CN102232268A - Method, device for realizing energy saving control of generating system, and generating system - Google Patents
Method, device for realizing energy saving control of generating system, and generating system Download PDFInfo
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- 238000010248 power generation Methods 0.000 claims description 29
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- 239000000446 fuel Substances 0.000 description 17
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
- H02P9/48—Arrangements for obtaining a constant output value at varying speed of the generator, e.g. on vehicle
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Abstract
Provided are a method, a device and a system for realizing rotating speed control of a generator set, wherein the method comprises the steps of: obtaining a lowest oil consumption curve of the generator set; detecting a current output power of the generator set, and finding the rotating speed of the generator set corresponding to the output power by using the lowest oil consumption curve; and adjusting the rotating speed of the generator set by using the found rotating speed corresponding to the output power. By adopting the method, the device and the system provided in an embodiment of the present invention, effects to energy saving performance of the system which are caused by uncertain factors of the generator set, such as products model, property aging, etc., can be effectively reduced, thus the generator set can operate in a reasonable and oil-saving rotating speed state, thereby maximizing the oil-saving effect.
Description
Technical Field
The invention relates to the technical field of control, in particular to a method and a device for realizing energy-saving control of a power generation system and the power generation system.
Background
The diesel generator set is a small power generating device, and generally refers to a power machine which takes diesel oil and the like as fuel and takes a diesel generator as a prime mover to drive the generator to generate power. When the diesel generating set operates, the fuel consumption rate (fuel consumed by unit power generation) of the diesel generating set is increased along with the reduction of the load, for example, the fuel consumption rate of 10% load of the naturally aspirated small diesel generating set can reach more than 3 times of the rated fuel consumption rate, so that the reduction of the fuel consumption of a low-load scene of the diesel generating set is significant.
At present, there is a scheme for reducing oil consumption by speed regulation along with load, applied to a conventional generator set, as shown in fig. 1, the working principle of which is mainly as follows: by detecting the load current magnitude, converting the load current magnitude into a current signal of an analog magnitude through a load detector, and reading in the signal through an automatic speed regulation controller; and then comparing the read signal with the rated current of the generator set by the automatic controller, adjusting a corresponding output analog quantity current signal according to the load size, controlling a variable frequency compensator to adjust output frequency and voltage, controlling an electronic actuator to change the oil supply quantity of the generator, changing the rotating speed of the generator and changing output power, thereby achieving the purpose of saving oil.
Although the traditional technical scheme can achieve the purpose of saving oil, the defects are also obvious:
firstly, because the generator is applied to a conventional generator set, the common conventional generator is provided with an excitation system, and because the performance of the excitation system determines that the excitation current needs to be automatically increased in order to maintain the voltage of the generator terminal unchanged when the rotating speed is reduced, the lower the rotating speed is, the larger the excitation current is, and the higher the temperature rise of a rotor is; therefore, when the generator is applied to a conventional generator set for speed regulation and oil saving, the risk of burning the rotor winding of the generator is high; secondly, because the output of the conventional generator set is alternating current, in order to keep the generator set at the original frequency after speed regulation, a frequency conversion compensator is required to be adopted to regulate the output frequency and voltage in the scheme, the frequency conversion compensator usually has the problem of low efficiency, and if the loss caused by the frequency conversion compensator is removed, the energy-saving effect of the whole system is difficult to meet the requirement.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method, an apparatus, and a power generation system for implementing energy saving control of a power generation system, which can effectively reduce fuel consumption.
In order to solve the above problems, the technical solutions provided by the embodiments of the present invention are as follows:
a method of implementing power generation system energy conservation control, comprising:
acquiring a corresponding relation between a minimum oil consumption point of a generator under different output powers of the generator and the rotating speed of the generator at the minimum oil consumption point;
acquiring the current output power of the generator;
and inquiring the lowest oil consumption point and the corresponding standard generator rotating speed under the acquired current output power by utilizing the corresponding relation between the lowest oil consumption point and the generator rotating speed at the lowest oil consumption point, and adjusting the rotating speed of the generator to be in a state of being matched with the standard generator rotating speed.
An apparatus for implementing energy-saving control of a power generation system, comprising: the device comprises an acquisition unit, a power sensor, a speed regulation controller and a speed regulation actuator; wherein,
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point of the generator and the rotating speed of the generator under different output powers of the generator and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the generator and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the generator rotating speed at the lowest oil consumption point, and transmitting a rotating speed signal to the speed regulation actuator;
the speed regulating actuator is used for regulating the rotating speed of the generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulating controller.
A power generation system, comprising: the system comprises a permanent magnet generator, an acquisition unit, a power sensor, a speed regulation controller, a speed regulation actuator and an AC/DC rectifier; wherein,
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point and the rotating speed of the permanent magnet generator under different output powers and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the permanent magnet generator and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the permanent magnet generator rotating speed at the lowest oil consumption point, and transmitting the rotating speed signal to the speed regulation actuator;
the speed regulating actuator is used for regulating the rotating speed of the permanent magnet generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulating controller;
the AC/DC rectifier is used for converting the alternating current output by the permanent magnet generator into direct current.
A power generation system, comprising: the system comprises a permanent magnet generator, an acquisition unit, a power sensor, a speed regulation controller, a speed regulation actuator and an AC/DC rectifier; wherein,
the AC/DC rectifier is used for converting the alternating current output by the permanent magnet generator into direct current;
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point and the rotating speed of the permanent magnet generator under different output powers and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the permanent magnet generator converted by the AC/DC rectifier and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the permanent magnet generator rotating speed at the lowest oil consumption point, and transmitting the rotating speed signal to the speed regulation actuator;
the speed regulation actuator is used for regulating the rotating speed of the permanent magnet generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulation controller.
It can be seen that, by using the method, the device and the power generation system of the embodiment of the invention, the corresponding relation between the lowest oil consumption point of the generator under different output powers of the generator and the rotating speed of the generator is obtained, the rotating speed of the generator corresponding to the lowest oil consumption under the current power is found according to the current output power, and then the rotating speed of the generator is adjusted to the rotating speed corresponding to the lowest oil consumption, so that the effects of greatly saving oil and reducing consumption can be realized on the premise that the generator set does not need to contain other equipment and parameters thereof to be adjusted, and the generator set can work in a reasonable oil-saving rotating speed state, so that the oil-saving effect is maximized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a conventional system for reducing fuel consumption by speed regulation with load;
FIG. 2 is a flow chart of a method for realizing energy-saving control of a power generation system according to embodiment 1 of the present invention;
FIG. 3 is a schematic structural diagram of an apparatus for implementing energy-saving control of a power generation system in embodiment 2 of the present invention;
FIG. 4 is a schematic structural diagram of a power generation system according to embodiment 3 of the present invention;
fig. 5 is a schematic structural diagram of a power generation system according to embodiment 4 of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment 1 of the invention provides a method for realizing energy-saving control of a power generation system; in order to avoid that the temperature rise of a magnetic field of the generator is not too high when the speed of a conventional generator is regulated along with load, the method of the embodiment of the invention mainly utilizes a power generation system comprising a permanent magnet generator to realize the purposes of energy saving and low consumption; particularly, in order to make the energy-saving effect more ideal, the method of the embodiment of the invention also performs alternating current and direct current conversion operation before acquiring the output power of the generator set, thereby converting alternating current into direct current, ensuring the stability and reliability of the system and further improving the energy-saving efficiency; specifically, as shown in fig. 2, the method includes:
step 110: acquiring a corresponding relation between a minimum oil consumption point of a generator under different output powers of the generator and the rotating speed of the generator at the minimum oil consumption point;
in practical application, the corresponding relation between the lowest oil consumption point of the generator under different output powers of the generator set and the rotating speed of the generator set can be obtained by using the same principle of the traditional hill climbing method/disturbance & observation method and the two-stage method, and the specific principle is not repeated herein;
meanwhile, the generator has a rotating speed range with the lowest fuel consumption rate under a certain output power, and if the rotating speed is higher or lower than the rotating speed range, the fuel consumption rate is increased; therefore, according to the output power range of the generator set during operation, the fuel consumption rates of different rotating speeds under different output powers in the range are found out through statistics, and the corresponding relation between the lowest fuel consumption point of the generator set under different output powers and the rotating speed of the generator set can be obtained by obtaining the lowest fuel consumption rate;
the following illustrates a specific manner of obtaining the minimum fuel consumption point of the generator set in this embodiment, where the related specific parameters are only examples, and persons skilled in the art can easily understand that the related parameters may also be other parameters and values, and the embodiment is not particularly limited:
s111: presetting the output power of a generator and the rotating speed of the generator;
s112: adjusting the rotating speed in a mode of increasing the step length N, and meanwhile, counting the oil consumption of the generator at different rotating speeds;
s113: if the oil consumption is reduced and then increased at different rotating speeds, acquiring a rotating speed point with the minimum oil consumption, wherein the rotating speed point is the lowest oil consumption point of the generator under the current output power of the generator;
s114: and if the oil consumption is increased all the time, adjusting the rotating speed in a mode of decreasing the step length N, counting the oil consumption of the generator at the adjusted rotating speed, and counting and determining the rotating speed point with the minimum oil consumption as the lowest oil consumption point of the generator at the current output power of the generator.
The invention also provides another mode for acquiring the corresponding relation between the lowest oil consumption point of the generator and the rotating speed of the generator under different output powers of the generator, which comprises the following steps:
s121: determining the rotating speed change direction of the lowest oil consumption point: presetting the output power of a generator set; respectively counting oil consumption corresponding to two rotating speed points N1 and N2 with the step length of N; the rotation speed change from the rotation speed point with high fuel consumption (if N1) to the rotation speed point with low fuel consumption (if N2) is the rotation speed change direction of the lowest fuel consumption point;
s122: obtaining a rotating speed range of a lowest oil consumption point: selecting a new rotating speed point N3 along the rotating speed change direction of the lowest oil consumption point, wherein N3 is less than N2, and counting the oil consumption of the N3 rotating speed point, so that the rotating speed change range between two rotating speed points with low oil consumption can be determined to be the rotating speed range of the lowest oil consumption point;
s123: obtaining the rotating speed corresponding to the lowest oil consumption point:
A. another rotation speed point N4 is obtained by using the following formula, where N4 ═ N2- (N2-N3) × 0.618; wherein 0.618 in the formula of this embodiment is a preset value determined by multiple statistics, and other values may also be adopted in the actual operation, which is not described herein again;
B. counting the oil consumption at the N4 speed point;
C. and B, obtaining two rotation speed points with low oil consumption in the three rotation speed points (N2, N3 and N4), repeating the steps A and B until the lowest oil consumption point under different rotation speed points is obtained, wherein the rotation speed corresponding to the lowest oil consumption point is the rotation speed of the lowest oil consumption point of the generator under the current output power.
S124: and repeating the steps S121-123 to obtain the lowest oil consumption rotating speed of different output power points.
Step 120: acquiring the current output power of the generator;
in the actual operation process, a device such as a power sensor may be used to detect the current output power of the generator set in real time or periodically, and of course, other methods or devices may be used to obtain the current output power of the generator, which is not specifically limited herein; it should be noted that the current output power of the generator in this embodiment may also be obtained after the output ac power is converted into dc power, and the energy saving and low consumption performance is more stable and reliable due to the addition of the ac-dc power conversion step.
Step 130: and inquiring the lowest oil consumption point and the corresponding standard generator rotating speed under the acquired current output power by utilizing the corresponding relation between the lowest oil consumption point and the generator rotating speed at the lowest oil consumption point, and adjusting the rotating speed of the generator to be in a state of being matched with the standard generator rotating speed.
The matching state refers to the standard generator rotation speed corresponding to the lowest oil consumption point under the current power in this embodiment, and the standard generator rotation speed corresponding to the lowest oil consumption point may be a certain determined rotation speed value or a certain rotation speed range as long as the corresponding oil consumption is the minimum, which is not described herein again;
specifically, after the current output power of the generator is obtained, firstly, the steps S111 to S114 are used to query the minimum oil consumption point of the generator with the current power, then, the obtained corresponding relationship between the minimum oil consumption point of the generator with different output powers and the rotating speed of the generator is used to query the rotating speed of the generator corresponding to the minimum oil consumption with the current power, and then, the generator is operated to adjust the rotating speed of the generator to the rotating speed of the generator corresponding to the minimum oil consumption with the current power; it should be noted that, this way of operating the generator may directly send a control signal to the generator, or may control the generator to adjust the rotation speed through an actuator receiving the indication signal, which is not specifically limited herein.
It can be seen that, by using the method of each embodiment, by obtaining the corresponding relationship between the minimum oil consumption point of the generator and the rotating speed of the generator under different output powers of the generator, finding the rotating speed of the generator corresponding to the minimum oil consumption under the current power according to the current output power, and then adjusting the rotating speed of the generator to the rotating speed corresponding to the minimum oil consumption, the effects of greatly saving oil and reducing consumption can be achieved on the premise that the generator contains no other equipment and no parameter is adjusted, so that the generator can work in a reasonable oil-saving rotating speed state, and the oil-saving effect is maximized.
Based on the above idea, embodiment 2 of the present invention further provides an apparatus for implementing energy saving control of a power generation system, as shown in fig. 3, the apparatus 300 includes: the system comprises an acquisition unit 310, a power sensor 320, a speed regulation controller 330 and a speed regulation actuator 340; wherein,
the acquiring unit 310 is configured to acquire a corresponding relationship between a minimum oil consumption point of the generator and a rotation speed of the generator under different output powers of the generator, and send the corresponding relationship to the speed regulating controller 330;
the power sensor 320 is used for acquiring the current output power of the generator and sending the current output power to the speed regulation controller 330;
the speed regulation controller 330 is configured to query, by using the correspondence obtained by the obtaining unit 310, a generator rotation speed corresponding to the lowest oil consumption point under the current output power obtained by the power sensor 320, and send a rotation speed signal to the speed regulation actuator 340;
the speed regulating actuator 340 is configured to adjust the rotating speed of the generator to the rotating speed of the generator corresponding to the lowest oil consumption point corresponding to the current output power according to the rotating speed signal sent by the speed regulating controller 330.
Wherein, the obtaining unit 310 may further include (not shown in the figure): the first setting module is used for setting the output power of the generator and the rotating speed of the generator; the first statistic module is used for adjusting the rotating speed and counting the oil consumption of the generator at different rotating speeds; the first recording module is used for recording the rotating speed point with the minimum oil consumption when the oil consumption is firstly reduced and then increased under different rotating speeds; or when the oil consumption is increased all the time, the first statistic module is instructed to adjust the rotating speed change step length, and the rotating speed point with the minimum oil consumption after the step length is adjusted is recorded.
In addition, the obtaining unit 310 may further include (not shown in the figure): the second setting module is used for setting the output power of the generator set; the second counting module is used for respectively counting the oil consumption corresponding to different rotating speed points N1 and N2; the first selection module is used for selecting a new rotating speed point N3 to be less than N2 and counting the oil consumption of the new rotating speed point N3 when the oil consumption of the rotating speed point N2 is less than that of the rotating speed point N1; the second selection module is used for acquiring another new rotating speed point N4 which is N2- (N2-N3) multiplied by 0.618, and counting the oil consumption of the rotating speed point N4; and the second recording module is used for acquiring two rotation speed points with low oil consumption from the rotation speed points N2, N3 and N4, then informing the second selection module, and recording the rotation speed corresponding to the lowest oil consumption in the rotation speed points.
In addition, embodiment 3 of the present invention also provides a power generation system, as shown in fig. 4, the system 400 includes: the system comprises a permanent magnet generator 410, an acquisition unit 420, a power sensor 430, a speed regulation controller 440, a speed regulation actuator 450 and an AC/DC rectifier 460; wherein,
the obtaining unit 420 is configured to obtain a corresponding relationship between a minimum oil consumption point and a rotation speed of the permanent magnet generator 410 under different output powers, and send the corresponding relationship to the speed regulation controller 440;
the power sensor 430 is configured to obtain a current output power of the permanent magnet generator 410, and send the obtained current output power to the speed regulation controller 440;
the speed regulation controller 440 is configured to query the lowest oil consumption point and the corresponding standard generator rotation speed at the obtained current output power by using the corresponding relationship between the lowest oil consumption point and the rotation speed of the permanent magnet generator 410 at the lowest oil consumption point, and send the rotation speed signal to the speed regulation actuator 450;
the speed regulating actuator 450 is configured to adjust the rotation speed of the permanent magnet generator 410 to a state matching the rotation speed of the standard generator according to the rotation speed signal sent by the speed regulating controller 440;
the AC/DC rectifier 460 is used to convert the AC power output by the permanent magnet generator into DC power.
In addition, embodiment 4 of the present invention also provides a power generation system, as shown in fig. 5, which is the same as the power generation system in the above embodiment and includes a plurality of devices with similar functions and connections, except that the current power obtained by the power sensor 430 is obtained after the AC/DC rectifier 460 converts the AC power output by the permanent magnet generator 410 into DC power, so that the energy saving effect of the power generation system is more stable and reliable.
It should be noted that, as those skilled in the art can easily understand, the apparatus for implementing energy saving control of a power generation system described in the above embodiments may also exist as a part of other systems, and the energy saving aspect of controlling a generator in the system is consistent with that described in the above embodiments, so that other systems including the apparatus for implementing energy saving control of a power generation system in the above embodiments should also be included in the protection scope of the present application, and are not described again here.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present embodiments.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present embodiments. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the embodiments. Thus, the present embodiments are not intended to be limited to the embodiments shown herein but are to be accorded the widest scope consistent with the principles and novel features disclosed herein.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention shall be included in the scope of the present invention.
Claims (10)
1. A method of implementing energy-saving control of a power generation system, comprising:
acquiring a corresponding relation between a minimum oil consumption point of a generator under different output powers of the generator and the rotating speed of the generator at the minimum oil consumption point;
acquiring the current output power of the generator;
and inquiring the lowest oil consumption point and the corresponding standard generator rotating speed under the acquired current output power by utilizing the corresponding relation between the lowest oil consumption point and the generator rotating speed at the lowest oil consumption point, and adjusting the rotating speed of the generator to be in a state of being matched with the standard generator rotating speed.
2. The method according to claim 1, characterized in that the corresponding relation between the lowest oil consumption point of the generator under different output powers of the generator and the rotating speed thereof is obtained by the following method:
presetting the output power of a generator and the rotating speed of the generator;
adjusting the rotating speed in a mode of increasing the step length N, and counting the oil consumption of the generator at different rotating speeds;
if the oil consumption is reduced firstly and then increased under different rotating speeds, the rotating speed point with the minimum oil consumption is obtained; and if the oil consumption is increased all the time in a preset period, adjusting the rotating speed in a mode of decreasing the step length N, counting the oil consumption of the generator at different rotating speeds, and if the oil consumption is decreased firstly and then increased at different rotating speeds, acquiring a rotating speed point with the minimum oil consumption.
3. The method according to claim 1, characterized in that the corresponding relation between the lowest oil consumption point of the generator under different output powers of the generator and the rotating speed thereof is obtained by the following method:
presetting the output power of a generator set;
respectively counting oil consumption corresponding to different rotating speed points N1 and N2;
if the oil consumption of the rotating speed point N2 is less than that of the rotating speed point N1, selecting a new rotating speed point N3 which is less than N2, and counting the oil consumption of the new rotating speed point N3;
acquiring another new speed point N4, wherein N4 is N2- (N2-N3) multiplied by 0.618, and counting the oil consumption of the speed point N4;
and acquiring two rotation speed points with low oil consumption from the rotation speed points N2, N3 and N4, returning to acquire a new rotation speed point again, counting the oil consumption by using the formula until the lowest oil consumption under the current output power is acquired, and recording the rotation speed of the generator corresponding to the lowest oil consumption.
4. The method of claim 1, further comprising:
converting alternating current output by the generator into direct current;
and acquiring the output power after the alternating current output by the generator is converted into the direct current.
5. The method of claim 4, further comprising:
and sending the inquired rotating speed signal corresponding to the lowest oil consumption under the current power to an actuator, and controlling and adjusting the rotating speed of the generator to a state matched with the standard rotating speed corresponding to the lowest oil consumption under the current power by the actuator.
6. An apparatus for implementing energy-saving control of a power generation system, comprising: the device comprises an acquisition unit, a power sensor, a speed regulation controller and a speed regulation actuator; wherein,
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point of the generator and the rotating speed of the generator under different output powers of the generator and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the generator and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the generator rotating speed at the lowest oil consumption point, and transmitting a rotating speed signal to the speed regulation actuator;
the speed regulating actuator is used for regulating the rotating speed of the generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulating controller.
7. The apparatus of claim 6, wherein the obtaining unit comprises:
the first setting module is used for setting the output power of the generator and the rotating speed of the generator;
the first statistic module is used for adjusting the rotating speed and counting the oil consumption of the generator at different rotating speeds;
the first recording module is used for recording the rotating speed point with the minimum oil consumption when the oil consumption is firstly reduced and then increased under different rotating speeds; or when the oil consumption is increased all the time, the first statistic module is instructed to adjust the rotating speed change step length, and the rotating speed point with the minimum oil consumption after the step length is adjusted is recorded.
8. The apparatus of claim 6, wherein the obtaining unit comprises:
the second setting module is used for setting the output power of the generator set;
the second counting module is used for respectively counting the oil consumption corresponding to different rotating speed points N1 and N2;
the first selection module is used for selecting a new rotating speed point N3 to be less than N2 and counting the oil consumption of the new rotating speed point N3 when the oil consumption of the rotating speed point N2 is less than that of the rotating speed point N1;
the second selection module is used for acquiring another new rotating speed point N4 which is N2- (N2-N3) multiplied by 0.618, and counting the oil consumption of the rotating speed point N4;
and the second recording module is used for acquiring two rotation speed points with low oil consumption from the rotation speed points N2, N3 and N4, then informing the second selection module, and recording the rotation speed corresponding to the lowest oil consumption in the rotation speed points.
9. A power generation system, comprising: the system comprises a permanent magnet generator, an acquisition unit, a power sensor, a speed regulation controller, a speed regulation actuator and an AC/DC rectifier; wherein,
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point and the rotating speed of the permanent magnet generator under different output powers and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the permanent magnet generator and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the permanent magnet generator rotating speed at the lowest oil consumption point, and transmitting the rotating speed signal to the speed regulation actuator;
the speed regulating actuator is used for regulating the rotating speed of the permanent magnet generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulating controller;
the AC/DC rectifier is used for converting the alternating current output by the permanent magnet generator into direct current.
10. A power generation system, comprising: the system comprises a permanent magnet generator, an acquisition unit, a power sensor, a speed regulation controller, a speed regulation actuator and an AC/DC rectifier; wherein,
the AC/DC rectifier is used for converting the alternating current output by the permanent magnet generator into direct current;
the acquisition unit is used for acquiring the corresponding relation between the lowest oil consumption point and the rotating speed of the permanent magnet generator under different output powers and sending the corresponding relation to the speed regulation controller;
the power sensor is used for acquiring the current output power of the permanent magnet generator converted by the AC/DC rectifier and sending the acquired current output power to the speed regulation controller;
the speed regulation controller is used for inquiring the lowest oil consumption point under the acquired current output power and the corresponding standard generator rotating speed by utilizing the corresponding relation between the lowest oil consumption point and the permanent magnet generator rotating speed at the lowest oil consumption point;
the speed regulation actuator is used for regulating the rotating speed of the permanent magnet generator to a state matched with the rotating speed of the standard generator according to the rotating speed signal sent by the speed regulation controller.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2011/076391 WO2012103709A1 (en) | 2011-06-27 | 2011-06-27 | Method, device and system for speed control of generator set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102232268A true CN102232268A (en) | 2011-11-02 |
| CN102232268B CN102232268B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180000853.XA Expired - Fee Related CN102232268B (en) | 2011-06-27 | 2011-06-27 | Method, device for realizing energy saving control of generating system, and generating system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102232268B (en) |
| WO (1) | WO2012103709A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204797A (en) * | 2018-08-31 | 2019-01-15 | 辽宁同心圆科技有限公司 | Aero-engine energy-saving power-assisting device |
| CN109270966A (en) * | 2018-08-31 | 2019-01-25 | 沈阳丁通用科技研究院 | Energy-saving permanent-magnet speed-regulating system and method |
| CN109383782A (en) * | 2018-08-31 | 2019-02-26 | 辽宁同心圆科技有限公司 | Aero-engine is escaped danger energy-saving power-boost system |
| CN109383783A (en) * | 2018-08-31 | 2019-02-26 | 辽宁同心圆科技有限公司 | Aero-engine energy-saving power-boost system |
| CN117605589A (en) * | 2024-01-24 | 2024-02-27 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
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| CN1074870A (en) * | 1991-10-04 | 1993-08-04 | 曼内斯曼股份公司 | A kind of car transmissions |
| JPH0861114A (en) * | 1994-08-25 | 1996-03-05 | Isuzu Motors Ltd | Engine operation controller |
| 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 |
| CN102005999A (en) * | 2009-09-02 | 2011-04-06 | 张怀亮 | Energy-saving controller for internal combustion generating set |
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- 2011-06-27 CN CN201180000853.XA patent/CN102232268B/en not_active Expired - Fee Related
- 2011-06-27 WO PCT/CN2011/076391 patent/WO2012103709A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1074870A (en) * | 1991-10-04 | 1993-08-04 | 曼内斯曼股份公司 | A kind of car transmissions |
| JPH0861114A (en) * | 1994-08-25 | 1996-03-05 | Isuzu Motors Ltd | Engine operation controller |
| 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 |
| CN102005999A (en) * | 2009-09-02 | 2011-04-06 | 张怀亮 | Energy-saving controller for internal combustion generating set |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109204797A (en) * | 2018-08-31 | 2019-01-15 | 辽宁同心圆科技有限公司 | Aero-engine energy-saving power-assisting device |
| CN109270966A (en) * | 2018-08-31 | 2019-01-25 | 沈阳丁通用科技研究院 | Energy-saving permanent-magnet speed-regulating system and method |
| CN109383782A (en) * | 2018-08-31 | 2019-02-26 | 辽宁同心圆科技有限公司 | Aero-engine is escaped danger energy-saving power-boost system |
| CN109383783A (en) * | 2018-08-31 | 2019-02-26 | 辽宁同心圆科技有限公司 | Aero-engine energy-saving power-boost system |
| CN109383782B (en) * | 2018-08-31 | 2022-07-26 | 辽宁同心圆科技有限公司 | Danger-escaping energy-saving power-assisting system of aero-engine |
| CN109383783B (en) * | 2018-08-31 | 2022-07-26 | 辽宁同心圆科技有限公司 | Energy-saving power-assisting system of aero-engine |
| CN109204797B (en) * | 2018-08-31 | 2022-07-26 | 辽宁同心圆科技有限公司 | Energy-saving power assisting device of aero-engine |
| CN117605589A (en) * | 2024-01-24 | 2024-02-27 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
| CN117605589B (en) * | 2024-01-24 | 2024-03-29 | 山西汇达电信设备有限公司 | Energy-saving control method of diesel generator |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012103709A1 (en) | 2012-08-09 |
| CN102232268B (en) | 2013-06-05 |
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