JPH04203976A - Electronic type reactor - Google Patents
Electronic type reactorInfo
- Publication number
- JPH04203976A JPH04203976A JP2328935A JP32893590A JPH04203976A JP H04203976 A JPH04203976 A JP H04203976A JP 2328935 A JP2328935 A JP 2328935A JP 32893590 A JP32893590 A JP 32893590A JP H04203976 A JPH04203976 A JP H04203976A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- transmission line
- current
- reactor
- output
- 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
- 230000005540 biological transmission Effects 0.000 abstract description 20
- 238000004364 calculation method Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
Landscapes
- Networks Using Active Elements (AREA)
- Locating Faults (AREA)
- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、電力系統シミュレータにおいて、発電機の容
量、特性にかかわらず、任意の特性のりアクタンス、時
定数を正確に表現できる装置にかかわり、特に、電力系
統を正確に表現するのに好適な装置に関する。[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a device that can accurately represent any characteristic force actance and time constant in a power system simulator, regardless of the capacity and characteristics of the generator. In particular, it relates to a device suitable for accurately representing a power system.
従来の電力系統シミュレータでは、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
という欠点があった。In conventional power system simulators, a small generator is used to simulate the characteristics of a large generator. For this reason, various quantities related to reactance and time constant cannot be matched accurately, and there is a drawback that the response in the system cannot be completely simulated.
（送配電工学（前編）小池東一部著（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ｐ
２８３）
〔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った。(Power Transmission and Distribution Engineering (Part 1) by Higashi Koike (Makikendo edition) 14.
16 AC calculation board, transient stability calculation device and simulated transmission line p
283) [Problem to be solved by the invention] The above conventional technology has a problem in that it cannot accurately represent the various constants of an actual large-scale generator, and therefore cannot faithfully simulate the various phenomena that occur in an actual power system. .
本発明の目的は１発電機の諸定数を大型発電機の目標と
する特性にあわせて正確に表現し、現実の系統に発生す
る多様な現象を忠実に再現するため方式を提供すること
にある。The purpose of the present invention is to provide a method for accurately expressing various constants of a single generator in accordance with the target characteristics of a large-scale generator, and faithfully reproducing various phenomena that occur in actual power systems. .
上記目的は、リアクトルの部分を電子式とすることによ
り、簡単な構成で発電機の各種の特性を正確に実現する
ことにより達成される。The above object is achieved by making the reactor part electronic, thereby accurately realizing various characteristics of the generator with a simple configuration.
リアクトルは、与えられた定数により電子回路で表現さ
れて、目的とした特性となる。このため、各種の特性は
定数の選択により正確に模擬される。The reactor is expressed by an electronic circuit using given constants and has the desired characteristics. Therefore, various characteristics can be accurately simulated by selecting constants.
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、■は定電流源を、
Ｔは変圧器を、Ｅｏは出力電圧を。An embodiment of the present invention will be described below with reference to FIG. In the same figure, A is the amplifier section, M is the calculation section, ■ is the constant current source,
T is the transformer and Eo is the output voltage.
Ｅｌは入力電圧を示す。El indicates input voltage.
一方、抵抗分Ｒをもつ第１図のようなりアクドルの電圧
と電流の式は、
ｔ
とあられされる。この式を解くと、
となる。ここで、Ｌ：インダクタンス、Ｔ＝−とする。On the other hand, the equation of the voltage and current of the accelerator as shown in FIG. 1 with a resistance R is expressed as t. Solving this equation yields. Here, L: inductance, T=-.
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。The relationship between this equation and the one shown in FIG. 2 becomes equivalent if equation (2) is processed by the calculation unit M in the same drawing.
このようにすることにより、両端の電圧、電流イダクタ
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 this, even if one of the voltage, current inductance, and resistance at both ends is unknown, a reactance having an inductance L and a resistance R can be simulated.
通常のり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、電力系統解析シミュレータの発
電機等のりアクタンスを模擬する場合には最適である。When simulating normal glue actance, this is achieved by solving equation (2), and is optimal when simulating glue actance such as a generator in a power system analysis simulator.
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、インダクタンス及
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Ｅ＋ Ｅｏに応じてＴを変化させることによ
り対応できる・
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。Ｍｌ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。Generally, when reactance is simulated using an actual coil, a large-scale device is needed to obtain a long time constant, and furthermore, the characteristics cannot be easily changed. In contrast, in the method of the present invention, the characteristics can be easily changed by providing inductance and resistance values. When considering inductance saturation, (
2) This can be handled by changing T according to E+Eo in the equation. Figure 1 shows an example of determining the voltage at one end and the voltage at the other end from the current. Ml indicates the calculation unit, which is basically found by solving equation (1),
By doing this.
入力電圧Ｅｘ、電流Ｉ及び、インダクタンスＬ、抵抗Ｒ
より電圧Ｅｏ を求めることができる８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、Ωは送電線、Ｇｌ
、Ｇｘは電源、ＣＴは電流変成器、ＦＴ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Ｐ
Ｔを介して電流、電圧を第１図の回路に取り込み、出力
Ｅｏと他端電圧Ｅｏ′ を判定装置ｆ Ｊ １で判定
すると、送電線りが健全な場合には、送電線他端の電圧
Ｅｏ’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Ｅｏ’ とＥｏは一致しない。Input voltage Ex, current I, inductance L, resistance R
It can be used to calculate the internal voltage of the 8 generator, which can obtain the voltage Eo, and to protect power transmission lines. As shown in Figure 4, Ω is the transmission line, Gl
, Gx is a power supply, CT is a current transformer, and FT is a voltage transformer. In the same figure, current transformer CT, voltage transformer P
When the current and voltage are taken into the circuit shown in Fig. 1 through T, and the output Eo and the voltage at the other end Eo' are judged by the determination device fJ1, if the power transmission line is in good condition, the voltage at the other end of the transmission line is Matches Eo'. Here, L and R are values determined from the characteristics of the power transmission line. On the other hand, if an accident occurs at point F on the power transmission line, voltages Eo' and Eo do not match.
この事より、送電線の事故を検出することができる。This makes it possible to detect power transmission line accidents.
第３図は、両端の電圧Ｅｒ、Ｅｏより電流１を求める例
を示したものである６（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１′を判定装置 Ｊ ｚで判定すると、健全時には
、第３図の出力電流工と送電線電流Ｉ′が一致するが、
送電線Ｑの地点Ｆで事故の生じた場合には、■と工′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 calculating the current 1 from the voltages Er and Eo at both ends, which is calculated by solving Equation 6(2). M2 indicates a calculation section. Similar to FIG. 4, this method can also be used to detect accidents on power transmission lines. FIG. 5 shows this example. When the output I of the calculating section M2 and the other end current 1' are judged by the judgment device Jz, when the output current is normal, the output current and the transmission line current I' shown in Fig. 3 are determined. matches, but
If an accident occurs at point F on power transmission line Q, ■ and work' do not match. This makes it possible to detect power transmission line accidents.
本発明によれば、定数の整定により、各種の特性のりア
クドルを模擬でき、送電線事故を高精度で検出できる。According to the present invention, by setting constants, it is possible to simulate various characteristics of the steering wheel, and it is possible to detect power transmission line accidents with high accuracy.
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。
Ｅ＋・・・入力電圧、Ｅｏ・・・出力電圧、■・・・定
電流源、Ｔ・・・時定数、Ｍ、Ｍｌ 、Ｍ２・・・演算
部、Ｒ・・抵抗。
ＰＴ・・・電圧変成器、Ａ・・・アンプ部、ＣＴ・・・
電流変成器、Ｇｌ、Ｇ２・・・電源、ト・・送電線、Ｆ
・・・事故点、Ｅｏ／、Ｉ７ ・・・送電線他端の電
圧及び電流、Ｊｌ 、Ｊｚ・・・判定装置。
第１図
第２図
第３図FIG. 1 is a control system diagram of one embodiment of the present invention, FIG. 2 is a control system diagram of the basic configuration of the present invention, FIG. 3 is a control system diagram of another embodiment of the present invention, and FIG. 4 is a control system diagram of another embodiment of the present invention. A control system diagram using the configuration shown in FIG. 2 for line protection, and FIG. 5 a control system diagram using the configuration shown in FIG. 3 for line protection. E+...Input voltage, Eo...Output voltage, ■...Constant current source, T...Time constant, M, Ml, M2...Calculation unit, R...Resistance. PT...Voltage transformer, A...Amplifier section, CT...
Current transformer, Gl, G2...Power supply, G...Transmission line, F
... Fault point, Eo/, I7 ... Voltage and current at the other end of the transmission line, Jl, Jz ... Judgment device. Figure 1 Figure 2 Figure 3
Claims (4)
アクトル，抵抗を模擬することを特徴とする電子式リア
クトル。1. An electronic reactor characterized by simulating a reactor and resistance using an electronic circuit in a power system simulator.
より特性をかえられることを特徴とする電子式リアクト
ル。2. An electronic reactor according to claim 1, characterized in that its characteristics can be changed by an external signal.
り他端の電圧を計測することを特徴とする電圧計測装置
。3. A voltage measuring device that uses an electronic reactor to measure voltage and current at one end and voltage at the other end.
求めることを特徴とする電流計測装置。4. A current measuring device that uses an electronic reactor to determine the current from the voltage at both ends.
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 true JPH04203976A (en) | 1992-07-24 |
| JP2691070B2 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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592107A (en) * | 2021-07-19 | 2021-11-02 | 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 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02262838A (en) * | 1989-04-03 | 1990-10-25 | Hitachi Ltd | Transmission line simulator |
-
1990
- 1990-11-30 JP JP2328935A patent/JP2691070B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02262838A (en) * | 1989-04-03 | 1990-10-25 | Hitachi Ltd | Transmission line simulator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113592107A (en) * | 2021-07-19 | 2021-11-02 | 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2691070B2 (en) | 1997-12-17 |
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