JPH0398498A - Voltage regulator for permanent magnet type synchronous generator - Google Patents
Voltage regulator for permanent magnet type synchronous generatorInfo
- Publication number
- JPH0398498A JPH0398498A JP1232070A JP23207089A JPH0398498A JP H0398498 A JPH0398498 A JP H0398498A JP 1232070 A JP1232070 A JP 1232070A JP 23207089 A JP23207089 A JP 23207089A JP H0398498 A JPH0398498 A JP H0398498A
- Authority
- JP
- Japan
- Prior art keywords
- permanent magnet
- voltage
- generator
- magnet type
- synchronous generator
- 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.)
- Granted
Links
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 43
- 230000003247 decreasing effect Effects 0.000 abstract description 4
- 230000001965 increasing effect Effects 0.000 abstract description 4
- 230000001105 regulatory effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000005291 magnetic effect Effects 0.000 description 4
- 230000004907 flux Effects 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
Description
この発明は、永久磁石形同期発電機を用いて系統に並列
投入するための、あるいは並列運転時に電圧調整を行う
電圧調整装置に関する。The present invention relates to a voltage regulator that uses a permanent magnet type synchronous generator to connect the permanent magnet synchronous generator in parallel to a power grid or to regulate the voltage during parallel operation.
永久磁石形同期発電機は、回転子に永久磁石を用いて運
転するので励磁装置が不要であり、界磁巻線損失がない
こと、及び冷却するための風量を低減することができる
ので風損を低減できるメリットはあるが、発生電圧は磁
石によって決まるため電圧調整ができない欠点があった
。
第２図は従来の永久磁石形同期発電機の系統図である。
第２図において、永久磁石形同期発電機１は変換器５を
介して電圧を調整し系統２に接続されていた。このため
容量の大きな変換器５を必要とした。
第４図は変換器５を付さない永久磁石形同期発電機Ｉの
系統図で、永久磁石形同期発電機Ｉに遮断器３を介して
系統２に接続すると、系統並列時の発電機電圧は系統電
圧と異なるので、遮断機３によって系統併入するとき突
入電流が流れる欠点があった。Permanent magnet synchronous generators operate using permanent magnets in the rotor, so there is no need for an excitation device, there is no field winding loss, and the amount of air for cooling can be reduced, reducing windage loss. Although it has the advantage of being able to reduce the voltage, it has the disadvantage that the voltage cannot be adjusted because the generated voltage is determined by the magnet. FIG. 2 is a system diagram of a conventional permanent magnet type synchronous generator. In FIG. 2, a permanent magnet type synchronous generator 1 is connected to a system 2 with its voltage adjusted through a converter 5. For this reason, a converter 5 with a large capacity was required. Figure 4 is a system diagram of a permanent magnet type synchronous generator I without a converter 5. When the permanent magnet type synchronous generator I is connected to the system 2 via the circuit breaker 3, the generator voltage when the system is paralleled is Since the voltage is different from the grid voltage, there is a drawback that an inrush current flows when the circuit breaker 3 connects to the grid.
第３図は永久磁石形同期発電機の電圧特性を示す図で、
横軸は負荷電流、縦軸は発電ａ端子電圧を表し、曲線Ａ
は負荷電流が遅れ力率ｃｏｓφ一〇の場合、曲線Ｂは負
荷電流がｃｏｓφ＝１の場合を表す。
永久磁石形同期発電機は、回転子に備えた永久磁石によ
り励磁されるため、発電機自身では励磁調整ができず、
第３図のごとく負荷電流によって端子電圧が決まり、電
圧調整は不可能であった。
この発明は、永久磁石形同期発電機の端子にあらかじめ
定められた電圧を確立し、その後系統に並列投入するか
または並列運転時の電圧を調整するようにした永久磁石
形同期発電機の電圧調整装置を提供することを目的とす
る。Figure 3 is a diagram showing the voltage characteristics of a permanent magnet type synchronous generator.
The horizontal axis represents the load current, the vertical axis represents the power generation terminal a voltage, and the curve A
curve B represents the case where the load current is delayed and the power factor cosφ10, and the curve B represents the case where the load current is cosφ=1. Permanent magnet synchronous generators are excited by a permanent magnet in the rotor, so the generator itself cannot adjust the excitation.
As shown in Figure 3, the terminal voltage was determined by the load current, and voltage adjustment was impossible. This invention provides voltage adjustment of a permanent magnet type synchronous generator in which a predetermined voltage is established at the terminals of the permanent magnet type synchronous generator, and then the voltage is adjusted in parallel to the grid or during parallel operation. The purpose is to provide equipment.
上記目的は、電力系統に並列投入あるいは並列運転する
永久磁石形同期発電機の発生電圧を調整する電圧調整装
置において、前記永久磁石形同期発電機の端子に無効電
流調整装置を設け、この無効電流調整装置により前記永
久磁石形同期発電機の発生電圧を調整するようにした永
久磁石形同期発電機の電圧調整装置によって達威される
。The above object is to provide a voltage regulator for adjusting the voltage generated by a permanent magnet synchronous generator connected or operated in parallel to an electric power system, in which a reactive current regulator is provided at the terminal of the permanent magnet synchronous generator, and the reactive current This is accomplished by a voltage regulating device for a permanent magnet synchronous generator, which adjusts the voltage generated by the permanent magnet synchronous generator using a regulating device.
永久磁石形同期発電機に無効電流調整装置を接続し、こ
の無効電流調整装置に流れる電流を増減すると、同期発
電機の電機子反作用によって同期機空隙の磁束が増減す
ることによって電圧調整ができる。When a reactive current regulator is connected to a permanent magnet synchronous generator and the current flowing through the reactive current regulator is increased or decreased, the voltage can be adjusted by increasing or decreasing the magnetic flux in the synchronous machine air gap due to the armature reaction of the synchronous generator.
第１図はこの発明の実施例による永久磁石形同期発電機
の電圧調整装置を用いた永久磁石形同ル１発電機の系統
図である。第１図において、並列投入に先立って遮断器
３を開き、永久磁石形同期発電機１は原動機４により駆
動され電圧を発生し、永久磁石形同期発電機１の負荷に
他動コンバータあるいは自動コンバータなどの変換器５
の出力端に直流リアクトル６を接続した電流形無効電力
補償装置からなる無効電流調整装置７を接続し、発電機
１の電機子反作用を増減してあらかじめ定められた電圧
を確立し、発電機電圧を系統電圧に一致させて遮断機３
を閉じ、系統２に並列運転する。
永久磁石形同期発電機１は系統２に並列運転時に無効電
力補償装置７により電圧調整をすることができる．
永久磁石形同期発電機の場合には、界磁電流は一定であ
り、回転数を一定に保ち、負荷電流を種々変えた時の三
和同期発電機の端子電圧■は、負荷電流の大きさばかり
でなく、力率によって大きく変わる。電機子巻線に平衡
三和電流が流れると、回転起磁力Ｆ．が生じる。このＦ
，は回転子上を回転子の回転方向と反対に回転子と同じ
速度で回転するから、Ｆ１は固定子に対しては完全に静
止する。したがって界磁起磁力Ｆ，とＦ１とは空間的に
負荷力率により定まるある一定の角を保つ。
そこでギャップに生ずる実際の磁束は、Ｆ，とＦ，の合
成起磁力Ｆ，によって決定される。この磁束によって巻
線に起電力Ｅ，“が生じ、これから電機子電流の漏れイ
ンピーダンス降下（ｒ十ｊｘ）Ｉを差し引いたものが、
負荷時の端子電圧Ｖになる。
漏れインピーダンス降下は実際には小さく、これを無視
すれば端子電圧Ｖは負荷時の実際の誘導起電力Ｅ．に等
しい。このＥ．を内部誘導起電力という。第３図におい
て曲線Ａは誘導性負荷の場合で、この場合はＦ， Ｌ：
Ｆ，一Ｆ．で電機子電流は′６Ｊｉ磁作用をし、したが
ってＶ（ξＥ．）は小になる。曲線Ｂは純抵抗負荷の場
合で、この場合はＦ，とＦ１とはほぼ直交し、電機子電
流は交流磁化作用をしている。
この発明の実施例による電圧調整装置によれば、曲線八
のごとく例えば定格電流の３０％程度の無効電流によっ
て無負荷時の電圧調整が可能である。
または定格運転時には系統が強ければ無効電流調整装置
を断にして運転することも可能である。FIG. 1 is a system diagram of a permanent magnet type synchronous generator using a voltage regulator for a permanent magnet type synchronous generator according to an embodiment of the present invention. In FIG. 1, the circuit breaker 3 is opened prior to parallel connection, the permanent magnet type synchronous generator 1 is driven by the prime mover 4 to generate voltage, and the load of the permanent magnet type synchronous generator 1 is connected to a passive converter or an automatic converter. Converter 5 such as
A reactive current adjustment device 7 consisting of a current type reactive power compensator connected to a DC reactor 6 is connected to the output end of the generator 1, and the armature reaction of the generator 1 is increased or decreased to establish a predetermined voltage, and the generator voltage is match the grid voltage and switch circuit breaker 3.
Close and operate in parallel with system 2. When the permanent magnet type synchronous generator 1 is operated in parallel with the grid 2, the voltage can be adjusted by the reactive power compensator 7. In the case of a permanent magnet type synchronous generator, the field current is constant, and the terminal voltage of the Sanwa synchronous generator when the rotation speed is kept constant and the load current is varied is the magnitude of the load current. Not only that, but it also varies greatly depending on the power factor. When a balanced three-way current flows through the armature winding, a rotational magnetomotive force F. occurs. This F
, rotates on the rotor at the same speed as the rotor in the opposite direction of rotation of the rotor, so F1 is completely stationary with respect to the stator. Therefore, the field magnetomotive forces F and F1 spatially maintain a certain angle determined by the load power factor. The actual magnetic flux generated in the gap is determined by the composite magnetomotive force F of F and F. This magnetic flux generates an electromotive force E,'' in the winding, and the result obtained by subtracting the leakage impedance drop (r + jx) I of the armature current from this is:
The terminal voltage becomes V when loaded. The leakage impedance drop is actually small, and if this is ignored, the terminal voltage V will be the actual induced electromotive force E. be equivalent to. This E. is called internally induced electromotive force. In Figure 3, curve A is for an inductive load, in which case F, L:
F, one F. The armature current has a magnetic effect of '6Ji, and therefore V(ξE.) becomes small. Curve B shows the case of a purely resistive load, in which case F and F1 are almost orthogonal, and the armature current has an alternating current magnetizing effect. According to the voltage regulator according to the embodiment of the present invention, it is possible to adjust the voltage during no-load using a reactive current of, for example, about 30% of the rated current, as shown by curve 8. Alternatively, if the system is strong during rated operation, it is possible to operate with the reactive current regulator turned off.
この発明によれば、電力系統に並列投入あるいは並列運
転する永久磁石形同期発電機の発生電圧を調整する電圧
調整装置において、永久磁石形同期発電機の端子に無効
電流調整装置を設けこの無効電流調整装置により発生電
圧を調整するようにしたので、永久磁石形同期発電機に
変換器を介して電圧を変換することなく発電機の端子電
圧を調整できる。しかも無効電流調整装置の容量は発電
機容量に比べて小容量のものでよい。According to the present invention, in a voltage regulator that regulates the voltage generated by a permanent magnet synchronous generator that is connected or operated in parallel to an electric power system, a reactive current regulator is provided at a terminal of the permanent magnet synchronous generator to adjust the reactive current. Since the generated voltage is adjusted by the adjustment device, the terminal voltage of the generator can be adjusted without converting the voltage to the permanent magnet type synchronous generator via a converter. Moreover, the capacity of the reactive current regulator may be smaller than the generator capacity.
第１図はこの発明の実施例による永久磁石形同朋発電機
の電圧調整装置を用いた永久磁石形同期発電機の系統図
、第２図は従来の永久磁石形同期発電機の系統図、第３
図は永久磁石形同期発電機の電圧特性を示す図、第４図
は変換器を付さない永久磁石形同期発電機の系統図であ
る。
１：永久磁石形同期発電機、２：系統、３：遮断器、４
：原動機、５：変換器、６：リアクトル、７：無効電流
調整装置。Fig. 1 is a system diagram of a permanent magnet type synchronous generator using a voltage regulator of a permanent magnet type Doho generator according to an embodiment of the present invention, and Fig. 2 is a system diagram of a conventional permanent magnet type synchronous generator. 3
The figure shows the voltage characteristics of a permanent magnet synchronous generator, and FIG. 4 is a system diagram of a permanent magnet synchronous generator without a converter. 1: Permanent magnet synchronous generator, 2: Grid, 3: Circuit breaker, 4
: prime mover, 5: converter, 6: reactor, 7: reactive current regulator.
Claims (1)
形同期発電機の発生電圧を調整する電圧調整装置におい
て、前記永久磁石形同期発電機の端子に無効電流調整装
置を設け、この無効電流調整装置により前記永久磁石形
同期同期発電機の発生電圧を調整することを特徴とする
永久磁石形同期発電機の電圧調整装置。1) In a voltage regulator that adjusts the voltage generated by a permanent magnet type synchronous generator that is connected or operated in parallel to an electric power system, a reactive current regulator is provided at a terminal of the permanent magnet type synchronous generator, and the reactive current regulator is provided with a reactive current regulator at a terminal of the permanent magnet type synchronous generator. A voltage adjustment device for a permanent magnet type synchronous generator, characterized in that the voltage generated by the permanent magnet type synchronous generator is adjusted by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232070A JP2720540B2 (en) | 1989-09-07 | 1989-09-07 | Voltage regulator for permanent magnet synchronous generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1232070A JP2720540B2 (en) | 1989-09-07 | 1989-09-07 | Voltage regulator for permanent magnet synchronous generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0398498A true JPH0398498A (en) | 1991-04-24 |
| JP2720540B2 JP2720540B2 (en) | 1998-03-04 |
Family
ID=16933518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1232070A Expired - Fee Related JP2720540B2 (en) | 1989-09-07 | 1989-09-07 | Voltage regulator for permanent magnet synchronous generator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2720540B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007135223A1 (en) * | 2006-05-22 | 2007-11-29 | Verteco Ltd | Permanent magnet generator control |
| JP2012120276A (en) * | 2010-11-30 | 2012-06-21 | Fuji Electric Co Ltd | Electric power conversion system for permanent magnet synchronous generator |
| CN113809881A (en) * | 2020-06-15 | 2021-12-17 | 北京机械设备研究所 | Voltage-stabilizing permanent magnet generator set device and voltage-stabilizing control method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6257600U (en) * | 1985-09-27 | 1987-04-09 |
-
1989
- 1989-09-07 JP JP1232070A patent/JP2720540B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6257600U (en) * | 1985-09-27 | 1987-04-09 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007135223A1 (en) * | 2006-05-22 | 2007-11-29 | Verteco Ltd | Permanent magnet generator control |
| US8072190B2 (en) | 2006-05-22 | 2011-12-06 | The Switch High Power Converters Oy | Permanent magnet generator control |
| JP2012120276A (en) * | 2010-11-30 | 2012-06-21 | Fuji Electric Co Ltd | Electric power conversion system for permanent magnet synchronous generator |
| CN113809881A (en) * | 2020-06-15 | 2021-12-17 | 北京机械设备研究所 | Voltage-stabilizing permanent magnet generator set device and voltage-stabilizing control method |
| CN113809881B (en) * | 2020-06-15 | 2022-11-29 | 北京机械设备研究所 | Voltage stabilization permanent magnet generator set device and voltage stabilization control method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2720540B2 (en) | 1998-03-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9431943B2 (en) | Assembly operating in a variable regime | |
| US4885526A (en) | Compensation circuit for electrical generators | |
| CN101341649A (en) | Alternator | |
| Wang et al. | Analysis of electromagnetic performance and control schemes of electrical excitation flux-switching machine for DC power systems | |
| WO2022161375A1 (en) | Rotor magnetic pole modulation-type induction hybrid excitation brushless motor and power generation system | |
| JP2738605B2 (en) | Magnet generator | |
| CN110739891B (en) | Electric excitation synchronous reluctance brushless power generation system | |
| Schaefer | Excitation control of the synchronous motor | |
| WO2020013015A1 (en) | Variable-speed generator-motor device | |
| Pratap et al. | Compensation in pulsed alternators | |
| JPH0398498A (en) | Voltage regulator for permanent magnet type synchronous generator | |
| Sun et al. | Design and analysis of hybrid excitation generators for aircraft applications under limiting open-circuit voltage | |
| Ojo et al. | Investigation into the performance characteristics of an interior permanent magnet generator including saturation effects | |
| JPH08140214A (en) | Hybrid drive system | |
| JP3843355B2 (en) | Power generator | |
| Sharawy et al. | Starting of induction motor fed with stand-alone DFIG | |
| RU2105403C1 (en) | Supply mains voltage unbalance corrector | |
| JP3968661B2 (en) | Power generator | |
| KR101780753B1 (en) | High Efficiency Industrial Electric Power Generation Apparatus And Industrial Synchronous Electric Power Generator System Using The Same | |
| RU2145461C1 (en) | Off-line contactless synchronous generator | |
| CN118040930A (en) | Novel composite winding high-speed permanent magnet inductor type direct current power generation system | |
| Schaefer | Excitation control of the synchronous motor | |
| Nnadi et al. | Steady state analysis of a three phase indirect matrix converter fed 10 HP, 220 V, 50 Hz induction machine for efficient energy generation | |
| Nisar et al. | Novel Method of Speed Control of 3 Phase Induction Motor by Chopper Circuit | |
| JP2530297B2 (en) | AC generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |