CN105319504A - Tap position control method of dry type load device - Google Patents
Tap position control method of dry type load device Download PDFInfo
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- CN105319504A CN105319504A CN201510770678.2A CN201510770678A CN105319504A CN 105319504 A CN105319504 A CN 105319504A CN 201510770678 A CN201510770678 A CN 201510770678A CN 105319504 A CN105319504 A CN 105319504A
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- gear
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- load device
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
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Abstract
The invention provides a tap position control method of a dry type load device. The method comprises the steps of finding out the tap position combinations with the power sum equal to a set power value; removing the tap position combinations which are impossible owing to faults from the tap position combinations found out in the previous step according to the fault condition of the dry type load device; selecting an optimal value from the remaining tap position combinations for final output according to two indexes that the number of tap positions requiring operation is the lowest and tap positions with the lowest number of times of operations are selected preferentially. When adjusting power, an operator only needs to give a set power value without the need of considering tap position selection, so that the working load of the operator is greatly reduced and the problem that some contactors reach the service lifetime too early because of frequent operations is solved; in case of the faults of non-action of contactors, non-rotation of fans and excessive temperature of exhaust in a test process, the tap positions with faults can be broken automatically and switch to tap positions without faults, and thus the normal progress of tests can be furthest guaranteed.
Description
Technical field
The present invention relates to genset performance test field, particularly, relate to a kind of gear control method of dry type load device.
Background technology
Dry type load device is widely used in performance test and the maintaining of genset, primarily of compositions such as contactor, resistor and cooling fans, principle of work is the power being consumed genset by resistor heating power, (publication number CN202975288U, CN103383434A, CN203811628U, CN201637827U, CN103941192A, CN204129185U).The principle of dry type load device regulating power to change similar: the gear being provided with several different capacity, the quantity of often kind of gear is not quite similar, and such as: power is that the gear one of P1 has A1, power is that the gear one of P2 has A2,, power is that the gear one of Pn has An; When to want power setting for certain value, from different gear, just select suitable several respectively, make the power summation of these gears equal setting value.
For " how selecting the gear combination that power summation equals setting value " this problem, the solution of existing dry type load device mainly contains two, one is decide to select which gear in its sole discretion by operating personnel, two is preserve the corresponding relation that set value of the power and gear combine in advance, such as 1000kW closes certain several gear, 2000kW closes other several gears etc., and operating personnel just close predetermined gear after providing set value of the power.These two methods have its weak point: if select gear voluntarily by operating personnel, then add the work load of operating personnel, intelligent product degree is not enough; If operating personnel just close predetermined gear after providing set value of the power, be then difficult to make normally carrying out of flexible response, at utmost warranty test to catastrophic failure.And these two kinds of methods are all difficult to action frequency and the life-span of even contact device, some contactor premature breakdown may be caused.
Summary of the invention
The object of the invention is to, for the problems referred to above, propose a kind of gear control method of dry type load device, with realize existing reduction operating personnel work load and when catastrophic failure the at utmost warranty test advantage of normally carrying out.
For achieving the above object, the technical solution used in the present invention is:
A gear control method for dry type load device, comprises
Find out the step that power summation equals the gear combination of set value of the power;
According to the failure condition of dry type load device, from the above-mentioned gear combination found out, reject the step of the gear combination that cannot realize because of fault;
And
The gear two indices that the numbers of gear steps operated as required is minimum and prioritizing selection action frequency is minimum, picks out an optimal value, for the step finally exported from remaining gear combination.
Preferably, find out the step that power summation equals the gear combination of set value of the power, the concrete employing method of exhaustion finds out the gear combination that power summation equals set value of the power.
Preferably, the method adopts the concrete steps of the method for exhaustion to comprise:
(1) that is: exhaustive all gears combination is select X1 gear the gear of P1, X1≤A1 from power, be select X2 gear the gear of P2, X2≤A2 from power ... be select Xn gear the gear of Pn, Xn≤An from power, gear combination adds up to:
wherein A1, A2 ... An is respectively gear that power is P1, power is the gear of P2 ... power is total number of the gear of Pn;
(2) the power summation of each gear combination is calculated;
(3) by exhaustive out gear combination and power summation save as a list, i.e. gear Assembly Listing;
(4) select gear combination in above-mentioned gear Assembly Listing, perform cycle calculations and find out and meet set value of the power and the minimum gear of the numbers of gear steps of needs operation combines; If the number of times of cycle calculations is greater than gear combination sum, just performs (12), otherwise perform (5);
(5) from gear Assembly Listing, next gear is selected to combine, and the power summation that the gear combination selected in reading is corresponding;
(6) if the power summation of the gear combination selected in (5) is not equal to set value of the power, just return (4),
(7) if deposit the gear combination selected in (5) to there is fault, this gear is combined cannot be realized, and just returns (4), otherwise performs (8);
(8) numbers of gear steps changing to the required operation of gear combination selected (5) from current gear combination of having come into operation is calculated;
(9), compared with the gear preserved with a upper cycle combines, if need the numbers of gear steps of operation not less, just return (4), otherwise perform (10);
(10) preserve gear combination selected in (5), waiting until next cycle compares, and returns (4);
(11) if found meet set value of the power and needs operation numbers of gear steps minimum gear combination, then perform (12), otherwise perform (15);
Be (12) that the gear of P1 arranges from small to large according to action frequency respectively by power, by power be that the gear of P2 arranges from small to large according to action frequency respectively ..., be that the gear of Pn arranges from small to large according to action frequency respectively by power;
(13) from the gear of action least number of times, select X1 power to be the gear of P1 successively, X2 power is the gear of P2 ..., Xn power is the gear of Pn;
(14) export the gear chosen to complete power adjustments, the action frequency of these gears is added one simultaneously;
(15) cannot power adjustments be completed, report to the police.
Technical scheme of the present invention has following beneficial effect:
During operating personnel's regulating power, only need provide set value of the power, select which gear without the need to considering, thus significantly reduce the work load of operating personnel; For the gear that power is identical, its action frequency is balanced, avoids some contactor because of action and reaches serviceable life too frequently and too early; Time in process of the test as there is the faults such as contactor is failure to actuate, blower fan does not turn, sludge water treatment, can automatically disconnect out of order gear and being switched to trouble-free gear, thus at utmost normally the carrying out of warranty test.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of the gear control method of the dry type load device described in the embodiment of the present invention.
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.
A gear control method for dry type load device, comprises
Find out the step that power summation equals the gear combination of set value of the power;
According to the failure condition of dry type load device, from the above-mentioned gear combination found out, reject the step of the gear combination that cannot realize because of fault;
And
The gear two indices that the numbers of gear steps operated as required is minimum and prioritizing selection action frequency is minimum, picks out an optimal value, for the step finally exported from remaining gear combination.
Wherein, find out the step that power summation equals the gear combination of set value of the power, the concrete employing method of exhaustion finds out the gear combination that power summation equals set value of the power.
As shown in Figure 1, the gear control method of dry type load device adopts the concrete steps of the method for exhaustion to comprise:
(1) exhaustive all gears combination, that is: being select X1 gear the gear of P1, X1≤A1 from power, is select X2 gear the gear of P2 from power, X2≤A2,, be select Xn gear the gear of Pn, Xn≤An from power, be labeled as (X1, X2 ..., Xn).Gear combination adds up to:
wherein A1, A2 ..., An is respectively gear that power is P1, power is P2 gear ..., power is the sum of the gear of Pn;
(2) calculate each gear combination (X1, X2 ..., Xn) power summation: P=X1 × P1+X2 × P2+ ... + Xn × Pn;
(3) exhaustive all gears are out combined (X1, X2 ..., Xn) and power summation P save as a list, i.e. gear Assembly Listing;
(4) adopt loop structure read in above-mentioned gear Assembly Listing gear combination (X1, X2 ..., Xn).If cycle index is greater than gear combine total F, just perform (11), otherwise perform (5);
(5) select from gear Assembly Listing next gear combine (X1, X2 ..., Xn) and corresponding power summation P;
(6) if the power summation P of the gear combination selected in (5) is not equal to set value of the power, just return (4),
The gear (7) reading selection in (5) combines (X1, X2 ..., Xn).The quantity of statistics non-fault gear, show that power be the quantity of the non-fault gear of P1 is Y1, power is the quantity of the non-fault gear of P2 is Y2 ..., power is the quantity of the non-fault gear of Pn is Yn.If the gear combination selected (5) (X1, X2 ..., Xn) and do not meet relational expression: X1≤Y1, X2≤Y2 ..., Xn≤Yn, just returns (4), otherwise performs (8);
(8) calculate from the current gear combination (X1 come into operation
0, X2
0..., Xn
0) change to select in (5) gear combination (X1, X2 ..., Xn) and the required numbers of gear steps operated: M=|X1
0-X1|+|X2
0-X2|+ ... + | Xn
0-Xn|;
(9), compared with the gear preserved with a upper cycle combines, if need the numbers of gear steps M of operation not less, just return (4), otherwise perform (10);
(10) preserve gear combination selected in (5), waiting until next cycle compares, and returns (4);
(11) if found meet set value of the power and needs operation numbers of gear steps minimum gear combination, then perform (12), otherwise perform (15);
Be (12) that the gear of P1 arranges from small to large according to action frequency respectively by power, by power be that the gear of P2 arranges from small to large according to action frequency respectively ..., be that the gear of Pn arranges from small to large according to action frequency respectively by power;
(13) from the gear of action least number of times, select X1 power to be the gear of P1 successively, X2 power is the gear of P2 ..., Xn power is the gear of Pn;
(14) export the gear chosen to complete power adjustments, the action frequency of these gears is added one simultaneously;
(15) cannot power adjustments be completed, report to the police.
The object of above-mentioned steps (1) ~ (7) adopts the method for exhaustion to find out the gear combination that power summation equals set value of the power.
The object of above-mentioned steps (8) is the failure condition according to dry type load device, the gear combination that those cannot realize because of fault is rejected from the gear combination found out, the object of step (10) is the index realizing " numbers of gear steps of needs operation is minimum ", the object of step (13) is the index realizing " gear that prioritizing selection action frequency is minimum ", and the order of step (8), step (10) and step (13) these three steps can be exchanged simultaneously.
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 (3)
1. a gear control method for dry type load device, is characterized in that, comprises
Find out the step that power summation equals the gear combination of set value of the power;
According to the failure condition of dry type load device, from the above-mentioned gear combination found out, reject the step of the gear combination that cannot realize because of fault;
And
The gear two indices that the numbers of gear steps operated as required is minimum and prioritizing selection action frequency is minimum, picks out an optimal value, for the step finally exported from remaining gear combination.
2. the gear control method of dry type load device according to claim 1, is characterized in that, finds out the step that power summation equals the gear combination of set value of the power, and the concrete employing method of exhaustion finds out the gear combination that power summation equals set value of the power.
3. the gear control method of dry type load device according to claim 2, is characterized in that, the method adopts the concrete steps of the method for exhaustion to comprise:
(1) that is: exhaustive all gears combination is select X1 gear the gear of P1, X1≤A1 from power, be select X2 gear the gear of P2, X2≤A2 from power ... be select Xn gear the gear of Pn, Xn≤An from power, gear combination adds up to:
wherein A1, A2 ... An is respectively gear that power is P1, power is the gear of P2 ... power is total number of the gear of Pn;
(2) the power summation of each gear combination is calculated;
(3) by exhaustive out gear combination and power summation save as a list, i.e. gear Assembly Listing;
(4) select gear combination in above-mentioned gear Assembly Listing, perform cycle calculations and find out and meet set value of the power and the minimum gear of the numbers of gear steps of needs operation combines; If the number of times of cycle calculations is greater than gear combination sum, just performs (12), otherwise perform (5);
(5) from gear Assembly Listing, next gear is selected to combine, and the power summation that the gear combination selected in reading is corresponding;
(6) if the power summation of the gear combination selected in (5) is not equal to set value of the power, just return (4),
(7) if deposit the gear combination selected in (5) to there is fault, this gear is combined cannot be realized, and just returns (4), otherwise performs (8);
(8) numbers of gear steps changing to the required operation of gear combination selected (5) from current gear combination of having come into operation is calculated;
(9), compared with the gear preserved with a upper cycle combines, if need the numbers of gear steps of operation not less, just return (4), otherwise perform (10);
(10) preserve gear combination selected in (5), waiting until next cycle compares, and returns (4);
(11) if found meet set value of the power and needs operation numbers of gear steps minimum gear combination, then perform (12), otherwise perform (15);
Be (12) that the gear of P1 arranges from small to large according to action frequency respectively by power, by power be that the gear of P2 arranges from small to large according to action frequency respectively ..., be that the gear of Pn arranges from small to large according to action frequency respectively by power;
(13) from the gear of action least number of times, select X1 power to be the gear of P1 successively, X2 power is the gear of P2 ..., Xn power is the gear of Pn;
(14) export the gear chosen to complete power adjustments, the action frequency of these gears is added one simultaneously;
(15) cannot power adjustments be completed, report to the police.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770678.2A CN105319504B (en) | 2015-11-11 | 2015-11-11 | The gear control method of dry type load device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510770678.2A CN105319504B (en) | 2015-11-11 | 2015-11-11 | The gear control method of dry type load device |
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| CN105319504A true CN105319504A (en) | 2016-02-10 |
| CN105319504B CN105319504B (en) | 2018-05-18 |
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| CN201510770678.2A Expired - Fee Related CN105319504B (en) | 2015-11-11 | 2015-11-11 | The gear control method of dry type load device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110006096A (en) * | 2019-04-15 | 2019-07-12 | 廊坊新奥泛能网络科技服务有限公司 | Choosing method, device and the electronic equipment of heating machine set |
| CN113341860A (en) * | 2021-05-18 | 2021-09-03 | 中国航发湖南动力机械研究所 | General type electric power loading device and adopt its aeroengine test bench |
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| CN101194174A (en) * | 2005-06-08 | 2008-06-04 | 株式会社兴研 | Load calculation control method and apparatus |
| CN201698006U (en) * | 2010-04-30 | 2011-01-05 | 重庆多朋科技有限公司 | Automatic adjustable resistive electronic load |
| CN103383434A (en) * | 2013-07-18 | 2013-11-06 | 广东福德电子有限公司 | Intelligent load resistance box |
| CN204129185U (en) * | 2014-10-14 | 2015-01-28 | 陕西艾特隆技术有限公司 | AC load |
Non-Patent Citations (1)
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006096A (en) * | 2019-04-15 | 2019-07-12 | 廊坊新奥泛能网络科技服务有限公司 | Choosing method, device and the electronic equipment of heating machine set |
| CN110006096B (en) * | 2019-04-15 | 2021-09-10 | 廊坊新奥泛能网络科技服务有限公司 | Heating unit selection method and device and electronic equipment |
| CN113341860A (en) * | 2021-05-18 | 2021-09-03 | 中国航发湖南动力机械研究所 | General type electric power loading device and adopt its aeroengine test bench |
| CN113341860B (en) * | 2021-05-18 | 2022-08-02 | 中国航发湖南动力机械研究所 | General type electric power loading device and adopt its aeroengine test bench |
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| CN105319504B (en) | 2018-05-18 |
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