CN210111894U - System for controlling generated current of power generation device - Google Patents
System for controlling generated current of power generation device Download PDFInfo
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- CN210111894U CN210111894U CN201921004599.0U CN201921004599U CN210111894U CN 210111894 U CN210111894 U CN 210111894U CN 201921004599 U CN201921004599 U CN 201921004599U CN 210111894 U CN210111894 U CN 210111894U
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Abstract
The utility model discloses a system for controlling power generation facility's generating current relates to manpower electricity generation technical field, and this system includes: the circuit comprises a voltage acquisition circuit, a current acquisition circuit, a CPU control circuit and a main power circuit. The voltage acquisition circuit is used for acquiring the instantaneous power generation voltage value of the power generation device; the current acquisition circuit is used for acquiring the actual power generation current value of the power generation device; the CPU control circuit is used for acquiring a gear current value and calculating a target power generation current value according to the instantaneous power generation voltage value and the gear current value; the CPU control circuit is also used for judging whether the difference value between the actual power generation current value and the target power generation current value exceeds a preset threshold value or not; the main power circuit is configured to: if the difference value does not exceed the preset threshold value, generating power by using the current actual power generation current value; and if the difference value exceeds the preset threshold value, adjusting the actual power generation current value until the difference value does not exceed the preset threshold value, and generating power. The utility model discloses can provide the generating current who satisfies human multiple motion demand.
Description
Technical Field
The utility model relates to a manpower electricity generation technical field, concretely relates to system for controlling power generation facility's generating current.
Background
With the development of science and technology and the improvement of living standard, the ways of entertainment and sports are increasingly abundant. Small boats are currently a popular type of recreational sports apparatus, and typically are provided with manual drive means, including foot pedals, hand-operated devices, etc., in addition to electric/internal combustion engine drive components.
In related equipment, a person in the prior art adopts a trample bicycle to convert mechanical energy of the trample bicycle into electric energy for ships, so that ship energy consumption is saved. However, in the process of converting the mechanical energy of the treading bicycle into the electrical energy, the existing system for controlling the generating set generally focuses on the generating efficiency and does not consider the movement requirement of the human body. Generally, when the pedaling speed of the bicycle is high, the pedaling personnel is full of energy, a more vigorous exercise effect is needed, and the existing system for controlling the power generation device is difficult to meet the requirement.
SUMMERY OF THE UTILITY MODEL
To the defect that exists among the prior art, the utility model aims to provide a system for controlling power generation facility's generating current, it can provide the generating current who satisfies human multiple motion demand.
In order to achieve the above purpose, the utility model adopts the technical proposal that: a system for controlling a generated current of a power generation device, comprising:
the voltage acquisition circuit is used for acquiring the instantaneous power generation voltage value of the power generation device;
the current acquisition circuit is used for acquiring the actual power generation current value of the power generation device;
the CPU control circuit is used for acquiring a gear current value and calculating a target power generation current value according to an instantaneous power generation voltage value and the gear current value, and is also used for judging whether the difference value between the actual power generation current value and the target power generation current value exceeds a preset threshold value or not;
a main power circuit configured to: if the difference value does not exceed the preset threshold value, the main power circuit generates power according to the current actual power generation current value; and if the difference value exceeds a preset threshold value, the main power circuit is used for adjusting the actual power generation current value until the difference value does not exceed the preset threshold value, and generating power by using the adjusted actual power generation current value.
On the basis of the technical scheme, the formula for calculating the target power generation current value is as follows:
or
Wherein I represents a target power generation current value; u represents an instantaneous power generation voltage value of the power generation device; i isoRepresenting a gear current value; p represents the maximum generated power of the power generation device; u shapeaRepresents the maximum generated voltage of the power generation device.
On the basis of the technical scheme, the selectable gear current values are at least 3 and comprise 7A, 9A and 11A.
On the basis of the above technical solution, the system further includes: and the fault protection circuit is used for comparing the actual generating current value with a preset protection current value, and if the actual generating current value exceeds the preset protection current value, the fault protection circuit sends a fault signal to the CPU control circuit.
On the basis of the technical scheme, the fault protection circuit is further used for comparing the instantaneous power generation voltage value with a preset protection voltage value, and if the instantaneous power generation voltage value exceeds the preset protection voltage value, the fault protection circuit sends a fault signal to the CPU control circuit.
On the basis of the above technical solution, the system further includes: and the reset restart circuit is connected with the CPU control circuit.
On the basis of the above technical solution, the system further includes: a power supply connected with the main power circuit.
On the basis of the above technical solution, the system further includes: and the communication circuit is connected with the CPU control circuit.
Compared with the prior art, the utility model has the advantages of: the utility model discloses a system for control power generation facility's generating current through gathering the instantaneous generating voltage value of generator, is correlated with actual generating current value and generating device's instantaneous generating voltage value simultaneously, and along with instantaneous generating voltage value changes, actual generating current value also changes, and the human body experiences the load and also changes, and the power of trampling that needs to provide trample the bicycle also changes, has satisfied the demand of the multiple motion of human body.
Drawings
Fig. 1 is a flow chart of a method of controlling a generated current of a power generation device in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for controlling a generating current of a power generating device according to an embodiment of the present invention;
FIG. 3 is a circuit diagram of voltage acquisition according to an embodiment of the present invention;
fig. 4 is a circuit diagram of the current collection circuit in the embodiment of the present invention;
FIG. 5 is a circuit diagram of the CPU control circuit in the embodiment of the present invention;
fig. 6 is a main power circuit diagram in an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
Referring to fig. 1, an embodiment of the present invention provides a method for controlling a generated current of a power generation device, including the following steps:
and step S1, acquiring the instantaneous power generation voltage value and the actual power generation current value of the power generation device. Specifically, the power generation device can be understood as a manual mechanical device formed by combining a treading bicycle and a generator, and for convenience of subsequent description, the power generation device is equal to the generator. When the bicycle is pedaled by manpower, the rotor of the generator rotates to generate electricity. The instantaneous generating voltage value expression of the generator is as follows:
U＝nBSwsinwt
wherein n is the number of turns of the coil, B is the magnetic induction, S is the area of the coil, and w is the angular velocity of the rotor rotation. n, B and S are known parameters, and the influence on the instantaneous power generation voltage value is the angular speed of the rotor rotation, namely the stepping speed of a person.
Step S2, a gear current value is acquired, and a target power generation current value is calculated from the instantaneous power generation voltage value and the gear current value. Specifically, the formula for calculating the target power generation current value is as follows:
Wherein I represents a target power generation current value; u represents an instantaneous power generation voltage value of the power generation device; i isoRepresenting a gear current value; p represents the maximum generated power of the power generation device; u shapeaRepresents the maximum generated voltage of the power generation device.
Step S3, judging whether the difference value between the actual power generation current value and the target power generation current value exceeds a preset threshold value, if so, generating power by using the current actual power generation current value; if not, adjusting the actual generating current value until the difference value does not exceed the preset threshold value, and generating power according to the adjusted actual generating current value.
The following describes a method for controlling the generated current of the power generation device in the embodiment of the present invention with a specific power generation example.
The calculation formula of the treading force of treading the bicycle is as follows:
wherein F is the treading force; d is a treading force arm; m is the electromagnetic torque of the generator, and the calculation formula of the electromagnetic torque is as follows:
M＝CTΦI1
wherein, CTIs a torque constant,. phi.is a magnetic flux, I1The actual value of the generated current is
In the above formula, CTPhi and D are constants, and the pedaling force F for pedaling the bicycle is mainly determined by the actual generated current value I1And (4) determining.
Since the difference between the actual power generation current value and the target power generation current value is smaller than the preset threshold value, it can be generally understood as I1And if the current is I, the actual generating current expression of the generating device is as follows:
When the gear of the trample bicycle is selected, the corresponding gear current value IoIs a constant value, the maximum generated power P and the maximum generated voltage U of the power generation deviceaIs a set or selected constant value. At this time, the faster the bicycle is stepped on, i.e. the greater the angular speed w of the rotor rotation, the greater the instantaneous power generation voltage value U of the generator, and the actual power generation current value I of the power generation device1The larger the stepping force F required to step on the bicycle.
Compared with the prior art, the embodiment of the utility model provides an in the method of control power generation facility's generating current, through gathering the instantaneous generating voltage value of generator, if instantaneous generating voltage value is great, generator rotor pivoted angular velocity is very fast, and it is big to show human motion demand. Meanwhile, the actual power generation current value is associated with the instantaneous power generation voltage value of the power generation device, if the instantaneous power generation voltage value is large, the actual power generation current value is also large, a human body feels that the load is large, the treading force for treading a bicycle more greatly needs to be provided, and the requirement of violent movement of the human body is met.
In addition, if the instantaneous power generation voltage value is moderate and constant, the rotating angular speed of the generator rotor is stable, the actual power generation current value is also stable, the human body feels relatively balanced load, the pedaling force for pedaling the bicycle needs to be provided to be constant, and the human body exercise intensity is moderate.
If the instantaneous power generation voltage value is small, the rotating angular speed of the generator rotor is small, the actual power generation current value is small, a human body feels small load, the treading force required for treading the bicycle is small, the human body motion intensity is small, and the body feeling is leisure.
As a preferred embodiment, the gear current value in the embodiment of the present invention is at least 3, including 7A, 9A, and 11A. Specifically, the power generation device is provided with a plurality of gears, each gear corresponds to a gear current, and the actual power generation current expression of the power generation device shows that the instantaneous power generation voltage value is constant, the rotating angular speed of a rotor of the power generator is constant, and if the gear current value is larger, the actual power generation current value is also larger, and the load felt by a human body is larger. Under same trampling speed promptly, the load is different for the human body is experienced to different gears, tramples the personnel and can select the gear that accords with self according to physical stamina or demand and trample the motion. Multiple selectable range current values provide a greater range of motion requirements.
Referring to fig. 2, an embodiment of the present invention further provides a system for controlling a generated current of a power generation device, including: the circuit comprises a voltage acquisition circuit, a current acquisition circuit, a CPU control circuit and a main power circuit.
Referring to fig. 3, the voltage acquisition circuit is used for acquiring the instantaneous power generation voltage value of the power generation device. Referring to fig. 4, the current collecting circuit is used for collecting the actual power generation current value of the power generation device. Specifically, the power generation device can be understood as a manual mechanical device formed by combining a bicycle and a generator, and when the bicycle is pedaled by manpower, a rotor of the generator rotates to generate power. The instantaneous generating voltage value expression of the generator is as follows:
U＝nBSwsinwt
wherein n is the number of turns of the coil, B is the magnetic induction, S is the area of the coil, and w is the angular velocity of the rotor rotation. n, B and S are known parameters, and the influence on the instantaneous power generation voltage value is the angular speed of the rotor rotation, namely the stepping speed of a person.
Referring to fig. 5, the CPU control circuit is configured to obtain a gear current value and calculate a target power generation current value according to the instantaneous power generation voltage value and the gear current value, and the CPU control circuit is further configured to determine whether a difference between the actual power generation current value and the target power generation current value exceeds a preset threshold. Specifically, the formula for calculating the target power generation current value is as follows:
Wherein I represents a target power generation current value; u represents an instantaneous power generation voltage value of the power generation device; i isoRepresenting a gear current value; p represents the maximum generated power of the power generation device; u shapeaRepresents the maximum generated voltage of the power generation device.
Referring to fig. 6, a main power circuit configured to: if the difference value does not exceed the preset threshold value, the main power circuit generates power according to the current actual power generation current value; and if the difference value exceeds the preset threshold value, the main power circuit is used for adjusting the actual power generation current value until the difference value does not exceed the preset threshold value, and generating power by using the adjusted actual power generation current value.
The system for controlling the generated current of the power generator according to the embodiment of the present invention will be described below with reference to a specific power generation example.
The calculation formula of the treading force of treading the bicycle is as follows:
wherein F is the treading force; d is a treading force arm; m is the electromagnetic torque of the generator, and the calculation formula of the electromagnetic torque is as follows:
M＝CTΦI1
wherein, CTIs a torque constant,. phi.is a magnetic flux, I1The actual value of the generated current is
In the above formula, CTPhi and D are constants, and the pedaling force F for pedaling the bicycle is mainly determined by the actual generated current value I1And (4) determining.
Since the difference between the actual power generation current value and the target power generation current value is smaller than the preset threshold value, it can be understood as I1When the current is equal to I, the generating current expression of the generating device is as follows:
When the gear of the trample bicycle is selected, the corresponding gear current value IoIs a constant value, the maximum generated power P and the maximum generated voltage U of the power generation deviceaIs a set or selected constant value. At this time, the faster the bicycle is stepped on, i.e. the greater the angular speed w of the rotor rotation, the greater the instantaneous power generation voltage value of the generator, and the actual power generation current value I of the power generation device1The larger the stepping force F required to step on the bicycle.
Compared with the prior art, the embodiment of the utility model provides a system of control power generation facility's generating current, the instantaneous electricity generation voltage value of generator is gathered to the voltage acquisition circuit, if instantaneous electricity generation voltage value is great, and generator rotor pivoted angular speed is very fast, and it is big to show human motion demand. Meanwhile, the actual power generation current value is associated with the instantaneous power generation voltage value of the power generation device, if the instantaneous power generation voltage value is large, the actual power generation current value is also large, a human body feels that the load is large, the treading force for treading a bicycle more greatly needs to be provided, and the requirement of violent movement of the human body is met.
In addition, if the instantaneous power generation voltage value is moderate and constant, the rotating angular speed of the generator rotor is stable, the actual power generation current value is also stable, the human body feels relatively balanced load, the pedaling force for pedaling the bicycle needs to be provided to be constant, and the human body exercise intensity is moderate.
If the instantaneous power generation voltage value is small, the rotating angular speed of the generator rotor is small, the actual power generation current value is small, a human body feels small load, the treading force required for treading the bicycle is small, the human body motion intensity is small, and the body feeling is leisure.
As a preferred embodiment, the gear current value in the embodiment of the present invention is at least 3, including 7A, 9A, and 11A. Specifically, the power generation device is provided with a plurality of gears, each gear corresponds to a gear current, and the actual power generation current expression of the power generation device shows that the instantaneous power generation voltage value is constant, the rotating angular speed of a rotor of the power generator is constant, and if the gear current value is larger, the actual power generation current value is also larger, and the load felt by a human body is larger. Under same trampling speed promptly, the load is different for the human body is experienced to different gears, tramples the personnel and can select the gear that accords with self according to physical stamina or demand and trample the motion. Multiple selectable range current values provide a greater range of motion requirements.
As a preferred implementation manner, referring to fig. 2, the system for controlling the generated current of the power generation device in the embodiment of the present invention further includes a fault protection circuit, which is used to compare the actual generated current value with the preset protection current value, if the actual generated current value exceeds the preset protection current value, the fault protection circuit sends a fault signal to the CPU control circuit, and the CPU control circuit further locks the main power circuit to stop generating power, thereby ensuring the system safety.
Referring to fig. 2, the fault protection circuit is further configured to compare the instantaneous power generation voltage value with a preset protection voltage value, and if the instantaneous power generation voltage value exceeds the preset protection voltage value, the fault protection circuit sends a fault signal to the CPU control circuit, and the CPU control circuit further locks the main power circuit to stop power generation, thereby ensuring system safety.
As a preferred implementation manner, referring to fig. 2, the system for controlling the generated current of the power generation device in the embodiment of the present invention further includes a reset restart circuit, which is connected to the CPU control circuit, and is configured to receive a reset instruction of the external module, and send a reset signal to the CPU control circuit, so as to reset and restart the system. When the system stops working for some reason, the reset restart circuit assists the system to operate normally again.
As a preferred implementation manner, referring to fig. 2, the system for controlling the generated current of the power generation device in the embodiment of the present invention further includes a power supply, which is connected to the main power circuit, and is used for receiving the electric energy generated by the power generation device and providing the electric energy for the system.
As a preferred implementation manner, referring to fig. 2, the system for controlling the generated current of the power generation device in the embodiment of the present invention further includes a communication circuit, which is connected to the CPU control circuit, and is used for communicating with an external module, uploading data or receiving an instruction.
In addition, referring to fig. 2, in order to store the electric energy generated by the power generation device, the system for controlling the generating current of the power generation device according to the embodiment of the present invention is connected to an energy storage device for storing the electric energy generated by the power generation device.
The present invention is not limited to the above preferred embodiments, and any person can obtain other products in various forms without departing from the scope of the present invention, but any change in shape or structure is within the scope of protection.
Claims (8)
1. A system for controlling a generated current of a power generation device, comprising:
the voltage acquisition circuit is used for acquiring the instantaneous power generation voltage value of the power generation device;
the current acquisition circuit is used for acquiring the actual power generation current value of the power generation device;
the CPU control circuit is used for acquiring a gear current value and calculating a target power generation current value according to the instantaneous power generation voltage value and the gear current value; the CPU control circuit is also used for judging whether the difference value between the actual power generation current value and the target power generation current value exceeds a preset threshold value or not;
a main power circuit configured to: if the difference value does not exceed the preset threshold value, the main power circuit generates power according to the current actual power generation current value; and if the difference value exceeds a preset threshold value, the main power circuit is used for adjusting the actual power generation current value until the difference value does not exceed the preset threshold value, and generating power by using the adjusted actual power generation current value.
2. The system for controlling a generated current of a power generating apparatus according to claim 1, wherein the formula for calculating the target generated current value is as follows:
Wherein I represents a target power generation current value; u represents an instantaneous power generation voltage value of the power generation device; i isoRepresenting a gear current value; p represents the maximum generated power of the power generation device; u shapeaRepresents the maximum generated voltage of the power generation device.
3. The system for controlling a generating current of a power generating apparatus according to claim 1, wherein: the gear current values are at least 3, including 7A, 9A and 11A.
4. The system for controlling a generated current of a power generation device according to claim 1, further comprising:
and the fault protection circuit is used for comparing the actual generating current value with a preset protection current value, and if the actual generating current value exceeds the preset protection current value, the fault protection circuit sends a fault signal to the CPU control circuit.
5. The system for controlling a generating current of a power generating apparatus according to claim 4, wherein:
the fault protection circuit is also used for comparing the instantaneous power generation voltage value with a preset protection voltage value, and if the instantaneous power generation voltage value exceeds the preset protection voltage value, the fault protection circuit sends a fault signal to the CPU control circuit.
6. The system for controlling a generated current of a power generation device according to claim 1, further comprising: and the reset restart circuit is connected with the CPU control circuit.
7. The system for controlling a generated current of a power generation device according to claim 1, further comprising: a power supply connected with the main power circuit.
8. The system for controlling a generated current of a power generation device according to claim 1, further comprising: and the communication circuit is connected with the CPU control circuit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266225A (en) * | 2019-06-28 | 2019-09-20 | 武汉新能源研究院有限公司 | Control the method and system of the generation current of power generator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110266225A (en) * | 2019-06-28 | 2019-09-20 | 武汉新能源研究院有限公司 | Control the method and system of the generation current of power generator |
| CN110266225B (en) * | 2019-06-28 | 2024-01-09 | 武汉新能源研究院有限公司 | Method and system for controlling power generation current of power generation device |
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