CN208904913U - A kind of permanent magnet diesel generator group control device - Google Patents
A kind of permanent magnet diesel generator group control device Download PDFInfo
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- CN208904913U CN208904913U CN201820867943.8U CN201820867943U CN208904913U CN 208904913 U CN208904913 U CN 208904913U CN 201820867943 U CN201820867943 U CN 201820867943U CN 208904913 U CN208904913 U CN 208904913U
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- permanent magnet
- rotational speed
- actuator
- speed governor
- diesel engine
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- 238000001514 detection method Methods 0.000 claims abstract description 5
- 238000010248 power generation Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 4
- 230000033228 biological regulation Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
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Abstract
The utility model relates to micro permanent magnet electricity generator fields, it is simple more particularly to a kind of structure, it can be improved the permanent magnet diesel generator group control device of permanent magnet generator unit electric property, generating set includes diesel engine, permanent magnet generator, diesel engine drives permanent magnet generator power generation, export AC energy, permanent magnet generator electrical connection has rotational speed governor and actuator, rotational speed governor includes detection comparison circuit unit, control amplifying unit, output power unit, actuator is stepper motor, rotational speed governor is fixed on a diesel engine, the connection of the speed lever of actuator and diesel engine, actuator is controlled by the output of rotational speed governor, after installing rotational speed governor additional, it ensure that generating set zero load, output voltage is within the scope of index request when bringing onto load.
Description
Technical field
The utility model relates to micro permanent magnet electricity generator fields, and in particular to a kind of structure is simple, can be improved permanent magnetism hair
The permanent magnet diesel generator group control device of motor group electric property.
Background technique
The matched diesel generating set of traditional permanent magnet generator, because of the intrinsic spy that permanent magnet generator magnetic field is not adjustable
Point, so that the demagnetizing effect of armature-reaction makes the reduction of its output voltage after permanent magnet generator bringing onto load；Turn after diesel engine bringing onto load
Speed reduces, and further decreases output voltage, can not meet the requirement of performance indicator, due to the limitation of index, so that inherently
The permanent magnet generator of lot of advantages cannot be widely used.
Summary of the invention
There is provided that a kind of structure is simple, control hair the purpose of the utility model is to overcome the deficiencies in the prior art
Permanent magnet diesel generator group control device of the motor group output voltage in stability range.
The technical solution of the utility model is achieved in that
A kind of permanent magnet diesel generator group control device, generating set include diesel engine, permanent magnet generator, and diesel engine drives
Permanent magnet generator power generation exports AC energy, and the permanent magnet generator electrical connection has rotational speed governor and actuator, described
Rotational speed governor include detection comparison circuit unit, control amplifying unit, output power unit, actuator is stepper motor,
The rotational speed governor is fixed on a diesel engine.
The speed lever of the actuator and diesel engine connects.
The actuator is controlled by the output of rotational speed governor.
The good effect of the utility model is: after installing rotational speed governor additional, when generating set zero load, by engine speed tune
It is low, voltage when generating set zero load is reduced, guarantees generating set floating voltage in index request range；After bringing onto load, it will send out
Motivation revolving speed is turned up, and also just improves output voltage when genset load in this way, ensure that generating set zero load, bringing onto load
When output voltage within the scope of index request.
Detailed description of the invention
Fig. 1 is the structural principle block diagram of the utility model.
Fig. 2 is the schematic diagram that the generating set output end voltage of the utility model declines with output power increase.
Fig. 3 is that the generating set output end voltage of the utility model increases and raised schematic diagram with revolving speed.
Fig. 4 is the schematic diagram that the rotary speed of generator group of the utility model declines with output power increase.
Specific embodiment
As shown in fig. 1 to fig. 4, a kind of permanent magnet diesel generator group control device, generating set include diesel engine, permanent magnetism hair
Motor, diesel engine drive permanent magnet generator power generation, export AC energy, and the permanent magnet generator electrical connection has revolving speed control
Device 1 and actuator 2, rotational speed governor 1 is fixed on a diesel engine, and rotational speed governor 1 includes detection comparison circuit unit, controls and put
Big unit, output power unit, actuator 2 are stepper motor, and actuator 2 is connect with the speed lever of diesel engine, actuator 2
It is controlled by the output of rotational speed governor 1.
Concrete operating principle is:
After generating set bringing onto load, output voltage declines because of revolving speed, loads the superposition of armature-reaction and decline,
So that the amplitude of output voltage decline is larger, index allowed band is had exceeded；When unloaded, since engine speed is higher, so that
Generating set floating voltage is also higher by index allowed band, affects the use of unit.
After installing rotational speed governor additional, generating set output voltage signal, the signal passes through the detection inside rotational speed governor
Comparison circuit unit is compared input voltage signal with preset value, calculates, and output power to actuator, actuator connects
Control information is received, the speed lever of diesel engine is pushed, controls the fuel delivery of diesel engine, to realize the increasing of diesel engine speed
Greatly with reduction, the range that generator output voltage is maintained at setting is controlled.
By above-mentioned speed control principle, rotational speed governor is installed to a 4kW permanent magnet diesel generator group additional, test result is shown in Table
1 and table 2.
Correlation data:
Before installing controller additional: floating voltage: 241.5V, full-load voltage: 224.2V；Idling frequency: 50.5Hz is fully loaded with frequency:
52Hz。
After installing controller additional: floating voltage: 232V, full-load voltage: 225V；Idling frequency: 53.48Hz is fully loaded with frequency:
51.67Hz。
It compares steady state voltage regulation and steady state frequency regulation: after installing controller additional, having obtained biggish improvement, it can
Meet the performance indicator requirement in general power station.
GJB5785-2006 is compareed, the permanent magnet diesel hair to the regulation of generating set performance indicator, after adding rotational speed governor
Motor group performance indicator can satisfy the index request in III class power station.
Claims (3)
1. a kind of permanent magnet diesel generator group control device, generating set includes diesel engine, permanent magnet generator, and diesel engine drives forever
Magnetic generator power generation, exports AC energy, it is characterised in that: the permanent magnet generator electrical connection has rotational speed governor and holds
Row device, the rotational speed governor include detection comparison circuit unit, control amplifying unit, output power unit, and actuator is
Stepper motor, the rotational speed governor are fixed on a diesel engine.
2. permanent magnet diesel generator group control device according to claim 1, it is characterised in that: the actuator and bavin
The speed lever of oil machine connects.
3. permanent magnet diesel generator group control device according to claim 1, it is characterised in that: the actuator is by turning
The output of fast controller controls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867943.8U CN208904913U (en) | 2018-06-06 | 2018-06-06 | A kind of permanent magnet diesel generator group control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820867943.8U CN208904913U (en) | 2018-06-06 | 2018-06-06 | A kind of permanent magnet diesel generator group control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208904913U true CN208904913U (en) | 2019-05-24 |
Family
ID=66566345
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820867943.8U Active CN208904913U (en) | 2018-06-06 | 2018-06-06 | A kind of permanent magnet diesel generator group control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208904913U (en) |
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2018
- 2018-06-06 CN CN201820867943.8U patent/CN208904913U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Patentee after: Zhengzhou Foguang power generation equipment Co.,Ltd. Address before: 450001 No.50 Dongqing street, high tech Development Zone, Zhengzhou City, Henan Province Patentee before: ZHENGZHOU FOGUANG POWER GENERATION EQUIPMENT Co.,Ltd. |