JP2645172B2 - Rotary type interconnection system - Google Patents
Rotary type interconnection systemInfo
- Publication number
- JP2645172B2 JP2645172B2 JP2180410A JP18041090A JP2645172B2 JP 2645172 B2 JP2645172 B2 JP 2645172B2 JP 2180410 A JP2180410 A JP 2180410A JP 18041090 A JP18041090 A JP 18041090A JP 2645172 B2 JP2645172 B2 JP 2645172B2
- Authority
- JP
- Japan
- Prior art keywords
- power
- voltage
- winding
- signal
- type induction
- 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
Landscapes
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Eletrric Generators (AREA)
- Ac-Ac Conversion (AREA)
Description
【発明の詳細な説明】 [発明の目的] (産業上の利用分野) 本発明は電力系統間を連系する回転形連系装置に関す
る。[Detailed Description of the Invention] [Object of the Invention] (Industrial application field) The present invention relates to a rotary interconnection device for interconnecting power systems.
(従来の技術) 回転形連系装置としては従来、第2図に示すように同
期電動機101Aと同期発電機101Bとを直結軸102で直結
し、両者の極数の比をそれぞれの周波数の比に等しく選
んだいわゆる定比周波数変換形の同期同期周波数変換機
がある。この変換機では通過電力を制御するためには負
荷角の調整のためにいずれか一方の電機子をその円周方
向に移動できるような電機子移動装置105を備えてい
る。この電機子移動装置105は機械的に動作するため、
もともと高速な通過電力の制御は不可能であり、電力系
統での緊急な電力の融通が必要なときには役に立たな
い。尚、図中103A,103Bは自動電圧調整装置(AVR),104
A,104Bは界磁巻線である。(Prior Art) Conventionally, as a rotary interconnection device, a synchronous motor 101A and a synchronous generator 101B are directly connected by a direct connection shaft 102 as shown in FIG. There is a synchronous frequency converter of the so-called constant-ratio frequency conversion type, which is selected equally. This converter includes an armature moving device 105 that can move one of the armatures in the circumferential direction to adjust the load angle in order to control the passing power. Since the armature moving device 105 operates mechanically,
Originally, high-speed control of passing power is impossible, and it is useless when urgent power interchange in a power system is required. In the figure, 103A and 103B are automatic voltage regulators (AVR), 104
A and 104B are field windings.
(発明が解決しようとする課題) 連系された一方の電力系統において需給不平衡が生
じ、系統安定度や周波数変動の問題で他方の電力系統か
らの緊急融通が必要な時に回転形連系装置でも通過電力
の高速制御が出来れば系統の安定運用上から好ましい。(Problem to be Solved by the Invention) When a supply-demand imbalance occurs in one of the interconnected power systems, and when an emergency interchange from the other power system is required due to problems of system stability and frequency fluctuation, a rotary interconnection device is required. However, if high-speed control of the passing power is possible, it is preferable from the viewpoint of stable operation of the system.
(発明の目的) 本発明は上記の要求に応えるためになされたものであ
り、高速な電力制御を可能とする回転形系統連系装置を
提供することにある。(Object of the Invention) The present invention has been made to meet the above-mentioned demands, and an object of the present invention is to provide a rotary grid interconnection device that enables high-speed power control.
[発明の構成] (課題を解決するための手段) 巻線誘導機はサイクロコンバータなどの周波数変換装
置によって、その2次巻線に電力系統側の周波数と回転
子周波数との差のすべり周波数を有する2次電流を流
し、その大きさと位相を制御することによって有効電力
と無効電力の発生あるいは消費を高速に制御することが
できる。すなわち、回転子の回転数が変化してもサイク
ロコンバータを制御して2次電流の周波数を常にすべり
周波数として追従させると同時に、必要に応じて2次電
流の大きさと位相が高速制御出来るので、2次回路の磁
束の大きさと電機子回路側に対する位相角を素早く調整
出来、その結果、系統側との電力の瞬時の制御が出来る
わけである。このような機能を有する、巻線系誘導機と
サイクロコンバータとその制御装置から成るシステムは
通称、交流可変速機と称せられるが、本発明はこの交流
可変速機の巻線形誘導機2台の軸を直結し、それらのサ
イクロコンバータなどの周波数変換装置をそれぞれ個別
に制御することによって同期同期周波数変換機の場合の
電機子移動装置と同じ通過電力調整の機能を高速に実現
させるだけでなく、回転機の慣性エネルギーに代えて電
力エネルギーの貯蔵が行え、系統運用に寄与することが
できる。[Structure of the Invention] (Means for solving the problem) The winding induction machine uses a frequency converter such as a cycloconverter to apply a slip frequency of a difference between a frequency on a power system side and a rotor frequency to a secondary winding thereof. The generation or consumption of the active power and the reactive power can be controlled at high speed by flowing the secondary current and controlling the magnitude and phase thereof. That is, even if the rotational speed of the rotor changes, the cycloconverter is controlled to always follow the frequency of the secondary current as the slip frequency, and at the same time, the magnitude and phase of the secondary current can be controlled at high speed if necessary. The magnitude of the magnetic flux of the secondary circuit and the phase angle with respect to the armature circuit side can be quickly adjusted, and as a result, instantaneous control of electric power with the system side can be performed. A system including such a winding-type induction machine, a cycloconverter, and a control device having such a function is generally referred to as an AC variable-speed machine. By directly connecting the shafts and controlling the frequency converters such as cycloconverters individually, not only realizes the same passing power adjustment function as the armature moving device in the case of the synchronous synchronous frequency converter at high speed, Electric energy can be stored in place of the inertial energy of the rotating machine, which can contribute to system operation.
(作 用) 従来の機械的に動作する同期同期周波数変換機の場合
と異なるのは、電機子が移動する代わりにサイクロコン
バータ制御によって回転子2次回路の磁束でつくられる
内部誘起電圧の大きさと位相が変化する点で、電気的な
制御であるからそれぞれの回転機側で個別に高速に電力
の調整ができる。また、同時に巻線形誘導機の端子電圧
の調整もできる。(Operation) The difference from the case of the conventional mechanically operated synchronous synchronous frequency converter is that the magnitude of the internal induced voltage created by the magnetic flux of the rotor secondary circuit by the cycloconverter control instead of the armature moving. Since electric control is performed at the point where the phase changes, electric power can be individually adjusted at high speed on each rotating machine side. At the same time, the terminal voltage of the wound induction machine can be adjusted.
(実施例) 以下、本発明を実施例に基づいて説明する。(Examples) Hereinafter, the present invention will be described based on examples.
第1図は本発明の一実施例の構成図である。 FIG. 1 is a configuration diagram of one embodiment of the present invention.
第1図において、系統Aの側の交流可変速機について
は数字のあとにAを、また、系統Bの側の交流可変速機
については数字のあとにBをつけて区別してある。数字
の後につけたAまたはBは単に二つの交流可変速機を区
別するための記号であり、数字が同じものは同じ機器や
物理量を意味している。In FIG. 1, the AC variable speed machine on the system A side is distinguished by adding A after the number, and the AC variable speed machine on the system B side is distinguished by adding B after the number. A or B attached after the number is simply a symbol for distinguishing two AC variable speed machines, and the same number means the same device or physical quantity.
ここで、1A,1Bは巻線形誘導機、2は巻線形誘導機1A
と1Bとが同一回転をするように機械的に結合する回転軸
(以下便宜上直結軸と呼ぶ)である。また、3A,3Bは回
転子側に巻回された交流励磁巻線、4A,4Bは周波数変換
装置で、それぞれ交流励磁巻線3A,3Bに流れる交流励磁
電流の大きさ、位相や周波数の制御を行う。5A,5Bはそ
れぞれ周波数変換装置4A,4Bの電源用の変圧器である。6
A,6Bは巻線形誘導機1A,1Bの電力出力を検出するための
電力検出器、7A,7Bは同電力検出器6A,6Bの出力の電力検
出信号、8A,8Bは電力制御のための目標電力信号、そし
て9A,9Bは電力検出信号7A,7Bと目標電力信号8A,8Bとを
比較して誤差がある場合には周波数変換装置4A,4Bによ
って電力制御する電力制御装置である。10A,10Bは電力
制御装置9A,9Bの電力制御信号である。また12A,12Bは電
圧制御装置と称するもので、巻線形誘導機1A,1Bの端子
から検出した電圧検出信号11A,11Bと目標電圧信号13A,1
3Bとをそれぞれ比較し、誤差のある場合には周波数変換
装置4A,4Bによって電圧制御するものである。14A,14Bは
電圧制御装置12A,12Bの電圧制御信号である。周波数変
換装置4A,4Bは電力制御信号10A,10Bと電圧制御信号14A,
14Bの2つの制御信号に基づいて巻線形誘導機1A,1Bの電
力と端子の電圧の制御を行うが、それらの制御に必要な
ものとして巻線形誘導機1A,1Bの回転子の回転数の検出
のためにレゾルバ15A,15Bの回転数検出信号16A,16Bと、
端子電圧の位相検出のために電圧検出信号11A,11Bを入
力する。Here, 1A and 1B are wound type induction machines, and 2 is a wound type induction machine 1A
And 1B are rotary shafts (hereinafter referred to as direct-coupled shafts for convenience) mechanically coupled so as to make the same rotation. In addition, 3A and 3B are AC excitation windings wound on the rotor side, and 4A and 4B are frequency converters, which control the magnitude, phase and frequency of the AC excitation current flowing through the AC excitation windings 3A and 3B, respectively. I do. 5A and 5B are power transformers for the frequency converters 4A and 4B, respectively. 6
A and 6B are power detectors for detecting the power output of the winding type induction machines 1A and 1B, 7A and 7B are power detection signals of the outputs of the power detectors 6A and 6B, and 8A and 8B are for power control. The target power signals 9A and 9B are power control devices that compare the power detection signals 7A and 7B with the target power signals 8A and 8B and control the power by the frequency converters 4A and 4B when there is an error. 10A and 10B are power control signals of the power control devices 9A and 9B. 12A and 12B are referred to as voltage control devices. The voltage detection signals 11A and 11B detected from the terminals of the winding type induction machines 1A and 1B and the target voltage signals 13A and
3B are compared with each other, and if there is an error, voltage control is performed by the frequency converters 4A and 4B. 14A and 14B are voltage control signals of the voltage control devices 12A and 12B. The frequency converters 4A and 4B have power control signals 10A and 10B and voltage control signals 14A and
The power of the winding type induction machines 1A and 1B and the voltage of the terminals are controlled based on the two control signals of 14B, and the control of the rotation speed of the rotor of the winding type induction machines 1A and 1B is necessary for the control. For detection, rotation speed detection signals 16A, 16B of the resolvers 15A, 15B,
Voltage detection signals 11A and 11B are input for phase detection of the terminal voltage.
第2図の従来例と第1図の本発明とを比較すると、本
発明は同期機101Aと同期機101Bとが軸直結されて同期機
101Bに設置された電機子移動装置105からなるシステム
の代わりに、それぞれ個別に周波数変換装置4A,4Bによ
って電圧制御と電力制御がなされる二つの巻線形誘導機
1Aと1Bとが軸直結されたシステムであることが分かる。2 is compared with the present invention shown in FIG. 1, the present invention shows that the synchronous machine 101A and the synchronous machine 101B are directly connected to each other and the synchronous machine
Instead of the system consisting of the armature moving device 105 installed in 101B, two winding type induction machines in which voltage control and power control are individually performed by frequency converters 4A and 4B, respectively.
It can be seen that 1A and 1B are systems directly connected to the axis.
以上のように構成された実施例では、巻線形誘導機1
A,1Bの端子電圧の変化、あるいは電力の変化、すなわち
運転中にそれぞれの目標値からの誤差が生じれば周波数
変換装置4A,4Bにそれぞれ電力制御信号10A,10Bと電圧制
御信号14A,14Bが入力され、周波数変換装置4A,4Bはその
信号によって交流励磁巻線3A,3Bに流れる交流励磁電流
の大きさと端子電圧に対する位相を電圧検出信号11A,11
Bに基づいて制御すると同時に、すべり周波数を電圧検
出信号11A,11Bと回転数検出信号16A,16Bから算出して、
常に交流励磁巻線3A,3Bに流れる交流励磁電流の周波数
がこのすべり周波数に追従すべく制御する。するとその
結果、回転子2次回路の磁束でつくられる内部誘起電圧
の大きさと位相が高速に制御できるので、その大きさの
変化で端子電圧の調整が、また、その位相の変化で電力
の調整が素早くできることになる。ここで、もし目標電
力信号8A,8Bが一定な値であれば上に述べたように電力
制御によって巻線形誘導機1A,1Bの電力は一定に保つよ
うに制御される。In the embodiment configured as described above, the winding type induction machine 1
If the terminal voltage change of A, 1B or the change of power, that is, an error from the respective target value occurs during operation, the power control signals 10A, 10B and the voltage control signals 14A, 14B are supplied to the frequency converters 4A, 4B, respectively. The frequency converters 4A and 4B detect the magnitudes of the AC excitation current flowing through the AC excitation windings 3A and 3B and the phase with respect to the terminal voltage based on the signals, thereby detecting the voltage detection signals 11A and 11B.
At the same time as controlling based on B, the slip frequency is calculated from the voltage detection signals 11A and 11B and the rotation speed detection signals 16A and 16B,
Control is performed so that the frequency of the AC exciting current flowing through the AC exciting windings 3A and 3B always follows this slip frequency. As a result, the magnitude and phase of the internal induced voltage generated by the magnetic flux of the rotor secondary circuit can be controlled at a high speed, so that the terminal voltage can be adjusted by changing the magnitude and the power can be adjusted by changing the phase. Can be done quickly. Here, if the target power signals 8A, 8B are constant values, the power of the wound induction machines 1A, 1B is controlled to be constant by the power control as described above.
第1図のように構成した系統連系器において、系統A
から系統Bへの電力の授受は次のように制御すれば実現
できる。即ち、目標電力信号8A,8Bの極性がそれぞれの
巻線形誘導機から系統へ送り出す方向を正と考えると、
系統Aから系統Bへの通過電力量を例えばPcとするので
あれば目標電力信号8Aと8Bをそれぞれ次のように設定す
る。In the system interconnection device configured as shown in FIG.
The transmission and reception of power from the system to the system B can be realized by controlling as follows. That is, if the direction in which the polarity of the target power signals 8A and 8B is sent from each of the wound induction machines to the system is positive,
If the amount of passing power from the system A to the system B is, for example, Pc, the target power signals 8A and 8B are set as follows.
目標電力信号8A P*=−Pc 目標電力信号8B P*=−Pc また、もし次のように設定すると系統Aと系統Bの両
方から電力を受けることとなり、その結果この系統連系
器は回転機の慣性により回転エネルギーとして電力エネ
ルギーを吸収することができる。Target power signal 8A P * =-Pc Target power signal 8B P * =-Pc If the following settings are made, power will be received from both the system A and the system B, and as a result, this system interconnector will rotate. Electric energy can be absorbed as rotational energy by the inertia of the machine.
目標電力信号8A P*=−Pc 目標電力信号8B P*=−Pc ここで、もし両方の目標電力信号の極性を+とすると
逆に電力エネルギーを放出することができる。Target power signal 8A P * =-Pc Target power signal 8B P * =-Pc Here, if the polarity of both target power signals is set to +, power energy can be released conversely.
[発明の効果] 以上説明したように、実施例によれば従来の回転形系
統連系装置の2台の同期機の代わりに、両方の回転機を
巻線形誘導機として、それぞれの周波数変換装置によっ
てその巻線形誘導機の交流励磁巻線に流れる交流励磁電
流がそれぞれ個別に高速に制御されるように構成したの
で、それぞれの目標電力信号の設定に応じて系統間の電
力の授受が高速に制御ができる回転形系統連系装置が実
現できる。[Effects of the Invention] As described above, according to the embodiment, instead of the two synchronous machines of the conventional rotary system interconnection device, both the rotating machines are used as the winding type induction machines, and the respective frequency converters are used. The AC excitation current flowing in the AC excitation winding of the wound induction machine is controlled individually and at high speed, so that the transfer of power between systems can be performed at high speed according to the setting of each target power signal. A controllable rotary system interconnection device can be realized.
第1図は本発明の一実施例の構成図、第2図は従来の同
期同期周波数変換機の構成図である。 1A,1B……巻線形誘導機、2……直結軸 3A,3B……交流励磁巻線 4A,4B……周波数変換装置 6A,6B……電力検出器 9A,9B……電力制御装置 12A,12B……電圧制御装置 15A,15B……レゾルバFIG. 1 is a block diagram of one embodiment of the present invention, and FIG. 2 is a block diagram of a conventional synchronous frequency converter. 1A, 1B ... winding type induction motor, 2 ... direct connection shaft 3A, 3B ... AC excitation winding 4A, 4B ... frequency converter 6A, 6B ... power detector 9A, 9B ... power controller 12A, 12B …… Voltage controller 15A, 15B …… Resolver
Claims (1)
線それぞれを、別系統の第1および第2の電力系統に連
系すると共に、交流励磁巻線を巻装したそれぞれの回転
子を同一回転となるように機械的に結合し、前記各交流
励磁巻線に流れる交流励磁電流の大きさ、位相、周波数
をそれぞれ制御するための第1および第2の周波数変換
装置を備えた回転形系統連系装置において、 前記第1および第2巻線形誘導機側にそれぞれ設けられ
各電機子巻線端子部おける電力および電圧を検出する第
1および第2の検出手段と、これら第1および第2検出
手段から出力される電力検出信号、電圧検出信号を第1
および第2巻線形誘導機側で個別に設定される目標電力
信号、目標電圧信号と比較し、その誤差を電力制御信
号、電圧制御信号として出力する第1および第2の電力
制御装置ならびに第1および第2の電圧制御装置と、第
1および第2巻線形誘導機側にそれぞれ設けられそれぞ
れの回転子の回転数を検出する第1および第2のレゾル
バとを設け、前記第1および第2周波数変換装置にそれ
ぞれの電力制御信号、電圧制御信号、レゾルバからの回
転数検出信号および電圧検出信号を入力することにより
前記第1および第2巻線形誘導機の電力および端子電圧
の制御を個別に行い得るようにした回転形系統連系装
置。An armature winding of each of a first and a second winding type induction machine is interconnected with a first and a second power system of a different system, and an AC excitation winding is wound around each of the armature windings. First and second frequency converters are provided for mechanically coupling the rotors so as to rotate in the same manner, and for controlling the magnitude, phase, and frequency of the AC exciting current flowing through each of the AC exciting windings. A first and a second detecting means provided on the first and second winding type induction machines, respectively, for detecting power and voltage at each armature winding terminal; The power detection signal and the voltage detection signal output from the first and second detection means
And a first and second power control device for comparing a target power signal and a target voltage signal individually set on the side of the second winding type induction machine and outputting an error as a power control signal and a voltage control signal; And a second voltage control device, and first and second resolvers provided on the first and second winding type induction machines, respectively, for detecting the rotational speeds of the respective rotors. The power control signal, the voltage control signal, the rotation speed detection signal and the voltage detection signal from the resolver are input to the frequency conversion device to individually control the power and terminal voltage of the first and second winding induction machines. A rotary system interconnection device that can be used.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2180410A JP2645172B2 (en) | 1990-07-10 | 1990-07-10 | Rotary type interconnection system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2180410A JP2645172B2 (en) | 1990-07-10 | 1990-07-10 | Rotary type interconnection system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH0471332A JPH0471332A (en) | 1992-03-05 |
JP2645172B2 true JP2645172B2 (en) | 1997-08-25 |
Family
ID=16082765
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2180410A Expired - Fee Related JP2645172B2 (en) | 1990-07-10 | 1990-07-10 | Rotary type interconnection system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2645172B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6157959B2 (en) * | 2013-07-12 | 2017-07-05 | 株式会社東芝 | Synchronous start control device and synchronous start control method for variable speed pumped storage power generation system |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3975646A (en) * | 1975-01-13 | 1976-08-17 | Westinghouse Electric Corporation | Asynchronous tie |
JPH0454832A (en) * | 1990-06-22 | 1992-02-21 | Toshiba Corp | Rotary system linkage unit |
-
1990
- 1990-07-10 JP JP2180410A patent/JP2645172B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH0471332A (en) | 1992-03-05 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0700596B1 (en) | Variable speed constant frequency synchronous electric power generating system and method of using same | |
US7554302B2 (en) | Slip-controlled, wound-rotor induction machine for wind turbine and other applications | |
US8085004B2 (en) | Generator with quadrature AC excitation | |
US7915869B2 (en) | Single stage starter/generator with rotor quadrature AC excitation | |
US3975646A (en) | Asynchronous tie | |
WO1997004521A1 (en) | A variable speed wind turbine generator system with zero-sequence filter | |
US4680525A (en) | Induction motor driving system | |
CA2170686A1 (en) | Interconnection system for electrical systems having differing electrical characteristic | |
JP3992859B2 (en) | Power transmission system and method | |
US20160094176A1 (en) | Drive System | |
JP2645172B2 (en) | Rotary type interconnection system | |
JP2660126B2 (en) | Frequency fluctuation suppression device | |
CN101388634A (en) | Step motor controlling method | |
JPH09140187A (en) | Power converter | |
JPH0454832A (en) | Rotary system linkage unit | |
JP4018262B2 (en) | Frequency converter | |
JPH04295233A (en) | Rotary system interconnection system | |
Singh | Variable Frequency Transformer-State of Review | |
JPH03173388A (en) | Torque detector for synchronous motor | |
JP2519687B2 (en) | Power control method for wire wound induction machine | |
JPH0634628B2 (en) | Variable speed pumped storage system operation controller | |
SU1669043A1 (en) | Device for connection of power systems | |
JPH0586159B2 (en) | ||
GB2321560A (en) | Alternating current electric motors and generators suitable for variable speed operation. | |
JPS60241788A (en) | Controller of commutatorless motor |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |