CN1835320A - Modularity dynamo integrated control protector - Google Patents
Modularity dynamo integrated control protector Download PDFInfo
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- CN1835320A CN1835320A CN 200610025154 CN200610025154A CN1835320A CN 1835320 A CN1835320 A CN 1835320A CN 200610025154 CN200610025154 CN 200610025154 CN 200610025154 A CN200610025154 A CN 200610025154A CN 1835320 A CN1835320 A CN 1835320A
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Abstract
The protector includes a module of main body composed of voltage signal input, current sensor, sensor of zero sequence current, input module Input + opto-isolator, signal amplification and process circuit, MPU, output module, memory unit, temperature measurement IC, real time clock IC, HMI liquid crystal + push button keys, communication (COM) interface, and power supply module. Through current sensor, sensor of zero sequence current, input module Input + opto-isolator, the inputted voltage signal is transferred to signal amplification and process circuit. Then signal is entered to MPU; and processed signal by the MPU is sent to output module or memory unit. Temperature measurement IC and real time clock IC sent data to MPU. Further transmissions are carried out. The protector integrates functions of detecting multiple parameters, protection and control, and possesses COM interface of field bus. Features are: small size, easy of connection and high reliability.
Description
Technical field
The present invention relates to modularity dynamo integrated control protector, relate in particular to multiple detected parameters, kinds of protect function, multiple motor operation control and the protector of the field bus communication interface function that matches, belong to the electric machines control technology field.
Background technology
Motor is a kind of general machine auxiliary products that use, and is special in some important complete set of equipments, and in order to ensure device security, prolong electronic stool useful life, manufacturer has developed the motor protector of kinds of protect function.
At present, domestic electric motor protecting is adopted thermal relay or Analogic Electronic Circuits protector more, above-mentioned protector defencive function is few; precision is low, and poor reliability lacks the field bus communication interface; can't carry out exchanges data, thereby also can't adapt to the requirement of network management.
Condition is cut, and most electronic type motor protectors adopt integral structure, and volume is big, and interchangeability is poor, is unsuitable for installing in the small size switch control cubicle.Motor protector only detects electric current mostly in addition, does not have the voltage detecting function, protects not comprehensive.
Summary of the invention
The protector of the field bus communication interface function that the object of the present invention is to provide and to make multiple parameter detecting, has kinds of protect function, multiple motor operation control and match.
In order to achieve the above object, technical scheme of the present invention is: this comprehensive protection device comprises that main body module, current detection module, long-range display control module and host computer monitor Control Software.Described supervision Control Software comprises main program, time interrupt routine, communicating interrupt program.
Described main body module comprises that voltage signal input, current sensor, zero sequence current sensor, input module Input+ light are every, signal amplification and treatment circuit, central microprocessor, output module output, memory cell EEPROM, temperature survey IC, real-time clock IC, HMI liquid crystal+button, communication interface Modbus/DeviceNet/Profibus/LonWorks; The power module power supply;
Signal transmission between the foregoing circuit: voltage signal input, current sensor, zero sequence current sensor, input module Input+ light every, enter the central microprocessor processing after being sent to signal amplification and treatment circuit, can arrive output module output after central microprocessor is handled or arrive memory cell EEPROM storage; Temperature survey IC, real-time clock IC deliver to central microprocessor with the data of measuring and handle; The data and HMI liquid crystal+button, the communication interface Modbus/DeviceNet/Profibus/LonWorks that handle through central microprocessor pass mutually.
Wherein detected parameters comprises: A phase current, B phase current, C phase current, average current, A phase voltage, B phase voltage, C phase voltage, average voltage, gross power, power, reactive power, power factor (PF), consumed power etc. are arranged.
Wherein defencive function comprises: overload protection, open phase protection, unbalance protection, residual current protecting, rotation-clogging protection, obstruction protection, underload protection, temperature (PTC) protection, under-voltage protection, overvoltage protection, underpower protection etc.
Wherein controlled function comprises: control, across-the-line starting control, double-speed motor control, reversible electric machine control, star delta starting control, auto-induction voltage-reduced starting control, the control of resistance reduced voltage starting etc. are controlled, are stopped to control, promptly stopping in starting.
Beneficial effect of the present invention: this is the modularity dynamo integrated control protector with multiple detection, control and defencive function; it integrates multiple parameter detecting, kinds of protect function, various control function; and has a field bus communication interface; volume is small and exquisite; easy-to-connect; the reliability height is a kind of dynamo integrated control protector that promotional value is arranged.
Description of drawings
Fig. 1 is a dynamo integrated control protector main body module theory diagram of the present invention;
Fig. 2 is a dynamo integrated control protector signal sample circuit modular circuit schematic diagram of the present invention;
Fig. 3 is a dynamo integrated control protector instrument transformer secondary current signal sample circuit modular circuit schematic diagram of the present invention;
Fig. 4 dynamo integrated control protector high breaking of the present invention relay output circuit modular circuit schematic diagram;
Fig. 5 is the active high-speed figure amount of a dynamo integrated control protector of the present invention input detecting circuit modular circuit schematic diagram;
Fig. 6 is a dynamo integrated control protector 4-20mA analogue quantity output circuit modular circuit schematic diagram of the present invention;
Fig. 7 is a dynamo integrated control protector thermilinear thermistor resistance testing circuit modular circuit schematic diagram of the present invention;
Fig. 8 is dynamo integrated control protector field bus communication interface module circuit theory diagrams of the present invention.
Fig. 9 (Fig. 9-1, Fig. 9-2, Fig. 9-3) is the main program flow chart of dynamo integrated control protector of the present invention;
Figure 10 is the time interrupt routine flow chart of dynamo integrated control protector of the present invention;
Figure 11 is the communicating interrupt program flow diagram of dynamo integrated control protector of the present invention.
Embodiment
Below in conjunction with drawings and Examples the present invention is elaborated.
This dynamo integrated control protector comprises that main body module, current detection module, long-range display control module and host computer monitor Control Software.
With reference to Fig. 1, this is a dynamo integrated control protector main body module principle frame of the present invention.
Described main body module comprise voltage signal input 1, current sensor 2, zero sequence current sensor 3, input module Input+ light every 4, signal amplifies and treatment circuit 5, central microprocessor 6, output module output7, memory cell EEPROM 8, temperature survey IC 9, real-time clock IC 10, HMI liquid crystal+button 11, communication interface Modbus/DeviceNet/Profibus/LonWorks12; Power module power supply 13;
Signal transmission between the foregoing circuit: voltage signal input 1, current sensor 2, zero sequence current sensor 3, input module Input+ light are every 4, enter central microprocessor (6) processing after being sent to signal amplification and treatment circuit 5, can arrive output module output7 after central microprocessor is handled or arrive memory cell EEPROM 8 storages; Temperature survey IC 9, real-time clock IC 10 deliver to central microprocessor 6 with the data of measuring and handle; The data and HMI liquid crystal+button 11, the communication interface Modbus/DeviceNet/Profibus/LonWorks12 that handle through central microprocessor pass mutually;
With reference to Fig. 2, this is a dynamo integrated control protector signal sample circuit modular circuit schematic diagram of the present invention.
Described signal sample circuit modular circuit, voltage are 380V, and the signal sample circuit module comprises signal sampling and reduction voltage circuit, operational amplifier signal follow circuit.
With reference to Fig. 3, this is a dynamo integrated control protector instrument transformer secondary current signal sample circuit modular circuit schematic diagram of the present invention.
Described transducer secondary current signal sample circuit modular circuit comprises accurate power resistor signal sample circuit, operational amplifier signal follow circuit.
With reference to Fig. 4, this is a dynamo integrated control protector high breaking relay output circuit module of the present invention.
Described high breaking relay output circuit module comprises control signal photoelectric isolating circuit, output amplifier, relay protection circuit.
With reference to Fig. 5, this is the active high-speed figure amount of a dynamo integrated control protector of the present invention input detecting circuit module.
Described active high-speed figure amount input detecting circuit module comprises active digital quantity circuit for checking input signals, digital input signals photoelectric isolating circuit, parallel data commentaries on classics serial data circuit.
With reference to Fig. 6, this is a dynamo integrated control protector 4-20mA analogue quantity output circuit module of the present invention, comprises master microprocessor PWM output isolation circuit, frequency-voltage conversion circuit, operational amplifier signal follow circuit and output constant-current source circuit.
With reference to Fig. 7, this is a dynamo integrated control protector thermilinear thermistor resistance testing circuit module of the present invention, comprises the thermistor voltage sample circuit, serial modulus conversion chip circuit, holding wire buffer circuit.
With reference to Fig. 8, this is a dynamo integrated control protector field bus communication interface module of the present invention, comprises holding wire buffer circuit, bus communication level shifting circuit and output protection circuit.
With reference to Fig. 9, this is the main program flow chart of dynamo integrated control protector of the present invention.
Described main program is stored in the central microprocessor 6, and this dynamo integrated control protector begins from power on, and main program just brings into operation, and its step is as follows: from＜set SFR〉14, enter＜EEPROM reads set point〉15,＜setup parameter; Drive timer 0〉16,＜turn=1? and FAULT=0? 17 judge, if not, then enter＜runback bit-identify=1﹠amp; FUALT=1? 51; If then enter＜turn=0〉18,＜sample rate current, magnitude of voltage are handled and are calculated effective value〉19,
＜I〉10Ie? 20 judge, if then enter＜COUT2++〉21,＜COUT2〉2? 22, if then enter＜send Reflector〉23; If not, then enter＜start sign=0? 24 judge, if not, then enter＜start sign=1? 36 judge; If then enter＜START=0? 25 judge, if not, then enter＜START=1? 29 judge; If then enter＜I〉Ie? 26 judge; Then enter if not,＜timer 0 interrupt service routine 54; If then enter＜delay time 0.15〉27,＜START=1〉28,＜START=1〉29 judge; If not, then enter＜start sign=1? 36; If then enter＜Q value judgement (cold conditions value)〉30,＜to 1/2 starting time? 31 judge; If not, then enter＜to the starting time? 34; If then enter＜I〉6Ie? 32 judge; If send Reflector (starting stall) after then entering＜judging for three times〉33; If not, then enter＜to the starting time? 34; If not, then enter＜start sign=1? 36; If then enter＜start sign=1〉35,＜starting sign=1? 36; Then enter if not,＜the I/O logical process 47;＜starting sign=1? 36; If then enter＜uneven the processing〉37,＜F〉set point? 38; If, then enter＜do time delays arrive? 39 judge; If then enter＜delay time judgement and send Reflector〉40; Does＜time delays arrive? 39, if not, then enter＜calculating of Q value 41,＜Q〉the heat upper limit (hot)? judge; If then enter＜send Reflector〉43; If not, then enter＜undercurrent judges〉44,＜earth current judges〉45,＜voltage judges〉46,＜the I/O logical process〉47,＜inquiry HMI〉48,＜Reflector be there? 49 judge; If not, then enter＜have the sign=I﹠amp that resets; FUALT=I1? 51 judge; If then enter＜cross delay time? 52,＜FAULT=0〉53.
With reference to Figure 10, this is the time interrupt routine flow chart of dynamo integrated control protector of the present invention.
Described time interrupt routine is stored in the central microprocessor 6, in main program＜setup parameter; Drive timer 0〉16 bring into operation, its step of time interrupt routine is as follows:
From＜timer 0 interrupt service routine〉54,＜reassembly timer 0〉55,＜three-phase current, voltage, the zero-sequence current A/D COUNT1++ that samples〉56,＜the quadratic sum of last time sampling is calculated〉57,＜sampled result deposits register〉58,＜be COUNT1 to specified number of times (one-period)? 59 judge; Then enter if not,＜time marking TT++ 61; If, then enter＜Turn=1 will add up and compose to variable〉60,＜time marking TT++〉61,＜Interrupt Process finishes〉62.
With reference to Figure 11, this is the communicating interrupt program flow diagram of dynamo integrated control protector of the present invention.
Described communicating interrupt program is stored in the central microprocessor 6, and when the external world had information to enter, this program just brought into operation.
Its process step is as follows: from＜communicating interrupt service routine〉63, enter＜message receives and interrupts〉64 judge; If then enter＜the communication received processing program〉65,＜the register setting〉67; Then enter if not,＜communication transmission handling procedure 66,＜the register setting〉67,＜communicating interrupt processing end〉68.
For operation principle and the function that more clearly demonstrates dynamo integrated control protector, making some tubes below will illustrate.
The dynamo integrated control protector main body module detects voltage and current detection module secondary current signal and handles and computing realization various control defencive function; current detection module detects motor three-phase current and zero sequence current signal and sends main body module to, and long-range display control module is by linking to each other with main body module and communication realization remote parameter demonstration and the output of control main body module.Host computer supervision Control Software realization network monitoring should be controlled the parameter of protector and implement controlled function.
Claims (10)
1, modularity dynamo integrated control protector, comprise a main body module, it is characterized in that: described main body module comprises that voltage signal input (1), current sensor (2), zero sequence current sensor (3), input module Input+ light are every (4), signal amplification and treatment circuit (5), central microprocessor (6), output module output (7), memory cell EEPROM (8), temperature survey IC (9), real-time clock IC (10), HMI liquid crystal+button (11), communication interface Modbus/DeviceNet/Profibus/LonWorks (12); Power module power supply (13);
Signal transmission between the foregoing circuit: voltage signal input (1), current sensor (2), zero sequence current sensor (3), input module Input+ light are every (4), enter central microprocessor (6) processing after being sent to signal amplification and treatment circuit (5), can arrive output module output (7) after central microprocessor is handled or arrive memory cell EEPROM (8) storage; Temperature survey IC (9), real-time clock IC (10) deliver to central microprocessor (6) with the data of measuring and handle; The data and HMI liquid crystal+button (11), the communication interface Modbus/DeviceNet/Profibus/LonWorks (12) that handle through central microprocessor pass mutually;
This protector also comprises the Control Software that is stored in the central microprocessor: main program, time interrupt routine and communicating interrupt program.
2, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described signal sample circuit comprises that voltage is 380V, and the signal sample circuit module comprises signal sampling and reduction voltage circuit, operational amplifier signal follow circuit.
3, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described transducer secondary current signal sample circuit comprises accurate power resistor signal sample circuit, operational amplifier signal follow circuit.
4, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described output module comprises control signal photoelectric isolating circuit, output amplifier, relay protection circuit.
5, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described input module comprises active digital quantity circuit for checking input signals, digital input signals photoelectric isolating circuit, parallel data commentaries on classics serial data circuit.
6, modularity dynamo integrated control protector as claimed in claim 1; it is characterized in that: described output module comprises master microprocessor PWM output isolation circuit, frequency-voltage conversion circuit, operational amplifier signal follow circuit and output constant-current source circuit.
7, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described thermilinear thermistor resistance testing circuit module comprises the thermistor voltage sample circuit, serial modulus conversion chip circuit, holding wire buffer circuit.
8, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described communication interface comprises holding wire buffer circuit, bus communication level shifting circuit and output protection circuit.
9, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described main program, its flow process comprise the steps: from＜set SFR 14, enter＜EEPROM reads set point 15,＜setup parameter; Drive timer 0〉16,＜turn=1? and FAULT=0? 17 judge, if not, then enter＜runback bit-identify=1﹠amp; FUALT=1? 51; If then enter＜turn=0〉18,＜sample rate current, magnitude of voltage are handled and are calculated effective value〉19,＜I〉10Ie? 20 judge, if then enter＜COUT2++〉21,＜COUT2〉2? 22, if then enter＜send Reflector〉23; If not, then enter＜start sign=0? 24 judge, if not, then enter＜start sign=1? 36 judge; If then enter＜START=0? 25 judge, if not, then enter＜START=1? 29 judge; If then enter＜I〉Ie? 26 judge; Then enter if not,＜timer 0 interrupt service routine 54; If then enter＜delay time 0.15〉27,＜START=1〉28,＜START=1〉29 judge; If not, then enter＜start sign=1? 36; If then enter＜Q value judgement (cold conditions value)〉30,＜to 1/2 starting time? 31 judge; If not, then enter＜to the starting time? 34; If then enter＜I〉6Ie? 32 judge; If send Reflector (starting stall) after then entering＜judging for three times〉33; If not, then enter＜to the starting time? 34; If not, then enter＜start sign=1? 36; If then enter＜start sign=1〉35,＜starting sign=1? 36; Then enter if not,＜the I/O logical process 47;＜starting sign=1? 36; If then enter＜uneven the processing〉37,＜F〉set point? 38; If, then enter＜do time delays arrive? 39 judge; If then enter＜delay time judgement and send Reflector〉40; Does＜time delays arrive? 39, if not, then enter＜calculating of Q value 41,＜Q〉the heat upper limit (hot)? judge; If then enter＜send Reflector〉43; If not, then enter＜undercurrent judges〉44,＜earth current judges〉45,＜voltage judges〉46,＜the I/O logical process〉47,＜inquiry HMI〉48,＜Reflector be there? 49 judge; If not, then enter＜have the sign=I﹠amp that resets; FUALT=I1? 51 judge; If then enter＜cross delay time? 52,＜FAULT=0〉53.
10, modularity dynamo integrated control protector as claimed in claim 1 is characterized in that: described time interrupt routine and communicating interrupt program, its flow process comprises the steps:
From＜timer 0 interrupt service routine〉54,＜reassembly timer 0〉55,＜three-phase current, voltage, the zero-sequence current A/D COUNT1++ that samples〉56,＜the quadratic sum of last time sampling is calculated〉57,＜sampled result deposits register〉58,＜be COUNT1 to specified number of times (one-period)? 59 judge; Then enter if not,＜time marking TT++ 61; If, then enter＜Turn=1 will add up and compose to variable〉60,＜time marking TT++〉61,＜Interrupt Process finishes〉62;
From＜communicating interrupt service routine〉63, enter＜message receives and interrupts〉64 judge; If then enter＜the communication received processing program〉65,＜the register setting〉67; Then enter if not,＜communication sends handling procedure〉66,＜register establishes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN 200610025154 CN1835320A (en) | 2006-03-28 | 2006-03-28 | Modularity dynamo integrated control protector |
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| CN 200610025154 CN1835320A (en) | 2006-03-28 | 2006-03-28 | Modularity dynamo integrated control protector |
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| CN1835320A true CN1835320A (en) | 2006-09-20 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662342A (en) * | 2012-05-07 | 2012-09-12 | 南通铭德机床有限公司 | Intelligent control system of shear bending machine |
| CN104518482A (en) * | 2014-12-18 | 2015-04-15 | 平顶山中选自控系统有限公司 | Intelligent comprehensive protective device with multiple communication modes for low-voltage motors |
| CN108233336A (en) * | 2018-01-24 | 2018-06-29 | 郭有陆 | Starting of three phases motor and running protection method and Electron Heat are after device |
| CN110543115A (en) * | 2019-08-13 | 2019-12-06 | 江苏斯菲尔电气股份有限公司 | multi-processor assembly type motor comprehensive protection controller |
-
2006
- 2006-03-28 CN CN 200610025154 patent/CN1835320A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662342A (en) * | 2012-05-07 | 2012-09-12 | 南通铭德机床有限公司 | Intelligent control system of shear bending machine |
| CN104518482A (en) * | 2014-12-18 | 2015-04-15 | 平顶山中选自控系统有限公司 | Intelligent comprehensive protective device with multiple communication modes for low-voltage motors |
| CN108233336A (en) * | 2018-01-24 | 2018-06-29 | 郭有陆 | Starting of three phases motor and running protection method and Electron Heat are after device |
| CN110543115A (en) * | 2019-08-13 | 2019-12-06 | 江苏斯菲尔电气股份有限公司 | multi-processor assembly type motor comprehensive protection controller |
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