connection, the 5th relay is connected with second electric capacity.
Accordingly, optionally, the 3rd control unit 504 includes：
6th control subelement, for when the input voltage is higher than the second predeterminated voltage, controlling the 4th relay
The normally-closed contact of device disconnects, normally opened contact closure, first electric capacity and the 3rd electric capacity is all accessed the electricity of the motor
Hold line；The normally-closed contact of 4th relay is connected with first electric capacity, the normally opened contact of the 4th relay and institute
State the series connection of the 3rd electric capacity.
In order to more comprehensively illustrate the technical scheme that the present invention is provided, invention additionally discloses a kind of electric system.
Referring to Fig. 6, Fig. 6 is a kind of structure chart of electric system provided in an embodiment of the present invention.As shown in fig. 6, this is
System includes：
Motor 601, the capacitor control circuit 602 being connected with the motor 601, with the phase of capacitor control circuit 602
The controller 603 of connection；The capacitor control circuit 602 is connected with the capacitor line of the motor 601, including the first electric capacity,
Second electric capacity and the 3rd electric capacity；
The controller 603 is used for：Motor or the input voltage of electrical equipment complete machine are detected, is preset when the input voltage is located at
During voltage range, the first electric capacity of control accesses the capacitor line of motor, and the interval minimum value of the predeterminated voltage is the first default electricity
Pressure, maximum is the second predeterminated voltage, when the input voltage is less than the first predeterminated voltage, controls first electric capacity and the
Two electric capacity access the capacitor line of the motor, and second electric capacity is in parallel with first electric capacity, when the input voltage is higher than
During the second predeterminated voltage, control first electric capacity and the 3rd electric capacity to access the capacitor line of the motor, the 3rd electric capacity with
The first electric capacity series connection.
Understand that compared with prior art, the invention provides a kind of motor control method, dress via above-mentioned technical scheme
Put and electric system.The technical scheme provided using the present invention, first, the input voltage of detection motor or electrical equipment complete machine work as institute
State input voltage positioned at predeterminated voltage it is interval when, (predeterminated voltage is interval for the capacitor line of control the first electric capacity access motor
Minimum value is the first predeterminated voltage, and maximum is the second predeterminated voltage), predeterminated voltage interval can cover motor in the prior art
The magnitude of voltage that can be born；Then, when the input voltage is less than the first predeterminated voltage, first electric capacity and the second electricity are controlled
Hold the capacitor line (second electric capacity is in parallel with first electric capacity) of the access motor, second electric capacity and described first
Electric capacity is in parallel, can improve motor characteristic, improve motor speed；When the input voltage is higher than the second predeterminated voltage, control
Make first electric capacity and the 3rd electric capacity access the capacitor line (the 3rd electric capacity is connected with first electric capacity) of the motor,
3rd electric capacity is connected with first electric capacity, can reduce motor winding temperature.Therefore, the technical side that the present invention is provided
Case, can ensure motor be applicable voltage range it is larger on the premise of, effectively solve motor under high pressure winding temperature rise with
And under low pressure the problem of motor speed characteristic is poor.
Finally, in addition it is also necessary to explanation, herein, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between there is any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of key elements not only include that
A little key elements, but also other key elements including being not expressly set out, or also include be this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except also there is other identical element in the process including the key element, method, article or equipment.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For motor disclosed in embodiment
For control device and electric system, because it is corresponding with motor control method disclosed in embodiment, so the comparison of description
Simply, related part is referring to method part illustration.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in random access memory (RAM), internal memory, read-only deposit
Reservoir (ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technology
In any other form of storage medium well known in field.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (15)
1. a kind of motor control method, it is characterised in that including：
Detect motor or the input voltage of electrical equipment complete machine；
When the input voltage is located at predeterminated voltage interval, the first electric capacity of control accesses the capacitor line of motor；The default electricity
Minimum value between nip is the first predeterminated voltage, and maximum is the second predeterminated voltage；
When the input voltage is less than the first predeterminated voltage, first electric capacity and the second electric capacity is controlled to access the motor
Capacitor line；Second electric capacity is in parallel with first electric capacity；
When the input voltage is higher than the second predeterminated voltage, first electric capacity and the 3rd electric capacity is controlled to access the motor
Capacitor line；3rd electric capacity is connected with first electric capacity.
2. according to the method described in claim 1, it is characterised in that described when the input voltage is located at predeterminated voltage interval
When, the first electric capacity of control accesses the capacitor line of motor, including：
When the input voltage is located at predeterminated voltage interval, control the first relay closure makes the first electric capacity access institute
The capacitor line of motor is stated, first relay is connected with first electric capacity.
3. according to the method described in claim 1, it is characterised in that described when the input voltage is less than the first predeterminated voltage
When, control first electric capacity and the second electric capacity to access the capacitor line of the motor, including：
When the input voltage is less than the first predeterminated voltage, the first relay of control and the second relay are respectively closed, and make institute
State the first electric capacity and second electric capacity all accesses the capacitor line of the motor；First relay and the first electric capacity string
Connection, second relay is connected with second electric capacity.
4. according to the method described in claim 1, it is characterised in that described when the input voltage is higher than the second predeterminated voltage
When, control first electric capacity and the 3rd electric capacity to access the capacitor line of the motor, including：
When the input voltage is higher than the second predeterminated voltage, the first relay of control disconnects, the 3rd relay closure, makes described
First electric capacity and the 3rd electric capacity all access the capacitor line of the motor；First relay and the first electric capacity string
Connection, the 3rd relay is connected with the 3rd electric capacity.
5. according to the method described in claim 1, it is characterised in that described when the input voltage is located at predeterminated voltage interval
When, the first electric capacity of control accesses the capacitor line of motor, including：
When the input voltage is located at predeterminated voltage interval, the normally-closed contact of the 4th relay of control maintains closure state, makes
First electric capacity accesses the capacitor line of the motor, and the normally-closed contact of the 4th relay is connected with first electric capacity.
6. method according to claim 5, it is characterised in that described when the input voltage is less than the first predeterminated voltage
When, control first electric capacity and the second electric capacity to access the capacitor line of the motor, including：
When the input voltage is less than the first predeterminated voltage, the normally-closed contact of the 4th relay is controlled to maintain closed form
State, makes first electric capacity access the capacitor line of the motor, and control the 5th relay closure makes the second electric capacity access institute
State the capacitor line of motor；The normally-closed contact of 4th relay is connected with first electric capacity, the 5th relay and institute
State the series connection of the second electric capacity.
7. method according to claim 5, it is characterised in that described when the input voltage is higher than the second predeterminated voltage
When, control first electric capacity and the 3rd electric capacity to access the capacitor line of the motor, including：
When the input voltage is higher than the second predeterminated voltage, controls the normally-closed contact of the 4th relay to disconnect, normally opened touch
Point closure, makes first electric capacity and the 3rd electric capacity all access the capacitor line of the motor；4th relay it is normal
Closed contact is connected with first electric capacity, and the normally opened contact of the 4th relay is connected with the 3rd electric capacity.
8. a kind of motor control assembly, it is characterised in that including：
Detection unit, the input voltage for detecting motor or electrical equipment complete machine；
First control unit, for when the input voltage is located at predeterminated voltage interval, the first electric capacity of control to access motor
Capacitor line；The interval minimum value of the predeterminated voltage is the first predeterminated voltage, and maximum is the second predeterminated voltage；
Second control unit, for when the input voltage is less than the first predeterminated voltage, controlling first electric capacity and second
Electric capacity accesses the capacitor line of the motor；Second electric capacity is in parallel with first electric capacity；
3rd control unit, for when the input voltage is higher than the second predeterminated voltage, controlling first electric capacity and the 3rd
Electric capacity accesses the capacitor line of the motor；3rd electric capacity is connected with first electric capacity.
9. device according to claim 8, it is characterised in that first control unit includes：
First control subelement, for when the input voltage is located at predeterminated voltage interval, control the first relay closure to make
First electric capacity accesses the capacitor line of the motor, and first relay is connected with first electric capacity.
10. device according to claim 8, it is characterised in that second control unit includes：
Second control subelement, for when the input voltage is less than the first predeterminated voltage, controlling the first relay and second
Relay is respectively closed, and first electric capacity and second electric capacity is all accessed the capacitor line of the motor；Described first after
Electrical equipment is connected with first electric capacity, and second relay is connected with second electric capacity.
11. device according to claim 8, it is characterised in that the 3rd control unit includes：
3rd control subelement, for when the input voltage is higher than the second predeterminated voltage, the first relay of control to disconnect, the
Three relays are closed, and first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；First relay
Device is connected with first electric capacity, and the 3rd relay is connected with the 3rd electric capacity.
12. device according to claim 8, it is characterised in that first control unit includes：
4th control subelement, for when the input voltage is located at predeterminated voltage interval, controlling the normally closed of the 4th relay
Contact maintains closure state, first electric capacity is accessed the capacitor line of the motor, the normally-closed contact of the 4th relay
Connected with first electric capacity.
13. device according to claim 12, it is characterised in that second control unit includes：
5th control subelement, for when the input voltage is less than the first predeterminated voltage, controlling the 4th relay
Normally-closed contact maintains closure state, first electric capacity is accessed the capacitor line of the motor, and control the 5th relay closure makes
Second electric capacity accesses the capacitor line of the motor；The normally-closed contact of 4th relay is connected with first electric capacity,
5th relay is connected with second electric capacity.
14. device according to claim 12, it is characterised in that the 3rd control unit includes：
6th control subelement, for when the input voltage is higher than the second predeterminated voltage, controlling the 4th relay
Normally-closed contact disconnects, normally opened contact closure, first electric capacity and the 3rd electric capacity is all accessed the capacitor line of the motor；
The normally-closed contact of 4th relay is connected with first electric capacity, the normally opened contact and the described 3rd of the 4th relay
Electric capacity is connected.
15. a kind of electric system, it is characterised in that including：
Motor, the capacitor control circuit being connected with the motor, the controller being connected with the capacitor control circuit；It is described
Capacitor control circuit is connected with the capacitor line of the motor, including the first electric capacity, the second electric capacity and the 3rd electric capacity；
The controller is used for：Motor or the input voltage of electrical equipment complete machine are detected, when the input voltage is located at predeterminated voltage area
Between when, the first electric capacity of control accesses the capacitor line of motor, and the interval minimum value of the predeterminated voltage is the first predeterminated voltage, maximum
It is worth for the second predeterminated voltage, when the input voltage is less than the first predeterminated voltage, control first electric capacity and the second electric capacity
The capacitor line of the motor is accessed, second electric capacity is in parallel with first electric capacity, when the input voltage is pre- higher than second
If during voltage, controlling first electric capacity and the 3rd electric capacity to access the capacitor line of the motor, the 3rd electric capacity and described the
One electric capacity is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364012.7A CN104883111B (en) | 2015-06-25 | 2015-06-25 | Motor control method, device and electric system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510364012.7A CN104883111B (en) | 2015-06-25 | 2015-06-25 | Motor control method, device and electric system |
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| CN104883111A CN104883111A (en) | 2015-09-02 |
| CN104883111B true CN104883111B (en) | 2017-09-22 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112910220B (en) * | 2021-01-28 | 2023-07-25 | 维沃移动通信有限公司 | Power supply device and electronic apparatus |
| CN112787501B (en) * | 2021-01-28 | 2022-05-24 | 维沃移动通信有限公司 | Charging device and electronic apparatus |
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| US4992709A (en) * | 1989-06-20 | 1991-02-12 | Lightolier, Inc. | Switching circuit providing adjustable capacitive series voltage dropping circuit with a fractional horsepower motor |
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| CN104883111A (en) | 2015-09-02 |
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