CN103048618B - Test method of counter supporting unit motor - Google Patents
Test method of counter supporting unit motor Download PDFInfo
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- CN103048618B CN103048618B CN201210542008.1A CN201210542008A CN103048618B CN 103048618 B CN103048618 B CN 103048618B CN 201210542008 A CN201210542008 A CN 201210542008A CN 103048618 B CN103048618 B CN 103048618B
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Abstract
The invention discloses a test method of a counter supporting unit motor. The method mainly comprises the following steps of: adopting a 10KV high-voltage intelligent speed-regulating electricity-saving technology and a broadband filter technique, providing a power supply with adjustable frequency and voltage as an experimental power supply for powering the motor; and adopting a four-quadrant frequency conversion technology to feed back energy for a power grid, wherein an artificial load counter supporting unit motor is 350KW and 400KW high voltage motors. The test method of the counter supporting unit motor provided by the invention can overcome the defects of low testing efficiency, high manual labor strength, bad test result reliability and the like in the prior art, thereby realizing the advantages of high testing efficiency, low manual labor strength and good testing result reliability.
Description
Technical field
The present invention relates to electric machine speed regulation technical field, particularly, relate to a kind of method of testing to holder unit motor.
Background technology
The development of science and technology proposes more and more higher requirement to motor performance and quality index, and the development of Motor Measuring Technology and the development of electric machine industry are closely-related.Motor test is the important step to quality of motors and technical feature comprehensive evaluation, is the important procedure of motor manufacturing and production.Traditional testing equipment and method due to the running time long, the instrument that need observe is many, manually reads test data and carries out data analysis, calculating, have impact on quality and the precision of motor test to a certain extent.Along with the further lifting of current design of electrical motor level, technological level, and the raw-material performance of motor improves constantly, and the Performance and quality index of motor is greatly improved.Therefore, the requirement of Motor Measuring Technology is also improved day by day.
In recent years, along with the progress of scientific and technological level, improve motor test testing efficiency, reduction labor intensity of operating staff, raising measuring accuracy and test mass imperative, and due to the raising of abundant, the progress of means of testing, always equipment precision of the theory of testing and automatization test system and robot calculator widespread use in testing, the measuring technology of motor has also had the development of advancing by leaps and bounds really.
Motor test is to the semi-manufacture in motor manufacturing process and finished product, or the inspection that the electric property of auxiliary products based on motor, mechanical property, the technical indicator such as security performance and reliability are carried out.By these inspections, the correlated performance data of the tested motor of reflection that can be all or part of, uses these data, can judge whether tested motor meets designing requirement, the quality of quality and the target of improvement and direction.Motor test and detection are indispensable important steps in motor research, production and maintenance process.For the unit being engaged in motor research, production or maintenance, possess a set of satisfactory motor test checkout equipment and be necessary.
Therefore propose, to the method for testing of holder unit motor, by this test method, the indexs such as the efficiency of motor, temperature rise, power factor, starting moment, torque capacity, noise, vibration can be asked for.For design of electrical motor, quality inspection etc. provide necessary data supporting, the prerequisite that the correctness of its test data and accuracy are checking design and ensure the quality of products, the result of test is the important symbol of enterprise's designed capacity and product quality.
Realizing in process of the present invention, inventor finds at least to exist in prior art the defect such as testing efficiency is low, hand labor intensity is large and test result reliability is poor.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of method of testing to holder unit motor, to realize the advantage that testing efficiency is high, hand labor intensity is little and test result reliability is good.
For achieving the above object, the technical solution used in the present invention is: a kind of method of testing to holder unit motor, mainly comprises:
A, employing 10KV high-voltage intelligent speed-regulating electricity-saving technology and wideband filtering technique, provide the power supply that frequency and voltage is all adjustable, as the experimental power supply giving feeding electric motors;
B, employing four-quadrant converter technique, to electrical network feedback energy, fictitious load is 350KW and 400KW high-voltage motor to holder motor.
Further, step a specifically comprises:
From the output terminal of three-phase AC380V electrical network, the transformer, 10KV high-voltage intelligent speed-regulating electricity-saving device and the high-voltage motor that are connected successively are set, for testing the motor-operated running state to holder unit motor.
Further, the capacity of described transformer is 380V or 10KV.
Further, step b specifically comprises:
The low voltage motor, four-quadrant frequency converter and the PWM rectifier that are connected to the input end of three-phase AC380V electrical network are successively set, for testing the feedback generating state to holder unit motor;
Between described high-voltage motor and low voltage motor, be provided with the shaft coupling for connecting high-voltage motor and low voltage motor.
Further, described four-quadrant frequency converter, comprises the four-quadrant frequency converter manufactured by Ying Weiteng.
The method of testing to holder unit motor of various embodiments of the present invention, owing to mainly comprising: adopt 10KV high-voltage intelligent speed-regulating electricity-saving technology and wideband filtering technique, provide the power supply that frequency and voltage is all adjustable, as the experimental power supply giving feeding electric motors; Adopt four-quadrant converter technique, to electrical network feedback energy, fictitious load is 350KW and 400KW high-voltage motor to holder motor; Can communicate with computing machine as support intelligent speed-governing system, realize robotization and the intellectuality of motor experimental system; Thus the defect that in prior art, testing efficiency is low, hand labor intensity is large and test result reliability is poor can be overcome, to realize the advantage that testing efficiency is high, hand labor intensity is little and test result reliability is good.
Other features and advantages of the present invention will be set forth in the following description, and, partly become apparent from instructions, or understand by implementing the present invention.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, together with embodiments of the present invention for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the transmission route schematic diagram of the present invention to energy in the method for testing of holder unit motor;
Fig. 2 is the four quadrant running of the present invention to motor in the method for testing of holder unit motor.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described, should be appreciated that preferred embodiment described herein is only for instruction and explanation of the present invention, is not intended to limit the present invention.
According to the embodiment of the present invention, provide a kind of method of testing to holder unit motor.As depicted in figs. 1 and 2, the present embodiment mainly comprises:
A, employing 10KV high-voltage intelligent speed-regulating electricity-saving technology and wideband filtering technique, provide the power supply that frequency and voltage is all adjustable, as the experimental power supply giving feeding electric motors; Step a specifically comprises:
From the output terminal of three-phase AC380V electrical network, the transformer, 10KV high-voltage intelligent speed-regulating electricity-saving device and the high-voltage motor that are connected successively are set, for testing the motor-operated running state to holder unit motor; The capacity of transformer is 380V or 10KV;
B, employing four-quadrant converter technique, to electrical network feedback energy, fictitious load is 350KW and 400KW high-voltage motor to holder motor; Step b specifically comprises:
The low voltage motor, four-quadrant frequency converter and the PWM rectifier that are connected to the input end of three-phase AC380V electrical network are successively set, for testing the feedback generating state to holder unit motor; Four-quadrant frequency converter, comprises the four-quadrant frequency converter manufactured by Ying Weiteng;
Between high-voltage motor and low voltage motor, be provided with the shaft coupling for connecting high-voltage motor and low voltage motor.
A kind of method of testing to holder unit motor of above-described embodiment, the 10KV high-voltage intelligent speed-regulating electricity-saving technology that employing is advanced and wideband filtering technique carry out design and manufaction, to the 10KV high-voltage intelligent speed-regulating electricity-saving device product that the experimental power supply of feeding electric motors is the applicant's independent intellectual property right, to electrical network feedback energy is the four-quadrant frequency converter manufactured by Ying Weiteng, and fictitious load is 350KW and 400KW high-voltage motor to holder motor.
A kind of method of testing to holder unit motor of above-described embodiment, the power supply that frequency-adjustable, voltage can be provided adjustable by 10KV high pressure speed-regulating electricity-saving device, can realize the output of different voltage, to meet the needs of fictitious load to holder motor; Can use with four-quadrant frequency converter frequency conversion parallel operation, also can be used alone; Its output contact can output voltage difference, the different performance that detect 10KV high-voltage intelligent speed-regulating electricity-saving device different from waveform of frequency by internal control.Experiment uses advanced intelligent speed-regulating technology and computer technology to realize the robotization of Motor-Testing System, significantly reduce testing crew working strength, and there is reliable, accurate, energy-conservation, economic dispatch feature, significantly improve level and the means of 10KV high-voltage intelligent speed-regulating electricity-saving Product checking.
A kind of method of testing to holder unit motor of above-described embodiment, have employed energy feedback technology, the closed circulation achieving energy uses, energy-saving effect is remarkable, in mechanical back to back test, accompanies examination machine operation at Generator Status, the electric energy feedback sent uses, what system was supplemented is the loss of two motors and the loss of power supply itself, and generally within 30%, energy-saving effect reaches more than 70%.
A kind of method of testing to holder unit motor of above-described embodiment, have employed high-voltage intelligent speed adjusting technique and instead of traditional soft Starting Technology, decrease noise and vibration, reduce the noise pollution to environment, simultaneously owing to have employed the traditional resistance consumption method of high-pressure frequency-conversion energy feedback technical substitution, save the energy, decreased the consumption of chilled water, decrease thermal value, decrease the discharge of carbon dioxide; Also have the energy feedback of native system to use and be through feedback grid after four-quadrant frequency converter inversion, rectification, electrical network is not polluted, so native system environmental protection.
A kind of method of testing to holder unit motor of above-described embodiment, relate to 10KV high-voltage intelligent speed-regulating electricity-saving technology and wideband technical field of filtering, can communicate with computing machine as support intelligent speed-governing system, realize robotization and the intellectuality of motor experimental system.This adopts multilevel converter to the method for testing of holder unit motor, realizes wideband sinewave output, and waveform quality is fine, and harmonic content is very low, and simultaneity factor impedance matching performance is good, and the scope of application is wide, and its advantage is as follows:
(1) distribution capacity requires significantly to reduce, and is only about 30% of tested motor, significantly can save distribution investment.
(2) energy oneself in closed-loop system recycles, and power consumption is only about 30% of tested motor, and can save a large amount of electricity charge, use cost significantly reduces.
(3) have and have no-power compensation function, parallel function, the folded test function frequently of parallel operation.
(4) modular design, is convenient to dilatation.
(5) native system all adopts computing machine and PLC to control, and automaticity is high, simple to operate, easy to use; Mature technology, reliability are high.
Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (2)
1., to a method of testing for holder unit motor, it is characterized in that, mainly comprise:
A, employing 10KV high-voltage intelligent speed-regulating electricity-saving technology and wideband filtering technique, provide the power supply that frequency and voltage is all adjustable, as the experimental power supply giving feeding electric motors;
B, employing four-quadrant converter technique, to electrical network feedback energy, fictitious load is 350KW and 400KW high-voltage motor to holder motor;
Step a specifically comprises:
From the output terminal of three-phase AC380V electrical network, the transformer, 10KV high-voltage intelligent speed-regulating electricity-saving device and the high-voltage motor that are connected successively are set, for testing the motor-operated running state to holder unit motor;
The capacity of described transformer is 380V or 10KV;
Step b specifically comprises:
The low voltage motor, four-quadrant frequency converter and the PWM rectifier that are connected to the input end of three-phase AC380V electrical network are successively set, for testing the feedback generating state to holder unit motor;
Between described high-voltage motor and low voltage motor, be provided with the shaft coupling for connecting high-voltage motor and low voltage motor.
2. the method for testing to holder unit motor according to claim 1, is characterized in that described four-quadrant frequency converter comprises the four-quadrant frequency converter manufactured by Ying Weiteng.
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| CN201210542008.1A CN103048618B (en) | 2012-12-14 | 2012-12-14 | Test method of counter supporting unit motor |
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| CN201210542008.1A CN103048618B (en) | 2012-12-14 | 2012-12-14 | Test method of counter supporting unit motor |
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| CN103048618B true CN103048618B (en) | 2015-06-10 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104515921B (en) * | 2015-01-29 | 2017-06-23 | 四川诚邦测控技术有限公司 | A kind of energy-saving electric power measurement of power comprehensive performance testing system based on energy feedback |
| CN104656019A (en) * | 2015-03-14 | 2015-05-27 | 浙江大学 | Drag energy recovery test stand of hub motor |
| CN109212411A (en) * | 2017-06-29 | 2019-01-15 | 株洲中车时代电气股份有限公司 | Motor-Testing System |
| CN111007395B (en) * | 2019-11-16 | 2021-10-22 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Test topology and method for comprehensive power system of multifunctional ship direct-current power station |
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