JP4236822B2 - Test method for automatic accident recovery equipment - Google Patents

Description

【００２７】
さらに、ポジション表を作成する。このポジション表は自動復旧の対象とする電力送電回路の配線図（系統図）を構成する各開閉器の動作状態を、各故障のケース毎に示した表で、表２に一例を示している。表２はポジション表の実施形態を説明するための表である。即ち、各回線５３、５４の断路器５５、５９や遮断器５８の動作状態を「ＯＮ」「ＯＦＦ」で表示した表である。
【００２８】
【表２】

【００２９】
このような表１の故障標定一覧表と、表２のポジション表から系統図のどの回路で事故が発生したかが特定できる。
【００３０】
Ｂステップ
Ａステップで作成された故障標定一覧表、ポジション表の情報を計算機（コンピュータ）に入力する。このコンピュータ入力は例えばパソコン画面により入力する（ＣＡＤシステムの要領で画面から入力する）。図１はパソコン画面１を示している。このパソコンには、図６で説明した自動復旧の対象とする電力送電回路の配線図（系統図）が予め登録して記憶されている。この電力送電回路は図６に示す交流電力送電系即ち、変電所の母線５１、５２から工場、ビル、消費者などの各回線５３、５４へ送電する系統を示した回路である。
【００３１】
この電力送電回路は必要に応じてパソコン画面１に呼び出し表示することができる。表示されたパソコン画面に表１、２に示す故障標定一覧表およびポジション表に基づき、故障ケース毎に入力した図が系統状態図である。この系統状態図がパソコンに入力される。
【００３２】
Ｃ工程
この結果、パソコン１は自動的に予め入力されたソフトにより試験ケース表２、結果確認表３、シミュレーション用データベース４を作成し表示する。試験ケース表２には系統状態確認図と描画データ確認図とがある。前者の系統状態確認図は例えば図２に示す。後者の描画データ確認図は例えば図３に示す。先ず前者の系統状態確認図を説明する。図２は故障ケースの一実施形態を示した系統状態確認図である。このケースは甲母線１に地絡が発生した故障ケースの系統状態確認図である。
【００３３】
電力送電回路の配線図は図６で説明した甲、乙母線５１、５２から回線５３、５４を接続した構成である。この表において、□は遮断器を示し、○は断路器を示し、黒丸に×印６は断路器を事故前ＯＮで事故後ＯＦＦに切替えを示し、１重丸７は事故前ＯＦＦの断路器を示し、２重丸８は事故後のＯＮの断路器を示し、黒四角に×印９は事故により遮断器がＯＦＦになった状態を示す。
【００３４】
即ち、事故前は甲母線５１から回線５３、５４に電力を供給するように断路器５５、遮断器５８をＯＮに制御し、乙母線５２からの電力回路は断路器５９をＯＦＦして、待機状態に設定している。ある時、突然甲母線５１の１個所に例えば地絡が発生し、これを検知した時、遮断器５８をＯＦＦにする。その後、乙母線５２が正常であることを確認する。その後、甲母線５１および甲母線５１からの回線の断路器５５をＯＦＦにする。次に、乙母線５２からの回線に接続された断路器５９をＯＮに切替える。
【００３５】
図２は、このような一つの故障ケースの「系統状態確認図」を示している。
【００３６】
このような「系統状態確認図」は、図６の電力送電回路において推定される多数の故障ケースについてパソコンが演算して自動的に作成される。これら各「系統状態確認図」に対応する「描画データ確認図」もパソコンが自動的に作成する。描画データ確認図は図３に示すもので、各故障ケースについての故障した配線個所を示すものである。
【００３７】
図３は、図２の電力送電回路を絶縁ガス中に設定するために全ての配線１１をガス管１２内に設け、このガス管１２内に絶縁ガスを供給した構成を示している。このガス管１２に区画線１３が記載されているのは各ガス圧力センサのセンシングエリアを示している。図３にガス管１２を設けた図まで記載したのは、ガス圧力センサ５７の設けられるセンシングエリアを説明するために示したものである。
【００３８】
このガス圧力センサ５７は事故が発生した回路に大電流が流れることにより充填されているガス圧力が低下する。このガス圧力の変化をガス圧力センサ５７により検出して、情報として自動復旧装置に入力する。このような「描画データ確認図」はパソコンにより演算して自動的に作成される。図３はパソコン画面に一故障ケースとして描画データ確認図を表示した状態を示している。
【００３９】
次に、結果確認表３について説明する。この結果確認表３には状変メッセージ表と結果確認表がある。前者の状変メッセージ表は例えば表３に示し、後者の結果確認表は例えば表４に示す。
【００４０】
【表３】

【表４】

【００４１】
まず、前者の状変メッセージ表は各故障ケースにおける各開閉器の動作状態を示す。動作状態は「入」「切」で表示される。このような状変メッセージ表はパソコンが演算して自動的に作成される。後者の結果確認表は電力送電回路の配電盤のパネルに設けられる回路の表示灯が、各故障ケース毎に、点灯の有無を表示したものでパソコンが演算して自動的に作成される。この点灯は例えばＬＥＤ発光素子により表示することができる。
【００４２】
次に、シミュレーション用データベース４について説明する。このシミュレーション用データベース４は表５、表６に示すように１ワードを３２ビットで表現するもので、甲、乙母線系の各遮断器（Ｃｉｒｃｕｉｔ Ｂｒａｋｅｒ＝ＣＢ）、断路器（Ｌｉｎｅ Ｓｗｉｔｃｈ＝ＬＳ）の動作について「１」「０」で表現したデータベースである。このデータベースは事故前と事故後についてパソコンが演算して自動的に作成される。
【００４３】
【表５】

【表６】

【００４４】
このようにして作成されたデータベースを図７に示す自動復旧装置７４の情報制御装置７１に試験信号として入力して、テストを実行する。自動復旧装置７４の応答結果を結果確認表と比較照合して良否の判定を実施する。総ての、事故ケースについて判定「良」であれば出荷する。このようして人間がミスを発生し易いプロセスをパソコンにより作成することにより高速で正確に、自動復旧装置７４のシミュレーション用データを作成できる。従って、高度な技術者数をより少数でしかも短期間にテストできる。
【００４５】
上記Ｃ、Ｄステップの計算機によりシミュレーション用データベースを作成するシステムは図４の通りである。図４はシミュレーション用データベースを自動的に作成するシステム構成図である。このシステムによりシミュレーション用データベースを自動的に作成するフローは図５に示すとおりである。中央処理装置（ＣＰＵ）２１は母線２２を介してメインメモリ２３中の制御プログラムの指令により、電力送電回路データファイル２４から電力送電回路を読み出し表示装置２５に表示する。
【００４６】
この表示装置２５に表示された電力送電回路に故障標定一覧表、ポジション表に基づき、入力装置２６によりデータを故障ケース毎に入力する。入力されたデータは予め登録された制御プログラムにより、母線２２を介して画像処理装置２７、試験ケーステーブル２８、シミュレーションデータファイル２９、試験結果確認テーブル３０に登録されたデータと演算処理する。この演算処理により出力装置３１に、試験ケース表として系統状態確認図、描画データ確認図、シミュレーション用データベース、結果確認表、状変メッセージ表などを出力する。
【００４７】
このようなプロセスフローは図５の通りである。図５を参照してシミュレーション用データベース作成プロセスを説明する。
【００４８】
プロセス３５
パソコン画面において故障ケース毎に表１、２に示す故障標定表、ポジション表の情報を入力する。
【００４９】
プロセス３６
系統状態確認データファイルから図２に示す系統状態確認図を作成する。
【００５０】
プロセス３７
描画データ確認ファイルから図３に示す描画データ確認図を作成する。
【００５１】
プロセス３８
シミュレーションデータファイルから表５、６に示すようなシミュレーション用データベースを作成する。
【００５２】
プロセス３９
状変メッセージデータファイルから表３に示すような自動復旧装置の良否を判定するための状変メッセージ表を作成する。
【００５３】
プロセス４０
試験結果確認用データファイルから表４に示すような自動復旧装置の良否を判定するための試験結果確認表を作成する。
【００５４】
プロセス４１
シミュレーションデータベースを出力して終了する。
【００５５】
上記実施形態では電力送電回路として変電所の回線系送電回路に適用した実施形態について説明したが、電気回路であれば、発電所の送電回路でも、ビル内の電気室の送電回路でもその他、電気回路であればいずれでもよい。
【００５６】
【発明の効果】
この発明によれば、人間の方が信頼性の高い技術と人間によるミス発生確率の高い技術とを分析して、信頼性の高い事故自動復旧装置の試験を高速化できる。
【図面の簡単な説明】
【図１】図１は事故自動復旧装置を試験するためのシミュレーション用データベース作成手順を説明するためのフローチャートである。
【図２】図１の計算機の画面に入力する故障ケースの一実施形態を示した系統状態確認図。
【図３】図１の計算機の画面に入力する故障ケースの一実施形態を示した描画データ確認図。
【図４】変電所の母線から工場、ビル、需要者などへ送電する回線系統を示した回路結線図。
【図５】図４の自動復旧システムの構成を説明するための回路構成図。
【図６】図５の自動復旧装置を試験する従来のシミュレーション用データベースを作成する手順を説明するためのフローチャート。
【図７】従来の自動復旧システムを説明するための回路構成図。
【図８】従来の自動復旧装置を試験するためのシミュレーション用データベースを作成する手順を説明するためのフローチャート。
【符号の説明】
１…パソコン画面， ２…試験ケース表， ３…結果確認表， ４，…シミュレーションデータベース， ６…黒丸に×印， ７…１重丸， ８…２重丸， ９…黒四角に×印， １１…配線， １２…ガス管， １３…区画線、 ２１…ＣＰＵ， ２２…母線， ２３…メインメモリ， ２４…電力送電回路データファイル， ２５…表示装置， ２６…入力装置， ２７…画像処理装置， ２８…試験ケーステーブル， ２９…シミュレーションデータファイル， ３０…試験結果確認テーブル。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a test method for an automatic accident recovery apparatus that quickly recovers after an electric circuit system accident occurs.
[0002]
[Prior art]
When a short circuit accident or the like occurs due to a lightning strike or ground fault in a part of a power transmission circuit of an electric circuit system, for example, a substation, an automatic recovery device is provided to restore power transmission as quickly as possible. The power transmission circuit has a configuration shown in FIG. 6, for example. FIG. 6 is a circuit connection diagram showing a line system for transmitting power from a bus of a substation to factories, buildings, consumers, and the like. The AC power bus system is provided with a plurality of buses 51 and 52, for example, A and B. It is assumed that a line system for transmitting power to a factory, a building, a customer, or the like is mainly used for one of the upper and second bus lines 51 and 52, for example, the first bus line 51.
[0003]
Assuming that an accident has occurred in one of the buses 51, 52, for example, the bus 51 in this state, the automatic recovery device confirms that the Otobus 52 is a normal circuit and switches to the Otobus 52 to reduce the power failure time. Has a recovery function to recover in the shortest time. That is, this is an example in which a large number of line systems 53 and 54 are connected to the bus line 51. In the line systems 53 and 54, a disconnector 55, a current meter 56, a gas pressure sensor 57, and a breaker 58 are connected in series to the bus 51 as an accident sensor. In a normal state, the disconnector 55 is in a conducting state and is transmitted through the current path of the upper bus 51.
[0004]
Further, a series circuit such as a disconnector 59, an accident sensor current meter 60, and a gas pressure sensor 57 is connected between the circuit breaker 58 and the Otobus line 52 in order to quickly and automatically recover from an accident. In this way, the line systems 53 and 54 are configured. When an accident occurs, the automatic recovery device controls the disconnector 55 (or 59) and the circuit breaker 58 to switch the buses so that the power failure time is extremely short, thereby protecting the line systems 53 and 54. That is, it is assumed that a short circuit accident has occurred in the portion indicated by the arrow 65 of the upper bus 51. As a result, a large current flows through the line system that is transmitting power from the upper bus 51.
[0005]
When this current is detected by the current meter 56 and the relay circuit is operated, the gas pressure sensor 57 detects a decrease in the gas pressure. Immediately after this detection, the circuit breaker 58 operates in a non-conducting state (OFF) to place the lower circuit in a power failure state. The automatic recovery device operates according to the detection result of the relay circuit and the gas pressure sensor 57. After confirming the normality of the maiden bus line 52, this automatic restoration device switches the disconnector 55 to OFF and controls to switch to the maiden bus line 52 (normal circuit). That is, the automatic recovery device turns off the disconnector 55 and then controls the disconnector 59 to be in a conductive state (ON) to switch to power transmission from the second bus 52. After this switching, the circuit breaker 58 is turned on manually or automatically so that the power failure time is short.
[0006]
The configuration of the automatic recovery system having such a function is the circuit configuration shown in FIG. The same circuits as those in FIG. 6 will be described using the same reference numerals, and detailed description thereof will be omitted. When normal, the disconnector 55 is turned on and power is supplied from the bus 1 to the line systems 53 and 54. When an accident occurs (at the time of an accident), a relay circuit for specifying in which circuit the accident has occurred The output of the gas pressure sensor 57 is input to the information control device 71.
[0007]
The circuit information input to the information control device 71 executes signal processing for automatic recovery by Ethernet communication via the LAN 73 with the failure determination automatic recovery control circuit 72. That is, the failure determination automatic recovery control circuit 72 detects a change in the stored data before the accident and the data at the time of the accident, determines the failure location, and outputs a control signal for recovering the failure. The configuration for generating this control signal is the automatic recovery device 74. The control signal output by the automatic restoration device 74 is supplied to the line unit control boards 76, 77, 78 of the line systems 53, 54 via the information control device 71 and the star coupler 75.
[0008]
The line unit control panels 76 to 78 are automatically restored by a command from the automatic restoration device 74. In this way, an automatic recovery system is configured. The automatic recovery device 74 having such a function is subjected to a highly reliable test before being shipped after being produced at the factory. In this test, a large number of estimated accident cases are created and input as test data to the information control device 71 for each case to test whether the operation satisfies the design specifications. That is, it is a test (test) of the automatic restoration device 74 by simulation.
[0009]
Next, the procedure for creating the simulation database will be described with reference to the flowchart of FIG. FIG. 8 is a flowchart for explaining a procedure for creating a simulation database for testing the automatic recovery apparatus.
[0010]
First, the A step will be described. The operator manually creates a number of estimated failure cases as described above on the paper as a “fault orientation list” on the paper. This failure orientation list is a table showing the state at the time of failure for each sensor connected to each circuit shown in FIG. A large number of this table is created for every estimated failure case.
[0011]
In addition, for each case described in the “Fault orientation list”, a “position table (transmission relationship)” indicating the operation state of each circuit component connected to each circuit in FIG. 6 is manually created on the paper. To do. This table prepares the state before the accident (normal) and after the accident (when the accident occurs).
[0012]
Next, the B step will be described. For each case in the position table, a state change record (test case) of each circuit element is manually created on the paper. There are two types of diagrams: “system state confirmation diagram” and “drawing data confirmation diagram”. In the former system state confirmation diagram, the change of the state of each circuit in the power transmission circuit connection diagram shown in FIG. 6 is graphically illustrated on the paper for each failure case. The next drawing data confirmation diagram shows the location of the failure for each failure case in the power transmission circuit connection diagram shown in FIG. Furthermore, a status change message is created. The status change message lists the operation state of each circuit component of the power transmission circuit shown in FIG. 6 for each failure case.
[0013]
Next, the C step will be described. The lighting state of the display lamp connected to the power transmission circuit in FIG. 6 is created manually on a sheet as a result confirmation table for each failure case.
[0014]
Next, the D step will be described. A simulation database is handwritten on the paper from the test case table. This database is 32 bits each word. For each word, a database in which the operations of the circuit parts A and B are expressed by “1” and “0” is listed before and after the accident. By comparing the tables before and after the accident, it is possible to determine where (in which circuit) the accident occurred.
[0015]
A test before shipping of the automatic recovery apparatus was performed using the database created in this way. In addition, since such an automatic recovery device has different system configurations such as each power plant and each substation, there is no completely the same device, and a suitable device is designed each time. Therefore, it is necessary to change the test content to a content suitable for the design, and it is also necessary to perform a highly reliable test.
[0016]
[Problems to be solved by the invention]
However, in the above-described test work, because there are a lot of failure cases, a high-level engineer spends an enormous amount of time for manual creation. Such a test method has high reliability, but increases the cost. It also affects the cheap power supply. Furthermore, since there are no identical electrical circuit configurations, all automatic recovery devices are different. Therefore, it is necessary to create a simulation database for each apparatus. Since this database is created by highly skilled engineers, high reliability can be obtained. On the other hand, human input is often erroneous. This erroneous input test deteriorates the reliability of the automatic recovery device, so that a considerable loss of time is required for error detection and correction. Furthermore, after completing the test, it took much more time to create a report of the automatic recovery device.
[0017]
The present invention has been made in response to the above-mentioned points, and humans analyze highly reliable technologies and technologies with a high probability of human error so as to speed up reliable tests. The purpose is to provide a test method for an automatic accident recovery device.
[0018]
In addition, the present invention modifies the manual work on the paper, and tests the automatic accident recovery device by a simulation in which a test case table, a result confirmation table, and a simulation database are automatically created by manual input from the position table to a personal computer. A test method for the automatic accident recovery device is provided.
[0019]
[Means for Solving the Problems]
In order to achieve the above object, the test method of the automatic accident recovery device of the present invention is an automatic recovery that recovers by switching to a normal circuit from changes in sensors and switches provided in the electrical circuit subject to automatic recovery in the event of an accident. A fault circuit for testing a restoration function of a device by simulation data of an estimated accident case, and for creating a fault orientation table displaying the operation of each sensor provided in the electric circuit for each estimated accident case A specific step, an operation display step for creating a position table for each accident case in which the operation of each switch provided in the electric circuit is estimated, and an accident case in which information on the fault orientation table and the position table is estimated A test case table that displays the operation of each switch provided in the electric circuit for each accident case that is input to the computer every time. A result confirmation table that is a result of lighting the indicator lamp, a calculation step by a computer that calculates and outputs a simulation database, a test step that inputs the simulation database and the test case table as test signals to the automatic recovery device, and this test And a determination step for determining pass / fail by comparing the response result of the automatic recovery device with the result confirmation table according to the step.
[0020]
The test method for an automatic accident recovery apparatus according to the present invention is to estimate the recovery function of an automatic recovery apparatus that switches to a normal circuit from a change provided in a sensor or switch of an electric circuit subject to automatic recovery in the event of an accident. A test method using simulation data for an accident case, the fault circuit specifying step for creating a fault orientation table for each accident case in which the operation of each sensor provided in the electric circuit is estimated, and the electric circuit An operation display step for creating a position table for each accident case in which the operation of each provided switch is estimated, and information on the failure orientation table and the position table are displayed on the computer screen for each estimated accident case. In addition, a computer that inputs the electrical circuit wiring diagram and outputs the test case table, result confirmation table, and simulation database. A calculation step, a test step for inputting the simulation database and the test case table to the automatic recovery device as a test signal, and a response result of the automatic recovery device is checked against the result confirmation table by this test step to determine pass / fail And a determining step.
[0021]
The test method of the automatic accident recovery device of the present invention is based on the estimation of the recovery function of the automatic recovery device that restores the normal power line from the change of the sensors and switches provided in the power transmission circuit subject to automatic recovery in the event of an accident. A fault circuit specifying step of creating a fault orientation table displaying each accident case in which the operation of each sensor provided in the power transmission circuit is estimated; An operation display step for creating a position table for each accident case in which the operation of each switch provided in the power transmission circuit is estimated, and a computer screen for each accident case in which information on the fault orientation table and the position table is estimated The test case table, result confirmation table, and simulation database are calculated and output by inputting the wiring diagram of the electric circuit displayed in A calculation step by a computer, a test step for inputting the simulation database and test case table as a test signal to the automatic recovery device, and a response result of the automatic recovery device is compared with the result confirmation table by this test step. And a determination step for determining the above.
[0022]
The sensor is a gas pressure sensor or a relay circuit.
The switch is a circuit breaker or a disconnect switch.
[0023]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of a test method for an automatic accident recovery apparatus according to the present invention will be described with reference to FIG. FIG. 1 is a flowchart for explaining a simulation database creation procedure for testing an automatic accident recovery apparatus. Since the automatic recovery apparatus has been described with reference to FIG. 6, the same circuit will be described with the same reference numeral, and detailed description thereof will be omitted. This test database creation procedure is a combination of technology that is more reliable for humans and technology that has a higher probability of human error.
[0024]
In other words, the former person is more reliable in the step of creating the “fault location list” and “position table”. The latter technique with a high probability of occurrence of mistakes by humans is a step of creating a “test case table, result confirmation table, simulation database” and the like created from the “fault orientation list, position table”. The latter creation step is automatically created by a computer (computer). In this way, a large number of accurate and reliable accident cases are created at high speed. Next, these will be specifically described.
[0025]
For each failure case estimated in step A, a “fault orientation list” is manually created on paper.
An embodiment of a failure case will be described with reference to Table 1. The fault orientation list is a table that describes the operation state of each sensor that performs a fault provided in the wiring diagram (system diagram) of the power transmission circuit to be automatically restored described with reference to FIG. This table is prepared for each estimated number of accidents (failures). Therefore, as shown in Table 1, it is a table that displays whether the operation of each part at the time of the assumed accident is “normal” or “abnormal”. Table 1 is a table for explaining an embodiment of the fault orientation list. Therefore, it is a table showing that an accident has occurred in the circuit of the part that is abnormally displayed. That is, a fault circuit can be specified.
[0026]
[Table 1]

[0027]
In addition, a position table is created. This position table is a table showing the operating state of each switch constituting the wiring diagram (system diagram) of the power transmission circuit to be automatically restored for each case of failure. Table 2 shows an example. . Table 2 is a table for explaining an embodiment of the position table. That is, it is a table in which the operating states of the disconnectors 55 and 59 and the circuit breakers 58 of the lines 53 and 54 are displayed as “ON” and “OFF”.
[0028]
[Table 2]

[0029]
From such a fault orientation list in Table 1 and the position table in Table 2, it is possible to identify which circuit in the system diagram caused the accident.
[0030]
B Step Information on the fault orientation list and position table created in step A is input to a computer (computer). This computer input is input, for example, on a personal computer screen (input from the screen in the manner of a CAD system). FIG. 1 shows a personal computer screen 1. In this personal computer, the wiring diagram (system diagram) of the power transmission circuit to be automatically restored described in FIG. 6 is registered and stored in advance. This power transmission circuit is an AC power transmission system shown in FIG. 6, that is, a circuit showing a system for transmitting power from the buses 51 and 52 of the substation to the lines 53 and 54 such as factories, buildings, and consumers.
[0031]
This power transmission circuit can be called and displayed on the personal computer screen 1 as necessary. Based on the fault orientation list and position table shown in Tables 1 and 2 on the displayed personal computer screen, a diagram entered for each fault case is a system state diagram. This system state diagram is input to the personal computer.
[0032]
Process C As a result, the personal computer 1 automatically creates and displays a test case table 2, a result confirmation table 3, and a simulation database 4 by software input in advance. The test case table 2 includes a system state confirmation diagram and a drawing data confirmation diagram. The former system state confirmation diagram is shown in FIG. 2, for example. The latter drawing data confirmation diagram is shown in FIG. 3, for example. First, the former system state confirmation diagram will be described. FIG. 2 is a system state confirmation diagram showing an embodiment of a failure case. This case is a system state confirmation diagram of a failure case in which a ground fault has occurred in the Kobar 1.
[0033]
The wiring diagram of the power transmission circuit has a configuration in which lines 53 and 54 are connected from the former and second bus lines 51 and 52 described in FIG. In this table, □ indicates a circuit breaker, ○ indicates a disconnector, a black circle indicates an x mark, 6 indicates that the disconnector is turned on before the accident and is switched off after the accident, and a single circle 7 indicates that the disconnector is OFF before the accident. A double circle 8 indicates an ON disconnector after the accident, and a black square X indicates that the circuit breaker has been turned OFF due to the accident.
[0034]
That is, before the accident, the disconnecting device 55 and the circuit breaker 58 are controlled to be turned on so that power is supplied from the bus 51 to the lines 53 and 54, and the power circuit from the Oto bus 52 is turned off and the standby circuit is turned off. Set to state. At one time, for example, a ground fault occurs suddenly at one location of the upper bus 51, and when this is detected, the circuit breaker 58 is turned off. Thereafter, it is confirmed that the maiden bus 52 is normal. Thereafter, the bus line 51 and the line disconnector 55 from the bus line 51 are turned off. Next, the disconnector 59 connected to the line from the maiden bus 52 is switched to ON.
[0035]
FIG. 2 shows a “system state confirmation diagram” of such a failure case.
[0036]
Such a “system state confirmation diagram” is automatically created by the personal computer calculating a number of failure cases estimated in the power transmission circuit of FIG. 6. A “drawing data confirmation diagram” corresponding to each “system state confirmation diagram” is also automatically created by the personal computer. The drawing data confirmation diagram is shown in FIG. 3, and shows the failed wiring location for each failure case.
[0037]
FIG. 3 shows a configuration in which all wires 11 are provided in the gas pipe 12 and the insulating gas is supplied into the gas pipe 12 in order to set the power transmission circuit of FIG. 2 in the insulating gas. The marking line 13 is written in the gas pipe 12 to indicate the sensing area of each gas pressure sensor. The description up to the figure in which the gas pipe 12 is provided in FIG. 3 is shown for explaining the sensing area in which the gas pressure sensor 57 is provided.
[0038]
The gas pressure of the gas pressure sensor 57 decreases when a large current flows through the circuit where the accident occurred. This change in gas pressure is detected by the gas pressure sensor 57 and input to the automatic recovery device as information. Such a “drawing data confirmation diagram” is automatically created by calculation using a personal computer. FIG. 3 shows a state in which a drawing data confirmation diagram is displayed as a failure case on the personal computer screen.
[0039]
Next, the result confirmation table 3 will be described. The result confirmation table 3 includes a state change message table and a result confirmation table. The former state change message table is shown in Table 3, for example, and the latter result confirmation table is shown in Table 4, for example.
[0040]
[Table 3]

[Table 4]

[0041]
First, the former state change message table shows the operating state of each switch in each failure case. The operation status is displayed as “ON” or “OFF”. Such a state change message table is automatically created by the computer. The latter result confirmation table is automatically created by the computer calculating the indicator lamp of the circuit provided on the panel of the switchboard of the power transmission circuit by displaying the presence or absence of lighting for each failure case. This lighting can be displayed by, for example, an LED light emitting element.
[0042]
Next, the simulation database 4 will be described. As shown in Tables 5 and 6, the simulation database 4 represents one word in 32 bits. Each of the first and second bus system circuit breakers (Circuit Breaker = CB), disconnector (Line Switch = LS). It is a database expressing the operation of “1” and “0”. This database is automatically created by the computer calculating before and after the accident.
[0043]
[Table 5]

[Table 6]

[0044]
The database created in this way is input as a test signal to the information control apparatus 71 of the automatic recovery apparatus 74 shown in FIG. 7, and the test is executed. The response result of the automatic recovery device 74 is compared with the result confirmation table to determine whether it is acceptable. If all the accident cases are judged “good”, they will be shipped. In this way, simulation data of the automatic restoration device 74 can be created at high speed and accurately by creating a process in which a human is likely to make a mistake with a personal computer. Therefore, it is possible to test the number of advanced technicians in a smaller number and in a short time.
[0045]
FIG. 4 shows a system for creating a simulation database by the C and D step computers. FIG. 4 is a system configuration diagram for automatically creating a simulation database. The flow for automatically creating a simulation database by this system is as shown in FIG. The central processing unit (CPU) 21 reads out the power transmission circuit from the power transmission circuit data file 24 and displays it on the display device 25 in accordance with a control program command in the main memory 23 via the bus 22.
[0046]
Based on the fault orientation list and the position table, data is input to the power transmission circuit displayed on the display device 25 by the input device 26 for each fault case. The input data is arithmetically processed with data registered in the image processing device 27, the test case table 28, the simulation data file 29, and the test result confirmation table 30 via the bus 22 by a control program registered in advance. By this arithmetic processing, a system state confirmation diagram, a drawing data confirmation diagram, a simulation database, a result confirmation table, a state change message table, and the like are output to the output device 31 as test case tables.
[0047]
Such a process flow is as shown in FIG. The simulation database creation process will be described with reference to FIG.
[0048]
Process 35
On the personal computer screen, information on the fault orientation table and position table shown in Tables 1 and 2 is input for each fault case.
[0049]
Process 36
The system state confirmation diagram shown in FIG. 2 is created from the system state confirmation data file.
[0050]
Process 37
The drawing data confirmation diagram shown in FIG. 3 is created from the drawing data confirmation file.
[0051]
Process 38
A simulation database as shown in Tables 5 and 6 is created from the simulation data file.
[0052]
Process 39
A status change message table for determining the quality of the automatic recovery device as shown in Table 3 is created from the status change message data file.
[0053]
Process 40
A test result confirmation table for determining the quality of the automatic recovery apparatus as shown in Table 4 is created from the test result confirmation data file.
[0054]
Process 41
Output simulation database and exit.
[0055]
In the above embodiment, an embodiment in which the power transmission circuit is applied to a power transmission circuit in a substation has been described. However, as long as it is an electric circuit, the power transmission circuit in a power plant, the power transmission circuit in an electrical room in a building, and the like, Any circuit may be used.
[0056]
【The invention's effect】
According to the present invention, a human can analyze a highly reliable technique and a technique with a high probability of human error, and can speed up testing of a highly reliable automatic accident recovery device.
[Brief description of the drawings]
FIG. 1 is a flowchart for explaining a simulation database creation procedure for testing an automatic accident recovery apparatus.
FIG. 2 is a system state confirmation diagram showing one embodiment of a failure case input to the computer screen of FIG. 1;
FIG. 3 is a drawing data confirmation diagram showing an embodiment of a failure case input to the computer screen of FIG. 1;
FIG. 4 is a circuit connection diagram showing a line system for transmitting power from a bus of a substation to factories, buildings, consumers, and the like.
5 is a circuit configuration diagram for explaining the configuration of the automatic recovery system of FIG. 4;
6 is a flowchart for explaining a procedure for creating a conventional simulation database for testing the automatic recovery apparatus of FIG. 5;
FIG. 7 is a circuit configuration diagram for explaining a conventional automatic recovery system.
FIG. 8 is a flowchart for explaining a procedure for creating a simulation database for testing a conventional automatic recovery apparatus.
[Explanation of symbols]
1 ... PC screen, 2 ... Test case table, 3 ... Result confirmation table, 4 ... Simulation database, 6 ... Black circle, 7 ... Single circle, 8 ... Double circle, 9 ... Black square, DESCRIPTION OF SYMBOLS 11 ... Wiring, 12 ... Gas pipe, 13 ... Compartment line, 21 ... CPU, 22 ... Bus-bar, 23 ... Main memory, 24 ... Power transmission circuit data file, 25 ... Display device, 26 ... Input device, 27 ... Image processing device 28 ... Test case table, 29 ... Simulation data file, 30 ... Test result confirmation table.

Claims (5)

This is a method to test the recovery function of the automatic recovery device that restores the normal circuit by changing the sensor and switch provided in the electrical circuit subject to automatic recovery in the event of an accident, using the estimated accident case simulation data. And
A fault circuit specifying step for creating a fault orientation table for each accident case in which the operation of each sensor provided in the electric circuit is estimated; and for each accident case in which the operation of each switch provided in the electric circuit is estimated An operation display step for creating a position table displayed on the screen, and information on the fault orientation table and the position table is input to a computer for each estimated accident case, and the operation of each switch provided in the electric circuit for each accident case. The test case table displayed on the screen, the result confirmation table indicating the lighting results of the indicator lamps, the calculation step by the computer for calculating and outputting the simulation database, and the simulation database and the test case table are input as test signals to the automatic recovery device. The test step and the response result of the automatic recovery device by this test step The method of testing an accident automatic recovery apparatus characterized by comprising; and a determination step of determining acceptability engaged. This is a method to test the recovery function of the automatic recovery device that restores the normal circuit by changing the sensor and switch provided in the electrical circuit subject to automatic recovery in the event of an accident, using the estimated accident case simulation data. And
A fault circuit specifying step for creating a fault orientation table for each accident case in which the operation of each sensor provided in the electric circuit is estimated; and for each accident case in which the operation of each switch provided in the electric circuit is estimated The operation display step for creating the position table displayed in the above, and the information on the fault location table and the position table are input to the wiring diagram of the electric circuit displayed on the computer screen for each estimated accident case, and the test case table A calculation step by a computer for calculating and outputting a result confirmation table and a simulation database, a test step for inputting the simulation database and a test case table as test signals to the automatic recovery device, and a response of the automatic recovery device by this test step A determination step for determining pass / fail by comparing the result with the result confirmation table; Test methods accident automatic recovery apparatus according to claim Rukoto. In the method of testing with the data for simulation of the estimated accident case, the restoration function of the automatic restoration device that switches to the normal bus from the change of the sensor and switch provided in the power transmission circuit subject to automatic restoration at the time of accident There,
A fault circuit specifying step for creating a fault orientation table for each accident case in which the operation of each sensor provided in the power transmission circuit is estimated, and an accident in which the operation of each switch provided in the power transmission circuit is estimated An operation display step for creating a position table displayed for each case, and information on the fault orientation table and the position table are input to the wiring diagram of the power transmission circuit displayed on the computer screen for each estimated accident case. A calculation step by a computer for calculating and outputting a test case table, a result confirmation table, and a simulation database, a test step for inputting the simulation database and the test case table as test signals to the automatic recovery device, and automatic recovery by this test step Judgment step of judging pass / fail by comparing the response result of the device with the result confirmation table The method of testing an accident automatic recovery device characterized by comprising comprises a. 4. The test method for an automatic accident recovery apparatus according to claim 1, wherein the sensor is a gas pressure sensor or a relay circuit. The test method for an automatic accident recovery apparatus according to any one of claims 1 to 3, wherein the switch is a circuit breaker or a disconnecting switch.

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