CN202870263U - Motor management device with online energy efficiency monitoring function - Google Patents
Motor management device with online energy efficiency monitoring function Download PDFInfo
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- CN202870263U CN202870263U CN 201220264280 CN201220264280U CN202870263U CN 202870263 U CN202870263 U CN 202870263U CN 201220264280 CN201220264280 CN 201220264280 CN 201220264280 U CN201220264280 U CN 201220264280U CN 202870263 U CN202870263 U CN 202870263U
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Abstract
A motor management device with an online energy efficiency monitoring function comprises a power module (10), a signal collecting module (20), an analog signal processing module (30), a data operation analysis module (50) and an output module (60), which are sequentially connected. The motor management device further comprises a data storage module (40) which is respectively connected with the analog signal processing module (30), the data operation analysis module (50), and the output module (60). The motor management device monitors data in a real-time manner and is capable of displaying in real time data collected by a motor and energy efficiency monitoring data obtained after operation analysis, enabling the data to be compared with an energy efficiency standard, and displaying and sending out an alarm signal. Due to application of the motor management device, fault time and fault times of the motor are reduced, and a certain prevention effect can be achieved.
Description
Technical field
The utility model relates to motor technology, particularly relates to the device of Motor Energy Efficiency management and monitoring.
Background technology
Motor is in our life, and particularly industrial circle uses extensive especially.At present, normally used is to be the propulsion system of mechanical energy with electric energy conversion.There are to protect air switch, isolating switch, the electrothermal relay of motor, and associated electrical and microcomputer type overload protection equipment; Be useful on the transmitters such as measuring voltage, electric current, power, electric degree, AC signal is become direct current signal, then deliver to microcomputer (or PLC) sample devices, or deliver to the instrument demonstration.Certainly, nowadays, alternating current-direct current is also arranged by the microcomputer measuring equipment of sampling; Adopt PLC and industrial computer that motor is controlled system with information management; Even can realize that in addition a motor monitors, protects management and be controlled to be integrated motor management device.Present motor management system generally all need to could show motor parameter in background management system, and is just to detect once every some cycles, and information is untimely, and monitoring is inconvenient.
The utility model content
The utility model provides a kind of motor management device with online energy efficiency monitoring, adopts Real-Time Monitoring and the on-the-spot mode that shows, solves monitoring inconvenience and the untimely technical matters of information in the prior art.
The utility model comprises power module, signal acquisition module, analog signal processing module, data operation analysis module and the output module that connects successively for this motor management device with online energy efficiency monitoring that provides is provided, also further comprise data memory module, this data memory module connects respectively described analog signal processing module, data operation analysis module and output module; Described signal acquisition module includes electric quantity signal collecting module and non-electric charge quantity signalling acquisition module.
Described output module comprises data outputting module and the data disaply moudle that is connected with this data outputting module and data communication module, and described data memory module connects respectively this data disaply moudle and data communication module.
This monitoring method with motor management device of online energy efficiency monitoring may further comprise the steps: A. gathers the parameter of motor by signal acquisition module, the motor parameter that gathers comprises the electric quantity signal collection: voltage, electric current, power factor, and non-electric charge quantity signalling collection: electromotor winding temperature, noise, torque and rotating speed; B. by the analog signal processing module motor parameter that obtains in the steps A is screened, the filtering invalid data, and data are processed; C. by the data operation analysis module normal data of storing in the valid data that obtain among the step B and the data memory module is compared, the data operation analysis module also calculates by the motor parameter that gathers and obtains the motor efficiency index, be designed with in advance the error amount index in the data operation analysis module, when the error between acquisition motor parameter and the normal data surpasses this error amount index, the data operation analysis module sends alerting signal, and exports by output module; D. by output module the result who compares among the step C is exported, the output form of output module comprises by the data of data disaply moudle with comparative result, warning message and analog signal processing module and showing, and also comprises by the data of data communication module with comparative result, warning message and analog signal processing module outputing on background management system or other equipment.
Motor management device with online energy efficiency monitoring of the present utility model; being different from some other motor protecting device is to be the measurement in cycle for motor operation course a period of time, and the utility model is the energy efficiency monitoring motor management device for motor Real-Time Monitoring and management.The following beneficial effect that its utilization has:
1) Monitoring Data has real-time, can see at any time the data of collection at display, has reduced fault-time and the number of times of motor, reaches certain preventive effect.
2) can be with the data after the data operation analysis, efficiency curve and the standard efficiency curve of the motor actual motion that forms compare, hang down the r%(Motor Energy Efficiency permissible error index of standard efficiency curve when the value of motor actual motion efficiency curve, r＜0) during the curve of cyclical fluctuations, send alerting signal, can make things convenient for like this user that the efficiency of motor is monitored in real time, and can pass through alarm set point, the reason that Motor Energy Efficiency reduces is analyzed, made basic judgement.
Description of drawings
Fig. 1 is that the utility model management devices forms the framework synoptic diagram.Fig. 2 is the synoptic diagram of the utility model observation process.Fig. 3 is one of motor efficiency correlation curve figure.Fig. 4 is two of motor efficiency correlation curve figure.Fig. 5 is the efficient correlation curve figure of motor different rotating speeds.
Embodiment
In conjunction with above-mentioned description of drawings specific embodiment of the utility model.
By among Fig. 1 as can be known, this motor management device with online energy efficiency monitoring comprises power module 10, signal acquisition module 20, analog signal processing module 30, data operation analysis module 50 and the output module 60 that connects successively, also further comprise data memory module 40, this data memory module 40 connects respectively described analog signal processing module 30, data operation analysis module 50 and output module 60.Described signal acquisition module 20 comprises electric quantity signal collecting module 21 and non-electric charge quantity signalling acquisition module 22.Described output module 60 comprises data outputting module 61 and the data disaply moudle 62 that is connected with this data outputting module 61, and described data memory module 40 connects this data disaply moudle 62.Described output module 60 comprises data outputting module 61 and the data communication module 63 that is connected with this data outputting module 61, and described data memory module 40 connects this data communication module 63.Wherein the each several part function is as follows:
Signal acquisition module 20(comprises electric quantity signal collecting module 21 and non-electric charge quantity signalling acquisition module 22); The motor live signal is gathered;
The signal that electric quantity signal collecting module 21 gathers comprises voltage, electric current, power factor;
Non-electric charge quantity signalling acquisition module collection signal comprises electromotor winding temperature, noise, torque and rotating speed;
Analog signal processing module 30 is simulating signals that signal acquisition module is obtained, and the disabled invalid data of filtering is processed useful parameter;
Data memory module 40 is used for the real time data of storage data acquisition module and the data after the processing of data operation analysis module;
Data operation analysis module 50 carries out Data Management Analysis with the data after the analog signal processing;
Data disaply moudle 62 is used for the data of display simulation signal processing module and the data of data operation analysis module;
Have motor management device that online efficiency detects and be in data operation analysis module 50 by the motor parameter history curve that collects is analyzed contrast, carry out Energy Efficiency Analysis, when being lower than the value of Energy Efficiency Standard regulation, send alerting signal.
Online energy efficiency monitoring step of the present utility model is as shown in Figure 2:
Step 1: energy signals collecting: the data of obtaining Real-time Collection;
Step 2: signal is processed, and obtain valid data: the Real-time Collection signal that obtains is screened, and the filtering garbage signal is obtained valid data, i.e. voltage, electric current, power factor (PF), harmonic wave, torque and rotating speed;
Step 3: data operation analysis: the real-time valid data that obtain are carried out computational analysis process; Be implemented as follows: the supply voltage that collects and electric current and power factor are kept in the data memory module, and their product is as the power input of motor, i.e. P
1=m
1UIcos ∮.The torque T of the motor that real-time monitors by torque sensor
2, the motor that real-time monitors of speed probe rotation speed n, temperature sensor monitors to the temperature T of motor winding and the noise δ of the motor that noise transducer monitors because P
1=P
2+ P
Me+ P
Ad(P
MeBe electrical machinery loss, P
AdBe added losses), and electrical machinery loss and added losses, mainly the noise with electric motor overheating and generation of vibration embodies.As can be seen from the above equation, at P
1In certain situation, want to improve efficiency, as long as make the noise of electric motor overheating and generation of vibration minimum, just can play the effect that improves efficiency.According to the mechanical output P that exports on the motor reel
2=T
2N/9.55 obtains P
2Value, carry out at last ratio, just obtained the efficient of motor, namely
η=P
2/P
1100%。
As shown in Figure 3, be the motor efficiency correlation curve.
The Energy Efficiency Standard curve generally is motor when dispatching from the factory, the efficiency curve that producer has determined.And the temperature rise of motor winding, iron core, commutator, collector ring and the temperature limit of bearing etc. are all carried out according to the regulation of chapter 5 among the standard GB/T 755-87; The operating specified temperature rise of motor should by the regulation of the name plate of motor temperature rise value of producer, guarantee all to be no more than its temperature rise value under any ruuning situation.Motor operation allowable temperature commonly used around environment temperature is+40 ℃, motor casing temperature maximum safety temperature must not surpass 75 ℃ (low-tension motor), and general electromotor winding temperature is higher 20～25 ℃ than casing temperature, and namely the electromotor winding temperature scope should be no more than 95 ℃ and the separately motor standard efficiency permissible error index r% corresponding according to the different model motor.
So motor standard efficiency curve of the present utility model is chosen, and is divided into following two kinds of situations.
One, be that the efficiency curve determined when dispatching from the factory with motor is as the standard efficiency curve of motor, efficiency curve 3-1 as shown in Figure 3, efficiency curve 3-2 then is the efficiency curve that generates in the motor actual moving process among Fig. 3, two efficiency curves compare, when the motor actual operation curve, when motor standard efficiency permissible error index r% is following, send alerting signal, and output this moment winding temperature T, the noise δ and the efficiency value that collect, can substantially determine the reason that Motor Energy Efficiency reduces by these parameters, or even the trouble spot.
If two, when dispatching from the factory, this kind motor do not provide definite efficiency curve, then can be according to the minimum in the heating temp scope of name plate of motor regulation, noise hour, the curve 4-2 that the actual efficiency value of motor in operation a period of time formed, with the actual motion efficiency curve that obtains, be optimized, final form more smooth and meet motor actual motion required standard efficiency curve, shown in 4-1 among Fig. 4, this efficiency curve is the standard efficiency curve of this model motor just.Control methods is shown in situation one.
Whether satisfy Energy Efficiency Standard: when being lower than motor standard efficiency permissible error index r%, send alerting signal, and record this efficiency value constantly, by with standard efficiency curve 3-1 comparative analysis, and the data that gather by temperature sensor and noise transducer, just can substantially judge the reason that causes that Motor Energy Efficiency reduces, thereby reach the efficiency of Real-Time Monitoring motor, reach good preventive measure, effectively reduce motor fault number of times and fault-time, make that motor is efficient, safety, reliability service.
Step 4: result's output.With the data after data operation analyzing and processing output, can be used as effective foundation of judging the motor operational energy efficiency, play the energy efficiency state of Real-Time Monitoring motor, and show as required on time and be uploaded to the backstage.
Example 1: motor is widely used in the every field such as industry, commerce, public utility and household electrical appliance, as the power of the various devices such as blower fan, water pump, compressor, lathe.The application of motor in iron and steel enterprise also is indispensable equipment, no matter is the technological process of ironmaking, or in the steelmaking process, nearly all process all will be used motor and come work as power.Particularly delivery and turn-up process in hot rolling and the cold rolling process in carrying out this operation process, in case the faults such as generation motor cut can cause whole steel plate to become steel scrap when serious, well imagine that the economic loss that this fault is brought is immeasurable.As seen, therefore the importance of motor must guarantee motor safety, reliable, efficiently operation.
Utilize online energy efficiency monitoring motor management device of the present invention respectively to certain iron and steel enterprise's steel-making, the motor of iron-smelting process process carries out real-time energy efficiency monitoring, the motor voltage that collects by input, electric current, the torque that collects on power factor and the motor rotary shaft, rotating speed, electromotor winding temperature and noise, make motor in operation a period of time, the efficiency value of different rotating speeds during the operation of record motor, forming the efficiency curve of determining when efficiency curve and motor dispatch from the factory compares, as shown in Figure 5, be respectively motor speed when being n1=3000r/min, the efficiency curve 5-1 that motor actual motion efficiency curve 5-2 determines when corresponding motor dispatches from the factory during with this rotating speed; During n2=1500r/min, the efficiency curve 5-3 that motor actual motion efficiency curve 5-4 determines when corresponding motor dispatches from the factory during with this rotating speed; The efficiency curve 5-5 that motor actual motion efficiency curve 5-6 during n3=1000r/min determines when corresponding motor dispatches from the factory during with this rotating speed; Respectively three groups of efficiency curves are analyzed, when a certain moment efficiency value hangs down efficiency allowable fluctuation range r%, send alerting signal.A as shown in Figure 5, B, 3 of C obviously can find out and not meet Energy Efficiency Standard, send alerting signal, and the noise δ that collects of the temperature T that collects in conjunction with temperature sensor and noise transducer, can be basic analyze is the reason that Motor Energy Efficiency reduces.With regard to the A point, if the temperature limit that the temperature T that temperature sensor collects satisfies motor when dispatching from the factory, and the noise δ that noise transducer collects does not meet the demands, and can judge substantially that then the efficiency that the excessive vibration of motor causes reduces; The bearing wear of motor vibration meeting acceleration motor is shortened the normal service life of bearing greatly, and simultaneously, motor vibration will make winding insulation descend.Because vibration makes motor end wiring loosening, cause the end winding to produce mutually friction, insulation resistance reduces, and insulation life shortens, and causes insulation breakdown when serious.In addition, motor vibration can cause the damage of institute's driving machinery, and very large noise is sent in the normal operation of equipment around the impact.These harm are that iron and steel enterprise steel-making, iron-smelting process process institute do not allow to occur, in case generation, the economic loss that causes and casualties are beyond measure.By that analogy; can judge respectively according to same method and to cause the B point; the reason that C point efficiency reduces; and then operation conditions that can the Real-Time Monitoring motor; accomplish to predict in advance; the online working condition of understanding motor; in case find that the data collect have unusually or when not satisfying Energy Efficiency Standard; send alerting signal; according to the position of sending signal and the electromotor winding temperature that collects and noise; can play booster action, can coarse analysis go out the reason that efficiency reduces that causes of motor, and in time the personnel of arranging work check; maintenance; not only improve the efficient of motor, and reduced the number of stoppages of motor, shortened fault-time; prolonged the serviceable life of motor, finally can make motor safety; reliably; efficiently operation.Not only reduced operating cost, and energy-conserving and environment-protective.
Above content is in conjunction with concrete preferred implementation further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace, all should be considered as belonging to protection domain of the present utility model.
Claims (3)
1. the motor with online energy efficiency monitoring is managed device, it is characterized in that: this management devices comprises power module (10), signal acquisition module (20), analog signal processing module (30), data operation analysis module (50) and the output module (60) that connects successively, also further comprise data memory module (40), this data memory module (40) connects respectively described analog signal processing module (30), data operation analysis module (50) and output module (60).
2. described motor with online energy efficiency monitoring is managed device according to claim 1, it is characterized in that: described output module (60) comprises data outputting module (61) and the data disaply moudle (62) that is connected with this data outputting module (61), and described data memory module (40) connects this data disaply moudle (62).
3. described motor with online energy efficiency monitoring is managed device according to claim 1, it is characterized in that: described output module (60) comprises data outputting module (61) and the data communication module (63) that is connected with this data outputting module (61), and described data memory module (40) connects this data communication module (63).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264280 CN202870263U (en) | 2012-06-06 | 2012-06-06 | Motor management device with online energy efficiency monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220264280 CN202870263U (en) | 2012-06-06 | 2012-06-06 | Motor management device with online energy efficiency monitoring function |
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| Publication Number | Publication Date |
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| CN202870263U true CN202870263U (en) | 2013-04-10 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680896A (en) * | 2012-06-06 | 2012-09-19 | 深圳市海亿达能源科技股份有限公司 | Motor management device with online energy efficiency monitoring function and monitoring method thereof |
| CN103278771A (en) * | 2013-05-22 | 2013-09-04 | 广西电网公司电力科学研究院 | Identification method for abnormal state of three-phase asynchronous motor at industrial site |
| CN103888322A (en) * | 2014-04-15 | 2014-06-25 | 重庆贻科科技有限公司 | Monitoring method and monitoring system of motor |
| CN104615085A (en) * | 2015-02-06 | 2015-05-13 | 蚌埠市金林数控机床制造有限公司 | Machine tool monitoring system and method |
| CN106028110A (en) * | 2016-07-13 | 2016-10-12 | 福建捷联电子有限公司 | Liquid crystal television or monitor with power supply and environment monitoring function |
| CN108152735A (en) * | 2017-11-30 | 2018-06-12 | 杭州威衡科技有限公司 | A kind of distribution polyphase machine test system |
| CN109061470A (en) * | 2018-09-04 | 2018-12-21 | 苏州太谷电力股份有限公司 | The data acquisition analysis method and real-time analyzer of terminal motor |
-
2012
- 2012-06-06 CN CN 201220264280 patent/CN202870263U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102680896A (en) * | 2012-06-06 | 2012-09-19 | 深圳市海亿达能源科技股份有限公司 | Motor management device with online energy efficiency monitoring function and monitoring method thereof |
| CN103278771A (en) * | 2013-05-22 | 2013-09-04 | 广西电网公司电力科学研究院 | Identification method for abnormal state of three-phase asynchronous motor at industrial site |
| CN103278771B (en) * | 2013-05-22 | 2015-06-17 | 广西电网公司电力科学研究院 | Identification method for abnormal state of three-phase asynchronous motor at industrial site |
| CN103888322A (en) * | 2014-04-15 | 2014-06-25 | 重庆贻科科技有限公司 | Monitoring method and monitoring system of motor |
| CN103888322B (en) * | 2014-04-15 | 2017-10-10 | 重庆贻科科技有限公司 | The monitoring method and monitoring system of motor |
| CN104615085A (en) * | 2015-02-06 | 2015-05-13 | 蚌埠市金林数控机床制造有限公司 | Machine tool monitoring system and method |
| CN106028110A (en) * | 2016-07-13 | 2016-10-12 | 福建捷联电子有限公司 | Liquid crystal television or monitor with power supply and environment monitoring function |
| CN108152735A (en) * | 2017-11-30 | 2018-06-12 | 杭州威衡科技有限公司 | A kind of distribution polyphase machine test system |
| CN109061470A (en) * | 2018-09-04 | 2018-12-21 | 苏州太谷电力股份有限公司 | The data acquisition analysis method and real-time analyzer of terminal motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Motor management device with online energy efficiency monitoring function and monitoring method thereof Effective date of registration: 20160106 Granted publication date: 20130410 Pledgee: Shenzhen high tech investment and financing Company limited by guarantee Pledgor: Shenzhen Hietech Energy Technology Co., Ltd. Registration number: 2016990000004 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |