JPS6043014A - Digital protecting relaying device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] The present invention is a digital protection relay device ((gate, especially a digital protection relay system that performs protection calculations entirely in a multiprocessor system!
Regarding equipment.

The 1111 ('1) configuration of the conventional digital Hosaki electrical equipment is shown in Figure 1. In the same figure, the snow field is formed at the analog input section 101r and i, and detected from the heavy voltage transformer P T [C]. The analog voltage corresponding to the electric current and voltage is input. /, 2 is the filter /21~/J, +r
i J: Configured filter chamber 1. ', the analog-to-digital (A/D) converter consists of n sample-and-hold times q% IQ-A I~/eA, multiplexer 1 IAB and A/D converter //70. 'are doing. The oscillator that generates the 611 timing, which saves time, is the A/D converter.
The D-converted digital data is written to the RAM, which will be described later.
rt, RAλ, the entire data that has been exposed to the sword, and the prescribed protective performance W<H, CP
Consists of U20A, ROM, 20B, micro program section, 700$, micro program section Wa
Based on the output, the bipolar CPU executes protection calculation processing at high speed and makes an accident determination. 7u is a man-machine interface for inputting setting values (for calculations) and display control. 7A ld
A section 176 outputs protection calculation processing to an external auxiliary relay (not shown); 2f is a main bus (for data exchange, etc.);

Conventional digital protection equipment performs the desired protection operation W under the supervision of the high-speed 0PU2OA with nine crotches in the protection calculation unit 20 as shown above, and operates one external relay according to the connection of -[. Maintaining the lineage and conducting iI.

However, when there is a large amount of input data, the high speed OP0.2
(With 7A, the processing may not be able to keep up in time, and due to the high-speed operation, the heat generated outside the circuit also decreases reliability.) There were cases where the processing time was insufficient to execute the entire t'Lrc program.

In such a case, conventionally, the protection calculation section 20 performs a so-called thinning process according to the weight of the protection calculation process, but there is a problem that the software becomes complicated.

The present invention has been made in view of the above points, and is a multi-purpose
By adopting a processor method and allocating all the C protection calculation processing, it is possible to ensure that each OPU performs the desired protection calculation processing even with low-performance operation, and this eliminates the need to take heat generation into consideration during manufacturing. The purpose of the present invention is to reduce power consumption, realize hIp processing for multiple inputs, and reduce %Y to 1t, 71j and 71j while eliminating +y3j and reducing power consumption.

Today in IJ, I.t), the objective sound of word 12 i is happy to see (te, f skin 4+, I... current from the sowing system, voltage 1
1 All analog-to-digital conversion is performed, and this digital data is written into RAM M from M
In a digital protection relay 1 device that performs protection calculation processing 1 under the supervision of
U or C] is maintained by a multi-processor.
Part 1'＾〒 brother and engineering (N board RAM' which divided the data storage area of the RAM for each cpυ!+1
- has the same data *^^ in this n boat T'l A)4 by DMA, and each ap.

11. I: Corresponds independently from other OPUs, extracts predetermined data tiles from the data area of the boat RMA, performs the desired protection calculation, and protects the data.
i 'j' Output information from part 1'! 11 (LJq, 1.+V L from output means such as an output controller that operates an external Urasuke relay based on C).

Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.
I will clarify.

Figure 2 shows the present invention ((Digital 11, 3 exposure relay electrical equipment)
One'1! It is a block diagram showing the entire embodiment, and the same reference numerals as in the first example indicate the same parts.

True truth! In the KIi example, t, as will be described later, is the content of the operation processing '? g: The entire storage section '11' is composed of a multi-processor consisting of n OPUs, and an n-board RAM My2N is provided in which the data storage area of the RAM is divided for each OPU. Figure 3 shows the details of the main parts. shows.

Here 1.721~:12. l': L n boat) 1
A M, 72? J fq This is a data storage area divided for each CPU, and 2g1 to 2z, fd each data storage area, '
1.11～. F26 and protection calculation unit jQt~, 70. A dedicated nox dechiru that combines with.

-Hiji Yasutaka operation unit 301- , 'to,' is the first security operation unit? O1, the data storage area of the n-boat FIAM, 21 of the configuration with the bus 2/ri that connects all of them.
I'll''+> Shown in Figure 4. ? 0Aiil:0P
TJ,,t□Bi is ROM, ? OD1 has six man-machine interfaces.

In this embodiment, as shown in FIGS. 2 and 5,
Output controller, 'J, 2 All installed and protected calculation section? All the output information indicating the protection calculation processing results from 01 to 709 is concentrated to an external divine successor (not shown) 71fj! It is configured to operate on land.

One embodiment of the present invention is constructed as F as described above, and its operation will be explained next.

First of all, the protected system is converted to n-baud 1-RA by using the same digital data that has been A/D converted by A/D autopsy.
Each data storage that makes up M2.2N,
2 pieces, each with a blue color! F. Each protection calculation unit 701~
10. Each OPU provided with f'Lflc? 0A, other δ
P11 and t,i, independently corresponding n boats TtAM,
2. Read the specified data from the 2N data Z'' and fill in the desired culm. As shown in , the asserted value 5C force k, the Roman Machine Iys-Fusx-RL
'on t t' is provided, so each input data (, the calculation result and setting [1. r”,
Output 1 is focused on output controller 1.2 as output 12
, based on this concentrated output information -5 external field 1111
1'! : Activate the treasure.

In addition, in the above-mentioned performance 1r11, there were 71 performances tO,~jQ
, O P U (d3 (1° (1,6
ms), 600 (a8 ms) sampling timing, and the protection operation is performed at the same sampling timing. +, each OP TJ monitoring! -j A/T) conversion unit tli-, DMA I&
Bamboo input section and output controller 7.2)・II
It is designed to be performed standing up.

The present invention is as described above, and maintains by adopting a multi-processor system: Because I searched, each CPU was low;
・The desired protection calculation processing function can be secured in one pass operation. In this way, each C'P TT has less than 90 degrees of high-speed operation, so when manufacturing, it is necessary to perform
It becomes easy to make one work. Since the CPU operates at low speed, it is possible to reduce power consumption by 9 times. Furthermore, even if a large number of input data are processed, the multi-processor method can perform the calculations that can be performed using the IIl'L Pill content amount of 411. .

[Brief explanation of drawings]

FIG. 1 (1, l: Conventional digital layout [i': "1.
Block diagram showing an example of 1f, i/l, fair for li river T, 2 figure is related to the present invention 7) f digital protection f1
't:1 m Block diagram showing an example of an example of the device I, Part 3
Figure (I) is a block diagram showing the details of the main parts of the 1st device, Figure 4 is a block diagram showing the bus configuration in each calculation section of the device, and Figure 5 is the FIG. 1 is a block 1 diagram showing the output controller of the device. Slag... A/D conversion section, /A... emission device, /8... DM
A. ,2.2 N-n boat RA ,M , ,l,2.
−． 7. i, ,,, day 41fu samurai area 1.2/l ~
, 2 #o...Pass, "1 ~.
・RQ P, 4,'0T-=-r 7-Machine interface, N2...Output controller. Figure 11 Figure 2

Claims (3)

[Claims] (1) The current and voltage l from the injection chamber 1 and 'q system are analog f-in 1! i'''・shi, this f digital data r1νA+C, r, sl'i, 'l'+i;,
7 A'::～include, C'7) l A? ,lds
f = ”) ::V(-7 outing data money 1/-1
Te O'P U L7) Crab vision, 1-115 tatami + 3 Tora Sanho lTf! l? Teudi) Talho7i, l'I? '
7j % to 171c 1r ite, protection i* 'IT
A's 1 processing fee per day 1 - n pieces (l P T, +
A multi-professional team consisting of t'koyori promotion ma? Tora q part money (consisting of IC, RAM q) data storage M
4p, 1. , q For each c 'p u/;+ divided n boats RA 'A f, and this n boat RAM M+
cn MA r, c and same theme * rr: light * included, each OPU is another OPU,! : jd independent fC compatible 4n-bot FIAM data storage area Rikishima etc. Extracts all 1 of predetermined data via each dedicated bus and performs desired maintenance 1 calculation ♀ line 1. q, an output means to operate an external relay based on the output information from the protection calculation section;
Digital protection 1 relay trade with Q-sign as '(￥Charge). (2) Each aP U ir constituting the protection calculation section
, j sampling for analog-to-digital conversion,
Claim No. (1) A digital protective relay device with a rectangular layout, characterized in that the protection relay is transmitted at the same timing. (3) Previous me output child e ld, +11 record P'
r'+Q Arithmetic i1[1k PI"l +Rr each OPU
I: ?It was carried out under the supervision of ? J15 Output control that concentrates output information indicating the iJ arithmetic processing results and outputs it to an external device.
+'rDigital storage as described in claim (1) or (2)! Relay device.