CN206041835U - Frequency conversion diesel generating set export power supply changes control system - Google Patents
Frequency conversion diesel generating set export power supply changes control system Download PDFInfo
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- CN206041835U CN206041835U CN201620954277.2U CN201620954277U CN206041835U CN 206041835 U CN206041835 U CN 206041835U CN 201620954277 U CN201620954277 U CN 201620954277U CN 206041835 U CN206041835 U CN 206041835U
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Abstract
The utility model discloses a frequency conversion diesel generating set export power supply changes control system, including power switching circuit and controller, power switching circuit forms by three -phase rectifier circuit, electric capacity C1 and reduction voltage circuit are parallelly connected, AC has DC AC's topological structure, three -phase rectifier circuit forms by three -phase AC rectification bridge arm is parallelly connected, and just every rectifier bridge arm that exchanges mutually forms by two diodes series connection, and the every three -phase air switch QF1 of the equal link bit of series connection point on the inlet highway who exchanges the rectifier bridge arm mutually, the reduction voltage circuit is connected in parallel by first step -down bridge arm and second step -down bridge wall and forms, first step -down bridge arm is established ties by IGBT pipe T1 and IGBT pipe T3 and is formed, second step -down bridge arm is established ties by IGBT pipe T2 and IGBT pipe T4 and is formed, IGBT pipe T3's positive pole anodal and IGBT pipe T4 constitutes the first end of reduction voltage circuit, an inductance is connected respectively to IGBT pipe T1's positive pole anodal and IGBT pipe T2, two inductance are parallelly connected, be connected through electric capacity C2 between the first end of reduction voltage circuit and two inductance.
Description
Technical field
This utility model is related to a kind of frequency conversion diesel generating set out-put supply switching control system.
Background technology
Frequency conversion diesel generating set includes adjustable engine, permagnetic synchronous motor and controller, and which can be according to bearing power
Change adjust automatically adjustable engine rotating speed, so as to change the output frequency and power of permagnetic synchronous motor, make diesel oil send out
Group of motors always works in the state of most energy-conservation.The machine power of adjustable engine is converted to the electricity of variable frequency and variable voltage
Source, exports stable constant voltage DC electricity through Switching Power Supply rectification link, even if in nonlinear load and the feelings of unbalanced load
Under condition, lasting, stable, continual power supply can be also exported.Permagnetic synchronous motor has many advantages, is tied using bearing-free outer rotor
Structure, simple frame for movement make motor have long-life, high efficiency and high reliability, because without frictional power loss, overall efficiency
Up to more than 96%, far above small-power tradition constant speed electromotor.After the adjustable adjustable engine of adapted rotating speed, output can
Adjusting, best match being capable of achieving with load, the power output of adjustable engine is related to its rotating speed rather than is determined by distributive value, keeps away
Exempt from carbon deposit that adjustable engine is caused because being operated in low-load area etc. infringement, simultaneously because permagnetic synchronous motor do not have excitation around
Group, bearing etc., reliability is also greatly improved.Due to above advantage, frequency conversion diesel generating set is healed in small-power section unit application
Come more extensive.
The three-phase frequency sent by frequency conversion diesel generating set changes, the medium frequency alternating current of change in voltage, it is impossible to directly with
Conventional load matching is used, and must be galvanic current or constant pressure industrial-frequency alternating current via Power convert control system rectifying and voltage-stabilizing
Can use.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, there is provided a kind of frequency conversion diesel generating set output
Power convert control system, its ensure frequency conversion diesel generating set the galvanic of constant pressure can be provided while, realize for
The effective protection of power-switching circuit.
A kind of technical scheme for realizing above-mentioned purpose is：A kind of frequency conversion diesel generating set out-put supply conversion and control system
System, including power-switching circuit and controller；
The power-switching circuit is formed in parallel by rectified three-phase circuit, electric capacity C1 and reduction voltage circuit, with AC-DC-AC
Topological structure；
The rectified three-phase circuit is formed in parallel by three-phase alternating current rectifying bridge arm, and per AC rectification bridge arm described in phase by
Two Diode series are formed, and the series connection point of AC rectification bridge arm described in per phase is all connected with the sky of the three-phase on inlet highway
Air cock QF1；
The reduction voltage circuit is formed in parallel by the first blood pressure lowering bridge arm and the second blood pressure lowering bridge wall, the first blood pressure lowering bridge arm by
IGBT pipe T1 and IGBT pipe T3 are in series, and the second blood pressure lowering bridge arm is in series by IGBT pipe T2 and IGBT pipe T4, IGBT
The positive pole of the positive pole and IGBT pipe T4 of pipe T3 constitutes the first end of the reduction voltage circuit, the positive pole and IGBT pipe T2 of IGBT pipe T1
Positive pole connect an inductance, two inductance in parallel, the first end of the reduction voltage circuit and two inductance respectively
Between connected by electric capacity C2, two inductance and the electric capacity C2 form LC filter circuits；
The two ends of the rectified three-phase circuit, and the positive pole of the positive pole and IGBT pipe T2 of IGBT pipe T1 be equipped with it is described
The current sensor and voltage sensor of controller connection.
Further, the frequency conversion diesel generating set out-put supply switching control system also include electromagnetic interface filter, two
Counnter attack diode D0 is provided between the inductance and the second input of the electromagnetic interface filter, and the first of the electromagnetic interface filter is defeated
Enter the first end of the end connection reduction voltage circuit, the second outfan connection dc bus of the electromagnetic interface filter, the EMI
The first outfan connection 0V power lines of wave filter.
Further, on the electromagnetic interface filter, and the positive pole of the counnter attack diode D0 is equipped with the connection control
The current sensor and voltage sensor of device processed.
Further, the voltage sensor is isolated by optocoupler or relay.
Further, the current sensor is non-contact current sensor.
Further, the PID regulator electricity being connected between the positive pole of the controller and the counnter attack diode D0
Road.
Further, the inlet highway is provided with input power factor inductive sensor.
Further, the frequency conversion diesel generating set out-put supply switching control system also includes casing, the three-phase
Air switch is placed in the casing, and the power-switching circuit and the LC filter circuits are by the casing
Binding post is connected as a single entity.
Further, the controller is located on the tank wall of the casing, and the controller is provided with noise elimination button, honeybee
Ring device and status indicator lamp.
A kind of technical scheme of frequency conversion diesel generating set out-put supply switching control system of the present utility model is employed,
Including power-switching circuit and controller；The power-switching circuit is in parallel by rectified three-phase circuit, electric capacity C1 and reduction voltage circuit
Form, the topological structure with AC-DC-AC；The rectified three-phase circuit is formed in parallel by three-phase alternating current rectifying bridge arm, and per phase
The AC rectification bridge arm is formed by two Diode series, and the series connection point of AC rectification bridge arm is all connected with position described in per phase
Three-phase air switch QF1 on inlet highway；The reduction voltage circuit is by the first blood pressure lowering bridge arm and the parallel connection of the second blood pressure lowering bridge wall
Into, the first blood pressure lowering bridge arm is in series by IGBT pipe T1 and IGBT pipe T3, the second blood pressure lowering bridge arm by IGBT pipes T2 and
IGBT pipe T4 are in series, and the positive pole of the positive pole and IGBT pipe T4 of IGBT pipe T3 constitutes the first end of the reduction voltage circuit,
The positive pole of the positive pole and IGBT pipe T2 of IGBT pipe T1 connects an inductance, two inductance in parallel, the reduction voltage circuit respectively
First end and two inductance between connected by electric capacity C2, two inductance and the electric capacity C2 form LC filtering
Circuit；The two ends of the rectified three-phase circuit, and the positive pole of the positive pole and IGBT pipe T2 of IGBT pipe T1 is equipped with and the control
The current sensor and voltage sensor of device connection processed.Which has the technical effect that：Which can be provided in guarantee frequency conversion diesel generating set
Constant pressure it is galvanic simultaneously, realize the effective protection for power-switching circuit.
Description of the drawings
Fig. 1 is that a kind of circuit of frequency conversion diesel generating set out-put supply switching control system of the present utility model is illustrated
Figure.
Fig. 2 is the left side in a kind of casing of frequency conversion diesel generating set out-put supply switching control system of the present utility model
Depending on, face and right regard expanded schematic diagram.
Fig. 3 is the B of Fig. 2 to schematic diagram.
Specific embodiment
Refer to Fig. 1, inventor of the present utility model is in order to be able to preferably managing to the technical solution of the utility model
Solution, below by specifically embodiment, and combines accompanying drawing and is described in detail：
A kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model includes power-switching circuit 1
With electromagnetic interface filter 2, power-switching circuit 1 includes rectified three-phase circuit 11, reduction voltage circuit 12 and the electric capacity C1 being arranged in parallel.
Rectified three-phase circuit 11 is whole by A cross streams rectifying bridge arms, B cross streams rectifying bridge arm and the C cross streams being arranged in parallel
Stream bridge arm composition.
The A cross streams rectifying bridge arm is in series by diode D1 and diode D4, and the just extremely A of diode D4 intersects
The first end of stream rectifying bridge arm, the negative pole of diode D1 are the second end of A cross streams rectifying bridge arms.The B cross streams are whole
Stream bridge arm is in series by diode D2 and diode D5, the just extremely first end of B cross streams rectifying bridge arm of diode D5,
The second end of the negative pole of diode D2 for B cross streams rectifying bridge arms.The C cross streams rectifying bridge arm is by diode D3 and two poles
Pipe D6 is in series, and the just extremely first end of C cross streams rectifying bridge arm of diode D6, the negative pole of diode D3 are intersecting for C
The second end of stream rectifying bridge arm.The first of the first end of the A cross streams rectifying bridge arm, the B cross streams rectifying bridge arm
The first end of end and the C cross streams rectifying bridge arm constitutes the first end of rectified three-phase circuit 11, and the A cross streams are whole
The second end of the second end, the second end of the B cross streams rectifying bridge arm and the C cross streams rectifying bridge arm of stream bridge arm
Constitute the second end of rectified three-phase circuit 11.
Three-phase air switch QF1, three-phase air switch QF1 of the connection of three-phase alternating current rectification circuit 11 on inlet highway
Connect the positive pole of the positive pole, the positive pole of diode D2 and diode D3 of diode D1, the i.e. series connection of A cross streams rectifying bridge arm simultaneously
The series connection point of point, the series connection point of B cross streams rectifying bridge arms and C cross streams rectifying bridge arms.
Reduction voltage circuit 12 includes the first blood pressure lowering bridge arm being arranged in parallel and the second blood pressure lowering bridge arm.
The first blood pressure lowering bridge arm is in series by IGBT pipe T1 and IGBT pipe T3, and just extremely described the first of IGBT pipe T3
The first end of blood pressure lowering bridge arm, the negative pole of IGBT pipe T1 are the second end of the first blood pressure lowering bridge arm.The second blood pressure lowering bridge
Arm is in series by IGBT pipe T2 and IGBT pipe T4, the first end of the just extremely described second blood pressure lowering bridge arm of IGBT pipe T4,
The negative pole of IGBT pipe T2 is the second end of the second blood pressure lowering bridge arm.The first end of the first blood pressure lowering bridge arm and described
The first end of two blood pressure lowering bridge arms is connected to become the first end of reduction voltage circuit 12, the second end of the first blood pressure lowering bridge arm and
The second end of the second blood pressure lowering bridge arm connects the second end to form reduction voltage circuit 12.
The first end of the first end of rectified three-phase circuit 11 and reduction voltage circuit 12 connects the first end of electric capacity C1 simultaneously
Portion, forms the first end of power-switching circuit 1.The second end of the second end of rectified three-phase circuit 11 and reduction voltage circuit 12
Connect the second end of electric capacity C1 simultaneously, form the second end of power-switching circuit 1.
Second input of electromagnetic interface filter 2 connects the negative pole of counnter attack diode D0, the first input end of electromagnetic interface filter 2 with
Connect electric capacity C2 between the positive pole of counnter attack diode D0.
The first input end of electromagnetic interface filter 2 connects the first end of power-switching circuit 1, the positive pole of counnter attack diode D0
Connected by inductance L1 and the series connection point of the first blood pressure lowering bridge arm of the positive pole of IGBT pipe T1, i.e. reduction voltage circuit 12 between, counnter attack two
Pass through inductance L2 between the positive pole of pole pipe D0 and the series connection point of the second blood pressure lowering bridge arm of the positive pole of IGBT pipe T2, i.e. reduction voltage circuit 12
Connection.Inductance L1 and inductance L2 and electric capacity C2 constitute one group of LC filter circuit.
Power-switching circuit 1 in a kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model
According to the technical requirements of frequency conversion diesel generating set power supply, structure of the main topology using AC-DC-AC, by frequency conversion diesel-driven generator
Uncontrollable rectifier of the medium frequency alternating current of the permagnetic synchronous motor output of group through rectified three-phase circuit 11, and it is changed into DC current,
DC current is again after the staggeredly buck blood pressure lowerings of reduction voltage circuit 12, and the LC being made up of inductance L1, inductance L2 and electric capacity C2
After the filtering of filter circuit, then by counnter attack diode D0 and electromagnetic interface filter 2, export the constant voltage DC electricity of specific voltage.Wherein
The second outfan connection dc bus of electromagnetic interface filter 2, the first outfan connection 0V power lines of electromagnetic interface filter 2.
A kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model also includes controller 3, control
Device processed 3 is by data acquisition signal line, while connection is located at the two ends of the three-phase alternating current rectifying bridge arm of rectified three-phase circuit 1, i.e.,
The positive pole of diode D4, diode D5 and diode D6, and the electric current of the negative pole of diode D1, diode D2 and diode D3
Sensor and voltage sensor, for detecting to the input voltage and input current of rectified three-phase circuit 1, and make controller
3 pairs of inlet highways carry out overvoltage protection, under-voltage protection.The three-phase alternating current rectifying bridge arm of rectified three-phase circuit 1 is located at wherein
The current sensor at two ends is non-contact current sensor.
, by data signal line, connection is positioned at IGBT pipe T1 positive poles and IGBT pipe T3 positive poles, i.e. reduction voltage circuit 12 for controller 3
The first blood pressure lowering bridge arm series connection point, and the current sensor and voltage sensor on the series connection point of the second blood pressure lowering bridge arm use
In the failure of detection IGBT pipe T1～T4, and controller 3 is made to respond the driving malfunction of IGBT pipes T1～T4.Wherein it is located at
The series connection point of the first blood pressure lowering bridge arm of reduction voltage circuit 12, and the current sensor on the series connection point of the second blood pressure lowering bridge arm connect for non-
Touch current sensor.
Still further aspect, controller 3 are located at the current sensor of counnter attack diode D0 positive poles by data signal line connection
And voltage sensor, and the current sensor and voltage sensor on electromagnetic interface filter 2, for detecting electromagnetic interface filter 2
Input voltage and input current, and output voltage and output current, it is ensured that the constant current of electromagnetic interface filter 2 or constant pressure output, than
Such as ensure that output voltage is always+48V.Controller 3 can also set output current or the output electricity of electromagnetic interface filter 2 surely in addition
The limit value of pressure, the limit value is adjustable.When the output voltage of electromagnetic interface filter 2 or output current reach limit value, output voltage or defeated is maintained
Go out electric current constant in limit value.The current sensor being wherein located on counnter attack diode D0 positive poles and electromagnetic interface filter 2 is contactless
Current sensor.
Therefore in a kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model, Power convert
The configuration of the rectified three-phase circuit 11 and reduction voltage circuit 12 of circuit 1 meets threephase load balance and requires, while meeting various measurements
Require with control.
In a kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model, power-switching circuit 1
On all voltage sensors isolated with power-switching circuit 1 by optical fiber, optocoupler or relay, positioned at two pole of counnter attack
The voltage sensor of pipe D0 positive poles is isolated with counnter attack diode D0 by optical fiber, optocoupler or relay, filters positioned at EMI
Voltage sensor on device 2 is isolated with electromagnetic interface filter 2 by optical fiber, optocoupler or relay.To reduce coupled noise,
Avoid the formation of ground loop.
Work as input supply voltage, that is, the voltage for being input into rectified three-phase circuit 11 becomes in the fluctuation of 220V/380V ± 15% scope
The voltage of dc bus during change, is influenced whether, for guaranteeing the output voltage stabilizing requirement of dc bus, the PWM of reduction voltage circuit 12 is needed
Adjustment dutycycle meets the requirement of DC bus-bar voltage change, when input supply voltage reduces causing DC bus-bar voltage to decline
When, controller 3 can make the PWM of reduction voltage circuit 12 adjust automatic increasing of dutycycle will to meet dc bus output burning voltage
Ask, equally when input supply voltage increase causes DC bus-bar voltage to rise, controller 3 adjusts can the PWM of reduction voltage circuit 12
Automatically reduction meets dc bus output burning voltage requirement to whole dutycycle.
When the input power factor of power-switching circuit 1 is not less than 0.92, due to the connection of electromagnetic interface filter 2 is non-thread
Property load, power-switching circuit 1 is polluted greatly, because of the topological feature of power-switching circuit 1 AC-DC-AC itself, input prime
Exchange turns DC rectifier unit, i.e. the power factor of the input power of rectified three-phase circuit 11 is pulled low, for making input three-phase whole
The power factor of the input power of current circuit 11 is not less than 0.9, on inlet highway using input power factor inductive sensor (in figure
Do not show), make input work factor of the power-switching circuit 1 in fully loaded work be more than 0.9.
When the changed power of input voltage change or output loading, typically can all cause the change of output voltage, control
The Real-time Feedback by way of negative voltage feedback of device 3 adjusts output voltage, then coordinate optimization with controller 3 and counnter attack diode
The PID regulator circuit (not shown) of the positive pole connection of D0 so that output voltage control has on the basis of output is stable
Response speed guarantees the amplitude-frequency characteristic and phase-frequency characteristic of its closed loop control in Optimal State faster, further ensures that load is steady
Pressure rate and power supply voltage stabilizing rate are within index request.
A kind of function embodiment of frequency conversion diesel generating set out-put supply switching control system of the present utility model exists：
Detect the output voltage exported by dc bus and be compared with normal voltage, when output voltage exceedes in setting
In limited time, controller 3 is cut off the electricity supply change-over circuit 1 so that output voltage terminates exporting and reporting to the police.
IGBT pipes T1～upper current signals of T4 on detection reduction voltage circuit 12, when any one short circuit in IGBT pipes T1～T4
During damage, signal is fed back on controller 3, and the output of the cut-out reduction voltage circuit 12 of controller 3 is simultaneously reported to the police.
Detect the load current signal exported by dc bus and judge load current signal state, according to load current signal
State, is defined as delay protection, protects immediately or ignore and do not protect.When the output voltage of dc bus is very low and load current
Short-circuit condition is regarded it as when very big and the output of power cutoff change-over circuit 1 immediately.
The detection of controller 3 is connected module and transformer temperature with inlet highway, when its temperature is higher than safe temperature, cut-out
The output of power-switching circuit 1 is simultaneously reported to the police.
Input undervoltage and input phase failure on the detection inlet highway of controller 3, when the voltage for detecting inlet highway is less than
During setting value, the output of change-over circuit 1 of cutting off the electricity supply simultaneously is reported to the police.
Strong electromagnetic radiation environment may produce electromagnetic interference to controller 3 simultaneously, and controller 3 is arranged on compatible special
In the control board of different electromagnetic conditions；Under strong electromagnetic radiation environment, controller 3 may be subject to share power-switching circuit
The electromagnetism Interference of 1 other equipment, while power-switching circuit 1 is likely to produce Conduction Interference to electrical network or load,
This part optimization and input and output filter function matching corresponding electromagnetic interface filter 2 in design, and high-frequency inductor, i.e. inductance L1
With inductance L2, it is ensured that power supply safe and reliable work in the entire system.
A kind of frequency conversion diesel generating set out-put supply switching control system of the present utility model also includes casing 5, three-phase
Air switch QF1 is located in casing 5, in casing 5, power-switching circuit 1, the LC filter circuits, counnter attack diode D0 and EMI
Wave filter 2 is connected as a single entity by binding post 4.The bottom of the left wall and right wall of casing 5 is equipped with air vent 51.Controller 3
In the top of 5 right wall of casing, controller 3 is provided with noise elimination button TB, buzzer FM and status indicator lamp HD, power-switching circuit
1 normal work display lamp HD is shown in green, and 1 malfunction indicator lamp HD of power-switching circuit is shown in red.
Those of ordinary skill in the art is it should be appreciated that the embodiment of the above is intended merely to illustrate that this practicality is new
Type, and be not used as be to restriction of the present utility model, if in spirit of the present utility model, to the above
The change of embodiment, modification will all fall in Claims scope of the present utility model.
Claims (9)
1. a kind of frequency conversion diesel generating set out-put supply switching control system, including power-switching circuit and controller；Which is special
Levy and be：
The power-switching circuit is formed in parallel by rectified three-phase circuit, electric capacity C1 and reduction voltage circuit, opening up with AC-DC-AC
Flutter structure；
The rectified three-phase circuit is formed in parallel by three-phase alternating current rectifying bridge arm, and AC rectification bridge arm described in per phase is by two
Diode series are formed, and the series connection point of AC rectification bridge arm described in per phase is all connected with the three-phase air on inlet highway and opens
Close QF1；
The reduction voltage circuit is formed in parallel by the first blood pressure lowering bridge arm and the second blood pressure lowering bridge wall, and the first blood pressure lowering bridge arm is managed by IGBT
T1 and IGBT pipe T3 are in series, and the second blood pressure lowering bridge arm is in series by IGBT pipe T2 and IGBT pipe T4, IGBT pipe T3's
The positive pole of positive pole and IGBT pipe T4 constitutes the first end of the reduction voltage circuit, the positive pole of the positive pole and IGBT pipe T2 of IGBT pipe T1
Connect an inductance respectively, two inductance in parallel lead between the first end of the reduction voltage circuit and two inductance
Electric capacity C2 connections are crossed, two inductance form LC filter circuits with the electric capacity C2；
The two ends of the rectified three-phase circuit, and the positive pole of the positive pole and IGBT pipe T2 of IGBT pipe T1 is equipped with and the control
The current sensor and voltage sensor of device connection.
2. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 1, it is characterised in that：
The frequency conversion diesel generating set out-put supply switching control system also includes electromagnetic interface filter, two inductance and the EMI
Counnter attack diode D0 is provided between second input of wave filter, and the first input end of the electromagnetic interface filter connects the blood pressure lowering
The first end of circuit, the second outfan connection dc bus of the electromagnetic interface filter, the first output of the electromagnetic interface filter
End connection 0V power lines.
3. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 2, it is characterised in that：
On the electromagnetic interface filter, and the positive pole of the counnter attack diode D0 be equipped with connect the controller current sensor and
Voltage sensor.
4. a kind of frequency conversion diesel generating set out-put supply conversion and control system according to any one in claims 1 to 3
System, it is characterised in that：The voltage sensor is isolated by optocoupler or relay.
5. a kind of frequency conversion diesel generating set out-put supply conversion and control system according to any one in claims 1 to 3
System, it is characterised in that：The current sensor is non-contact current sensor.
6. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 2, it is characterised in that：
The PID regulator circuit being connected between the positive pole of the controller and the counnter attack diode D0.
7. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 1, it is characterised in that：
The inlet highway is provided with input power factor inductive sensor.
8. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 1, it is characterised in that：
The frequency conversion diesel generating set out-put supply switching control system also includes casing, and the three-phase air switch is placed in the case
In vivo, the power-switching circuit and the LC filter circuits are connected as a single entity by the binding post in the casing.
9. a kind of frequency conversion diesel generating set out-put supply switching control system according to claim 8, it is characterised in that：
The controller is located on the tank wall of the casing, and the controller is provided with noise elimination button, buzzer and status indicator lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954277.2U CN206041835U (en) | 2016-08-26 | 2016-08-26 | Frequency conversion diesel generating set export power supply changes control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620954277.2U CN206041835U (en) | 2016-08-26 | 2016-08-26 | Frequency conversion diesel generating set export power supply changes control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206041835U true CN206041835U (en) | 2017-03-22 |
Family
ID=58305480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620954277.2U Withdrawn - After Issue CN206041835U (en) | 2016-08-26 | 2016-08-26 | Frequency conversion diesel generating set export power supply changes control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206041835U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160517A (en) * | 2016-08-26 | 2016-11-23 | 上海科泰电源股份有限公司 | A kind of frequency conversion diesel generating set out-put supply switching control system |
-
2016
- 2016-08-26 CN CN201620954277.2U patent/CN206041835U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106160517A (en) * | 2016-08-26 | 2016-11-23 | 上海科泰电源股份有限公司 | A kind of frequency conversion diesel generating set out-put supply switching control system |
| CN106160517B (en) * | 2016-08-26 | 2018-11-27 | 上海科泰电源股份有限公司 | A kind of frequency conversion diesel generating set out-put supply switching control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170322 Effective date of abandoning: 20181127 |