EP1034616A1 - Procede et dispositif pour la regulation de puissance dynamique d'une machine synchrone polyphasee menee - Google Patents

Procede et dispositif pour la regulation de puissance dynamique d'une machine synchrone polyphasee menee

Info

Publication number
EP1034616A1
EP1034616A1 EP98962264A EP98962264A EP1034616A1 EP 1034616 A1 EP1034616 A1 EP 1034616A1 EP 98962264 A EP98962264 A EP 98962264A EP 98962264 A EP98962264 A EP 98962264A EP 1034616 A1 EP1034616 A1 EP 1034616A1
Authority
EP
European Patent Office
Prior art keywords
value
load angle
actual
power
stator
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.)
Withdrawn
Application number
EP98962264A
Other languages
German (de)
English (en)
Inventor
Franz Karlecik-Maier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1034616A1 publication Critical patent/EP1034616A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/005—Machines with only rotors, e.g. counter-rotating rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/26—Means for adjusting casings relative to their supports
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/10—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load
    • H02P9/105—Control effected upon generator excitation circuit to reduce harmful effects of overloads or transients, e.g. sudden application of load, sudden removal of load, sudden change of load for increasing the stability

Definitions

  • the invention relates to a method and a device for dynamic power control of a driven multi-phase synchronous machine.
  • the subject of power oscillations in a controlled synchronous machine has existed since the beginning of power plant construction.
  • the rotating mass of the turbo set forms in cooperation with that connected via a grid reactance
  • the asynchronous torque of the generator is proportional to the slip of the generator and therefore counteracts a change in the magnet wheel angle. A higher asynchronous torque therefore increases the damping.
  • the asynchronous torque mainly depends on the dimensions of the generator. However, the increased performance of the generators is due to the increased cooling of the active windings and is achieved less by larger dimensions, the asynchronous torque is reduced in comparison to the synchronous torque and the internal damping of the system becomes weaker.
  • Voltage regulators with high amplification react so massively to the voltage changes resulting from the oscillations that they impart additional transient torques to the turbo set via the excitation. Although these have a voltage-supporting effect, they have an opposite effect on the active power output and have a destabilizing effect, hence the natural vibration of the turbo set. This damping can lead to instability of the turbo set regardless of the so-called network configuration.
  • the turbo set is primarily controlled by the turbine controller, consisting of a power and a speed controller, and the voltage controller.
  • the turbine controller acts on the control valves, which regulate a gas or steam mass flow to the turbine.
  • the frequency statics can counteract slow changes in the network frequency. With frequencies zen above 0.1 Hz ... 0.2 Hz, however, it cannot intervene due to the limited dynamics of the valves.
  • the voltage regulator has the task of keeping the terminal voltage of the generator as constant as possible and thus making it independent of external disturbances.
  • a high control quality of the voltage regulation is an important requirement.
  • the dynamics of the voltage regulation cannot be increased arbitrarily.
  • This pendulum damping device also known as the "Power System Stabilizer”, mainly works by energizing the synchronous generator.
  • This pendulum damping device is known, for example, from the article “Damping power oscillations by influencing the generator excitation", printed in the DE magazine “Siemens Energytechnik", volume 3, 1981, volume 1, pages 8 to 12. It is disadvantageous that an additional control device must be used for the pendulum damping, that the voltage regulator regulating the turbo set must be matched.
  • the invention is based on the object of specifying a method and a device for dynamic power control of a driven synchronous machine.
  • dynamic power control can be carried out by means of dynamic load angle control.
  • the dynamic behavior of the load angle is mainly determined by the integration of the difference between mechanical and electrical ment determined.
  • the integration time corresponds to the start-up time constant of the unit, consisting of the driven machine and the rotor of the synchronous machine.
  • a load angle setpoint and a load angle actual value are required for such a dynamic load angle control.
  • the load angle setpoint can be generated by means of a superimposed power control as a function of a predetermined power setpoint and an actual power value determined from a determined stator voltage space vector and a determined stator current space vector.
  • the actual load angle value is equal to the comparison value of two asynchronous partial load angles, which are determined in each case as a function of a determined mains voltage space vector and an actual position value of the rotor or the stator of the synchronous machine. These two asynchronous partial load angles each indicate the relative position of the stationary voltage space vector and the pole wheel voltage space vector of the synchronous machine with respect to a mains voltage space vector (reference space vector). The difference between these two asynchronous partial load angles results in the actual load angle value.
  • a manipulated variable for the variable-speed drive is generated as a function of the load angle setpoint and the actual load angle value, which is converted into control signals of this variable-speed drive using a pulse-width-modulated method.
  • This control of the variable-speed drive causes the stator of the synchronous machine to rotate in the direction of rotor rotation or in the opposite direction of the rotor. As a result, the actual load angle value is regulated to the nominal load value.
  • a stochastically driven synchronous machine In the case of a stochastically driven synchronous machine, the pole wheel voltage space vector changes its position relative to the stator voltage space vector, which is noticeable in a power fluctuation. These stochastic power fluctuations are corrected by the dynamic rotation of the stator of the synchronous machine. Thus, a stochastically driven synchronous machine can deliver constant power.
  • the device for dynamic power control of a driven synchronous machine comprises, on the one hand, a device for determining a load angle actual value, a device for determining a load angle setpoint and a load angle control circuit with a downstream control set, and, on the other hand, a synchronous machine, the stand of which rotates by means of a variable-speed drive and a transmission can be.
  • the device for determining an actual load angle value is connected on the one hand to outputs of two position sensors, which are connected on the input side to a rotor and a stator of the synchronous machine, and on the other hand to a voltage measurement value acquisition.
  • the device for determining a load angle setpoint is supplied with actual voltage values, actual current values and a power setpoint.
  • a manipulated variable is generated by means of the load angle control circuit, which is converted into control signals of the variable-speed drive by means of the downstream tax rate, whereby the stator of the synchronous machine is rotated relative to its rotor until the actual load angle value with the load angle Setpoint matches.
  • the power output by the driven synchronous machine is therefore equal to a predetermined power setpoint.
  • the synchronous machine has a stator having a multi-phase winding and a rotor.
  • the stand is rotatably mounted and is equipped with a gear.
  • Each winding of the multi-phase winding of the stator is electrically connected to a terminal connection of the synchronous machine by means of a slip ring and a brush.
  • the stator and the rotor of this synchronous machine is connected to a position encoder.
  • the transmission is connected on the drive side to a variable-speed drive, the control inputs of which are linked to the headset of the device. On the input side, this variable-speed drive is linked to a network on which the driven synchronous machine is to deliver power.
  • the configuration of this synchronous machine in particular of its stand, makes it possible to dynamically compensate for power fluctuations in connection with the device.
  • FIG 2 shows an embodiment of a synchronous machine according to the invention
  • the IG 3 shows a block diagram of a device for determining a load angle actual value
  • FIG. 4 shows a block diagram of a device for determining a load angle setpoint
  • FIG. 5 shows a block diagram of a load angle control circuit
  • FIG. 6 a block diagram of a power Setpoint generator is shown
  • FIG 7 shows a space vector image of the mains, stator and magnet wheel voltage of the synchronous machine
  • FIG. 8 shows a pointer image for the synchronization condition
  • FIG. 9 shows a pointer image for the stationary generator operation of the synchronous machine.
  • 1, 2 is a synchronous machine
  • 4 is a variable-speed drive
  • 6 is a gear
  • 8 is a regulating and control device of a variable-speed drive 4
  • 10 and 12 are position indicators.
  • This synchronous machine 2 has a stator 14 having a multi-phase winding and a rotor 16, in particular an externally excited rotor.
  • the transmission has a gear 18 on the output side and a gear 20 on the drive side.
  • a worm gear is provided as the gear.
  • the rotor 16 of this synchronous machine 2 and the drive-side gear 20 are each connected to a position encoder 10 and 12.
  • the drive-side gear 20 is also connected to a servomotor 22 of the variable-speed drive 4.
  • This servomotor 22 is fed by means of a converter 24 from a network 26 into which the power P generated by the driven synchronous machine 2 is fed.
  • a circuit breaker 28 is arranged on the stand side between the synchronous machine 2 and the network 26.
  • a voltage measurement value acquisition 30 is arranged in the network 26, can be determined with the mains phase voltage U NR , u NS and u m .
  • the synchronous machine 2 On the stator side, the synchronous machine 2 has a voltage and current measured value acquisition 32 and 34, with which the stator voltages U IR , uis, u ⁇ and the stator currents i ⁇ R , i ls , i l ⁇ are measured.
  • a voltage intermediate circuit converter is provided as converter 24, which has an uncontrolled line-side converter 36, a voltage intermediate circuit 38 and a pulse converter 40 on the load side. Such a converter 24 with a servomotor 22 connected downstream is known from drive technology.
  • the regulating and control device 8 has a device 42 for determining an actual load angle value ⁇ , a device
  • the device 44 to determine a load angle setpoint ⁇ *, a load angle control circuit 46 and a headset 48.
  • the device 42 for determining an actual load angle value ⁇ is linked on the one hand to the outputs of the position sensors 10 and 12 and on the other hand to the voltage measurement value acquisition 30.
  • the block diagram of an embodiment of this device 42 is shown in more detail in FIG.
  • Determination of a load angle setpoint value ⁇ * is linked to the voltage measurement value acquisition 32 and to the current measurement value acquisition 34.
  • this device 44 is supplied with a predetermined power target value P *.
  • the block diagram of an embodiment of this device 44 is shown in more detail in FIG.
  • the load angle control circuit 46 is on the input side with an output of the device 42 for determining an actual load angle value ⁇ and with an output of the device 44 for determining a load angle setpoint value ⁇ * and on the output side linked to an input of the downstream tax rate 48.
  • a generated manipulated variable S y is present at the output of this load angle control circuit 46 and means of the tax rate 48 is converted into control signals S v for the converter 24 of the variable-speed drive 4.
  • FIG. 2 shows an embodiment of a synchronous machine 2 according to the invention in more detail.
  • the stator 14 of this synchronous machine 2 is rotatably mounted and its windings 48 are each electrically conductively connected to a slip ring 50 and a brush 52 with a terminal connection of the synchronous machine 2.
  • the rotatable mounting of the stator 14 of the synchronous machine 2 is not shown in detail for reasons of clarity.
  • the output-side gear 18 of the transmission 6 surrounds the stator 14 and is non-positively connected to its outer surface.
  • the drive-side gear 20 is non-positively connected to the servomotor 22.
  • the rotor 16 of this synchronous machine 2 is driven by means of a shaft 54, so that this synchronous machine 2 is operated as a generator.
  • the variable-speed drive 4 and the gear 6 the rotatably mounted stator 14 can be rotated in the rotor rotation direction or in the rotor counter-rotation direction.
  • FIG. 3 shows a block diagram of an embodiment of the device 42 for determining an actual load angle value ⁇ .
  • This device 42 has a mains voltage space vector 56 on the input side and a comparator 58 on the output side.
  • the output of the mains voltage space vector 56 is linked to an input of the comparator 58 by means 60 for forming an asynchronous partial load angle ⁇ rotor and ⁇ stand.
  • a second input of these two devices 60 is connected to an output of the position sensors 10 and 12.
  • the mains voltage space vector 56 has two coordinate converters 62 and 64 connected in series.
  • As the input-side coordinate converter 62 is a so-called 3/2 coordinate converter provided. This 3/2-coordinate converter 62 is connected on the input side to at least two outputs of the voltage measurement value acquisition 30.
  • a so-called K / P coordinate converter is provided as the output-side coordinate converter 64, which is linked on the input side to the two outputs of the 3/2-coordinate converter 62.
  • a network voltage space vector u N is present at the K / P coordinate converter 64 and serves as a reference space vector for determining a
  • the 3/2-coordinate converter 62 uses two phase voltages U NR and u NS of the three-phase network 26 to produce two orthogonal voltage components u N ⁇ and u Np of a column-oriented Cartesian coordinate system. These orthogonal voltage components u N ⁇ and u Nß of the mains voltage are converted into polar components magnitude u N
  • the device 60 now generates Li from a pending position signal or L ⁇ iäuf s and an asynchronous part of the load angle from the power line voltage space vector u N he or ⁇ st other (FIG 7).
  • asynchronous partial load angle ⁇ iäufer and ⁇ gt each indicate the relative position of a Polradschreibs space vector u p and a St respectivelyspan- ubens- Space pointer of the synchronous machine 2 with respect to
  • Mains voltage space vector u N again.
  • the rotational speed of the stator voltage space vector u 1 or the pole wheel voltage space vector u p can fluctuate in comparison to the constant rotational speed of the mains voltage space vector u N.
  • These fluctuations are caused by one Double arrow marked in FIG 7.
  • a comparison of these two asynchronous partial load angles ⁇ ufer and ⁇ ⁇ t än of each other results in the actual load angle value ⁇ of the synchronous machine 2 (FIG 7). That is, if the rotational speed of the stator voltage space vector ui or the pole wheel voltage space vector u p fluctuates, the actual load angle value ⁇ also fluctuates.
  • FIG. 4 shows a block diagram of an embodiment of the device 44 for determining a load angle setpoint ⁇ * in more detail.
  • This device 44 has a power control circuit 66, a device 68 for forming an actual power value P, a stator voltage space vector 70 and a stator current space vector 72.
  • the power control circuit 66 consists of a comparator 74 and a PI controller 76.
  • An enable signal S FG is present at a control input of this PI controller 76 and is generated after the power switch 28 is closed.
  • the controller 76 is released by means of this release signal S FG .
  • the inverting input of the comparator 74 is linked to an output of the device 68 for forming an actual power value P.
  • the device 68 for determining an actual power value P is connected on the input side to an output of the two space vector generators 70 and 72.
  • the structure of the space vector generators 70 and 72 corresponds in each case to the structure of the mains voltage space vector 56.
  • the stator voltage space vector 70 is on the input side with outputs of the stator voltage measurement value acquisition 32, whereas the stator current space vector 72 has outputs the stator current measured value acquisition 34 are linked.
  • a microprocessor is advantageously provided as the device 68 for determining an actual power value P, which is made up of the two other standing space vector u 1 and i 1 calculates an actual power value P.
  • the power control circuit 66 generates this actual power value and a predetermined desired power value
  • P * is a load angle setpoint ⁇ * such that a determined power difference ⁇ P becomes zero.
  • This load angle setpoint ⁇ * and the determined load angle actual value ⁇ are fed to the load angle control circuit 46, the load angle setpoint ⁇ * being fed to a non-inverting input and the load angle actual value ⁇ to an inverting input of a comparator 78 according to FIG .
  • this comparator 78 is linked to a P controller 80, at whose output a manipulated variable S y is present. This manipulated variable S y is generated in such a way that a determined load angle difference ⁇ becomes zero.
  • FIG. 6 shows a block diagram of a power setpoint generator 82 in more detail.
  • This setpoint generator 82 is used in a stochastically driven synchronous machine 2.
  • This setpoint generator 82 has a function generator 84 on the input side and a ramp generator 86 on the output side.
  • the function generator 84 is connected on the output side to the input of the ramp generator 86, a wind speed measured value V W n n being present at the input of the function generator 84.
  • a stochastic power setpoint P * is present at the output of the ramp generator 86.
  • An enable signal S FG is present at a control input of the function generator 84 and the ramp generator 86, which is generated after the circuit breaker 28 is closed.
  • the function generator 84 and the ramp generator 86 are started by means of this release signal S FG .
  • 7 shows the pole wheel voltage space vector u p , the
  • the standard voltage space vector u 1 and the mains voltage space vector u N are shown in a stand-oriented Cartesian coordinate system ⁇ , ß. It can be seen from this vector diagram that the asynchronous partial load angles ⁇ iauf e r and ⁇ stand are greater than zero. That is, the Polradwoods space vector u p approaches the stator voltage space vector u x before, whereby a generator mode (effective power output) is in the synchronous machine 2, and the stator voltage space vector ⁇ 1 notifies the power line voltage space vector u N in front, whereby an active power averaging is displayed . Since the partial load angle ⁇ stand is greater than zero in this representation, the actual load angle value ⁇ is smaller than a inferred load value setpoint
  • the stator 14 of the driven synchronous machine 2 must be rotated in the rotor counter-rotating direction until the asynchronous partial load angle ⁇ ⁇ tander is zero. If, for example, the asynchronous partial load angle ⁇ stand equals zero and the actual load angle value ⁇ is greater than a set load angle value ⁇ *, the synchronous machine 2 is driven stochastically. So that this higher power can be delivered to the network 26, the stator 14 of the driven synchronous machine 2 must be rotated in the rotor direction of rotation until the actual load angle value ⁇ corresponds to a desired load angle value ⁇ *.
  • the proposed concept enables the under-, over- and synchronous operation of a synchronous machine 2.
  • the asynchronous startup of the driven synchronous machine 2 must first be completed.
  • the individual steps up to the closing of the circuit breaker 28 are explained for a stochastically driven synchronous machine 2.
  • the actual load angle value ⁇ only depends on the asynchronous partial load angle ⁇ i ufer , because the stator 14 is still standing and the associated asynchronous partial load angle ⁇ ⁇ t ä n is zero.
  • the asynchronous run-up load angle actual value ⁇ shows the current phase position between the mains voltage space vector u N and the pole wheel voltage space vector u p , which have different angular velocities. If the stochastic mechanical moment the aggregate, for example consisting of a propeller and the rotor 18 of the synchronous machine 2, on speed values that; 0.8 pu of the synchronous speed are accelerated, the voltage regulation and the angle regulation are released. The voltage regulation regulates the amount of
  • Stander voltage u 1 to the value of the mains voltage u N.
  • the power control is blocked and the load angle setpoint ⁇ * is zero.
  • the angle control will rotate the stator 14 such that the actual load angle value ⁇ becomes zero. Because the angular velocity of the mains voltage space vector u N is higher than that of the pole wheel voltage space vector u p , the angular control will rotate the stator 14 of the driven synchronous machine 2 in the rotor counter-direction of rotation in such a way that the two space vectors u N and u p rotate synchronously (FIG 8).
  • the circuit breaker 28 can be closed and the sub-synchronous operation can begin. With the closing of the circuit breaker 28 the power control and the power setpoint generator 82 are released. As a result of this switch-on condition for the circuit breaker 28, the driven synchronous machine 2 can be connected to the network 26 without bumps.
  • the PI controller 76 of the power control circuit 66 will slowly increase the load angle setpoint ⁇ * in accordance with the predetermined ramp of the ramp generator 86 of the power setpoint generator 82 and the prevailing wind speed. This increases the active power to the desired power setpoint P *.
  • the classic synchronous operation is achieved when the stator 14 of the driven synchronous machine 2 is no longer rotated by the device 8 because the pole wheel voltage space pointer u p and the stator voltage space pointer u ⁇ rotate synchronously without outside help.
  • the rotational speed of the pole wheel voltage space vector u p is higher than the rotational speed of the stator voltage space vector u 1 . Therefore, the device 8 will rotate the stator 14 of the driven synchronous machine 2 in the direction of rotation of the rotor so that the two space pointers u p and u x continue to rotate synchronously.
  • the power fluctuations or fluctuations around a power setpoint P * are corrected by the device 8 in connection with the embodiment of the synchronous machine 2, regardless of whether the operation is under, over or classic synchronous operation and regardless of the excitation location (Machine or network) of the fault.
  • this concept offers better dynamic pendulum damping than is possible with a commercially available pendulum damping device because this direction 8 acts on the actual load angle value ⁇ and can thereby also cause stationary changes in output.
  • the device 8 for dynamic power control can be used for a stochastically driven synchronous machine 2, under-, over- and synchronous operation of the synchronous machine 2 being possible, as a result of which a higher power yield of a wind power plant is made possible.
  • the short-circuit power is increased by a direct three-phase connection of such a stochastically driven synchronous machine 2 to the three-phase network.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour la régulation de puissance dynamique d'une machine synchrone menée. L'invention est caractérisée en ce qu'en fonction des valeurs réelles de position (L1, Ls) de la machine synchrone (2) et d'un vecteur tridimensionnel calculé, associé à la tension du réseau (uN), une valeur réelle d'angle de charge (δ) est déterminée et est réglée, par rotation du stator (14) de la machine synchrone menée (2), à une valeur de consigne (δ*) de l'angle de charge, déterminée en fonction d'une régulation de puissance. De cette façon, des variations pendulaires de puissance effective d'une machine synchrone menée (2) peuvent être complètement réglées.
EP98962264A 1997-11-28 1998-11-16 Procede et dispositif pour la regulation de puissance dynamique d'une machine synchrone polyphasee menee Withdrawn EP1034616A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1997152940 DE19752940C2 (de) 1997-11-28 1997-11-28 Verfahren und Vorrichtung zur dynamischen Leistungsregelung einer angetriebenen mehrphasigen Synchronmaschine
DE19752940 1997-11-28
PCT/DE1998/003352 WO1999029036A1 (fr) 1997-11-28 1998-11-16 Procede et dispositif pour la regulation de puissance dynamique d'une machine synchrone polyphasee menee

Publications (1)

Publication Number Publication Date
EP1034616A1 true EP1034616A1 (fr) 2000-09-13

Family

ID=7850194

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98962264A Withdrawn EP1034616A1 (fr) 1997-11-28 1998-11-16 Procede et dispositif pour la regulation de puissance dynamique d'une machine synchrone polyphasee menee

Country Status (3)

Country Link
EP (1) EP1034616A1 (fr)
DE (1) DE19752940C2 (fr)
WO (1) WO1999029036A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19827261C1 (de) * 1998-06-18 2000-03-02 Siemens Ag Verfahren und Vorrichtung zur Ausregelung von Leistungsschwankungen eines Generators
DE102009034644A1 (de) 2009-07-24 2011-02-17 Jacob, Christian E., Dr. Ing. Verfahren und Einrichtung zur Spannungs- und Blindleistungsregelung der elektrisch erregten Synchronmaschine mit einer besonders robusten Anpassung an ihren nichtlinearen Magnetkreis
EP2814169A1 (fr) * 2013-06-12 2014-12-17 Siemens Aktiengesellschaft Procédé destiné au fonctionnement d'une machine synchrone
EP2814168A1 (fr) * 2013-06-12 2014-12-17 Siemens Aktiengesellschaft Procédé destiné au fonctionnement d'une machine synchrone
AT515058B1 (de) 2013-10-30 2017-03-15 Ge Jenbacher Gmbh & Co Og Verfahren zum Betreiben eines mit einem Energieversorgungsnetz verbundenen Generators

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9929036A1 *

Also Published As

Publication number Publication date
DE19752940A1 (de) 1999-06-02
WO1999029036A1 (fr) 1999-06-10
DE19752940C2 (de) 1999-11-18

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