JP2691070B2 - Electronic reactor - Google Patents
Electronic reactorInfo
- Publication number
- JP2691070B2 JP2691070B2 JP2328935A JP32893590A JP2691070B2 JP 2691070 B2 JP2691070 B2 JP 2691070B2 JP 2328935 A JP2328935 A JP 2328935A JP 32893590 A JP32893590 A JP 32893590A JP 2691070 B2 JP2691070 B2 JP 2691070B2
- Authority
- JP
- Japan
- Prior art keywords
- reactor
- voltage
- current
- transmission line
- inductance
- 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
- 230000005540 biological transmission Effects 0.000 description 15
- 238000004364 calculation method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Locating Faults (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
- Networks Using Active Elements (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明はリアクトルの動作を模擬する電子式リアクト
ルに係り、特にインダクタンスの飽和状態も考慮した電
子式リアクトルに関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic reactor that simulates the operation of a reactor, and more particularly to an electronic reactor that also considers the saturation state of inductance.
従来の電力系統シミユレータでは、発電機は、小型の
発電機を用いて、大型発電機の特性を模擬している。こ
のため、リアクタンス及び時定数関係の諸量は、正確に
はあわせられず、系統における応動を完全に模擬できな
いという欠点があつた。（送配電工学（前編）小池東一
郎著（巻賢堂版）14.16交流計算盤と過渡安定度計算装
置及び模擬送電線p283） 〔発明が解決しようとする課題〕 上記従来技術では、現実の大型発電機の諸定数を正確
に表現できないため、現実の系統に発生する多様な現象
を忠実に模擬できないという問題があつた。In a conventional power system simulator, the generator uses a small generator to simulate the characteristics of a large generator. Therefore, the reactance and the time constant-related quantities cannot be accurately adjusted, and there is a drawback that the reaction in the system cannot be completely simulated. (Transmission and distribution engineering (Part 1) Toichiro Koike (Makikendou version) 14.16 AC calculator, transient stability calculator and simulated transmission line p283) [Problems to be solved by the invention] Since the machine constants cannot be accurately expressed, there was a problem that various phenomena occurring in the actual system could not be faithfully simulated.
本発明の目的は、リアクトルの模擬動作に使用される
インダクタンス成分の飽和状態に合わせて、リアクトル
動作を忠実に再現する電子式リアクトルを提供すること
を目的としたものである。An object of the present invention is to provide an electronic reactor that faithfully reproduces the reactor operation in accordance with the saturated state of the inductance component used for the simulated operation of the reactor.
上記目的を達成するために、本発明ではリアクトルの
動作を模擬する電子式リアクトルにおいて、特許情報と
して入力電圧Ei，出力電圧E0を検出する検出部と、 検出部からの入力電圧Ei，出力電圧E0をインダクタンス
Ｌ、および抵抗Ｒをもつリアクトルの式： に代入することによりリアクトル電流Ｉを求める演算部
とを備え、 演算部はインダクタンスが飽和する場合には、入力電圧
Eiと出力電圧E0との差分に応じて、時定数Ｔを変化させ
て、リアクトル電流Ｉを求めるようにしたものである。To achieve the above object, the electronic reactor which simulates the operation of the reactor in the present invention, a detecting section for detecting an input voltage E i, the output voltage E 0 as patent information, the input voltage E i from the detection unit, The formula of the reactor with the output voltage E 0 and the inductance L and the resistance R: And a calculation unit for calculating the reactor current I by substituting into
The time constant T is changed according to the difference between E i and the output voltage E 0 to obtain the reactor current I.
本発明の電子式リアクトルによれば、インダクタンス
の飽和状況も考慮しているのでリアクトルの動作を高精
度に模擬することが可能になる。According to the electronic reactor of the present invention, the operation of the reactor can be simulated with high accuracy because the saturation condition of the inductance is also taken into consideration.
以下、本発明の一実施例を第２図により説明する。同
図で、Ａはアンプ部を、Ｍは演算部を、Ｉは定電流源
を、Ｔは変圧器を、E0は出力電圧を、E1は入力電圧を示
す。Hereinafter, an embodiment of the present invention will be described with reference to FIG. In the figure, A is an amplifier unit, M is a calculation unit, I is a constant current source, T is a transformer, E 0 is an output voltage, and E 1 is an input voltage.
一方、抵抗分Ｒをもつ第１図のようなリアクトルの電
圧と電流の式は、 とあらわされる。この式を解くと、 となる。ここで、L:インダクタンス、 とする。この式と、第２図の関係は、同図の演算部Ｍで
（２）式の処理を行えば等価となる。On the other hand, the equations for the voltage and current of the reactor with resistance R as shown in FIG. It is expressed. Solving this equation gives Becomes Where L: inductance, And The relation between this equation and FIG. 2 is equivalent if the processing of the equation (2) is performed in the arithmetic unit M of FIG.
このようにすることにより、両端の電圧，電流インダ
クタンス，抵抗のうちの一つが未知の場合でも、インダ
クタンスＬ及び抵抗Ｒをもつリアクタンスを模擬するこ
とができる。By doing so, the reactance having the inductance L and the resistance R can be simulated even when one of the voltage, the current inductance, and the resistance at both ends is unknown.
通常のリアクタンスを模擬する場合には、（２）式を
解くことにより達成され、電力系統解析シミユレータの
発電機等のリアクタンスを模擬する場合には最適であ
る。一般に、実際のコイルによりリアクタンスを模擬し
た場合には、時定数の長いものを得るためには大掛かり
な装置となり、その上、特性を簡単にはかえることがで
きない。これに対し、本発明の方式では、インダタンス
及び抵抗値を与えることにより、簡単に特性をかえるこ
とができる。インダクタンスの飽和を考える場合には、
（２）式のE1−E0に応じてＴを変化させることにより対
応できる。It is achieved by solving the equation (2) when simulating a normal reactance, and it is optimal when simulating the reactance of a generator or the like of a power system analysis simulator. Generally, when the reactance is simulated by an actual coil, it becomes a large-scale device to obtain a device having a long time constant, and the characteristics cannot be easily changed. On the other hand, in the method of the present invention, the characteristics can be easily changed by giving the inductance and the resistance value. When considering the saturation of inductance,
This can be dealt with by changing T according to E 1 −E 0 of the equation (2).
第１図は一端の電圧、及び、電流より他端の電圧を求
める例を示したものである。M1は演算部を示す。基本的
には（１）式を解くことにより求められるものであり、
このようにすることにより、入力電圧E1、電流Ｉ及び、
インダクタンスＬ、抵抗Ｒより電圧E0を求めることがで
きる。発電機の内部電圧の算出等を行うこと、及び、送
電線の保護等に用いることができる。第４図に示すよう
に、ｌは送電線、G1，G2は電源、CTは電流変成器、PTは
電圧変成器とする。同図において、電流変成器CT、電圧
変成器PTを介して電流，電圧を第１図の回路に取り込
み、出力E0と他端電圧E0′を判定装置J1で判定すると、
送電線Ｌが健全な場合には、送電線他端の電圧E0′と一
致する。ここで、L,Rは送電線の特性より定まる値とす
る。これに対し、送電線の地点Ｆで事故の生じた場合に
は、電圧E0′とE0は一致しない。この事より、送電線の
事故を検出することができる。FIG. 1 shows an example of obtaining the voltage at one end and the voltage at the other end from the current. M 1 indicates a calculation unit. Basically, it is obtained by solving equation (1),
By doing so, the input voltage E 1 , the current I, and
The voltage E 0 can be obtained from the inductance L and the resistance R. It can be used to calculate the internal voltage of the generator and to protect the transmission line. As shown in Fig. 4, l is a transmission line, G 1 and G 2 are power sources, CT is a current transformer, and PT is a voltage transformer. In the figure, current and voltage are taken into the circuit of FIG. 1 through the current transformer CT and the voltage transformer PT, and when the output E 0 and the other end voltage E 0 ′ are determined by the determination device J 1 ,
When the power transmission line L is healthy, it matches the voltage E 0 ′ at the other end of the power transmission line. Here, L and R are values determined by the characteristics of the transmission line. On the other hand, when an accident occurs at the point F of the power transmission line, the voltages E 0 ′ and E 0 do not match. From this, it is possible to detect an accident on the power transmission line.
第３図は、両端の電圧E1，E0より電流Ｉを求める例を
示したものである。（２）式を解くことにより求められ
る。M2は演算部を示す。この方式も第４図と同様送電線
の事故の検出に用いることができる。第５図はこの例に
つき示したものであり、演算部M2の出力Ｉと他端電流
Ｉ′を判定装置J2で判定すると、健全時には、第３図の
出力電流Ｉと送電線電流Ｉ′が一致するが、送電線ｌの
地点Ｆで事故の生じた場合には、ＩとＩ′は一致しな
い。この事より、送電線の事故を検出することができ
る。FIG. 3 shows an example of obtaining the current I from the voltages E 1 and E 0 at both ends. It can be obtained by solving the equation (2). M 2 indicates a calculation unit. This method can also be used to detect an accident on a transmission line, as in FIG. FIG. 5 shows this example, and when the output I of the calculation unit M 2 and the other end current I ′ are judged by the judgment device J 2 , the output current I and the transmission line current I of FIG. ′ Coincides with each other, but I and I ′ do not coincide with each other when an accident occurs at the point F of the transmission line 1. From this, it is possible to detect an accident on the power transmission line.
〔発明の効果〕 本発明の電子式リアクトルによれば、インダクタンス
の飽和状況も考慮しているので、リアクタンスの動作を
高精度に模擬することが可能になる。[Advantages of the Invention] According to the electronic reactor of the present invention, since the saturation state of the inductance is also taken into consideration, it is possible to accurately simulate the behavior of the reactance.
第１図は本発明の一実施例の制御系統図、第２図は本発
明の基本構成の制御系統図、第３図は本発明の他の実施
例の制御系統図、第４図は第２図の構成を線路保護に用
いた制御系統図、第５図は第３図の構成を線路保護に用
いた制御系統図である。 E1……入力電圧、E0……出力電圧、Ｉ……定電流源、Ｔ
……時定数、M,M1，M2……演算部、Ｒ……抵抗、PT……
電圧変成器、Ａ……アンプ部、CT……電流変成器、G1，
G2……電源、ｌ……送電線、Ｆ……事故点、E0′,I′…
…送電線他端の電圧及び電流、J1，J2……判定装置。FIG. 1 is a control system diagram of an embodiment of the present invention, FIG. 2 is a control system diagram of a basic configuration of the present invention, FIG. 3 is a control system diagram of another embodiment of the present invention, and FIG. 2 is a control system diagram using the configuration of FIG. 2 for line protection, and FIG. 5 is a control system diagram using the configuration of FIG. 3 for line protection. E 1 …… Input voltage, E 0 …… Output voltage, I …… Constant current source, T
…… Time constant, M, M 1 , M 2 …… Calculator, R …… Resistance, PT ……
Voltage transformer, A …… Amplifier, CT …… Current transformer, G 1 ,
G 2 ... power supply, l ... transmission line, F ... accident point, E 0 ', I' ...
… Voltage and current at the other end of the power transmission line, J 1 , J 2 … Judgment device.
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｈ０３Ｈ 11/48 (72)発明者 土井 宏祐 大阪府大阪市北区中之島３丁目３番22号 関西電力株式会社内 (56)参考文献 特開 平２−262838（ＪＰ，Ａ) 電気学会全国大会講演論文集 Ｖｏ ｌ．1989，Ｎｏ．８，ｐｐ．８−97〜８ −98，1989年─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Reference number within the agency FI Technical indication location H03H 11/48 (72) Inventor Kosuke Doi 3-3-22 Nakanoshima, Kita-ku, Osaka City, Osaka Kansai Kansai Electric Power Co., Ltd. (56) Reference JP-A-2-262838 (JP, A) Proceedings of the National Conference of the Institute of Electrical Engineers of Japan Vol. 1989, No. 8, pp. 8-97 to 8-98, 1989
Claims (1)
トルにおいて、制御情報として入力電圧Ei，出力電圧E0
を検出する検出部と、 該検出部からの入力電圧Ei，出力電圧E0をインダクタン
スL,および抵抗Ｒをもつリアクトルの式： に代入することによりリアクトル電流Ｉを求める演算部
とを備え、 該演算部は前記インダクタンスが飽和する場合には、入
力電圧Eiと出力電圧E0との差分に応じて、前記時定数Ｔ
を変化させて、リアクトル電流Ｉを求める事を特徴とす
る電子式リアクトル。1. An electronic reactor for simulating the operation of a reactor, wherein an input voltage E i and an output voltage E 0 are used as control information.
And a reactor having an input voltage E i , an output voltage E 0 from the detector and an inductor L, and a resistor R: When the inductance saturates, the arithmetic unit has a time constant T in accordance with the difference between the input voltage E i and the output voltage E 0.
The electronic reactor characterized in that the reactor current I is obtained by changing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328935A JP2691070B2 (en) | 1990-11-30 | 1990-11-30 | Electronic reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2328935A JP2691070B2 (en) | 1990-11-30 | 1990-11-30 | Electronic reactor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04203976A JPH04203976A (en) | 1992-07-24 |
| JP2691070B2 true JP2691070B2 (en) | 1997-12-17 |
Family
ID=18215742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2328935A Expired - Fee Related JP2691070B2 (en) | 1990-11-30 | 1990-11-30 | Electronic reactor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2691070B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592107B (en) * | 2021-07-19 | 2023-11-07 | 广东电网能源发展有限公司 | Bypass simulation method and system of power transmission line, intelligent terminal and storage medium |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2821578B2 (en) * | 1989-04-03 | 1998-11-05 | 株式会社日立製作所 | Transmission line simulator |
-
1990
- 1990-11-30 JP JP2328935A patent/JP2691070B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| 電気学会全国大会講演論文集 Ｖｏｌ．１９８９，Ｎｏ．８，ｐｐ．８−９７〜８−９８，１９８９年 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04203976A (en) | 1992-07-24 |
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