CN1027779C - Stabilizer for multi-phase synchronous generator with rectification load - Google Patents
Stabilizer for multi-phase synchronous generator with rectification load Download PDFInfo
- Publication number
- CN1027779C CN1027779C CN 92113427 CN92113427A CN1027779C CN 1027779 C CN1027779 C CN 1027779C CN 92113427 CN92113427 CN 92113427 CN 92113427 A CN92113427 A CN 92113427A CN 1027779 C CN1027779 C CN 1027779C
- Authority
- CN
- China
- Prior art keywords
- generator
- control signal
- excitation
- load
- voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 16
- 239000003381 stabilizer Substances 0.000 title claims abstract description 7
- 230000005284 excitation Effects 0.000 claims abstract description 28
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000004804 winding Methods 0.000 claims 2
- 238000009833 condensation Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 claims 1
- 238000002955 isolation Methods 0.000 claims 1
- 230000010355 oscillation Effects 0.000 abstract description 5
- 230000000087 stabilizing effect Effects 0.000 abstract description 5
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000001869 rapid Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000033772 system development Effects 0.000 description 1
Images
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
本发明涉及带整流负载的多相(指三相、六相、十二相等)同步发电机稳定装置，其目的在于保证多相同步发电机(特别是无刷励磁同步发电机)在单机整流带反电动势负载或多机整流后并联带任意负载时，能消除由于发电机参数设计不当而产生的系统固有振荡，实现稳定运行。
本发明的目的是以如下方式来实现的：稳定装置输出直接控制励磁发电机的磁场电流；采用单台发电机整流输出电压ud和负载电流id作反馈信号，经过自适应的比例-积分-微分(PID)电路运算放大，去控制稳定装置的输出功率放大器。
The present invention relates to a multi-phase (referring to three-phase, six-phase, twelve-phase) synchronous generator stabilizing device with rectification load, and its purpose is to ensure that the multi-phase synchronous generator (especially the brushless excitation synchronous generator) When the counter electromotive force load or multi-machine rectification is connected in parallel with any load, it can eliminate the inherent oscillation of the system caused by improper design of generator parameters and realize stable operation.
The purpose of the present invention is achieved in the following manner: the stabilizer output directly controls the field current of the excitation generator; the rectified output voltage u d and the load current i d of a single generator are used as feedback signals, and through adaptive proportional-integral - Differential (PID) circuit operational amplifier to control the output power amplifier of the stabilizer.
Description
The present invention relates to heterogeneous (referring to that three-phase, six phases, 12 equate) synchronous generator stabilizing arrangement with rectification load.
The DC power supply power of aspect demands such as modern electric locomotive traction, oil drilling platform, post and telecommunications, power station, tunnel, naval vessel electric propulsion is increasing, and is more and more as DC power supply with the commutator formula DC generator that the polyphase synchronous generator of band bridge rectifier output is alternative traditional.Since the eighties, successively repeatedly find both at home and abroad: polyphase synchronous generator, the synchronous generator of heterogeneous brushless excitation particularly, after unit commutating zone counter electromotive force load (referring to DC motor, storage battery etc.) or multimachine rectification, in the system of band arbitrary load in parallel, may produce significantly intrinsic low frequency power oscillation.(for example, just run into such problem in Japanese fuji daily paper (Vol.56.No.2,1983) report Japan " rapids in vain " number ice breaker electric propulsion system development process.) inventor discovers: the electromagnetic parameter that adopts special construction suitably to control generator can make system avoid this vibration (seeing the patent of invention 92102441.X of issued for approval).Multiphase generator (particularly brushless excitation polyphase synchronous generator) for general structure can directly actuated object not be main generator magnetic field owing to excitation regulation device, but the magnetic field of coaxial excitation generator, the exciter inertial element makes the multiphase generator system exponent number of band rectification load increase, adjusting device time constant coupling difficulty is so common excitation regulation device is difficult to this natural oscillation of elimination system.
The objective of the invention is to provide a kind of stabilizer for multi-phase synchronous generator with rectification load, when arbitrary load is with in parallel connection after unit commutating zone counter electromotive force load or multimachine rectification with assurance polyphase synchronous generator (particularly brushless excitation synchronous generator), can eliminate owing to the improper system's natural oscillation that produces of generator parameter design, realize stable operation.
The objective of the invention is to realize as follows: stabilizing arrangement is the special excitation regulation device of a kind of multiphase generator, see accompanying drawing 1,2:(1) this excitation regulation device output control is not the magnetic field voltage of the excitation generator of common adjuster control, but directly control the field supply of excitation generator, thereby loop, exciter field equivalent time constant is reduced greatly, improved the response speed of brushless excitation system; (2) feedback signal of this excitation regulation device input adopts separate unit generator commutation output voltage u
dWith load current i
d(a) when the multiphase generator rectification is output as pressure constant state, the voltage feedback signal of process proportional integral circuit computing combines with the current feedback signal through the computing of self adaptation differential circuit, removes directly to control the field supply of excitation generator; (b) when the multiphase generator rectification is output as constant current state, use current feedback signal separately, through behind the adaptive proportional-integral-differential circuit computing, directly control the field supply of excitation generator.(c) adaptive control of this excitation unit is meant that the multiplication factor of current feedback can adapt to the variation of generator loading electric current automatically.(3) this device adopts the circuit that voltage/frequency converter (V/F) and frequency/voltage converter (F/V) combine with high speed photo coupling, has solved the anti-interference problem of direct voltage buffer circuit, has improved the operational precision of voltage feedback signal.These measures have solved the technological difficulties that polyphase synchronous generator commutation system restriction condition is many, performance requirement is high, system complex is brought effectively, guaranteed that this device can eliminate the system's natural oscillation that causes owing to generator parameter is improper, be implemented in stable operation in whole loading ranges, and other static state and the dynamic property of the system of assurance are unaffected.
The invention will be further described below in conjunction with accompanying drawing.Accompanying drawing 1(multiphase generator commutation system sketch) and accompanying drawing 2(stabilizing arrangement schematic diagram) be one embodiment of the present of invention.In the accompanying drawing 2: (1) linear power amplifier T3, T4 are connected in the excitation generator field circuit, are equivalent to excitation generator excitation and are powered by controlled current source.Its loop time constant reduces greatly, and the L/R during by the voltage Parallel Control becomes the L/(R of electric current series connection control
Ce+ R), R
CeDynamic electric resistor for T3, T4 series connection back equal set electrode-emitter is generally hundreds of K Ω.(2) when multiphase generator constant voltage output services state, coupled switch K1, K2, K3, K4 are combined to the position set, take out rectifier output voltage signal u by voltage divider (R1, W1)
d,, be added to amplifier A4 input and reference signal V earlier through the V/F-F/V buffer circuit
Ce4Comparison is after the proportional integral computing; While load current signal i
dBy Hall element CMPA1 sampling, after the computing of self adaptation differential circuit, be added to amplifier A input, two paths of signals is comprehensive, after amplifying, removes to control output power amplifier T3, T4.(3) when multiphase generator constant current output services state, K1, K2, K3, K4 are combined to position " 2 ", current signal i
dAfter the CMPA2 sampling, by self adaptation proportional-integral-differential (PID) the computing circuit computing that A4 and A form, independent control power amplifiers T3, T4 after amplifying.(4) CMPA3 and CMPA4 are respectively to current signal i
dSampling goes to change the multiplication factor of amplifier A1 and A through the photoelectricity coupling circuit, and to guarantee generator under different conditions, stabilizing arrangement can change signal amplification factor automatically with the variation of load current id.
Claims (3)
1, a kind of stabilizer for multi-phase synchronous generator by excitation generator excitation with rectification load, comprise: the voltage check device (R1 that is used for detecting described rectification load voltage, W1), be used for above-mentioned detected voltage and thereby a fiducial value compares and the gained error signal is carried out the proportional integral computing export the device of first control signal (A4), it is characterized in that also comprising: the device (CMPA1) that is used for detecting described rectification load electric current, be used for thereby described detected electric current is carried out the device (A1) that self adaptation is differentiated and exported second control signal, thereby be used for that described first control signal and described second control signal are carried out condensation and export the device of the 3rd control signal (A), and be connected on the device (T3 that described the 3rd control signal of response in the winding circuit of excitation generator magnetic field is directly controlled the field supply of excitation generator, T4).
2, a kind of stabilizer for multi-phase synchronous generator by excitation generator excitation with rectification load, comprise: the current sensing means (CMPA2) that is used for detecting described rectification load electric current, be used for above-mentioned detected electric current and a fiducial value compares and thereby the gained error signal is carried out the device (A4) that first control signal is exported in ratio each minute computing, it is characterized in that also comprising: thus described first control signal is carried out the device (A) that self adaptation is differentiated and exported second control signal, and be connected in the winding circuit of excitation generator magnetic field the device (T3 that described the 3rd control signal of response is directly controlled the field supply of excitation generator, T4).
3, device as claimed in claim 1 is characterized in that also being connected with between described voltage check device and the described device that error signal is carried out the proportional integral computing voltage isolation device that is made of electric voltage/frequency converter (V/F) and frequency (F/V) and Light Coupled Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113427 CN1027779C (en) | 1992-11-16 | 1992-11-16 | Stabilizer for multi-phase synchronous generator with rectification load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113427 CN1027779C (en) | 1992-11-16 | 1992-11-16 | Stabilizer for multi-phase synchronous generator with rectification load |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1083283A CN1083283A (en) | 1994-03-02 |
| CN1027779C true CN1027779C (en) | 1995-03-01 |
Family
ID=4946396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113427 Expired - Fee Related CN1027779C (en) | 1992-11-16 | 1992-11-16 | Stabilizer for multi-phase synchronous generator with rectification load |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1027779C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102611376A (en) * | 2012-03-09 | 2012-07-25 | 方平 | Control coil current differential feedback based controller for electromechanical transducer |
| CN107168437B (en) * | 2017-07-04 | 2019-06-11 | 中国科学技术大学 | A bipolar current source |
-
1992
- 1992-11-16 CN CN 92113427 patent/CN1027779C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1083283A (en) | 1994-03-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4686442A (en) | Dual voltage electrical system | |
| US6069431A (en) | Synchronous generator | |
| JP2001086739A (en) | Multi-frequency switching power supply | |
| WO1995028031A1 (en) | Method and apparatus for controlling induction motors | |
| US6359412B1 (en) | Commutation apparatus and method for a four state sensorless switched reluctance machine system utilizing machine winding current sensing | |
| US4091319A (en) | Method and apparatus to recharge a battery aboard an electric vehicle | |
| US4321478A (en) | Auxiliary power supply with kinetic energy storage | |
| US6310417B1 (en) | Hybrid-secondary uncluttered induction machine | |
| CN1027779C (en) | Stabilizer for multi-phase synchronous generator with rectification load | |
| JPH0932564A (en) | Exhaust energy recovering device | |
| US3042850A (en) | Electrical field excitation circuits for alternators | |
| CN107636944A (en) | Dc bus ripple is reduced | |
| SU594571A1 (en) | Electrodynamic dc-to-ac converter | |
| SU738060A1 (en) | Power-diode electric motor | |
| JP2867397B2 (en) | Inverter device for motor drive | |
| JPH0456556B2 (en) | ||
| JPS583571A (en) | Current detecting circuit | |
| SU1511161A1 (en) | Traction electric drive for vehicle | |
| SU1185528A1 (en) | A.c.electric drive | |
| SU1754505A1 (en) | Induction motor drive of diesel locomotive auxiliary machinery | |
| SU538468A1 (en) | Device for limiting the minimum excitation of a synchronous machine | |
| JPS5833988A (en) | Brushless dc motor | |
| SU1429273A1 (en) | A.c. electric drive | |
| ES8404818A1 (en) | Control of a phase-sequence invertor on a converter-supplied asynchronous machine | |
| SU1577069A1 (en) | Generator source of electric energy |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CI01 | Correction of invention patent gazette |
Correction item: Termination of patent right for invention Correct: delete False: 92113427.4 Number: 1 Page: 132 Volume: 14 |
|
| ERR | Gazette correction |
Free format text: CORRECT: INVENTION AFFAIRS CESSATION OF PATENT RIGHT; FROM: 92113427.4 TO: DELETED |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |