RU2570572C1 - Microprocessor control panel - Google Patents

Abstract

FIELD: electricity.

SUBSTANCE: microprocessor control panel comprises control and alarm module (CAM) with microprocessor, functional alarm subsystems, subsystems of registration, command processing, synchronization, communication, diagnostics, unit of contact I/O relay modules (CIORM) that consists of individual modules performing functionally complete operations with function of false command exception, availability of the master interconnection board for arrangement of data exchange between CAM and CIORM, as well as power supply module (PSM) supplying functions of control voltage filtering module, power supply protection module, voltage drop protection module and power supply module. Functionality of the microprocessor control panel is sufficient to ensure uninterrupted operation and prompt warnings on controlled events.

EFFECT: reliability improvement.

3 cl, 8 dwg

Description

The invention relates to devices for relay protection and emergency automation of energy networks with automated control, namely, to a microprocessor control panel (MPU) with relay modules.

The scale and complexity of high voltage networks require the use of protection systems with high reliability. Protection is based on information received from one or more points of a power system. Quick selective protection of long circuits such as cable and overhead power lines requires the exchange of information between their ends. Relay protection (RE) command transmission devices and emergency control (PA) transmit command signals from protection devices through high-voltage networks of energy companies, between control centers of energy companies, stations that generate electricity, and high-voltage substations that distribute electricity. Since the same equipment can be used to transmit commands to different transmission media, the transmission time of commands can be different, the logic of work, etc. may also differ, which complicates the timely processing of information, decision making and the issuance of commands appropriate to the situation. Existing protection and automation systems assume that the transmission time parameter must be constant. Changing the parameters or transfer logic in the automation system region / region / channel, can cause a complete restructuring of the network.

For the normal operation of protection systems and emergency automation, control panels are used that allow you to quickly display commands, change the direction of their transmission and perform logical operations on command signals. Examples of RP commands: blocking, accelerating, enabling, disconnecting. Examples of PA commands: informational, emergency, executive.

There are various electromechanical and microprocessor devices RE and PA for - energy networks. However, the equipment currently known for laziness, as a rule, does not have a built-in event recorder and cannot be connected / integrated into the SCADA system, in addition, the design does not allow for prompt configuration, replacement and repair.

SCADA (Supervisory Control And Data Acquisition) is a software package designed to develop or provide real-time operation of systems for collecting, processing, displaying, and archiving information about a monitoring or control object.

The prototype of the proposed technical solution is the CP-24 control panel, developed by ABB employees.

The CP-24 control panel is mentioned in the article ″ ABB Energosvyaz - 5 years of successful operation ″, the newspaper Энерг Energetik ″, No. 8, 2008, the article ″ The CP-24 control panel - is a compact reliable control system for transmitting signals from RP and PA commands ″, newspaper "Energoprogress", Special issue of LLC "ABB ENERGOSVYAZ" - 5 years, 2008. The CP-24 control panel is certified and openly used at a number of power plants, and was also openly displayed at exhibitions, for example, in 2010 at the exhibition "Relay protection and automation of power systems 2010 ″, see http://www.energyfoto.ru/?p=123.

The CP-24 control panel has a modular structure. The main ones are the relay module block (BRM) and the control unit (CU), which provides processing of command signals, alarms, and alarms. The BRM consists of several relay modules, each of which processes one relay protection command (reception and transmission). One control unit provides processing and control of up to 24 relay modules as part of the BRM. This structure simplifies troubleshooting by localizing the modules, each of which is a functionally complete device. It is possible to install from 1 to 24 relay modules in any configuration. It provides for integration into automatic process control systems (automated process control system), non-volatile memory, synchronization of work with the equipment being serviced.

Similar solutions are known that are described in Russian patents for utility models RU 115970, RU 115971 and inventions RU 2479903, RU 2479904. The device for monitoring and controlling signals of RE and PA contains a microprocessor module, a module for receiving signaling signals, an output module for signaling signals, and a group of inputs and outputs for connecting to a PC and automatic process control system, as well as an external filter module connected via an appropriate circuit board of relay modules to at least one relay module, capacitor block module, power supply module, module eshney clock synchronization, wherein the modules are provided with the mechanical relay Disconnect manually operated to disconnect the device from the input and output circuits. The technical result is to increase reliability, reduce setup and maintenance time.

It is known that to ensure the reliability of power supply in high voltage networks, signal transmission systems of RE and PA commands are used. The general system for transmitting commands of RE and PA includes channel-forming equipment for transmitting commands of RE and PA, equipment for monitoring and controlling teams of RE and PA, as well as actuators themselves. The scale, complexity and power of these networks requires ensuring the high reliability of each element of the command transmission system of RE and PA. To prevent damage to consumers (due to power outages) and energy enterprises (due to untimely shutdown of the emergency section of the line), fast command transmission and the right decision to disconnect or switch high-voltage lines are required.

The proposed microprocessor control panel (MPU) is designed as an additional device for the joint use of various types of equipment for transmitting relay protection commands and emergency automation. The MPU meets the requirements of the European EMC Directive 89/336 / EEC and relevant Russian standards.

MPU is an instrument for monitoring and control of signals of RE and PA. It is intended for receiving signals of RE and PA commands from RE and PA devices and issuing these commands to transmission devices such as ETL500, ETL600, FOX515, FOX615 from ABB, as well as receiving signals of RE and PA commands from transmission devices and issuing these commands to actuators such as ABB's REC670, REL670, RED670.

The MPU uses digital signal processing, which eliminates the need for calibration. The main feature of the operation of the monitoring and control systems of signals of RE and PA is the functionality, visibility and ease of operation.

To reduce the time of transmission of RE and PA signals from RE and PA devices on one side of the line and to actuators on the other side of the line, it is required that the signal / information processing time on each link of the overall system be minimal. MPU is universal and provides the processing of commands received at the inputs and the issuance of commands to the output connectors of the modules, regardless of the types of command transmission equipment and actuators. Almost all the equipment for transmitting commands RH and PA and actuators support the issuance of commands using a “dry” contact, and the reception of commands is carried out through a discrete input, the parameters of which are standardized in STO 56947007-29.120.40.102-2011. In this case, the presence of a command on a digital input is determined by the voltage level at the digital input and the current flowing through the digital input.

The functionality of the MPU provides interfacing of the connected equipment according to time characteristics and thereby standardizes the operating modes of the general command transmission system, reducing the amount of equipment used, installation, and thereby increasing the reliability of operation.

The MPU contains a control and signaling module (ICC), which provides signal processing for signaling and alarm commands and BRM, which consists of separate modules that perform functionally completed operations. One MUS provides processing and monitoring of up to 24 relay modules of discrete inputs / outputs (MDVV). Any installed relay modules can process both the same command and different commands.

The MDVV relay module, as a rule, contains two optocoupler inputs, one solid-state output and four parallel powerful (electromechanical) relay outputs. The inputs and outputs, depending on the configuration, may contain potentials, but all of them are isolated from the ground and other circuits. Commands can be assigned individually to any input / output. All input and output circuits, power supplies are isolated by direct current from each other and from the "ground".

The user can access the MPU through a personal computer (PC or PC) connected to the serial interface on the front panel of the control unit. The HMIPanel program installed on the PC (human-machine interface) allows you to set various operating modes and equipment parameters, as well as view the operating and emergency conditions of the equipment.

Many events (usually more than 3000), the moments of the beginning and end of commands can be recorded and stored with time stamps in non-volatile memory. The event logger can be synchronized with an external time signal (for example, a GPS receiver) to accurately record the time of events. Events can be viewed as text through the HMIPanel program. In addition to the event logger, there are built-in command counters for each transmitted / received command and alarm and alarm commands. Each command can be programmed with its own parameters and operating mode.

The main principle of operation of the proposed MPU is similar to CP-24 and devices disclosed in patents RU 2479903 and RU 2479904.

The main advantages of MPU compared to the CP-24 control panel are:

- digital signal processing;

- the presence of a multifunctional control and signaling module (MUS), in which all the functional elements are made on the same board, which were previously separate blocks in the SR-24, due to this the circuit has become compact, installation and maintenance have been simplified;

- instead of the external filter module, the overvoltage and interference protection circuit of the power module (MP) was used;

- instead of the capacitor unit module, a protection circuit against power supply dips ”of the power module (MP) was used;

- Added block providing information security;

We are talking about protecting information from unauthorized access (unauthorized access) stored in the MPU in order to change / delete it. To change / delete information, you must go through the authentication procedure. An example of information protected from unauthorized access: configuration, event logger, event counters. The functionality is implemented in the ICC module in the communication subsystem.

- Each relay module has an additional function for eliminating false commands.

The ICC interacts with industrial control systems according to the GOST R IEC 60870-5-101 protocol. The ICC also supports the ability to synchronize time using this protocol. The RS-485 and RS-232 interfaces are used as the physical layer for data transfer.

The drawings show:

FIG. 1 - Block diagram of the SR-24;

FIG. 2 - General view of the MPU;

FIG. 3 - Block diagram of the MPU;

FIG. 4 - Block diagram of the ICC;

FIG. 5 - Block diagram of the relay module MDVV;

FIG. 6 - Block diagram of the alarm subsystem;

FIG. 7 - Block diagram of a synchronization subsystem;

FIG. 8 is a block diagram of a power module.

MPU, see FIG. 2, located in the closet. The block diagram of the MPU is shown in FIG. 3. The MPU contains the ICC with inputs and outputs of signaling signals, outputs of alarm signals, an input for resetting signaling signals, alarms and confirmations, an output for acknowledging signals of transmitting signals (transmitting), and an output for confirming signals of transmitting signals (reception). MUSC is connected to the main connection board (OSB), connected to the power supply module (MP), an additional connection board (SPD), and a digital input / output module (MDVV). In FIG. 4 shows a block diagram of an ICC. The ICC contains the signaling, registration, command processing, synchronization, communication, diagnostic, and corresponding input / output subsystems. In MPU there is no cross-board control module as in CP-24. Local controls and light signaling are placed on the front panel of the ICC. To reset alarms and alarms, one common button is used. In the CP-24 equipment there is no protection against unauthorized access (unauthorized access), while in MPU this protection is implemented in the ICC module, while it is possible to set a password up to 10 characters inclusive, the password can be stored in non-volatile memory of MPU equipment, the beginning and end sessions are recorded in the event logger, an incorrect password attempt is recorded, a password change is recorded. In essence, the ICC is designed to organize an exchange bus between all modules, provide light signaling (LEDs), provide local authorities, provide alarm and alarm outputs, provide remote reset of alarms and accidents, provide alarm inputs, provide real-time clock synchronization, organize protection against unauthorized access. In FIG. 5 shows a block diagram of a DVMV. DVA contains a microcontroller, a PPR command input preprocessing circuit, a PPR command input preprocessing circuit, a PPR command output generation and propagation circuit. In FIG. Figure 6 shows a block diagram of the alarm subsystem, which contains a switching matrix, a circuit for preprocessing alarm inputs, a PFD, a PFM, a circuit for generating alarm outputs, a circuit for generating alarm outputs, a circuit for generating confirmation outputs, a reset input preprocessing circuit. In FIG. 7 shows a block diagram of a synchronization subsystem that includes a synchronization source selection module (VIS) and a real-time clock module. VIS is connected to the subsystems: command processing, signaling, registration, communication, diagnostics. The VIS is also connected to the MDVV via the control bus and transmits synchronization signals to all subsystems of the ICC and all the modules of the DVMV. In FIG. 8 shows a block diagram of a power module. The power supply module (MP) combines the functionality of the following modules: the functionality of the operational voltage filter module (opertok) for the output of the PRD commands and the input of the PFP commands; the functionality of the power protection module against voltage drops at the input, with the exception of the function of monitoring the backup power charge and the backup power function of LEDs functionality of the power supply module. MDVV fully meets the requirements of the standard of the organization of JSC FGC UES STO 56947007-29.120.40.102-2011 “Methodological guidelines for engineering calculations in direct current systems to prevent the malfunctioning of digital inputs of microprocessor relay protection and automation devices, when earth faults occur in operational circuits DC power of UNEG substations. ”

The MPU is connected to the input and output signal equipment using plug-in connections on the rear side of the device, which can be terminal connectors with spring clips. When using additional connecting cables, the signals can be output to terminals with a disconnector. The serial interface on the front panel of the MPU is intended for maintenance and diagnostics, including for commissioning. By connecting a PC / laptop to this interface, you can get information about the parameters of the equipment, the used firmware and the condition of the equipment without disrupting the normal operation of the MPU. Through this interface, hardware configuration is possible. The chassis of the control unit is equipped with a power module. The power supply cable is connected to the terminal contacts on the rear of the MPU equipment. It provides power protection against voltage dips at the input and voltage filtering, which can be used to output the signals of the PRD commands and the input of the signals of the PRM commands of the DVAM relay modules. The chassis is equipped with a control and alarm module. The chassis is also equipped with a control backplane for the main backplane (OSB). The module is designed to organize the exchange bus between the control unit and installed relay modules. The chassis is also equipped with one additional cross-board relay modules. The module is designed to organize the exchange bus between the ICC and the installed relay modules. The chassis of the Relay Module Block is equipped with from one to twelve boards of relay modules MDVV. The module is intended for receiving, processing and issuing PRD and PFP commands.

The ICC module includes a microcontroller providing general control over the state of the entire system and leading general monitoring. Program codes and operational data are stored in the high-speed internal non-volatile memory of the microcontroller. Event logger data is stored in external non-volatile memory. The microcontroller polls the installed DVMV modules, processes the received information, and, if necessary, saves the events in the event logger. The ICC is an integral part of the MPU. The ICC performs the general processing and control of input and output signals.

The alarm subsystem is responsible for the visual display of the passage of at least one PFR command, the visual display of the passage of at least one PFR command, the visual display of the physical state of the alarm and alarm outputs, the reset (transition to the primary (normal) state) of the indication and the physical state of the alarm outputs, alarms and confirmations, the formation and fixation of the physical state of the alarm outputs, accidents and confirmations, the switching of external and internal signals to the alarm outputs, switching ext morning signals to the outputs of the accident.

A switching matrix is provided, which performs logical operations on the signals of commands and alarms and performs their switching. Designed for receiving alarm commands, combining into logic and direct issuing of commands to the alarm and alarm generation circuit. Synchronously with the issuance of an alarm or alarm command to the set output, the red LED on the MUS corresponding to the used output lights up.

Also used is a preprocessing circuit for alarm inputs, which receives signaling commands. The signal is converted to digital form and transmitted for further processing to the switching matrix. The command signals are sent to the microprocessor, where the pre-processing of the commands takes place (response delay time - time delay) in accordance with the configurations established for each input individually.

For any of the inputs, it is possible to use an internal voltage source as the response voltage of the command. Setting the use of the internal / external command voltage source is done using a jumper. Thus, for the normal operation of the module, it is necessary to select the source of operational voltage (internal / external) and the rated operating voltage.

The circuit for generating alarm outputs and alarms generates, fixes, and resets the physical state of alarm outputs. As the output contacts are used contacts of an electromechanical relay with mechanical interlock. The event at the relay output is held until it is reset using the appropriate button on the ICC and / or an external remote reset command is sent to the corresponding input of the remote reset block of alarms, alarms, and acknowledgment of the reception / transmission of received and transmitted commands.

When the system power is turned off, the status of the alarm output, alarm (1), confirmation of the input of the transmission and control commands is saved. When the power is turned on, the alarm output state (2) changes from normally closed to normally open or from normally open to normally closed, depending on the configuration of the programmed jumper. The choice of the type of command issuing - normally closed or normally open contact, programmed by jumpers.

The registration subsystem is responsible for logging / recording events occurring in the MPU. The events recorded in the MPU are recorded in the recorder, they are provided with a time stamp and stored in non-volatile memory. All events are recorded in one common memory block. Information for setting time stamps is taken from the real-time clock (RTC) located in the ICC. Current date and time are set via HMIPanel. If the accuracy of the RTC is not enough, or you need to synchronize the operation of the terminals, you can use an external GPS synchronizer. The event log can be viewed from the HMIPanel.

The command signals are sent to the microprocessor, where the pre-processing of the commands in accordance with the loaded configuration for each module.

The following operating modes are provided:

Independent mode - the commands received at the input of the module are issued to the output of this module without mutual sequential shift. These commands are independent of the commands operating in the "Serial" mode and have the same priority.

"Sequential" mode - the commands of this group are transmitted sequentially without interruption within the group. Priority within the group corresponds to the module number.

″ Anti-bounce ″ mode - the time the command is continuously on the input of the module (delay to turn on the command). The command is fixed by the module after passing anti-bounce.

″ Fixed shift ″ mode - after issuing a command to the output of the module for which this function is enabled, during this time, a delay in issuing any other incoming command with this function enabled is guaranteed (the command is delayed until the time of the fixed shift tз has expired).

The synchronization subsystem is designed to synchronize the hours of the time of recording events in the event recorder from external synchronizers: in the IRIG-B format, in the RS232 interface of the configuration port (PC), in the communication interface with process control systems, using an open protocol. The real time clock (RTC) sets the system time. RTC can be synchronized with external one-second pulses or an IRIG-B signal from a GPS receiver. This signal is fed to the ICC. The synchronization input connectors (IRIG-B) for the real-time clock are located on the rear side of the ICC. Optocouplers provide electrical isolation.

To interface the equipment with the automatic process control system within the substation, several MPU devices can be interconnected via a two-wire serial bus of the station (RS-485 interface). Each MPU will be available at a unique device address. Connection to the serial interface (RS485) is carried out on the rear panel of the ICC. Exchange is carried out by an open protocol. For configuration and monitoring of the MPU, one of two interfaces can be used (RS232 (PC) or RS485 (on the MCC001 module)). RS232 can only carry out configuration, and RS485 can only monitor the system.

The diagnostic subsystem works in a standard operating mode, i.e. when the power is turned on, all modules are initialized and then the microprocessor on the ICC module polls all the modules every millisecond. In case any inconsistencies or malfunctions occur, an alarm signal is generated in accordance with the specified processing algorithm and the installed configuration of the modules.

On the ICC module are located the buttons "Reset", "Test". When you press the button “Test Rx”, the LEDs “Rx” of the commands on the MDVV modules and the LED “Rx” on the ICC light up, and the command to exit is not issued. ≈1 second after releasing the button, the LEDs go out. Thus, the functioning of the display of the PRD commands is checked. Similarly, testing for the display of the availability of the PFP command is performed by clicking on the "PFP Test" button. All alarms and alarms are reset by the “Reset” button located on the ICC.

When organizing MPU communication with external devices via RS232 or RS485 interfaces, two tasks work in parallel - information processing on MPU and work with an external device. These tasks are independent and do not affect each other. Internal testing is carried out in free time from the main tasks.

MPU converts the primary voltage supplied to the supply input into a voltage suitable for powering other hardware components of the device, additionally ensuring the operation of the device for at least 500 ms after the failure of the primary voltage. The MPU is also equipped with a protection and filtering circuit for power and slips for the output of the Tx commands and the input of the Tx commands, which allows you to get rid of or reduce the influence of high-frequency noise in the slides submitted to the inputs.

The DVA relay module serves as an input / output interface for the transmitted and received commands for the MPU. It is designed to receive and transmit transmitted (Rx) and received (Rx) command signals and provides communication between the ICC and external protection equipment. Communication with the linear interface modules takes place via the relay module control bus (SHURM) on the OSB or SPD module (additional connection board). The MDVV module consists of an input with optocouplers of transmitted commands, a solid-state output of transmitted commands, an input with optocouplers of received commands, and four relay outputs of received commands. Each of these inputs and outputs is electrically isolated from the rest, as well as from internal circuits and from the ground.

The MDVV module is installed in the OSB or SPD board on the front of the chassis. Internal DVA signals are connected to the bus board using the DIN41612 connector. External signals are available to the user through a Phoenix spring-type terminal block. The microprocessor performs all the necessary operations for the formation and reception of transmitting and transmitting command signals. Rx and Rx commands operate independently of each other in accordance with the established characteristics and configurations of the commands. The number of modules installed in the system, and their configuration is determined by the user. Each module can operate both independently of the others (“Independent” mode), and in conjunction with the use of priority (“Serial” mode).

The configuration of the parameters of the Rx and Rx inputs and outputs of the DVA modules is performed using the HMIPanel software.

Operating mode "Independent"

This mode of operation is designed to issue commands with a minimum delay (blocking commands). The command received at the input of the module is programmatically processed by the module (processing time not more than 200 μs) and programmatically issued to the output of the module with the specified parameter for generating the output duration.

"Sequential" operating mode

This operating mode is intended for sequential (priority) transmission of commands (enabling and disabling commands). This mode can be used with the equipment for transmitting commands RE and PA, where this feature is not provided. A command processed by a module with a lower number takes precedence over commands processed by modules with a higher number. When several commands arrive at the inputs of this group, the transmission of the command with the highest priority begins, and the commands with the lowest priority are transmitted after the transmission of all the commands with the highest priority.

MPU command recorder - information about the beginning and end of all signals appearing on the front end and front end inputs and outputs of the DVMV module is recorded in the journal; alarm inputs; alarm outputs; accident outputs; output confirmation receipt of the PRD commands; output confirmation of the reception of PFP commands; remote reset of alarm outputs; remote reset of alarm outputs; remote reset of the acknowledgment receipt of the PRD commands; remote reset of the acknowledgment of reception of PfP commands. In addition, information about the actions performed on the Control Panel is displayed: clicking on the buttons; resetting event counters; starting and rebooting the system; time setting; system configuration; configuration read errors at startup; setting the address and access password.

Time synchronization from an external source - to increase the accuracy of the MPU system time, you can use an external source of time signals. The time signal must be in IRIG-B format (TTL-compatible) and must be connected to the ICC at the appropriate input. The IRIG-B format contains data only on the time and number of days that have passed in the current year, without specifying the year. The time and date must be set manually to provide the MPA with information about the current year.

Below is a detailed description of the MPU regarding the element base.

The 220 V power is supplied and converted to 12 V and then, through the connectors and printed conductors, it is transferred to the OSB, MDVV from 1-12 and the ICC. The 12 V power supply from the OSB is transmitted to the SPD via connectors and cable. Operoki 1 and 2 go to the power module and then through the connectors and printed conductors are transmitted through the OSB to the modules MDVV 1-12. OTER slides are transmitted to the SPD through connectors and cable, and then through the connectors and printed conductors are transmitted to the MDVV 13-24 modules. Data between the ICC and the DVA is transmitted using the control bus. The control bus is implemented using the standard SPI interface without a chip select signal (CS). The control bus from the ICC module through the connectors and printed conductors passes through the OSB to the MDVV 1-12 modules. Also, the control bus passes through the SPD to the DVVV 13-24 modules. The connection of the control bus OSB and SPD is carried out using a loop. The master is the ICC. The ICC interrogates all 24 DVA modules in one ms. An address bus is used to select a specific DVA module. The address bus is implemented using five standard I / O ports of the Atmel microcontroller with the 8051 architecture (AT89C51ED2) and allows addressing up to 32 modules. The address decoders on the OSB and SPD convert a 5-bit address into a selection signal of the DVMV module, depending on the slot in which the module is located.

The control and signaling module (MCM) consists of two modules: the control module - MPU_CPU, then the MPU_CPU module, the alarm input and alarm reset module MPU_SIGN, then the MPU_SIGN module. The MPU_SIGN module receives 8 alarms and one remote alarm reset signal. Signals are sent to the input stages of the module through the X2 connector, type 1762431 (Phoenix Contact). Input cascades are designed for galvanic isolation and normalization of input command signals, then normalized signaling signals are sent to the MPU_CPU module through the XI connector, type PCN10-64P-2.54DSA (Hirose Electric Co). The MPU_SIGN module generates 4 output signaling signals, two alarm signals, a confirmation signal of the transmission, a confirmation signal of the transmission. The indicated signals are issued by the MPU_SIGN module via connector X3, 1762444 (Phoenix Contact). The output signals are generated by the output stages of the module under the control of the signals generated by the MPU_CPU module and received through the XI connector, type PCN10-64P-2.54DSA (Hirose Electric Co). All output signals are galvanically isolated from the internal signals of the MPU panel. The MPU_CPU module is designed to control all the modules included in the MPU, the module also contains interface connectors for connecting external devices to the MPU. The central processor of the module is a DD1 chip, such as At89C51ED2-SLSUM (Atmel), which implements the basic functions of control and monitoring.

MDVV modules are controlled and controlled via the SPI interface through the X2 connector, type 09231326921 (Halting). The input and output signals for the MPU_SIGN module are transmitted through the X201 connector, type PCN10-64S-2.54DSA (Hirose Electric Co). To connect external devices via the RS-232 interface, an X502 connector, type 5747844-6 (Tuso), is installed on the front panel of the module, so the RS-232 interface signals are fed to the D401 processor, type LPC11U68JBD100E (NXP, through buffer, galvanically isolated cascades) Semiconductors) and then to the DD1 CPU. The D401 processor is used to implement security functions when working with external devices. To connect external devices via the RS-485 interface, the X3 connector is installed on the back of the module, so the RS-485 interface signals, through buffered, galvanically isolated cascades, are sent to the D401 processor, and then to the DD1 central processor. The D401 processor is used to implement security functions when working with external devices. To connect the external clock source via IRIG-B signals, connectors X601, type MSTB2.5 / 4-GF-5.08 (Phoenix Contact), X602, type MSTB2.5 / 4-GF-5.08 (Phoenix Contact) are intended. Connector X601 is an input connector for an IRIG-B signal, connector X602 is an output connector for an IRIG-B signal. The signals of the IRIG-B interface, through buffered, galvanically isolated cascades, are fed to a D302 processor, such as At89C51ED2-SLSUM (Atmel), which implements the functions of the synchronization system. The MPU panel can be synchronized both from the built-in clock and by external synchronization signals from the IRIG-B interface. The MPU_CPU module implements the functions of controlling the external display and manual control of the MPU panel. Some of the LEDs and control buttons are located on the MPU_CPU module, part on the MPU_SIGN module. All display and manual control functions are implemented in the central processor DD1. Structurally, the ICC module consists of the MPU_CPU module, the MPU_SIGN module, located one above the other and having a common front panel. The MUSC module is installed in the MPU panel and connected to the main connection board using the X2 connector.

The discrete input / output module (DVMV) serves as the input / output interface of the transmitted and received commands (Rx and Rx commands) for the control and signaling module (MCS). MDVV is designed to receive and transmit transmitted and received command signals and provide communication between the ICC module and external protection equipment. Upon receipt of the command from the external device, the command is sent to pin 1 and 2 of the Q1 connector (type MDSTB2.5 / 4-GF-5.08 from Phoenix Contact). Further, through a mechanical key SW25 (type A0152 from AREM), which is located on the front panel of the MDVV module, the PRD command is sent to the digital input circuit. Key SW25 allows you to block the reception of the PRD command. The discrete input is a comparator circuit assembled on a D28 chip (LM2901D). The input signal is fed to the input of the comparator, which is compared with the reference voltage. The jumper J1 is provided in the circuit, with which the input command voltage range is selected (220 V, 110 V or 48 V). From the output of the digital input of the PRD, the command through the optocouplers D1 and D2 (type SFH6156-3T) is fed to the input of the microcontroller D10 (At89C51ED2 from Atmel). The microcontroller gives a signal for the operation of the bistable relay K6 (type V23079B1203B301 from TE Connectivity), which at one time causes the AL5 LED to light up (type L-1533BQ / 1GD from Kingbright). The AL5 LED is located on the front panel of the DVMV module and displays the presence of the transmit command received at the input of the DVMV module. LED AL5 will remain on until the operator instructs to turn it off by pressing the ″ Reset ″ SW11 button (APEM type TP33W008000). The SW11 button is located on the front panel of the DVA module. Also, the D10 microcontroller, through the SPI data bus, transmits information about the received DDR command to the central microcontroller in the ICC module. Upon receipt of the appropriate command via the SPI bus from the ICC module, the D10 microcontroller provides a signal to the solid-state relay D4 (type AQY216EHA), while the relay D4 is triggered, which leads to the issuing of a command signal to the external device (pins 1 and 2 of the Q2 connector (type MDSTB2. 5/4-GF-5.08 from Phoenix Contact)).

Upon receipt of the PFP command from an external device, the command is sent to pin 3 and 4 of the Q2 connector (type MDSTB2.5 / 4-GF-5.08 from Phoenix Contact). Then, through a mechanical key SW24 (type A0152 from AREM), which is located on the front panel of the MDVV module, the PFP command is sent to the digital input circuit. The SW24 key allows you to block the reception of PFP commands. The digital input is a comparator circuit assembled on a D29 chip (LM2901D). The input signal is fed to the input of the comparator, which is compared with the reference voltage. The circuit provides a J3 jumper, with which the input command voltage range is selected (220 V, 1100 V or 48 V). From the output of the discrete input of the PFP, the command through the optocouplers D7 and D8 (type SFH6156-3T) is fed to the input of the microcontroller D10 (At89C51ED2 from Atmel). The microcontroller gives a signal for the operation of the bistable relay K5 (type V23079B1203B301 from TE Connectivity), which at one time causes the AL6 LED to light up (type L-1533BQ / 1GD from Kingbright). LED AL6 is located on the front panel of the DVA module and displays the presence of the PfP command received at the input of the DVA module. LED AL6 will remain on until the operator instructs it to turn off by pressing the ″ Reset ″ SW11 button (APEM type TP33W008000). Also, the microcontroller D10 through the data bus SPI transmits information about the received PFP command to the central microcontroller in the ICC module. Upon receipt of the appropriate command via the SPI bus from the ICC module, the D10 microcontroller provides a signal simultaneously to four electromechanical relays K1 ... K4 (type REL-MR-12DC / 21 from Phoenix Contact). From the output of relay K1, the signal enters the mechanical key SW23 (type A0152 from AREM), and from the output of the relay K2 the signal goes to key SW22 (type A0152 from AREM). The keys SW22 and SW23 are located on the front panel of the DVA module and allow you to block the issuance of PfP commands to an external device. The D10 microcontroller stores the settings for a specific DVMV module (delays on the operation of the digital input, anti-bounce time, logic of the digital inputs, etc.).

On the front panel of the DVA module there is also a ″ Test ″ button SW10 (type AP33 firm TP33W008000), when pressed, the D10 microcontroller provides signals for short-term light-up of the AL5 and AL6 LEDs.

On the front panel of the DVA module there is also a LED ″ Alarm ″ AL1 (type L-1533BQ / 1ID from Kingbright). This LED is controlled by the microcontroller D10. The ″ Alarm ″ LED lights up in the case of an incorrectly received command or in the absence of communication via the SPI bus with the central microcontroller.

The power module is designed to convert an input constant or alternating voltage of 220 V to a voltage of 12 V, which is necessary to power the MPU panel. The conversion is carried out using two DC / DC converters (type KAMN3012), connected in parallel. At the output of the DC / DC converters there is a capacitor block consisting of ten capacitors (type ENP473M16V from Hitano). The capacitor unit allows you to maintain the full functionality of the MPU panel in the event of input voltage dips of up to 500 ms. The 12 V supply voltage from the power module board through the X5 connector (type 650936-5 from TE-Connectivity) is supplied to the main connection board (OSB). Also, operating voltage Uopt1 and Uopt2 are supplied to the power module board, which are supplied to the main connection board (OSB) through the X5 connector (type 650936-5 from TE-Connectivity). Via the X8 connector (type MSTB2.5HC / 4-GF-5.08 from Phoenix Contact), the auxiliary current voltages are transferred to the additional connection board (SPD). OSB is designed to organize the exchange bus between the ICC module and the installed MDVV modules with numbers from 1 to 12. By means of the main backplane, power is supplied to the MDVV modules and the MCC module through its internal bus. In addition, an auxiliary current voltage is supplied to the MDVV modules. The MDVV modules and the MCM module are connected to the OSB board using connectors X1 ... X13 (type 5650459-5 from TE Connectivity). SPD is designed to organize the exchange bus between the ICC module and the installed DVMV modules with numbers from 13 to 24. By means of the main backplane, power and operating current voltage are supplied to the MDVV modules through its internal bus. DVMV modules are connected to the SPD board using connectors X1 ... X12 (type 5650459-5 from TE Connectivity). The connection of the installed DVMV modules with the ICC module is carried out through the X13 connector (type 5499913-6 from TE Connectivity).

Thus, the MPU functionality is sufficient to ensure continuous uninterrupted operation and timely signaling of controlled events.

Claims (4)

1. Microprocessor control panel for monitoring and control of relay protection (RE) and emergency control (PA) signals, which receives signals from RE and PA commands from RE and PA devices and issues these commands to transmission devices, receives signals from RE and PA commands from devices the transmission and issuance of these commands to the actuators, as well as pairing the connected equipment according to time characteristics to optimize the operating modes of the general command transmission system, characterized in that
- provides digital signal processing,
- contains a control and signaling module (MCM) having a microprocessor, functional subsystems of signaling, registration, command processing, synchronization, communication, diagnostics, while all functional elements are made on one board,
- provides signal processing for alarm and alarm commands and the relay module block, as well as the functionality of external clock synchronization, remote reset of alarms and alarms, alarm outputs, information security with an access password task,
- contains a block of relay modules of discrete inputs / outputs (MDVV), consisting of separate modules that perform functionally completed operations, with the function of eliminating false commands,
- contains the main connecting board (OSB) for organizing the exchange of data between the ICC and the relay modules MDVV,
- contains a power module (MP) that provides the functionality of the operational voltage filter module, the power protection module against voltage dips, the power supply module. 2. The microprocessor control panel according to claim 1, characterized in that the alarm subsystem functionally provides: a visual display of the passage of at least one receive command (PFP), a visual display of the passage of at least one transmit command (PFP), a visual display of the physical state of the alarm outputs and accidents, resetting the indication and physical state (transition to the primary (normal) state) of alarm outputs, alarms and confirmations, the formation and fixing of the physical state of alarm outputs, Varia and confirmations, switching of external and 2
internal signals to alarm outputs, switching internal signals to alarm outputs;
registration subsystem provides logging of events occurring in the device;
command processing subsystem provides processing of PFP and PPR commands;
The synchronization subsystem provides: reception and processing of accurate time signals from an external synchronization source; accurate time signal transmission to all parts of the panel and other external devices;
Communication subsystem provides: MPU configuration; MPU monitoring; access control to MPU;
Diagnostic subsystem provides detection of malfunctions of device components. 3. The microprocessor control panel according to claim 1, characterized in that the ICC contains an event logger module, such as the start and end of a session, emergency situations, entering and changing an access password, including entering an incorrect password. 4. The microprocessor control panel according to claim 1, characterized in that the ICC contains built-in command counters for each transmitted / received command and alarm and alarm commands, and each command could be programmed with its own parameters and operating mode.

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