CN102140966B - Method and device for regulating load - Google Patents
Method and device for regulating load Download PDFInfo
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- CN102140966B CN102140966B CN 201010605158 CN201010605158A CN102140966B CN 102140966 B CN102140966 B CN 102140966B CN 201010605158 CN201010605158 CN 201010605158 CN 201010605158 A CN201010605158 A CN 201010605158A CN 102140966 B CN102140966 B CN 102140966B
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- 239000000446 fuel Substances 0.000 claims description 6
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- 238000010586 diagram Methods 0.000 description 4
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Abstract
The invention provides a method and a device for regulating load. The method comprises the following steps of: determining a current regulation mode, and acquiring the rotation speed change parameter in the current regulation mode, wherein the rotation speed change parameter is frequency drop or rotation speed drop; acquiring a regulation threshold value according to the rotation speed change parameter; regulating the load according to the regulation threshold value and the current rotation speed parameter, wherein when the rotation speed change parameter is the frequency drop, the rotation speed parameter is frequency; and when the rotation speed change parameter is the rotation speed drop, the rotation speed parameter is rotation speed. In the embodiment of the invention, the equipment is simple, the parameter is stable, and the loading condition can be reflected accurately.
Description
Technical field
The present invention relates to the load control technique, relate in particular to a kind of load regulate and control method and device.
Background technique
Along with the hybrid power supply technology, particularly storage battery and generator set are (hereinafter to be referred as: the scheme that unit) powers to the load in turn in the application of communication base station with popularize, in order to save fuel oil and to shorten the unit operation time, reduce wearing and tearing and the maintenance expenses of unit, wish that all unit is not transshipping under the flame-out prerequisite, the charge rate of allowing with the storage battery maximum is to charge in batteries.In order to realize above-mentioned target, need unit that its load is regulated and control.Prior art one is to detect the electric current of unit output, according to the electric current regulation and control load of output; Prior art two is to detect the active power of unit output, carries out the load regulation and control according to active power.
The load current of prior art one basis can not reflect that the actual band of unit carries, and exists error; The complex structure that prior art two needs when adopting active power, and along with the increase of using wearing and tearing, rated output power descends gradually, makes specified active power also descend thereupon, can not reflect simultaneously that with fixing active power the band of new machine and old machine carries situation.
Summary of the invention
The embodiment of the invention provides a kind of load regulate and control method and device, and the band of unit carries the problem of situation in order to solve can not accurately reflecting of existing in the prior art.
The embodiment of the invention provides a kind of load regulate and control method, comprising:
Determine current control methods;
Obtain the rotation speed change parameter under the current control methods, described rotation speed change parameter is that frequency is fallen or rotating speed falls;
Obtain the regulation and control threshold value according to described rotation speed change parameter;
According to described regulation and control threshold value and current rotary speed parameter, load is regulated and control, wherein, when described rotation speed change parameter is frequency when falling, described rotary speed parameter is frequency, when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
The embodiment of the invention provides a kind of load regulating controller, comprising:
Determination module is used for determining current control methods;
The rotation speed change parameter obtains module, is used for the rotation speed change parameter under the current control methods of acquisition, and described rotation speed change parameter is that frequency is fallen or rotating speed falls;
The regulation and control threshold value obtains module, is used for obtaining the regulation and control threshold value according to described rotation speed change parameter;
The regulation and control module is used for according to described regulation and control threshold value and current rotary speed parameter, and load is regulated and control, wherein, when described rotation speed change parameter is frequency when falling, described rotary speed parameter is frequency, when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
As shown from the above technical solution, load regulate and control method and the device of the embodiment of the invention, by selecting frequency fall or rotating speed fall as regulation and control foundation, because frequency is fallen or rotating speed falls the band that can reflect equipment and carries situation, and the band that can reflect new machine carries situation, the band that can reflect old machine again carries situation, therefore can reflect exactly that the band of unit carries situation.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technological scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the method flow schematic representation of first embodiment of the invention;
Fig. 2 is frequency and the power relation performance diagram of generator set in the embodiment of the invention;
Fig. 3 is rotating speed and the power relation performance diagram of generator set in the embodiment of the invention;
Fig. 4 is the method flow schematic representation of second embodiment of the invention;
Fig. 5 is the system signal schematic representation of second embodiment of the invention correspondence;
Fig. 6 is for beginning to regulate and control preceding schematic flow sheet in the second embodiment of the invention;
Fig. 7 regulates and control schematic flow sheet in the second embodiment of the invention;
Fig. 8 is the schematic flow sheet of step 72 in the embodiment of the invention;
Fig. 9 is the schematic flow sheet of step 73 in the embodiment of the invention;
Figure 10 is the apparatus structure schematic representation of third embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technological scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiments.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment who obtains under the creative work prerequisite.
Fig. 1 is the method flow schematic representation of first embodiment of the invention, comprising:
Step 11: determine current control methods.
The control methods of present embodiment can be maximum power point regulation and control or the regulation and control of optimum oil consumption point, and the maximum power point regulation and control refer to that the output of power supply unit can be peak output, and usually, peak output is 110% of rated power commonly used; Optimum oil consumption point regulation and control refer to the ratio maximum of output power and fuel consumption, usually, when output power for use always rated power 75% the time, be the optimum oil consumption point.Wherein, this power supply unit can be generator set or motor.
Step 12: obtain the rotation speed change parameter under the current control methods, described rotation speed change parameter is that frequency is fallen or rotating speed falls.
Wherein, Fig. 2 is frequency and the power relation performance diagram of generator set in the embodiment of the invention, and Fig. 3 is rotating speed and the power relation performance diagram of generator set in the embodiment of the invention.Referring to Fig. 2 and Fig. 3, rotating speed and frequency are the parameters of reflection unit or engine speed characteristic, are the characteristic manner difference, and one is the electrical characterization mode, and one is the mechanical characterization mode, thereby two curve basically identicals.For for simplicity, will be frequency with the rotary speed parameter below, the rotation speed change parameter be that frequency is reduced to example and described, and can consult and carry out for the mode that rotating speed falls.
Particularly, step 12 can followingly realize, for example:
If described current control methods are the maximum power point regulation and control, obtain difference on the frequency or speed discrepancy that power supply unit drives first fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described first fictitious load be described power supply unit rated power commonly used 110%;
Perhaps,
If described current control methods are the regulation and control of optimum oil consumption point, obtain difference on the frequency or speed discrepancy that power supply unit drives second fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described second fictitious load is described power supply unit fuel consumption and the ratio of unit time output power output power hour.
Step 13: obtain the regulation and control threshold value according to described rotation speed change parameter;
For example, if described current control methods are the maximum power point regulation and control, then this step 13 can comprise:
Obtain the no-load speed parameter, described no-load speed parameter is idling frequency or no-load speed;
According to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, and first threshold is greater than the 3rd threshold value.
Again for example, if described current control methods are the regulation and control of optimum oil consumption point, this step 13 can comprise:
Obtain the no-load speed parameter, described no-load speed parameter is idling frequency or no-load speed;
According to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, obtain the 4th threshold value according to described the 3rd threshold value and the 3rd parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, first threshold is greater than the 3rd threshold value, and the 3rd threshold value is greater than the 4th threshold value.
Step 14: according to described regulation and control threshold value and current rotary speed parameter, load is regulated and control, wherein, when described rotation speed change parameter is frequency when falling, described rotary speed parameter is frequency, and when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
For example, if described current control methods are the maximum power point regulation and control, then this step 14 can comprise:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter less than the 3rd threshold value, is then reported to the police.
Again for example, if described current control methods are the regulation and control of optimum oil consumption point, this step 14 can comprise:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter more than or equal to the 4th threshold value and less than the 3rd threshold value, is then reported to the police;
If current rotary speed parameter less than time of the 4th threshold value greater than default time threshold, then sub-switching operation is taked in load.
Present embodiment falls by selecting frequency or rotating speed falls as the regulation and control foundation, because frequency is fallen or rotating speed falls the band that can reflect power supply unit and carries situation, and the band that can reflect new machine carries situation, the band that can reflect old machine again carries situation, obtaining the method that frequency is fallen or rotating speed falls only needs simple structure, therefore can reflect that the band of new machine and old machine carries situation and simple in structure.
Fig. 4 is the method flow schematic representation of second embodiment of the invention, and Fig. 5 is the system signal schematic representation of second embodiment of the invention correspondence, and present embodiment comprises:
Step 41: determine current control methods.
Present embodiment can be divided into maximum power point regulation and control and the regulation and control of calculated fuel consumption point, and referring to Fig. 3, current control methods can be by " control methods selection " this signaling line input.
Step 42: the frequency that obtains under the current control methods is fallen.
Present embodiment is reduced to example with frequency, falls and can consult and carry out for rotating speed.
Regulate and control for maximum power point: make unit drive the fictitious load of 110% rated power commonly used, the frequency of band being carried front and back is subtracted each other, and difference is fallen for frequency.
Regulate and control for optimum oil consumption point: make unit drive the fictitious load of optimum oil consumption point, the frequency of band being carried front and back is subtracted each other, and difference is fallen for frequency.
Above-mentioned is to obtain frequency with the mode that detects to fall, and for the maximum power point regulation and control, also can determine that frequency falls according to the rank of unit, and namely referring to table 1, the corresponding different frequencies of default different ranks are fallen, and can determine that by tabling look-up frequency falls.
Table 1
| The unit performance grade | G1 | G2 | G3 |
| Frequency is fallen | 8 | 5 | 3 |
Step 43: fall according to frequency and to obtain threshold value.
The maximum power point regulation and control comprise first threshold FA, the second threshold value FB and the 3rd threshold value FC.
The regulation and control of optimum oil consumption point comprise first threshold FA, the second threshold value FB, the 3rd threshold value FC and the 4th threshold value FC1.
The calculation method of above-mentioned threshold value is as follows:
FA＝F0-δ，FB＝FA+k1*δ，FC＝FA-k2*δ，FC1＝FC-k3*δ；
Wherein, F0 is idling frequency, and k1, k2, k3 are predefined coefficient, and scope is between 0 and 0.1, and δ is that frequency is fallen.
After obtaining above-mentioned threshold value, then can begin regulation and control.In addition, the present invention can also carry out current detecting before beginning regulation and control, in order to just regulate and control when power supply unit is worked.For example, can substitute above-mentioned step 41-43 with step as shown in Figure 6.Flow process before beginning to regulate and control can be referring to Fig. 6, and Fig. 6 is the schematic flow sheet before beginning to regulate and control in the second embodiment of the invention, comprising:
Step 61: judge whether electric current I is 0, if, execution in step 62, otherwise execution in step 66.
Step 62: set or refresh F0.
Wherein, when detecting first, can set an initial value, for example, F0 is set at 52.3Hz.Afterwards, when detecting again, checkout value changes, as is 52.5Hz, then F0 is refreshed to be 52.5Hz.
Step 63: judge whether to be the regulation and control of optimum oil consumption point, if, execution in step 65, otherwise, execution in step 64.
Step 64: calculate FA, FB, FC according to above-mentioned formula.
Step 65: calculate FA, FB, FC, FC1 according to above-mentioned formula.
Wherein, the calculation method of FA, FB, FC, FC1 can be referring to step 43.
Step 66: begin regulation and control by original threshold value.
Because this moment, electric current was not 0, showed in operation, can regulate and control.
Step 44: regulate and control according to the regulation and control threshold value.
The regulation and control flow process can be referring to Fig. 7, and Fig. 7 comprises for regulating and control schematic flow sheet in the second embodiment of the invention:
Step 71: judge whether to be the regulation and control of optimum oil consumption point, if, execution in step 72, otherwise, execution in step 73, when being the maximum power point regulation and control, execution in step 73.
Step 72: regulate and control according to FA, FB, FC, FC1.
Step 73: regulate and control according to FA, FB, FC.
Wherein, the flow process of step 72 can be referring to Fig. 8, and Fig. 8 is the schematic flow sheet of step 72 in the embodiment of the invention, comprising:
Step 801: whether judge current frequency smaller or equal to FB, if, execution in step 803, otherwise execution in step 802.
Current frequency can be passed through unit voltage/tach signal line and obtain.
Step 802: load.
Step 803: whether judge current frequency smaller or equal to FA, if, execution in step 805, otherwise execution in step 804.
Step 804: stop to load.
Step 805: whether judge current frequency smaller or equal to FC, if, execution in step 807, otherwise execution in step 806.
Step 806: unloading.
Step 807: whether judge current frequency smaller or equal to FC1, if, execution in step 809, otherwise execution in step 808.
Step 808: report to the police.
Step 809: judge whether to delay time T1, if, execution in step 810, otherwise repeated execution of steps 809.
Wherein, T1 can set according to actual conditions, for example elects the value between 5～10 seconds as.
Step 810: separating brake.Be disconnecting consumers and being connected of power supply unit.
Different with optimum oil consumption point regulation and control scheme shown in Figure 8 is, the maximum power point regulation and control do not need FC1, and all the other are similar, and namely referring to Fig. 9, Fig. 9 is the schematic flow sheet of step 73 in the embodiment of the invention, comprising:
Step 901: whether judge current frequency smaller or equal to FB, if, execution in step 903, otherwise execution in step 902.
Current frequency can be passed through unit voltage/tach signal line and obtain.
Step 902: load.
Step 903: whether judge current frequency smaller or equal to FA, if, execution in step 905, otherwise execution in step 904.
Step 904: stop to load.
Step 905: whether judge current frequency smaller or equal to FC, if, execution in step 907, otherwise execution in step 906.
Step 906: unloading.
Step 907: judge whether to delay time T1, if, execution in step 909, otherwise execution in step 908.
Wherein, T1 can set according to actual conditions, for example elects the value between 5～10 seconds as.
Step 908: report to the police.Repeated execution of steps 907 afterwards.
Step 909: separating brake.
Present embodiment according to frequency fall/rotating speed falls and determines the regulation and control threshold value, can be so that detecting method equipment be simple, cost is low, accurate and effective, when motor after long-time running wearing and tearing rated output power descends, the control threshold value does not need to change thereupon, still can normally control.Present embodiment can provide two kinds of regulation and control scheme, guarantee that unit charges a battery with maximum charge power, finish discharge back battery recharge process with the shortest time, both given full play to the usefulness of unit, realize purpose of energy saving thereby shortened the unit operation time again.
Figure 10 is the apparatus structure schematic representation of third embodiment of the invention, comprises that determination module 101, rotation speed change parameter obtain module 102, the regulation and control threshold value obtains module 103 and regulation and control module 104; Determination module 101 is used for determining current control methods; The rotation speed change parameter obtains module 102 for the rotation speed change parameter that obtains under the current control methods, and described rotation speed change parameter is that frequency is fallen or rotating speed falls; The regulation and control threshold value obtains module 103 and is used for obtaining the regulation and control threshold value according to described rotation speed change parameter; Regulation and control module 104 is used for according to described regulation and control threshold value and current rotary speed parameter, load is regulated and control, wherein, when described rotation speed change parameter is that frequency is when falling, described rotary speed parameter is frequency, and when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
Wherein, described rotation speed change parameter obtains module 102 and specifically is used for: if described current control methods are the maximum power point regulation and control, obtain difference on the frequency or speed discrepancy that described power supply unit drives first fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described first fictitious load be described power supply unit rated power commonly used 110%; Perhaps, if described current control methods are the regulation and control of optimum oil consumption point, obtain difference on the frequency or speed discrepancy that described power supply unit drives second fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described second fictitious load is described power supply unit fuel consumption and the ratio of unit time output power output power hour.
Wherein, when described current control methods are the maximum power point regulation and control, this regulation and control threshold value obtains module 103 can comprise first module 1031 and second unit 1032, and first module 1031 is used for obtaining the no-load speed parameter, and described no-load speed parameter is idling frequency or no-load speed; If it is the maximum power point regulation and control that second unit 1032 is used for current control methods, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, and first threshold is greater than the 3rd threshold value.At this moment, if regulation and control module 104 specifically is used for current rotary speed parameter more than or equal to second threshold value, then offered load; If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value; If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load; If current rotary speed parameter less than the 3rd threshold value, is then reported to the police.
Perhaps, when described current control methods are the regulation and control of optimum oil consumption point, this regulation and control threshold value obtains module 103 and comprises first module 1031 and the 3rd unit 1033, and first module 1031 is used for obtaining the no-load speed parameter, and described no-load speed parameter is idling frequency or no-load speed; If it is the regulation and control of optimum oil consumption point that the 3rd unit 1033 is used for current control methods, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, obtain the 4th threshold value according to described the 3rd threshold value and the 3rd parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, first threshold is greater than the 3rd threshold value, and the 3rd threshold value is greater than the 4th threshold value.At this moment, if regulation and control module 104 specifically is used for current rotary speed parameter more than or equal to second threshold value, then offered load; If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value; If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load; If current rotary speed parameter more than or equal to the 4th threshold value and less than the 3rd threshold value, is then reported to the police; If current rotary speed parameter less than time of the 4th threshold value greater than default time threshold, then sub-switching operation is taked in load.
Wherein, above-mentioned first module 1031 is concrete to be used for being set at initial value when initial, when detecting again, refreshes after detected value changes.
This equipment can be for generator set, also can be motor of driving non-power generating equipment etc.
Present embodiment falls by selecting frequency or rotating speed falls as the regulation and control foundation, because frequency is fallen or rotating speed falls the band that can reflect equipment and carries situation, and the band that can reflect new machine carries situation, the band that can reflect old machine again carries situation, obtaining the method that frequency is fallen or rotating speed falls only needs simple structure, therefore can reflect that the band of new machine and old machine carries situation and simple in structure.
Be understandable that the reference mutually of the correlated characteristic in said method and the equipment.In addition, " first " in above-described embodiment, " second " etc. are for each embodiment of differentiation, and do not represent each embodiment's quality.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of programming instruction, aforesaid program can be stored in the computer read/write memory medium, this program is carried out the step that comprises said method embodiment when carrying out; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CD.
It should be noted that at last: above embodiment only in order to technological scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technological scheme that aforementioned each embodiment puts down in writing, and perhaps part technical characteristics wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technological scheme.
Claims (13)
1. a load regulate and control method is characterized in that, comprising:
Determine current control methods;
Obtain the rotation speed change parameter under the current control methods, described rotation speed change parameter is that frequency is fallen or rotating speed falls;
Obtain the regulation and control threshold value according to described rotation speed change parameter;
According to described regulation and control threshold value and current rotary speed parameter, load is regulated and control, wherein, when described rotation speed change parameter is frequency when falling, described rotary speed parameter is frequency, when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
2. method according to claim 1 is characterized in that, the rotation speed change parameter under the current control methods of described acquisition comprises:
If described current control methods are the maximum power point regulation and control, obtain difference on the frequency or speed discrepancy that power supply unit drives first fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described first fictitious load be described power supply unit rated power commonly used 110%.
3. method according to claim 1 is characterized in that, the rotation speed change parameter under the current control methods of described acquisition comprises:
If described current control methods are the regulation and control of optimum oil consumption point, obtain difference on the frequency or speed discrepancy that power supply unit drives second fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described second fictitious load is described power supply unit fuel consumption and the ratio of unit time output power output power hour.
4. method according to claim 1 and 2 is characterized in that, and is described according to described rotation speed change parameter acquisition regulation and control threshold value, comprising:
Obtain the no-load speed parameter, described no-load speed parameter is idling frequency or no-load speed;
If current control methods are the maximum power point regulation and control, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, and first threshold is greater than the 3rd threshold value.
5. method according to claim 4 is characterized in that, describedly according to described regulation and control threshold value and current rotary speed parameter load is regulated and control, and comprising:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter less than the 3rd threshold value, is then reported to the police.
6. according to claim 1 or 3 described methods, it is characterized in that, described according to described rotation speed change parameter acquisition regulation and control threshold value, comprising:
Obtain the no-load speed parameter, described no-load speed parameter is idling frequency or no-load speed;
If current control methods are the regulation and control of optimum oil consumption point, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, obtain the 4th threshold value according to described the 3rd threshold value and the 3rd parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, first threshold is greater than the 3rd threshold value, and the 3rd threshold value is greater than the 4th threshold value.
7. method according to claim 6 is characterized in that, describedly according to described regulation and control threshold value and current rotary speed parameter load is regulated and control, and comprising:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter more than or equal to the 4th threshold value and less than the 3rd threshold value, is then reported to the police;
If current rotary speed parameter less than time of the 4th threshold value greater than default time threshold, then sub-switching operation is taked in load.
8. a load regulating controller is characterized in that, comprising:
Determination module is used for determining current control methods;
The rotation speed change parameter obtains module, is used for the rotation speed change parameter under the current control methods of acquisition, and described rotation speed change parameter is that frequency is fallen or rotating speed falls;
The regulation and control threshold value obtains module, is used for obtaining the regulation and control threshold value according to described rotation speed change parameter;
The regulation and control module is used for according to described regulation and control threshold value and current rotary speed parameter, and load is regulated and control, wherein, when described rotation speed change parameter is frequency when falling, described rotary speed parameter is frequency, when described rotation speed change parameter is rotating speed when falling, described rotary speed parameter is rotating speed.
9. device according to claim 8 is characterized in that, described rotation speed change parameter obtains module and specifically is used for:
If described current control methods are the maximum power point regulation and control, obtain difference on the frequency or speed discrepancy that power supply unit drives first fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described first fictitious load be described power supply unit rated power commonly used 110%;
Perhaps,
If described current control methods are the regulation and control of optimum oil consumption point, obtain difference on the frequency or speed discrepancy that described power supply unit drives second fictitious load front and back, fall as described frequency respectively or rotating speed falls, the power of described second fictitious load is described power supply unit fuel consumption and the ratio of unit time output power output power hour.
10. device according to claim 8 is characterized in that, described regulation and control threshold value obtains module and comprises:
First module is used for obtaining the no-load speed parameter, and described no-load speed parameter is idling frequency or no-load speed;
Unit second, be the maximum power point regulation and control if be used for current control methods, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, and first threshold is greater than the 3rd threshold value.
11. device according to claim 10 is characterized in that, described regulation and control module specifically is used for:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter less than the 3rd threshold value, is then reported to the police.
12. device according to claim 8 is characterized in that, described regulation and control threshold value obtains module and comprises:
First module is used for obtaining the no-load speed parameter, and described no-load speed parameter is idling frequency or no-load speed;
Unit the 3rd, be that optimum oil consumption point is regulated and control if be used for current control methods, according to described no-load speed parameter and described rotation speed change parameter, obtain first threshold, obtain second threshold value according to described first threshold and first parameter preset and described rotation speed change parameter, obtain the 3rd threshold value according to described first threshold and second parameter preset and described rotation speed change parameter, obtain the 4th threshold value according to described the 3rd threshold value and the 3rd parameter preset and described rotation speed change parameter, wherein, second threshold value is greater than first threshold, first threshold is greater than the 3rd threshold value, and the 3rd threshold value is greater than the 4th threshold value.
13. device according to claim 12 is characterized in that, described regulation and control module specifically is used for:
If current rotary speed parameter is more than or equal to second threshold value, then offered load;
If current rotary speed parameter then stops offered load more than or equal to first threshold and less than second threshold value;
If current rotary speed parameter more than or equal to the 3rd threshold value and less than first threshold, then unloads load;
If current rotary speed parameter more than or equal to the 4th threshold value and less than the 3rd threshold value, is then reported to the police;
If current rotary speed parameter less than time of the 4th threshold value greater than default time threshold, then sub-switching operation is taked in load.
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| CN 201010605158 CN102140966B (en) | 2010-12-16 | 2010-12-16 | Method and device for regulating load |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010605158 CN102140966B (en) | 2010-12-16 | 2010-12-16 | Method and device for regulating load |
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| CN102140966A CN102140966A (en) | 2011-08-03 |
| CN102140966B true CN102140966B (en) | 2013-09-25 |
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| CN 201010605158 Expired - Fee Related CN102140966B (en) | 2010-12-16 | 2010-12-16 | Method and device for regulating load |
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Citations (6)
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| CN1897451A (en) * | 2005-07-15 | 2007-01-17 | 通用电气公司 | Methods and systems for operating engine generator sets |
| CN101013873A (en) * | 2007-02-16 | 2007-08-08 | 吴德峰 | Converse speed regulation apparatus of generator and control method |
| JP4148037B2 (en) * | 2003-06-18 | 2008-09-10 | 富士電機リテイルシステムズ株式会社 | Banknote transport unit |
| CN201294478Y (en) * | 2008-10-16 | 2009-08-19 | 郑坚炼 | Application system for dual-speed diesel generator set |
| CN101826833A (en) * | 2009-03-02 | 2010-09-08 | 上海恒锦动力科技有限公司 | Automatic frequency-conversion energy-saving electronic speed regulation control system |
| JP5018285B2 (en) * | 2007-07-06 | 2012-09-05 | 株式会社Ｉｈｉ | Belt tensioning device and conveying device |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04148037A (en) * | 1990-10-09 | 1992-05-21 | Kubota Corp | Inverter type engine generator |
| JPH0518285A (en) * | 1991-07-05 | 1993-01-26 | Kubota Corp | Inverter type engine generator |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4148037B2 (en) * | 2003-06-18 | 2008-09-10 | 富士電機リテイルシステムズ株式会社 | Banknote transport unit |
| CN1897451A (en) * | 2005-07-15 | 2007-01-17 | 通用电气公司 | Methods and systems for operating engine generator sets |
| CN101013873A (en) * | 2007-02-16 | 2007-08-08 | 吴德峰 | Converse speed regulation apparatus of generator and control method |
| JP5018285B2 (en) * | 2007-07-06 | 2012-09-05 | 株式会社Ｉｈｉ | Belt tensioning device and conveying device |
| CN201294478Y (en) * | 2008-10-16 | 2009-08-19 | 郑坚炼 | Application system for dual-speed diesel generator set |
| CN101826833A (en) * | 2009-03-02 | 2010-09-08 | 上海恒锦动力科技有限公司 | Automatic frequency-conversion energy-saving electronic speed regulation control system |
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| CN102140966A (en) | 2011-08-03 |
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