CN86202150U - Frequency compensation type shaft-driven generator apparatus - Google Patents
Frequency compensation type shaft-driven generator apparatus Download PDFInfo
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- CN86202150U CN86202150U CN 86202150 CN86202150U CN86202150U CN 86202150 U CN86202150 U CN 86202150U CN 86202150 CN86202150 CN 86202150 CN 86202150 U CN86202150 U CN 86202150U CN 86202150 U CN86202150 U CN 86202150U
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- generator
- shaft
- phase
- speed
- boats
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Abstract
The utility model discloses a frequency compensation type shaft-driven generator device of a marine vessel, which is characterized in that the main generator of the marine vessel is directly and indirectly driven by the main engine of the marine vessel; the influence on the power generation frequency of the main generator due to the speed change of the main engine is extinguished by the electromagnetic compensation provided by the other compensated generator. The compensating principle is that the summation of the rotation speed of the rotational magnetic field generated by the alternating current and the rotation speed of the self mechanical rotation is taken as the rotation speed of the resultant magnetic field; when the mechanical rotation speed is reduced, the rotation speed of the magnetic field provided by the compensated generator is correspondingly improved; the rotation speed of the resultant magnetic field is kept constant, which can ensure the constant power generation frequency of the main generator.
Description
The utility model relates to a class boats and ships shaft generator device.
At present, on the boats and ships that adopt diesel engine as the propelling main frame,, improve the boats and ships economy, all require to adopt main shaft power to drive alternating current power-generating system, i.e. boats and ships shaft generator system in order to save the energy.The boats and ships shaft generator device of Chu Xianing was broadly divided in recent years: constant speed class, constant frequency class and complex class.But wherein the constant speed class has unit efficiency too low, so energy-saving effect is poor, deficiency in economic performance cause shortcoming; And constant frequency class and complex class all have the device complexity, cost is too high and realize difficult deficiency.
For overcoming the deficiency of relevant boats and ships shaft generator device prior art, the utility model proposes the compensation shaft generator device of a quefrency, it has, and efficient height, cost are low, easy to manufacture, the characteristics of reliable operation.
First kind of frequency compensation formula shaft generator device is to be main generator, three-phase synchronous generator, the separately excited DC motor used as the frequency compensation machine, partly to be constituted for DC motor provides the three-phase synchronous generator of power supply and three-phase controllable silicon voltage regulator, frequency detecting and amplification controller etc. by axle generator.The Ship Propeling main frame links with axle generator and the three-phase synchronous generator that is used to provide the separately excited DC motor power supply respectively, drives their runnings with the main frame rotating shaft; The voltage that above-mentioned three-phase synchronous generator is exported offers separately excited DC motor after handling through the rectification of three-phase controllable silicon voltage regulator; DC motor drives another three-phase synchronous generator running again, and this generator both had been the exciter of axle generator, made its power, frequency compensation machine again; Compensated dynamo is imported three-phase alternating current through slip ring in the rotor three-phase winding of axle generator; Between the main distribution board of Blast Furnace Top Gas Recovery Turbine Unit (TRT) and three-phase controllable silicon voltage regulator, connecting the frequency detecting amplification controller, as the feedback control circuit of whole generating device frequency stabilization.
The utility model can reach the stable principle of output voltage frequency by frequency compensation and be: the rotor three-phase winding of axle generator is interior by behind the compensated dynamo input three-phase alternating current, make between stator and rotor and produce rotating magnetic field in the space, and with compensated dynamo synchronous speed n
0Rotation; If this moment, main frame drove rotor and its rotating magnetic field again in the same way with n
1The rotating speed rotation, then Ci Shi space rotating magnetic field with respect to the rotating speed of stator is: n=n
0+ n
1Should synthesize rotating magnetic field cutting stator three phase windings, and then just produce induced electromotive force in the three-phase stator winding, its frequency is that p is the axle generator number of pole-pairs in the f=pn/60(formula).According to as can be known above-mentioned, as engine speed n
1During change, will cause the change of axle generator frequency f.But as long as at engine speed n
1When changing, the rotating magnetic field rotation speed n that compensated dynamo is provided
0Corresponding adjustment in addition, even the resultant magnetic field rotation speed n is constant, then the axle generator frequency f can keep constant.
TF～axle generator; TF
1～compensated dynamo;
ZD
1～separately excited DC motor; TF
2～three-phase synchronous generator is as ZD
1Power supply;
TZL
1～TF
1Phase-compounding excitation unit; TZL
2～TF
2Phase-compounding excitation unit;
SCR～three-phase controllable silicon voltage regulator; FVK～frequency detecting amplification controller;
ZP～boats and ships main distribution board; DC～storage battery;
B～shielded transformer;
Below in conjunction with accompanying drawing embodiment is described further.
When engine speed changes, though generator TF
2Rotating speed also changes thereupon, but its voltage that sends is after the rectified action of three-phase controllable voltage regulating device SCR, has become and direct voltage that engine speed is irrelevant, and this direct voltage is as DC motor ZD
1Power supply.ZD
1Drive compensated dynamo TF
1Running.When causing that owing to the engine speed change axle generator TF frequency f changes, then the frequency variation signal of its output changes thyristor operating angle among the SCK through the inspection automatic control of amplification controller fVK frequently, just can adjust ZD automatically
1Input voltage value, also just adjusted ZD automatically
1Rotating speed, thereby changed TF
1Rotating speed, adjust the required compensating frequency of TF to reach, keep the stable purpose of output voltage frequency.
The frequency compensated while also is the process of a power back-off: when engine speed changes, by automatic control break TF
1Rotating speed, also just changed electromagnetic compensation power, it is constant to guarantee that with this TF sends electrical power.
In this device, phase compound excitation self-excitation constant-voltage equipment TZL
1Be the indirect excitation mode.When TF causes change in voltage owing to rotating speed or load change, TZL
1The exciting current of output also changes thereupon, makes TF
1The corresponding change of output voltage values, stable with this voltage of keeping TF.
The another kind of frequency compensation formula shaft generator device that the utility model provides, be three-phase synchronous AC generator, continuous current shunt dynamo, the electromagnetism drive speed-adjusting machine of using by generator by way of compensation, composition such as the three-phase synchronous AC generator of using as the boats and ships main generator and control flow.The rotating shaft of Ship Propeling main frame links with the outer rotor shaft of electromagnetism drive speed-adjusting machine and the armature spindle of compensated dynamo respectively; The inner rotor shaft and the main generator of electromagnetism drive speed-adjusting machine link; Compensated dynamo provides power supply through control flow to electromagnetism drive speed-adjusting machine, makes it decide the external rotor winding input three-phase alternating current that program is an electromagnetism drive speed-adjusting machine by giving.This wherein mentioned electromagnetism drive speed-adjusting machine is the core engine of this Blast Furnace Top Gas Recovery Turbine Unit (TRT), three-phase alternating current double speed or three fast squirrel-cage asynchronous motors that its similar double extension shaft stator is free to rotate, and its stator design becomes external rotor.
The principle of this kind Blast Furnace Top Gas Recovery Turbine Unit (TRT) is: when the external rotor winding of electromagnetism drive speed-adjusting machine passes to three-phase alternating current, just produce a rotating magnetic field between inside and outside rotor, then produce induced potential in the closed winding of internal rotor, and produced electric current; As the internal rotor of electrical conductor, one and the equidirectional electromagnetic torque of rotating magnetic field under the effect of electromagnetic force, have been produced; When rotor rotation is got up, just exportable mechanical output.If with the external rotor and the equidirectional running of rotating magnetic field of host driven electromagnetism drive speed-adjusting machine, then the rotating speed of synthetic rotating magnetic field should be former magnetic field rotating speed and mechanical separator speed sum, thereby the rotating speed of internal rotor also will increase thereupon increasing again this moment.Therefore, when engine speed changes, can make rotating magnetic field rotating speed and its respective change that alternating current produced in the external rotor winding by suitable control method, keep synthetic rotating magnetic field stabilization of speed, thereby make its main generator output voltage frequency that drives stable.With preceding kind of Blast Furnace Top Gas Recovery Turbine Unit (TRT) in like manner, at the rotating speed compensation process simultaneously, power is also compensated.
Accompanying drawing 2 is schematic diagrams of this kind TRT. Wherein
～electromagnetic driven governor;
～boats and ships main generator;
LK～control flow; TL～phase compound excitation self-excitation constant-voltage equipment;
ZP～boats and ships main distribution board;
Accompanying drawing 3 is the electromagnetic driven governor structure charts in this kind TRT. Wherein:
(1)～outer rotor shaft; (2)～bearing spider; (3)～slip ring;
(4)～carbon brush; (5)～external rotor; (6)～fan;
(7)～external rotor winding and iron core; (8)～internal rotor winding and iron core;
(9)～internal rotor; (10)～movable keep plate; (11)～fixed brake plate;
(12)～bearing
Below in conjunction with drawings and Examples the utility model is done further narration.
When boats and ships normally navigate by water, the electromagnetic driven governor
The movable keep plate (10) of inner and outer Rotator by electromagnetic brake realize braking with fixed brake plate (11), become a rotary rigid body, main engine power can be given the boats and ships main generator through transmission rigid body direct-drive
, this state has been realized harmless transmission, it is most effective.
When ship speed drops to a certain degree, by
Provide and through the power supply of LK control, just so that electromagnetic brake get and electricly open and electricity is added to the electromagnetic driven governorOuter rotor on, make
Enter under the not only electronic but also double drive state and move, the rotating speed of electronic part and power are compensating rotational speed and power. Main frame continues reduction of speed, and then electromagnetic brake continues to keep powered open state, changes again
Number of pole-pairs (minimizing number of pole-pairs), its electronic part rotating speed is raise, at this moment
Be under the high compensating coefficient and move. So go down, until reach till the speed governing requirement, vice versa. Above-mentioned control is to automatically switch by the program of giving earlier design to control.
During design, can be according to the speed adjustable range requirement,
The electric compensating power section reduce as far as possible, Main drive power is partly increased as far as possible, can under speed governing compensation condition, still have high efficiency by holding device like this. In addition, in order to ensure
Overload capacity, in the pole-changing control process, need guarantee V/f ≈ constant during design. (V:
Input voltage value; F:
The input voltage frequency values. )
Claims (3)
1, a kind of boats and ships shaft generator device, it is characterized in that: the Ship Propeling main frame drives axle generator TF and three-phase synchronous generator TF simultaneously
2Running, TF
2Output voltage after the rectified action of three-phase controllable silicon voltage regulator SCR, as separately excited DC motor ZD
1Power supply, ZD
1Drive three-phase synchronous generator TF
1Running, TF
1Through the rotor three-phase winding input three-phase alternating current of slip ring, between main distribution board ZP and SCR, be provided with frequency detecting and amplification controller fVK to TF.
2, a kind of boats and ships shaft generator device is characterized in that: the rotating shaft of Ship Propeling main frame respectively with electromagnetism drive speed-adjusting machine
Outer rotor shaft and compensated dynamo G
1Armature spindle link,
Inner rotor shaft and boats and ships main generator
Link,
With
Between be provided with a control flow LK,
Through LK to
Power supply is provided, and LK decides program three-phase alternating current is input to by giving
In the winding of external rotor.
3, boats and ships shaft generator device according to claim 2, feature is: its described electromagnetism drive speed-adjusting machine
Be a three-phase alternating current double speed or the three fast squirrel cage asynchronous motors that the double extension shaft stator is free to rotate, power shaft is external rotor (stator) axle, and output shaft is an inner rotor shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202150 CN86202150U (en) | 1986-04-10 | 1986-04-10 | Frequency compensation type shaft-driven generator apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 86202150 CN86202150U (en) | 1986-04-10 | 1986-04-10 | Frequency compensation type shaft-driven generator apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN86202150U true CN86202150U (en) | 1987-02-18 |
Family
ID=4805747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 86202150 Granted CN86202150U (en) | 1986-04-10 | 1986-04-10 | Frequency compensation type shaft-driven generator apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN86202150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247064B (en) * | 2008-03-24 | 2010-06-09 | 王光顺 | Brushless ac excitation speed-changing same-frequency generator |
| CN103546081A (en) * | 2013-10-24 | 2014-01-29 | 陈作平 | Power generation system of marine main engine |
-
1986
- 1986-04-10 CN CN 86202150 patent/CN86202150U/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101247064B (en) * | 2008-03-24 | 2010-06-09 | 王光顺 | Brushless ac excitation speed-changing same-frequency generator |
| CN103546081A (en) * | 2013-10-24 | 2014-01-29 | 陈作平 | Power generation system of marine main engine |
| CN103546081B (en) * | 2013-10-24 | 2016-03-16 | 陈作平 | Power generation system of marine main engine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |