CN106253788A - There is motor controller and the method for harmonic wave observing and controlling function - Google Patents
There is motor controller and the method for harmonic wave observing and controlling function Download PDFInfo
- Publication number
- CN106253788A CN106253788A CN201610700795.6A CN201610700795A CN106253788A CN 106253788 A CN106253788 A CN 106253788A CN 201610700795 A CN201610700795 A CN 201610700795A CN 106253788 A CN106253788 A CN 106253788A
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- China
- Prior art keywords
- unit
- motor
- protector
- display
- protection body
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control
- H02P23/04—Arrangements or methods for the control of AC motors characterised by a control method other than vector control specially adapted for damping motor oscillations, e.g. for reducing hunting
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Electric Motors In General (AREA)
Abstract
The invention discloses a kind of motor controller with harmonic wave observing and controlling function and method, this motor controller includes showing operating unit and protector sampling protection body, described display operating unit and protector sampling protection body connect, described display operating unit includes showing operating unit controller, push button signalling collecting unit, LCD liquid crystal display, LED state display unit and communication unit, push button signalling collecting unit, LCD liquid crystal display, LED state display unit and communication unit are connected with display operating unit controller respectively, described communication unit is connected with protector sampling protection body.In case motor additional superheat or generation moment resonance, affect motor properly functioning, extend the service life of motor, realize the harmonic measure to motor and defencive function simultaneously.
Description
Technical field
The invention belongs to motor control technology field, be specifically related to a kind of motor controller with harmonic wave observing and controlling function
And method.
Background technology
Since the seventies in last century, due to developing rapidly of Power Electronic Technique, various power electronic equipments are in power train
Application in system, industry, traffic and family is increasingly extensive, power electronic devices generation harmonic wave the harm caused is the tightest
Weight, production that harmonic wave makes electric energy, the efficiency transmitted and utilize reduce, and make device of overheating of electrical, produce resonance and noise, and make it
Insulation ag(e)ing, shortens, even breaks down or burn service life, and harmonic wave also can cause power system that parallel resonance locally occurs
Or series resonance so that harmonic content is amplified, and causes the equipment burnouts such as motor capacitor.Also relay can be made to protect with time-harmonic wave
Protecting and automaton misoperation so that electric energy metrical causes confusion, for the outside of power system, harmonic wave is to communication equipment
Also serious interference can be produced with electronic equipment.
Motor can not be ignored as the main loads of power system, the impact on entire society's economy, and nowadays, harmonic wave is tight
Principal characteristic creates the biggest impact to motor properly functioning, as follows: the magnetic field that mains by harmonics produces is to motor meeting
Produce asynchronous additional torque；The impact on motor temperature of the mains by harmonics electric current；The harmonic current shadow to motor added losses
Ring；The harmonic current impact on motor mechanical movement
Based on the above, invent a kind of motor controller with harmonic wave observing and controlling function, when bigger harmonic wave being detected
During component, do not eliminate in the range of the regular hour, carry out motor harmonic protection in time, because of China's motor usage quantity
Huge, solve harmonic wave having the impact of motor running must be practical value, its wide market.
Summary of the invention
According to above the deficiencies in the prior art, the technical problem to be solved is to propose one to have harmonic wave observing and controlling
The motor controller of function and method, by utilizing ATT7022D computation chip one cycle 64 point sampling speed, and have 2K
Buffer unit function, by Fourier transformation, calculates 3-31 order harmonic components in electrical network, if harmonic wave divides within a certain period of time
Amount does not eliminate, and has and stops motor running in time, in case motor additional superheat or generation moment resonance, affects motor
Properly functioning, extend the service life of motor, realize the harmonic measure to motor and defencive function simultaneously.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of electricity with harmonic wave observing and controlling function
Motivation controller, this motor controller includes showing operating unit and protector sampling protection body, and described display operation is single
Unit and protector sampling protection body connect, and described display operating unit includes showing that operating unit controller, push button signalling are adopted
Collection unit, LCD liquid crystal display, LED state display unit and communication unit, push button signalling collecting unit, LCD liquid crystal display
Unit, LED state display unit and communication unit are connected with display operating unit controller respectively, described communication unit and protection
Device sampling protection body connects.Described protector sampling protection body includes that what microcontroller was connected respectively with microcontroller adopts
Collection analogue signal unit, collection remote signalling amount unit, protector sampling protection body communication unit, LED state display unit.Described
Protector sampling protection body communication unit includes display communication unit and host computer communication unit, described display communication unit
Unit is connected with communication unit, and described host computer communication unit is connected with host computer.Described protector sampling protection body also includes
The three phase metering chip being connected with microcontroller.Described protector sampling protection body also includes being connected respectively with microcontroller
Non-volatile registers, transducing unit.
The control method of a kind of motor controller with harmonic wave observing and controlling function, it is characterised in that the method display behaviour
Comprise the following steps as unit: step one, system initialize；Step 2, carry out parameter setting by button；Step 3,
Carry out on off control, control motor and carry out action, step 4 and protector sampling this body communication of protection；Step 5, at LCD
Liquid crystal display video data.The method protector sampling protection body comprises the following steps: step a, to three phase metering core
Sheet initializes, and carries out voltage x current sampling, caches, the data of sampling by Fourier transformation data, to harmonic wave
Measure and judge；Step b, protection body of sampling protector include that microcontroller initializes, and intervalometer 0 interrupts initializing,
Serial communication interrupts initial, opens interruptions, that voltage x current carries out A/D is professional；Step c, judges motor according to step a and step b
The need of protection；Step d, if motor needs protection, motor is reported to the police.
The medicine have the advantages that in ARM7LPC2134 as acp chip, coordinate ATT7022D three phase metering chip,
Realized the sampling of voltage, current measurement value by transformer, calculate current/voltage value in real time, it is achieved motor ground/electric leakage,
The faults such as stall, thermal overload, three-phase current unbalance, overvoltage, under-voltage, underloading have defencive function, utilize ATT7022D to measure
Chip one cycle 64 point sampling speed, and have 2K buffer unit function, by Fourier transformation, calculates in electrical network 3-31 time
Harmonic component, if harmonic component does not eliminate within a certain period of time, stops motor running in time, in case the additional mistake of motor
Heat or moment resonance occurs, affect motor properly functioning, and in the service life of prolongation motor, realize motor is humorous simultaneously
Wave measurement and defencive function.
Accompanying drawing explanation
Below the content expressed by this specification accompanying drawing and the labelling in figure are briefly described:
Fig. 1 is the system construction drawing of the display operation part of the detailed description of the invention of the present invention.
Fig. 2 is the protector sampling protection main body system structure chart of the detailed description of the invention of the present invention.
Fig. 3 is the operation display part subsystem flow chart of the detailed description of the invention of the present invention.
Fig. 4 is the system flow chart gathering protection body apparatus of the detailed description of the invention of the present invention.
Detailed description of the invention
Below against accompanying drawing, by the description to embodiment, each component that the detailed description of the invention of the present invention is the most involved
Shape, structure, mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and
Operate with method etc., be described in further detail, to help those skilled in the art to the inventive concept of the present invention, technology
Scheme has more complete, accurate and deep understanding.
As it is shown in figure 1, the design of display operating unit, this display operating device uses Taiwan macrocrystalline company and produces
CPU STC90C58RD, its operating frequency reaches 80MHZ, 32K FRASH memorizer 1280 byte RAM, has volume low power consumption
Extremely low, capacity of resisting disturbance is strong, and wide temperature working range, it is adaptable to various Industry Control, by communication port and the native device of CPU
Carry out communication in real time, collecting sampling protection body collect motor running time the parameter such as various states and voltage x current,
Show on display operating device intuitively, arrange when motor protection runs various by the button of operation device simultaneously
Technical parameter, saves it in the EEPROM of CPU, and by RS485 communication adopting the protector of the parameter transmission of setting
Sample protection body apparatus is protected.
As in figure 2 it is shown, the design of protector sampling protection body part, this sampling protection part technical scheme uses
The LPC2136 microcontroller chip based on ARM7TDMI-S kernel of the up-to-date production of PHILIPS company, coordinates ATT7022D metering
Chip, is analyzed judging the ruuning situation of motor, thus makes phase after the voltage and current parameter value collected being calculated
The protection act answered.Simultaneously by these voltages and current data and the state of motor running, divided by two PORT COM
Deliver to the display operation part device of host computer backstage and protector on not, thus complete the protection merit of motor intelligently
Energy.
As it is shown on figure 3, be the operation display part subsystem flow chart of the present invention, this cell mesh is mono-with STC90C58R
Control system centered by sheet machine, single-chip microcomputer combines certain peripheral circuit to complete push button signalling collection and to pass with body signal
Defeated etc..
As shown in Figure 4, for gathering the system flow chart of protection body apparatus.
Above in conjunction with accompanying drawing, the present invention is exemplarily described, it is clear that the present invention implements not by aforesaid way
Restriction, as long as have employed the method design of the present invention and the improvement of various unsubstantialities that technical scheme is carried out, or without changing
Enter and design and the technical scheme of the present invention are directly applied to other occasion, all within protection scope of the present invention.This
Bright protection domain should be as the criterion with the protection domain that claims are limited.
Claims (7)
1. a motor controller with harmonic wave observing and controlling function, it is characterised in that this motor controller includes display behaviour
Make unit and protector sampling protection body, described display operating unit and protector sampling protection body to connect, described display
Operating unit includes showing that the display of operating unit controller, push button signalling collecting unit, LCD liquid crystal display, LED state is single
Unit and communication unit, push button signalling collecting unit, LCD liquid crystal display, LED state display unit and communication unit respectively with
Display operating unit controller connects, and described communication unit is connected with protector sampling protection body.
The motor controller with harmonic wave observing and controlling function the most according to claim 1, it is characterised in that described protector
Sampling protection body include collection analogue signal unit that microcontroller is connected respectively with microcontroller, gather remote signalling amount unit,
Protector sampling protection body communication unit, LED state display unit.
The motor controller with harmonic wave observing and controlling function the most according to claim 2, it is characterised in that described protector
Sampling protection body communication unit includes display communication unit and host computer communication unit, and described display communication unit is with logical
Letter unit connects, and described host computer communication unit is connected with host computer.
The motor controller with harmonic wave observing and controlling function the most according to claim 2, it is characterised in that described protector
Sampling protection body also includes the three phase metering chip being connected with microcontroller.
The motor controller with harmonic wave observing and controlling function the most according to claim 2, it is characterised in that described protector
Sampling protection body also includes non-volatile registers, the transducing unit being connected respectively with microcontroller.
6. according to the control method of the motor controller with harmonic wave observing and controlling function described in claim 1-5 any one,
It is characterized in that, the method display operating unit comprises the following steps: step one, system initialize；Step 2, by pressing
Key carries out parameter setting；Step 3, carries out on off control, controls motor and carries out action, step 4 and protector sampling protection
This body communication；Step 5, at LCD liquid crystal display video data.
The control method of the motor controller with harmonic wave observing and controlling function the most according to claim 6, it is characterised in that
The method protector sampling protection body comprises the following steps: step a, initializes three phase metering chip, carries out voltage
The data of sampling are cached by current sample, by Fourier transformation data, judge harmonic measure；Step b, to protection
Device sampling protection body includes that microcontroller initializes, and intervalometer 0 interrupts initializing, and serial communication interrupts initial, in opening
Disconnected, voltage x current carries out A/D specialty；According to step a and step b, step c, judges that motor is the need of protection；Step d, as
Really motor needs protection, and motor is reported to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700795.6A CN106253788A (en) | 2016-08-22 | 2016-08-22 | There is motor controller and the method for harmonic wave observing and controlling function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610700795.6A CN106253788A (en) | 2016-08-22 | 2016-08-22 | There is motor controller and the method for harmonic wave observing and controlling function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106253788A true CN106253788A (en) | 2016-12-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610700795.6A Pending CN106253788A (en) | 2016-08-22 | 2016-08-22 | There is motor controller and the method for harmonic wave observing and controlling function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983097A (en) * | 2018-07-27 | 2018-12-11 | 北京天诚同创电气有限公司 | motor resonance detection system and detection method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101514999A (en) * | 2008-12-15 | 2009-08-26 | 安徽鑫龙电器股份有限公司 | Electric power measurement multifunctional instrument system and method for measurement |
| CN101710153A (en) * | 2009-12-12 | 2010-05-19 | 安徽鑫龙电器股份有限公司 | Embedded electric energy meter with harmonic measurement function and measurement method thereof |
| CN102426291A (en) * | 2011-09-29 | 2012-04-25 | 安徽鑫龙电器股份有限公司 | Single-phase multifunctional electric quantity instrument and measuring method thereof |
| DE102014223201A1 (en) * | 2013-11-19 | 2015-05-21 | Koenig & Bauer Aktiengesellschaft | Method for vibration compensation of motor harmonics |
-
2016
- 2016-08-22 CN CN201610700795.6A patent/CN106253788A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101514999A (en) * | 2008-12-15 | 2009-08-26 | 安徽鑫龙电器股份有限公司 | Electric power measurement multifunctional instrument system and method for measurement |
| CN101710153A (en) * | 2009-12-12 | 2010-05-19 | 安徽鑫龙电器股份有限公司 | Embedded electric energy meter with harmonic measurement function and measurement method thereof |
| CN102426291A (en) * | 2011-09-29 | 2012-04-25 | 安徽鑫龙电器股份有限公司 | Single-phase multifunctional electric quantity instrument and measuring method thereof |
| DE102014223201A1 (en) * | 2013-11-19 | 2015-05-21 | Koenig & Bauer Aktiengesellschaft | Method for vibration compensation of motor harmonics |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983097A (en) * | 2018-07-27 | 2018-12-11 | 北京天诚同创电气有限公司 | motor resonance detection system and detection method |
| CN108983097B (en) * | 2018-07-27 | 2021-01-22 | 北京天诚同创电气有限公司 | Motor resonance detection system and detection method |
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Application publication date: 20161221 |
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