WO2014045348A1 - 界磁巻線式回転電機 - Google Patents
界磁巻線式回転電機 Download PDFInfo
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- WO2014045348A1 WO2014045348A1 PCT/JP2012/073892 JP2012073892W WO2014045348A1 WO 2014045348 A1 WO2014045348 A1 WO 2014045348A1 JP 2012073892 W JP2012073892 W JP 2012073892W WO 2014045348 A1 WO2014045348 A1 WO 2014045348A1
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- field current
- field
- unit
- current limit
- predetermined
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Classifications
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- 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
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L15/00—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles
- B60L15/02—Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles characterised by the form of the current used in the control circuit
-
- 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
- H02P29/00—Arrangements for regulating or controlling electric motors, appropriate for both AC and DC motors
- H02P29/60—Controlling or determining the temperature of the motor or of the drive
- H02P29/66—Controlling or determining the temperature of the rotor
- H02P29/664—Controlling or determining the temperature of the rotor the rotor having windings
-
- 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
- H02P9/14—Arrangements for controlling electric generators for the purpose of obtaining a desired output by variation of field
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/425—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/40—Drive Train control parameters
- B60L2240/42—Drive Train control parameters related to electric machines
- B60L2240/429—Current
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L2240/00—Control parameters of input or output; Target parameters
- B60L2240/80—Time limits
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/64—Electric machine technologies in electromobility
Definitions
- the present invention relates to a field winding type rotating electrical machine that is mainly mounted on a vehicle and has a control device.
- a vehicular rotating electrical machine is mounted in an engine room. Therefore, the operating temperature of the vehicular rotating electrical machine is extremely high.
- the internal temperature of the vehicular rotating electrical machine further increases due to heat generated when the vehicular rotating electrical machine performs operations such as power generation and driving. Therefore, if the temperature of the vehicular rotating electrical machine rises excessively due to continuous operation for a long time, a failure may occur in the vehicular rotating electrical machine due to damage to internal components.
- the AC generator or its ambient temperature is measured as a means for preventing the vehicle AC generator from being damaged due to a temperature rise, and the temperature is preliminarily measured.
- a method has been proposed in which the AC generator output current is limited to reduce the thermal burden on the control device (see, for example, Patent Document 1). .
- the temperature of the vehicle alternator is detected by a temperature sensor, and the field current is limited, thereby the vehicle AC generator. The machine is protected from temperature rise.
- Patent Document 2 when the state where the field current flowing through the field winding is a predetermined threshold value or more continues for a predetermined time, the field current to be energized is limited to a range where there is no damage due to heat generation. To prevent excessive temperature rise.
- the present invention has been made in order to solve the above-described problem, and does not require a temperature sensor. By limiting the field current flowing in the field winding, the temperature rise is suppressed and the engine is restarted. For the purpose of providing a field winding type rotating electrical machine that can output the normal output as much as possible in the situation where the output of the normal operation is large and the influence on the behavior of the vehicle is large. Yes.
- the field winding type rotating electrical machine includes a motor / generator having a field winding, a field current detecting unit for detecting a field current flowing in the field winding, and controlling the field current.
- a field current limiter that calculates a determination value based on the field current detected by the field current control unit and the field current detection unit, and determines whether the determination value has reached a predetermined determination threshold.
- a field current limit unit including a field current limit command unit that generates a field current limit command so as to limit the field current to a predetermined allowable value or less; During the field current limit release time, the field current is released so as to release the field current limit.
- a field current limit release unit that outputs a limit release command, and the field current limit unit, when receiving the field current limit release command from the field current limit release unit, During the current limit release time, the field current limit is released.
- the field current flowing in the field winding can be monitored and the field current can be limited so that the temperature of the field winding type rotating electrical machine does not rise excessively.
- a field winding type rotating electrical machine capable of releasing the restriction of the field current within a predetermined time in a situation where the vehicle needs a normal output even in a state where the restriction is performed is obtained. be able to.
- FIG. 3 is a configuration diagram of a field current limiting unit and a field current limit releasing unit in FIG. 2 of Embodiment 1 of the present invention. It is a time chart for demonstrating operation
- Embodiment 1 FIG.
- a field winding type rotary electric machine according to Embodiment 1 of the present invention will be described with reference to FIGS.
- FIG. 1 is a schematic configuration diagram showing a case where the field winding type rotary electric machine according to the first embodiment is mounted on a vehicle.
- the field winding type rotary electric machine 40 includes an internal combustion engine 10. Are connected to each other through a coupling means 20 such as a belt and a pulley.
- the storage battery 30 is electrically connected to the field winding type rotating electrical machine 40.
- the field winding type rotating electrical machine 40 may be directly coupled to the internal combustion engine 10 without the coupling means 20.
- the internal combustion engine 10 is not limited to either a gasoline engine or a diesel engine.
- the storage battery 30 may be dedicated to the field winding type rotating electrical machine 40 or may be shared with other vehicle loads other than the field winding type rotating electrical machine 40.
- FIG. 2 is a configuration diagram of the field winding type rotating electrical machine. As shown in FIG. 2, the field winding type rotary electric machine is roughly divided into three parts. These are the motor / generator 50, the power converter 60, and the controller 70. A storage battery 30 is connected to the power conversion unit 60 and is supplied with power from the outside.
- the motor / generator 50 includes an armature winding 51, a field winding 52, and a current detector 53 that are three-phase Y-shaped or ⁇ -shaped.
- the motor / generator 50 may use an armature winding other than three phases.
- an operation mode which changes according to the external command 160 which is an operation command from the outside it has the operation mode of a stop, electric power generation, and a drive.
- the power conversion unit 60 is a switching circuit for power conversion connected to each phase of the field winding current switching element 61, the flywheel diode 62 and the armature winding 51 connected to the field winding 52 by a three-phase inverter. Elements 63a to 63c and 64a to 64c are provided.
- the control unit 70 includes a gate drive unit 80, a drive control unit 90, a power generation control unit 100, a field current control unit 110, a field current detection unit 120, a field current command unit 130, a field current limit unit 140, and a field The magnetic current limit release unit 150 is configured.
- the gate drive unit 80 Based on the ON / OFF commands to the armature winding 51 and the field winding 52 sent from the drive control unit 90, the power generation control unit 100, and the field current control unit 110, the gate drive unit 80 The winding current switching element 61 and the power conversion switching elements 63a to 63c and 64a to 64c are driven to drive or control the power generation of the motor / generator 50.
- the drive control unit 90 controls the ON / OFF timing of the power conversion switching elements 63a to 63c and 64a to 64c when the motor / generator 50 is driven.
- the power generation control unit 100 controls the ON / OFF timing of the power conversion switching elements 63a to 63c and 64a to 64c when performing synchronous rectification when the motor / generator 50 generates power.
- the field current detector 120 detects the field current I flowing through the field winding 52 by the current detector 53.
- the field current command unit 130 transmits a field current command value If with the field current I as a control target to the field current control unit 110.
- the field current limiting unit 140 determines whether or not to limit the field current I based on the field current I detected by the field current detection unit 120. As a result, when it is determined that the field current I needs to be limited, the field current limiting unit 140 transmits the field current limit value I lim to the field current control unit 110.
- the field current limit release unit 150 instructs the field current limit unit 140 to release the limit of the field current I based on the stop, power generation, and drive operation commands from the external command 160.
- the field current control unit 110 when the field current control unit 110 receives the field current limit value I lim from the field current limit unit 140, the field current control unit 110 sets the field current limit value I lim as a control target value to the field winding 52. A signal for controlling the flowing field current I is sent to the gate drive unit 80. However, when the field current command value I f is smaller than the field current limit value I lim , that is, when the field current command value I f ⁇ the field current limit value I lim , the field current I Is sent to the field current command value If . Incidentally, the field current control unit 110, when not receiving the field current limiting value I lim from the field current limiting unit 140 is always based on the field current command value I f, flows to the field winding 52 A signal for controlling the field current I is transmitted.
- FIG. 3 is a configuration diagram of the field current limiting unit 140 and the field current limit releasing unit 150 of the field winding type rotary electric machine.
- the field current limiting unit 140 includes a storage unit 141, a field current limit determination unit 142, and a field current limit command unit 143.
- the storage unit 141 includes a field current threshold storage unit 141a, a field current integration threshold storage unit 141b, a field current limit value storage unit 141c, and a field current limit time storage unit 141d.
- the field current limit determination unit 142 includes a field current integration unit 142a
- the field current limit command unit 143 includes a field current limit time measurement unit 143a.
- the field current threshold value storage unit 141a stores the first field current threshold value I th1 and the second field current threshold value I th2 set to a value smaller than the first field current threshold value I th1.
- the first and second field current thresholds I th1 and I th2 are in a relationship of first field current threshold I th1 > second field current threshold I th2 .
- the field current integration threshold value storage unit 141b is connected to a field current limit determination unit 142 and stores a field current integration threshold value S th in advance.
- the field current limit value I lim is stored in advance in the field current limit value storage unit 141c.
- the field current limit time T lim of the field current I is stored in advance.
- the field current limit release unit 150 includes a field current limit release time storage unit 151 and a field current limit release command unit 152.
- the field current limit release command unit 152 includes field current limit release time measuring means 152a.
- the field current limit release time T C set in accordance with the elapsed time since the field current limit unit 140 started limiting the field current I is stored. Is stored in advance.
- the field current limit release time T C is set to be equal to or less than a time during which operation can be performed without limitation from the state when the field current I is limited by the limit elapsed time, that is, failure due to overheating does not occur.
- FIG. 4 is a time chart showing changes over time in the field current and field current integrated value in the field current limiting unit 140.
- Field current limiting determination section 142 when the field current I> first field current threshold value I th1, the field current I and the field current difference [Delta] I 1 of the first field current threshold value I th1 Add (integrate in the positive direction) to the integral value S. Conversely, the field current limit determination unit 142 determines that the difference ⁇ I 2 between the second field current threshold value I th2 and the field current I when the field current I ⁇ the second field current threshold value I th2. Is subtracted from the field current integrated value S (integrated in the negative direction). Further, the field current limit determination unit 142 determines that the field current I ⁇ the first field current threshold I th1 and the field current I ⁇ the second field current threshold I th2 The field current integral value S is maintained.
- the field current limit determination unit 142 determines that the field current I needs to be limited when the field current integration value S> the field current integration threshold value S th . Then, field current limit determination unit 142 transmits the determination result to field current limit command unit 143.
- FIG. 5 is a time chart showing time variations of the field current, the field current integrated value, and the field current limit time counter when the field current is limited in the field current limiter 140.
- the field current limit command unit 143 determines that it is necessary to limit the field current I based on the determination result of the field current limit determination unit 142
- the field current limit command unit 143 reads from the field current limit value storage unit 141c.
- a field current limiting value I lim obtains the field current limiting time T lim from field current limiting time storage unit 141d, sets a field current limiting time T lim to field current limiting time counter C lim (lower See formula).
- C lim T lim
- the field current limit command unit 143 transmits the field current limit value I lim to the field current control unit 110 during the field current limit time T lim .
- the field current control unit 110 that has received the field current limit value I lim converts the field current I to the value of the field current limit value I lim (however, the field current command value I f ⁇ field current limit While satisfying the relationship of the value I lim, the field current command value If is controlled.
- the second field current threshold I th2 is set so that the temperature of the field winding type rotating electrical machine 40 is within a normal range when the field winding type rotating electrical machine is continuously operating. Yes.
- the field current limit value I lim is set to be equal to or less than the second field current threshold I th2 . Thereby, the temperature of the field winding type rotary electric machine 40 can be more reliably lowered to a temperature at which normal operation is possible.
- the field current limit determination unit 142 clears the field current integration value S and sets it to 0 (zero) when the field current integration value S exceeds the field current integration threshold Sth .
- the field current limit command unit 143 starts the limit of the field current I, and when the field current limit time T lim has elapsed, the field current limit value I lim of the field current control unit 110 is set. Stop sending. That is, the restriction of the field current I is released, and the field current I is controlled based on the field current command value If .
- FIG. 6 shows the field current, the field current integrated value, and the field current when a field current limit release command is received from the field current limit release unit 150 during the field current limit in the field current limit unit 140. It is a time chart which shows the time change of a time limit counter and a field current restriction release time counter.
- the output is reduced for both power generation and driving compared to the case where the field current I is not limited. For this reason, considering the case where the field current I is limited when the engine is stopped, for example, at the time of idling stop, it is impossible to generate a desired torque originally required for starting the engine. There is a possibility that the vehicle cannot be restarted, which may greatly affect the behavior of the vehicle.
- the field current limit command unit 143 determines the field current limit time counter C. The value of lim is received, the field current limit release time T C is read according to the value, and the field current limit release command is issued during the field current limit release time T C by the limit release time measuring means 152a. It transmits with respect to the instruction
- the field current limit release unit 140 receives a field current limit release command from the field current limit release unit 150, the field current limit release unit 140 releases the restriction of the field current I and performs control with the normal field current value. To do. As a result, the motor or generator 50 can be driven or controlled for power generation in the same state as in the normal state where no restriction is made.
- the field current limit release time T C is set to 0 (zero)
- the field current limit release time T C is changed according to the elapsed time since the field current limiter 140 started limiting the field current I.
- the field current limiter 140 In the case where the field current limit time T lim is variable depending on the value of the field current I being limited, the field current limit time T lim may be set according to the remaining time of the field current I limit.
- the field current restriction release command may be transmitted during the field current restriction release time T C as in the case of driving.
- the field winding type rotating electrical machine includes the motor / generator 50 having the field winding 52 and the field current detection unit 120 that detects the field current I flowing through the field winding 52.
- a determination value is calculated based on the field current I detected by the field current control unit 110 that controls the field current and the field current detection unit 120, and whether or not the determination value has reached a predetermined determination threshold value
- the field current control unit 110 is informed of the predetermined field.
- a field current limiting unit 140 including a field current limiting command unit 143 that generates a field current limiting command so as to limit the field current I to a predetermined allowable value or less during the magnetic current limiting time T lim ; Predetermined field current limit release time for the magnetic current limiter 140
- a field current limit release unit 150 that outputs a field current limit release command so as to release the limit of the field current I during T C
- the field current limit unit 140 includes a field current limit release unit When receiving a field current restriction release command from 150, the restriction of the field current I is released for a predetermined field current restriction release time T C.
- the field current is determined based on an external command.
- it is determined that it is necessary to remove the restriction it is possible to obtain a field winding type rotating electrical machine capable of minimizing the influence on the vehicle by removing the predetermined time restriction. There is a great effect.
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Abstract
Description
しかしながら、特許文献1に記載の車両用交流発電機の出力制御方法及び出力制御装置では、温度センサにより車両用交流発電機の温度を検出し、界磁電流を制限することによって、車両用交流発電機を温度上昇から保護している。このため、温度センサを搭載する必要があり、車両用交流発電機のコストアップや構造変更が必要となる問題があった。
そこで、特許文献2では界磁巻線に流れる界磁電流が所定の閾値以上の状態が所定時間継続された場合に、通電する界磁電流を発熱による破損がない範囲に制限することによって、過剰な温度上昇を防止するようにしている。
以下、本発明の実施の形態1に係る界磁巻線式回転電機について図1~図6を参照して説明する。
なお、界磁巻線式回転電機40は、内燃機関10と結合手段20を介さず直接結合される場合もある。さらに、内燃機関10は、ガソリンエンジン及びディーゼルエンジンのいずれかに限定されるものではない。また、蓄電池30は、界磁巻線式回転電機40専用であってもよく、界磁巻線式回転電機40以外の他の車両用負荷と共有するものであってもよい。
図2に示すように、界磁巻線式回転電機は、大きく分けて3つの部分で構成されている。モータ・ジェネレータ50、電力変換部60及び制御部70である。電力変換部60には、蓄電池30が接続されており、外部から電力の供給を受けている。
そして、外部からの動作指令である外部指令160に従って遷移する動作モードとして、停止、発電、駆動の動作モードを有している。
制御部70は、ゲート駆動部80、駆動制御部90、発電制御部100、界磁電流制御部110、界磁電流検出部120、界磁電流指令部130、界磁電流制限部140、及び界磁電流制限解除部150から構成されている。
また、駆動制御部90は、モータ・ジェネレータ50を駆動するときの電力変換用スイッチング素子63a~63c、64a~64cのON/OFFのタイミングを制御する。
さらに、発電制御部100は、モータ・ジェネレータ50の発電時に、同期整流を行うときの電力変換用スイッチング素子63a~63c、64a~64cのON/OFFのタイミングを制御する。
ただし、界磁電流指令値Ifが界磁電流制限値Ilimよりも小さい場合、つまり界磁電流指令値If<界磁電流制限値Ilimの関係にある場合には、界磁電流Iを界磁電流指令値Ifに制御する信号を送出する。
なお、界磁電流制御部110は、界磁電流制限部140から界磁電流制限値Ilimを受信しない場合においては、常に界磁電流指令値Ifに基づいて、界磁巻線52に流す界磁電流Iを制御する信号を送出する。
界磁電流制限部140は、記憶部141、界磁電流制限判定部142及び界磁電流制限指令部143から構成されている。記憶部141は、界磁電流閾値記憶部141a、界磁電流積分閾値記憶部141b、界磁電流制限値記憶部141c、界磁電流制限時間記憶部141dからなる。
また、界磁電流制限判定部142は、界磁電流積分手段142aを、界磁電流制限指令部143は、界磁電流制限時間計測手段143aを有している。
この界磁電流制限解除時間TCは、界磁電流Iを制限経過時間だけ制限した場合に、その状態から制限なしで動作可能、つまり過熱による故障が起きない時間以下に設定されている。界磁電流Iの制限を開始してからの経過時間に応じて設定することで、制限開始からの経過時間が長いほど解除時間を長くすることができる。
まず、界磁電流制限判定部142の動作について、図4を参照しながら説明する。
図4は、界磁電流制限部140における界磁電流、界磁電流積分値の時間変化を示すタイムチャートである。
反対に、界磁電流制限判定部142は、界磁電流I<第2の界磁電流閾値Ith2の場合おいて、第2の界磁電流閾値Ith2と界磁電流Iとの差分ΔI2を界磁電流積分値Sから減算(負の方向へ積分)する。
また、界磁電流制限判定部142は、界磁電流I≦第1の界磁電流閾値Ith1であり、かつ界磁電流I≧第2の界磁電流閾値Ith2である場合には、現状の界磁電流積分値Sを維持する。
図5は、界磁電流制限部140における界磁電流を制限している場合の界磁電流、界磁電流積分値及び界磁電流制限時間カウンタの時間変化を示すタイムチャートである。
界磁電流制限指令部143は、界磁電流制限判定部142の判定結果に基づいて、界磁電流Iの制限が必要であると判定された場合には、界磁電流制限値記憶部141cから界磁電流制限値Ilimと、界磁電流制限時間記憶部141dから界磁電流制限時間Tlimを取得し、界磁電流制限時間カウンタClimに界磁電流制限時間Tlimを設定する(下式参照)。
Clim= Tlim
図6は、界磁電流制限部140における界磁電流制限中に、界磁電流制限解除部150から界磁電流制限解除指令を受信した場合の界磁電流、界磁電流積分値、界磁電流制限時間カウンタ及び界磁電流制限解除時間カウンタの時間変化を示すタイムチャートである。
そして、界磁電流制限部140では、界磁電流制限解除部150から界磁電流制限解除指令を受信すると、界磁電流Iの制限を解除し、通常時の界磁電流値にて制御を実施する。これにより、モータ・ジェネレータ50を制限を行わない通常時と同じ状態で、駆動又は発電制御することが可能となる。
40 界磁巻線式回転電機
50 モータ・ジェネレータ
52 界磁巻線
53 電流検出器
60 電力変換部
70 制御部
110 界磁電流制御部
120 界磁電流検出部
130 界磁電流指令部
140 界磁電流制限部
141 記憶部
142 界磁電流制限判定部
143 界磁電流制限指令部
150 界磁電流制限解除部
151 界磁電流制限解除時間記憶部
152 界磁電流制限解除指令部
160 外部指令
Claims (6)
- 界磁巻線を有するモータ・ジェネレータと、
前記界磁巻線に流れる界磁電流を検出する界磁電流検出部と、
前記界磁電流を制御する界磁電流制御部と、
前記界磁電流検出部で検出された前記界磁電流に基づいて判定値を演算し、前記判定値が所定判定閾値に到達したか否かを判定する界磁電流制限判定部と、前記界磁電流制限判定部により前記判定値が前記所定判定閾値に到達したと判定された場合には、前記界磁電流制御部に対して所定の界磁電流制限時間の間、前記界磁電流を所定許容値以下に制限するように界磁電流制限指令を発生する界磁電流制限指令部とを含む界磁電流制限部と、
前記界磁電流制限部に対して、所定の界磁電流制限解除時間の間、前記界磁電流の制限を解除するように界磁電流制限解除指令を出力する界磁電流制限解除部とを備え、
前記界磁電流制限部は、前記界磁電流制限解除部から前記界磁電流制限解除指令を受けた場合は、前記所定の界磁電流制限解除時間の間、前記界磁電流の制限を解除すること
を特徴とする界磁巻線式回転電機。 - 前記界磁電流制限解除部は、前記界磁電流制限部が前記界磁電流の制限を開始してからの経過時間に応じて、前記所定の界磁電流制限解除時間を変化させることを特徴とする請求項1に記載の界磁巻線式回転電機。
- 前記モータ・ジェネレータは外部からの動作指令に従って遷移する少なくとも一つ以上の動作モードを有しており、
前記界磁電流制限解除部は、前記動作指令が所定の動作モードである場合にのみ、前記界磁電流制限部に対して、前記所定の界磁電流制限解除時間の間、前記界磁電流の制限を解除するように指令することを特徴とする請求項1または2に記載の界磁巻線式回転電機。 - 前記所定の動作モードは、前記モータ・ジェネレータの駆動動作モードであることを特徴とする請求項3に記載の界磁巻線式回転電機。
- 前記界磁電流制限解除部は、前記所定の界磁電流制限時間が所定時間以下の場合、前記所定の界磁電流制限解除時間をゼロに設定することを特徴とする請求項1乃至4のいずれか1項に記載の界磁巻線式回転電機。
- 前記界磁電流制限部は、前記所定の界磁電流制限時間を制限中の前記界磁電流の値によって可変とすることを特徴とする請求項1乃至5のいずれか1項に記載の界磁巻線式回転電機。
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JP2014536440A JP5972385B2 (ja) | 2012-09-19 | 2012-09-19 | 界磁巻線式回転電機 |
EP12885163.1A EP2899875B1 (en) | 2012-09-19 | 2012-09-19 | Field-winding rotating electrical machine |
CN201280074455.7A CN104428989B (zh) | 2012-09-19 | 2012-09-19 | 励磁绕组式旋转电机 |
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CN109088443B (zh) * | 2018-08-13 | 2020-06-05 | 华北电力科学研究院有限责任公司 | 励磁调节器的过励限制优化方法及系统 |
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