CN1924746A

CN1924746A - Data sampling monitoring control device and method for micro combustion steam turbine

Info

Publication number: CN1924746A
Application number: CNA2006100478894A
Authority: CN
Inventors: 张化光; 李爱平; 闫士杰; 边春元; 陈宏志; 刘秀翀
Original assignee: Northeastern University China
Current assignee: Northeastern University China
Priority date: 2006-09-26
Filing date: 2006-09-26
Publication date: 2007-03-07

Abstract

This invention relates to micro gas machine data collection monitor and control device and method, which comprises communication connection unit and upper machine, wherein, the connection unit is connected to the upper machine through CAN bus and gas control system; upper machine gas system control is to send order to memory data through communication and through CAN bus to each unit of the gas control system; the upper machine sends order and memory data to the communication module and function module.

Description

The data sampling monitoring control device of micro combustion steam turbine and method

Technical field:

The invention belongs to areas of information technology, particularly a kind of micro combustion steam turbine data sampling monitoring control device and method.

Background technology:

The development trend of micro combustion steam turbine is high parameter, high capacity, high rotating speed and operational system complexity.Thereby the level of micro combustion steam turbine operation has proposed strict more requirement, only relies on operations staff's experience and manual operation can not meet the demands.Therefore, objectively requiring have one to overlap the supervisory system that accurately and promptly to react to the gas turbine running status.

SCADA (Supervisory Control And Data Acquisition) system, i.e. data acquisition and supervisor control.The application of SCADA program product is very wide, and it can be applied to the data acquisition and numerous areas such as supervision control and process control in fields such as electric system, water supply system, oil, chemical industry.On electric system and electric railway, claim telecontrol system again.This system also is not applied to the micro combustion steam turbine field at present.

Summary of the invention:

At problems of the prior art, the invention provides a kind of data sampling monitoring control device and method of micro combustion steam turbine.

Apparatus of the present invention comprise communication linkage unit and host computer two parts, and as shown in Figure 1, the communication linkage unit is connected with host computer, and the communication linkage unit links to each other with each unit of turbine control system by the CAN bus.

The principle of work of apparatus of the present invention is as follows: the data of each unit of turbine control system pass to the communication linkage unit respectively by the CAN bus, the communication linkage unit passes to host computer through the RS232 change-over circuit again, realize the function of data monitoring or fault alarm, the operation of PC control combustion machine system, its control procedure is that host computer sends command frame and storage data, its transmission path is opposite with above-mentioned process, at first pass to the communication linkage unit by the RS232 change-over circuit, pass to each unit of turbine control system more respectively through the CAN bus, to realize the effect of control.Wherein the communications protocol between communication linkage unit and the host computer is by User Defined.

The communication linkage unit comprises controller, level shifting circuit, RS232 change-over circuit, CAN bus transceiver, program storage and data-carrier store, the SCI interface of its middle controller links to each other with RS232 change-over circuit, CAN bus transceiver respectively with the CAN bus interface, address interface links to each other with data-carrier store, program storage through level shifting circuit with data port, as shown in Figure 2.

The communication linkage unit is the hinge sections that system and user carry out message exchange, also is the center of total system information, has following function:

Self-checking function: the detection hardware fault, whether checking hardware can normally use;

Presentation Function: call the display driving function, will data presented on display, show;

Keypress function: call corresponding menu handling procedure;

The CAN sending function: other unit by a First Input First Output and turbine control system comes communicate information, and the data that send to other unit of turbine control system can be delivered to this formation;

The CAN receiving function: other unit of receiving management turbine control system sends to CAN by CAN and receives data and order in the formation;

The SCI sending function: by a First Input First Output and host computer communicate information, the data that send to host computer can be delivered to this formation;

The SCI receiving function: the receiving management host computer sends to SCI by serial ports and receives data and order in the formation;

The calendar clock function: device reads hardware clock as benchmark when starting, and during the device operation, utilizes software to safeguard a software clock, can guarantee the continuity of clock like this, the real-time the when system that can take into account again carries out.

Host computer links to each other with the communication linkage unit by the RS232 serial ports in apparatus of the present invention, and it comprises database function module, serial communication module and human-computer interaction interface module.The human-computer interaction interface module realizes the function of data monitoring and control in the host computer by serial communication module and database function module, man-machine interface obtains to fire the data that the machine control module transmits from each from serial ports, or to each combustion machine control module transmission data, the data that need to preserve deposit in the database, and graph of a relation as shown in Figure 3.Introduce each functions of modules below in detail:

(1) database function module

The database function module will be preserved the relevant parameter of various combustion machines, and the present invention is divided into one-level, secondary and three grades of parameters with all combustion machine parameters.The tables of data of setting up has historical data table, real time data table, failure message, one-level, secondary, three grades of parameters, user message table.

(2) serial communication module

The serial communication module realizes parameter modification, warning message and functions such as fault is checked, operation, and its communications protocol is by User Defined.

(3) human-computer interaction interface module

Human-computer interaction interface comprises login interface, main interface, configuration figure interface, historical data interface, 5-minute data interface, subscriber administration interface, warning interface, runnable interface and parameter modification interface, wherein runnable interface comprises debugging interface, unit, local debugging interface and automatic runnable interface, and historical data interface and 5-minute data interface comprise data interface and print the interface.

Wherein be divided into one-level parameter modification interface, secondary parameters modification interface and three grades of parameter modification interfaces in the parameter modification interface, wherein one-level parameter modification interface is that the designer uses; Secondary parameters is revised the interface and is used for the maintainer; Three grades of parameter modification interfaces are that operating personnel use.When not needing parameter current made amendment, can use default parameters.

Runnable interface comprises debugging interface, unit, local debugging interface and automatic runnable interface.Debugging interface, unit comprises switching value passage experiment interface and analog quantity channel experiment interface.Local debugging interface is the situation to 12 output switching values, and the information of gas turbine supplemental characteristic debugs, and operation comprises " startup ", " reduction of speed ", " manual shut-down ".Automatically runnable interface is to operate in main interface dialog box.

Configuration figure interface is used for showing the annexation of apparatus of the present invention and turbine control system.

Control method of the present invention is to send command frame and storage data by host computer, and through the communication of communication linkage unit, each unit that passes to turbine control system respectively through the CAN bus is realized controlling again.Host computer sends command frame and the storage data are realized by database function module and serial communication module.

Wherein the communication process of communication linkage unit is as follows, as shown in Figure 4:

Step 1, beginning;

Step 2, CPU initialization;

Step 3, SCI initialization;

Step 4, CAN initialization;

Step 5, judge whether the external RAM self check is normal, is to enter step 6, otherwise return step 5;

Can step 6, detection communicate by letter with host computer, are to enter step 7, otherwise enter step 3;

Step 7, judge whether other cell board self check is normal, is, enters step 9, otherwise enter step 8;

Step 8, notice host computer self check are undesired, return step 7;

Step 9, transfer system self check normal command;

Step 10, judge whether host computer transmits information, is, enters step 10, otherwise return step 9;

Step 11, transmission startup command;

Step 12, real-time Communication for Power;

Step 13, end.

The function call process of database function module is as follows, shown in Fig. 5 (a):

Step 1, beginning;

Step 2, main interface be function regularly;

Step 3, judging whether it is time-event 1, is to enter step 4, otherwise enter step 5;

Step 4, each second deposit data, directly enter step 2;

Step 5, judging whether it is time-event 2, is to enter step 6, otherwise enter step 7;

Step 6, each minute deposit data, directly enter step 2;

Step 7, judging whether it is time-event 3, is to enter step 8, otherwise enter step 9;

Step 8, alarm indication directly enter step 2;

Step 9, judging whether it is time-event 4, is to enter step 10, otherwise enter step 11;

Step

10,4,5 demonstrations of cancellation timer directly enter step 2;

Step 11, time-event 5;

Step 12, whether judge the record number＞1000, be to enter step 13, otherwise enter step 14;

Step 2 is returned in step 13, reminder-data backup;

Step 14, deposit database in;

Step 15, end.

Wherein each second deposit data and each minute the deposit data process in full accord, shown in Fig. 5 (b), may further comprise the steps:

Step 1 beginning;

Step 2 is got system time;

Step 3 record number;

Whether step 4 judge the record number＞300, and be to enter step 5, otherwise enter step 6;

Step 5 deposits data file in text;

Step 6 deposits parameter in database;

Step 7 is returned.

The invoked procedure of serial communication module is as follows, as shown in Figure 6:

Step 1, beginning;

Step 2, serial communication function;

Step 3, judge whether character is arranged, be in the send buffer, enter step 4, otherwise enter step 2 18;

The edit box of video data in step 4, the main interface of renewal;

Whether step 5, judgment frame zone bit are 0, are, enter step 6, otherwise enter step 10 six;

Step 6, whether judge the buffer zone string length＜6, be to enter step 2 19, otherwise enter step 7;

Step 7, judge whether first element is AA in the buffer memory, is, enters step 8, otherwise enter step 2 19;

Whether next element is AA in step 8, the buffer memory, is, enters step 9, otherwise enters step 2 19;

Step 9, judging whether it is Frame, is to enter step 10, otherwise enter step 11;

Step 10, determine that frame length, type, flag of frame position are 1, directly enter step 10 six;

Step 11, judging whether it is command frame, is to enter step 12, otherwise enter step 13;

Step 12, determine that frame length, type, zone bit are 1, directly enter step 10 six;

Step 13, judging whether it is the fault frame, is to enter step 14, otherwise enter step 15;

Step 14, determine that frame length, type, zone bit are 1, directly enter step 10 six;

Step 15, flag of frame position (Flag) are 0;

Step 10 six, judge that the buffer zone string length whether less than frame length, is, enter step 2 19, otherwise enter step 10 seven;

Step 10 seven, read a frame, be saved in the data set among the rxdata from buffer zone;

Step 10 eight, judging whether it is Frame, is to enter step 10 nine, otherwise enter step 2 11;

Step 10 nine, determine where organize data type;

Step 2 ten, respective handling directly enter step 2 18;

Step 2 11, judging whether it is command frame, is to enter step 2 12, otherwise enter step 2 13;

Step 2 12, determine the control types of command frame;

Step 2 13, respective handling directly enter step 2 18;

Step 2 14, judging whether it is the fault frame, is to enter step 2 15, otherwise enter step 2 18;

Step 2 15, determine where organize fault;

Step 2 16, respective handling;

Step 2 17, failure message prompting;

The edit box of video data in step 2 18, the main interface of renewal;

Step 2 19, end.

The present invention gathers and monitors that control has real-time; Have excellent user interface, system is stable simple to operate understandable, and the user grasps easily; The software design modularization has good maintainability, can expand and modification software according to user's needs.

Description of drawings:

Fig. 1 is apparatus of the present invention structural representation;

Fig. 2 is a communication linkage unit schematic block circuit diagram in apparatus of the present invention;

Fig. 3 is communication linkage unit communication flow figure in apparatus of the present invention;

Fig. 4 is a upper computer module graph of a relation in apparatus of the present invention;

Fig. 5 is a host computer database function module process flow diagram in apparatus of the present invention;

Fig. 6 is a host computer serial communication module process flow diagram in apparatus of the present invention;

Fig. 7 is communication linkage unit circuit theory diagrams in the preferred embodiment of the present invention,

(a) be power circuit principle figure in this example,

(b) be this example middle controller TMS320LF2407A and peripheral circuit schematic diagram thereof,

(c) be RS232 communication interface in this example,

(d) be CAN bus interface in this example,

(e) be RS232 conversion and CAN bus driving circuits schematic diagram in this example,

(f) be memory circuitry schematic diagram in this example;

Fig. 8 is a paral tables of data in this instance database;

Fig. 9 is provided with surface chart for serial communication parameter in this example;

Figure 10 is login interface figure in this example;

Figure 11 is a main surface chart in this example;

Figure 12 is a historical data surface chart in this example;

Figure 13 is a 5-minute data surface chart in this example;

Figure 14 prints surface chart in this example;

Figure 15 is a Print Preview surface chart in this example;

Figure 16 is a data and curves surface chart in this example;

Figure 17 is subscriber administration interface figure in this example;

Figure 18 is the surface chart of reporting to the police in this example;

Figure 19 is a failure message surface chart in this example;

Figure 20 checks the fault data surface chart in this example;

Figure 21 is that operational mode is selected surface chart in this example;

Figure 22 is a debugging surface chart in unit in this example;

Figure 23 is a local debugging surface chart in this example;

Figure 24 is that systematic parameter is revised surface chart in this example.

Among the figure 1---host computer, 2---the communication linkage unit, 3---each unit of turbine control system, 4---controller, 5---the CAN bus interface, 6---the CAN bus transceiver, 7---the RS232 change-over circuit, 8---the SCI interface, 9---address mouth, 10---data port, 11---level shifting circuit, 12---data-carrier store, 13---program storage, 14---the human-computer interaction interface module, 15---the serial communication module, 16---the database function module, 17---level shifting circuit, 18---the RS232 change-over circuit, 19---the CAN bus driving circuits.

Embodiment:

A preferred embodiment of the present invention such as Fig. 7～shown in Figure 24.

The controller of communication linkage unit is selected TMS320LF2407A for use in this example, uses the C language compilation.Fig. 7 is communication linkage unit circuit theory diagrams in this example, and Fig. 7 (a) is a power circuit diagram, and power supply selects for use the LM3940 voltage stabilizer to become the 3.3V power supply to power to controller the 5V power source conversion.Fig. 7 (b) is controller TMS320LF2407A and peripheral circuit schematic diagram thereof, 25,70,26,72 pins of TMS320LF2407A link to each other with 5,6 pins, 5,6 pins of IC19 of IC21 among Fig. 7 (e) respectively, 2,3,5,6,17,19 pins of IC4 link to each other with 4,5,6,7,2,3 pins of IC20 among Fig. 7 (f) respectively, 8 pins of IC4 link to each other with 18 pins of 18 pins of IC5 and IC6,20 pins of IC4 link to each other with 41 pins of 41 pins of IC5 and IC6, and 22 pins of IC4 link to each other with 17 pins of 17 pins of IC5 and IC6.Fig. 7 (c) is RS232 communication interface J2 in this example, and 2,3 pins of J2 link to each other with 14,13 pins of IC12 among Fig. 7 (e) respectively.Fig. 7 (d) is CAN bus interface J1 in this example, and 4,5 pins of J1 link to each other with 7,6 pins of IC11 among Fig. 7 (e) respectively.

To select Visual C++6.0 for use be application development system to host computer in this example, bottom is selected SQL SERVER2000 Database Systems for use, the storage of data needs the information of dump to preserve with Excel or Text file for some, operating system adopts WINDOWSXP, also used curvilinear figure in this operating system and described the situation of each parameter, it is simpler and easy directly perceived that the user is operated.Host computer comprises database function module, serial communication module and human-computer interaction interface module.

Control method of the present invention is to send command frame and storage data by host computer, through the communication of communication linkage unit, passes to respectively through the CAN bus that each unit of turbine control system realizes again.Host computer sends command frame and the storage data are realized by database function module and serial communication module.

The communication process of communication linkage unit may further comprise the steps as shown in Figure 4 in this example:

Step 1, beginning;

Step 2, CPU initialization;

Step 3, SCI initialization;

Step 4, CAN initialization;

Step 8, notice host computer self check are undesired, return step 7;

Step 9, transfer system self check normal command;

Step 11, transmission startup command;

Step 12, real-time Communication for Power;

Step 13, end.

The database function module is preserved the relevant parameter of various combustion machines in this example, and its function call process may further comprise the steps shown in Fig. 5 (a):

Step 1, beginning;

Step 2, main interface be function regularly;

Step 4, each second deposit data, directly enter step 2;

Step 6, each minute deposit data, directly enter step 2;

Step 8, alarm indication directly enter step 2;

Step

10,4,5 demonstrations of cancellation timer directly enter step 2;

Step 11, time-event 5;

Step 2 is returned in step 13, reminder-data backup;

Step 14, deposit database in;

Step 15, end.

Step 1. beginning;

Step 2. is got system time;

Step 3. record number;

Whether step 4. judge the record number＞300, and be to enter step 5, otherwise enter step 6;

Step 5. deposits data file in text;

Step 6. deposits parameter in database;

Step 7. is returned.

Each field and the implication thereof of database table are described as follows in the database function module of this example:

RealTimeData: real time data table; HistoryData: historical data table;

Time: time; C_TurbineSpeed: combustion machine rotating speed; InTem: regenerator fuel gas inlet temperature; PumpedTem: temperature behind the petrolift; C_PreAxlOutAirTem: preceding air bearing outlet temperature; C_PostAxlOutAirTem: back air bearing outlet temperature; C_PostAxlInAirTem: back air bearing inlet temperature; C_GGHorQuiver: unit horizontal vibration; C_GGVerQuiver: unit vertical vibration; C_GCoolOilTem: generator cools back oil temperature; C_IGBTCoolOilTem:IGBT cold oil returning-oil temperature; C_GWindingTem: generator windings temperature; C_GRTem: cabin temperature; E_TurbineSpeed: combustion machine rotating speed; E_RHeaterG:InTem: regenerator fuel gas inlet temperature; E_ComAirOutPress: blower outlet air pressure; E_ComAirInTem: pneumatic plant temperature of inlet air; AE_RHeaterAirInTem: backheat temperature of inlet air; AE_RHeaterAirOutTem: backheat air exit temp; AE_RHeaterG:OutTem: backheat gas outlet temperature; AE_G:PumpedPress: pressure behind the petrolift; PrePumpPress: pressure before the main jet; AE_InflowTem: inflow temperature; AE_OutflowTem: leaving water temperature; AE_InflowPress: intake pressure; AE_OutflowPress: discharge pressure; AE_InflowFlux: water flow; M_GGOutAV: output U line voltage; M_GGOutBV: output V line voltage; M_GGOutCV: output W line voltage; M_GGOutAI: output U phase current; M_GGOutBI: output V phase current; M_GGOutCI: output W phase current; M_GGOutAlterFre: output AC frequency; M_GGOutAlterPower: output AC power; S_GOutAV: generator output A line voltage; S_GOutBV: generator output B line voltage; S_GOutCV: generator output C line voltage; S_GOutAI: generator output A phase current; S_GOutBI: generator output B phase current; S_GOutCI: generator output C phase current; S_GeneratrixV: DC bus-bar voltage; S_GOutAlterFre: generator output AC electricity frequency; B_BatterV: battery tension.

Para1: one-level parameter; Para2: secondary parameters; Para3: three grades of parameters.

Name: parameter name; Meaning: meaning of parameters; DefaultValue: parameter default; LastValue: the value of Xiu Gaiing at last; NewValue: new value; Decnum: decimal place.

TroubleData: failure message table.

TroubleID: fault ID number; TroubleName: fault title; Time: time.

Users: user message table.

Username: user name; PWD: password; User_type: user type.

The paral tables of data as shown in Figure 8 in this instance database.

The serial communication module realizes parameter modification, warning message and functions such as fault is checked, operation, and its invoked procedure may further comprise the steps as shown in Figure 6:

Step 1, beginning;

Step 2, serial communication function;

The edit box of video data in step 4, the main interface of renewal;

Step 15, flag of frame position (Flag) are 0;

Step 10 nine, determine where organize data type;

Step 2 ten, respective handling directly enter step 2 18;

Step 2 12, determine the control types of command frame;

Step 2 13, respective handling directly enter step 2 18;

Step 2 15, determine where organize fault;

Step 2 16, respective handling;

Step 2 17, failure message prompting;

The edit box of video data in step 2 18, the main interface of renewal;

Step 2 19, end.

Serial port communicating protocol form such as following table in this example, the scaling position of integer writes 0 and data little-endian transmission in this communications protocol.

Start of frame delimiter

The Frame mark

The communication linkage unit

First group mark

Data length (from this byte byte number backward)

Combustion machine speed revolution value, data transmission format as above

The front bearing returning-oil temperature

The CRC verification

Host computer and communication linkage unit carry out communication by serial ports, will carry out communication before the operation and connect setting, select COM port or COM device or COM1 in this example for use, 8 bit data positions, and 1 position of rest, no parity, baud rate 19200b/s, as shown in Figure 9.

Serial ports: computing machine can have 1～2 serial ports usually, is called COM1, COM2, and the attention upper and lower computer will be selected same serial ports; Here COM1, COM2, COM3, COM4. have been disposed

Baud rate: the figure place that the per second kind transmits, scope is from 300bps～115200bps.

Check bit: check bit is for whether the data of verifying transmission are correctly received, and following five options are arranged:

N--no parity check position can be without check bit in the transmission course.

The O--odd.If the employing odd adds one in addition as check bit when transmitting each frame.When the number of " 1 " in the real data was even number, this check bit was exactly " 1 ", otherwise this check bit is exactly " 0 ", so just can guarantee that the data that transmit satisfy the requirement of odd.When the take over party receives data, will detect the number of " 1 " in the data according to the requirement of odd, if be odd number, expression transmits correct, on the contrary expression transmits mistake.

The E--even parity check.The process of even parity check is the same with odd, and the number that only detects " 1 " in the data is an even number.

M--is always 1.Check bit is always 1, if variation has taken place check bit in the process of transmission, this just points out and certain class mistake occurred.

S--is always 0.Check bit is always 0, if variation has taken place check bit in the process of transmission, this just points out and certain class mistake occurred.

Data bit: the data bits that each transmission can be set.Data bit allows the character length of transmission to be 5,6,7 or 8 according to serial communication protocol.Usually data bit is 7 or 8.

Position of rest: select the figure place of position of rest, have 1,1.5,2.Position of rest is logical one, always at the end of each frame, can be 1,1.5 or 2.The most frequently used is 1, and the position of rest that surpasses 1 appears at such occasion usually: receiving equipment requires additional period before handling the next character that is about to send.

The human-computer interaction interface module of host computer shows login interface, main interface, configuration figure interface, historical data interface, 5-minute data interface, subscriber administration interface, warning interface, runnable interface and parameter modification interface in this example, wherein runnable interface comprises debugging interface, unit, local debugging interface and automatic runnable interface, and historical data interface and 5-minute data interface comprise data interface and print the interface.

Figure 10 shows that log-in interface figure in this example, for the purpose of safe and secret, login this system and need carry out authentication, the user is divided into three ranks, has different authorities respectively, for example: user name: 302, password: 302 (one-level users), user name: mend, password: mend (secondary user), user name: operator, password: pwd (three grades of users).

The Windows style is adopted at the main interface of this example, provides complete Chinese operation interface, as shown in figure 11.Other interface has supports to show user-defined various pictures such as curve, working condition chart that the form of expression is versatile and flexible.

Click " historical data " on the main interface menu bar, eject the historical data forms, as shown in figure 12.

Click " 5-minute data " on the main interface menu bar, eject the 5-minute data forms, as shown in figure 13, can spur level and vertical scroll bar, see all data; By " self-defined searching " key, the user can select different fields and time period to carry out checking of data as required.

In historical data interface and 5-minute data interface, press the printing reports key, eject and print the interface, as shown in figure 14.Figure 15 is the Print Preview interface.

By the data and curves key, can show the trend map of real time data in historical data interface and 5-minute data interface, its interface as shown in figure 16.In the tabulation in left side, this interface, be divided into six groups: 1. central control unit; 2. fire the machine control module; 3. auxilliary combustion-supporting machine control module; 4. main inversion control unit; 5. soft start control module; 6. battery control unit.

Subscriber administration interface as shown in figure 17.

Figure 18 shows that the alarm indication interface.Figure 19 shows that the failure message interface, can store alarms information, and can inquire about the fault data in 10 seconds when occurring of reporting to the police, and depositing its complete information in database, the user can check that the fault data function can show historical failure information such as fault title, time of failure.Each data message when the user wants to check that fault takes place can be selected a information in the failure message table earlier as data such as preceding air bearing outlet temperatures, clicks then and checks the fault data button, enters the specifying information of fault when taking place, as shown in figure 20.

Figure 21 is a runnable interface, enters the runnable interface branch by clicking main interface " RUN " button, and this interface is divided into " unit debugging " " local debugging " " operation automatically " three parts.

Figure 22 is unit debugging surface chart.Switching value passage experiment interface divides 12 groups the unit is set in the debugging interface, unit: the solenoid valve of 1, setting fire (CCU); 2, antiaircraft valve solenoid (CCU); 3, stop valve 5 solenoids (CCU); 4, ignition coil (ECU); 5, cooling petrolift (small contactor 2) (MCU); 6, stop valve solenoid (CCU); 7, stop valve 4 solenoids (CCU); 8, air bleed valve solenoid (ECU); 9, tributary copped wave reactor short circuit (small contactor 1) (CCU); 10, client's power switch (big contactor) (MCU); 11, No. 1 valve opening signal of regenerator (AECU); 12, No. 2 valve opening signals of regenerator (AECU).Wherein preceding ten groups by click " opening ", " pass " button is provided with each switching value; 11 and 12 is regenerator valve 1 and 2 aperture signals to be provided with aperture from 0 to 100%.Analog quantity channel is tested: test at analog quantity channel and have 8 in one group: a, the experiment of pt100 temperature sensor; B, thermocouple temperature sensor experiment; C, pressure transducer experiment; D, the experiment of vertical vibration horizontal vibrating; E, each electrical quantity sensor passage experiment; F, variable valve Control current output experiment (host computer passes down); G, variable valve Control current output experiment (slave computer is uploaded); H, rotating speed experiment; Need to select the content of debugging, enter corresponding debugging interface, several different physical quantity options are arranged respectively again in each interface.

Figure 23 is local debugging interface, local debugging is the situation to 10 output switching values, and busbar voltage, soft start alternating voltage, U line current, V line current, regenerator gas outlet temperature, U phase inverter voltage, V phase inverter voltage, combustion machine rotating speed, T4*, preceding air bearing outlet air temperature, back air bearing outlet air temperature, back air bearing inlet air temperature W phase inverter voltage and cell voltage are debugged.Operation comprises: " startup ", " reduction of speed ", " manual shut-down ".

Figure 24 is that systematic parameter revises the interface, and parameter modification provides interface to each parameter modification of combustion machine to the user, it be and communication linkage unit and database between interface, require parameter is divided into Three Estate one-level, secondary, three grades according to reality.Wherein the one-level parameter is used for the designer, and secondary parameters is that the maintainer uses, and three grades of parameters are that operating personnel use.

Claims

1, a kind of micro combustion steam turbine data sampling monitoring control device, comprise communication linkage unit and host computer two parts, the data that it is characterized in that each unit of turbine control system pass to the communication linkage unit respectively by the CAN bus, the communication linkage unit passes to host computer through the RS232 change-over circuit again, the communication linkage unit comprises controller, level shifting circuit, the RS232 change-over circuit, the CAN bus transceiver, program storage and data-carrier store, the SCI interface of its middle controller and CAN bus interface respectively with the RS232 change-over circuit, the CAN bus transceiver links to each other, and address interface and data port are through level shifting circuit and data-carrier store, program storage links to each other.

2, the control method of a kind of micro combustion steam turbine data sampling monitoring control device as claimed in claim 1, be to send command frame and storage data by host computer, through the communication of communication linkage unit, pass to respectively through the CAN bus again that each unit of turbine control system realizes, it is characterized in that described communication linkage unit communication process may further comprise the steps:

Step 1, beginning;

Step 2, CPU initialization;

Step 3, SCI initialization;

Step 4, CAN initialization;

Step 8, notice host computer self check are undesired, return step 7;

Step 9, transfer system self check normal command;

Step 11, transmission startup command;

Step 12, real-time Communication for Power;

Step 13, end;

Described host computer sends command frame and the storage data are realized by database function module and serial communication module.

3, the control method of a kind of micro combustion steam turbine data sampling monitoring control device according to claim 2 is characterized in that described database function module, and its invoked procedure may further comprise the steps:

Step 1, beginning;

Step 2, main interface be function regularly;

Step 4, each second deposit data, directly enter step 2;

Step 6, each minute deposit data, directly enter step 2;

Step 8, alarm indication directly enter step 2;

Step 10,4,5 demonstrations of cancellation timer directly enter step 2;

Step 11, time-event 5;

Step 2 is returned in step 13, reminder-data backup;

Step 14, deposit database in;

Step 15, end.

4, the control method of a kind of micro combustion steam turbine data sampling monitoring control device according to claim 3, it is characterized in that each second in the step 4 of described database function module invokes process deposit data and step 6 in each minute deposit data process in full accord, may further comprise the steps:

Step 1 beginning;

Step 2 is got system time;

Step 3 record number;

Step 5 deposits data file in text;

Step 6 deposits parameter in database;

Step 7 is returned.

5, the control method of a kind of micro combustion steam turbine data sampling monitoring control device according to claim 2 is characterized in that described serial communication module, and its invoked procedure may further comprise the steps:

Step 1, beginning;

Step 2, serial communication function;

The edit box of video data in step 4, the main interface of renewal;

Step 15, flag of frame position (Flag) are 0;

Step 10 nine, determine where organize data type;

Step 2 ten, respective handling directly enter step 2 18;

Step 2 12, determine the control types of command frame;

Step 2 13, respective handling directly enter step 2 18;

Step 2 15, determine where organize fault;

Step 2 16, respective handling;

Step 2 17, failure message prompting;

The edit box of video data in step 2 18, the main interface of renewal;

Step 2 19, end.