CN210799154U - Speed regulation control device, diesel generator set and diesel generator set for communication equipment - Google Patents
Speed regulation control device, diesel generator set and diesel generator set for communication equipment Download PDFInfo
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- CN210799154U CN210799154U CN201921938273.5U CN201921938273U CN210799154U CN 210799154 U CN210799154 U CN 210799154U CN 201921938273 U CN201921938273 U CN 201921938273U CN 210799154 U CN210799154 U CN 210799154U
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- 238000004891 communication Methods 0.000 title claims abstract description 17
- 230000033228 biological regulation Effects 0.000 title claims abstract description 13
- 239000003990 capacitor Substances 0.000 claims description 11
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- 238000006243 chemical reaction Methods 0.000 description 1
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Abstract
Provided are a speed regulation control device, a diesel generator set and a diesel generator set for communication equipment. The speed regulation control device of the diesel generating set comprises an electronic speed regulator (3), and is characterized in that the speed regulation control device further comprises a power meter (1) and a differential circuit (2), wherein the differential circuit (2) is connected with the power meter (1) and the electronic speed regulator (3), is formed by inputting a current signal from the power meter (1) and outputting a voltage signal to an external input end of a set value of the electronic speed regulator (3).
Description
Technical Field
The utility model relates to a speed governing controlling means and possess this speed governing controlling means's diesel generating set and diesel generating set for communication equipment.
Background
The diesel generating set is used as an emergency or standby power supply and is widely applied to various occasions. For example, to prevent the risk of commercial power interruption, a diesel generator set is an indispensable application guarantee. At present, only a few types of diesel generating sets with diesel engines adopting a mechanical pump oil injection mode on the market can reach the G3 grade specified in the product manufacturing standard 'reciprocating internal combustion engine driven alternating current generating set ISO 8528-5' and the communication industry standard 'communication diesel generating set YD-T502', namely, specified loads are applied instantly, and the rotating speed recovery time is less than or equal to 3 s. Most models can only reach the G2 grade specified in ISO8528-5 and YD-T502, namely, the rotating speed recovery time is less than or equal to 5 s. The longer the speed recovery time, the more the quality of the power supply is affected, and thus the normal use of the electric load may be affected.
Especially, in communication industries with great demand for power consumption, data centers and the like, emergency power supplies are required to provide more stable and reliable power supplies than commercial power supplies. Therefore, the requirement for generator performance to reach the G3 level is one of the important indicators entering the communications industry and data centers. If the performance of the diesel engine adopting the mechanical pump oil injection mode can be greatly improved to reach the G3 standard, the product competitiveness can be greatly improved.
The diesel engine with the mechanical pump oil injection mode is provided with the digital electronic speed regulator, so that a diesel generator set can reach the G3 grade, but the configuration is high in manufacturing cost, and the digital electronic speed regulator does not generally belong to the self-owned technology of diesel engine manufacturers.
At present, an electronic speed regulator of a diesel generating set widely controls the constant rotating speed of a diesel engine by detecting a rotating speed change signal of the diesel engine. The electronic governor compares the rotation speed signal with a set value (usually, the set value is a rated rotation speed value of the diesel engine), when the load increases, the rotation speed decreases, and the received rotation speed signal is smaller than the set value, so that the electronic governor increases the value of the voltage signal as an output signal to the actuator, so that the accelerator is increased to restore the rotation speed to the set value; on the contrary, when the load is reduced, the rotating speed is increased, and the received rotating speed signal is greater than the set value, so the electronic speed regulator reduces the output signal to the actuator, and the accelerator is reduced to restore the rotating speed to the set value.
The method has the disadvantages that the speed regulation reaction is slow, the rotation speed change must be detected to give a regulation signal, and the rotation speed recovery time is about 4 seconds when 50% of rated load is suddenly added to most diesel generating sets carrying diesel engines with mechanical pump oil injection modes.
SUMMERY OF THE UTILITY MODEL
The utility model discloses in view of the above-mentioned problem that exists among the prior art and research and development, aim at provides a speed governing controlling means and possesses this speed governing controlling means's diesel generating set, can accelerate the electronic governor response speed of the diesel engine of conventional mechanical pump oil spout mode. Furthermore, another object of the utility model is to provide a diesel generating set for communication equipment can improve the stability of communication equipment operation.
In order to solve the above problem, an aspect of the present invention provides a speed regulation control device of a diesel generator set, including an electronic speed regulator, the speed regulation control device is characterized in that, the speed regulation control device further includes a power meter and a differential circuit, the differential circuit with the power meter and the electronic speed regulator are connected, constitute as follows the power meter input current signal, and to the external input end output voltage signal of the setting value of the electronic speed regulator.
In the above aspect, it is preferable that the power meter is configured to detect an active power of the generator and output the current signal corresponding to the active power.
Further, in the above-described aspect, it is preferable that the differential circuit includes a series circuit including a variable capacitor, a second fixed resistor, and a variable resistor connected in series, and a first fixed resistor connected in parallel with the series circuit.
In the above aspect, it is preferable that the resistance value of the first fixed resistor is 500 Ω, the resistance value of the second fixed resistor is 100 Ω, the capacitance value of the variable capacitor is 2 μ F or less, and the resistance value of the variable resistor is 500 Ω or less.
In the above aspect, the capacitance value of the variable capacitor is preferably 1 μ F or less.
In the above aspect, it is preferable that the electronic governor is an analog electronic governor.
Furthermore, in the above solution, it is preferable that the power meter is an active power meter.
Another aspect of the utility model provides a diesel generating set, including diesel engine and generator, diesel generating set's characterized in that, diesel generating set still includes the speed governing control device of any above-mentioned scheme, electronic governor connect in the diesel engine, the power meter connect in the generator.
Another aspect of the utility model provides a diesel generating set for communication equipment, including diesel engine and generator, diesel generating set for communication equipment's characterized in that, diesel generating set for communication equipment still includes the speed governing controlling means of any above-mentioned scheme, electronic governor connect in the diesel engine, the power meter connect in the generator.
Effect of the utility model
According to the utility model discloses, through adopting the utility model discloses a speed governing control device can improve the response speed of diesel generator group to the load change. Furthermore, through adopting the utility model discloses a speed governing control device adopts current simulation electronic governor just can make diesel generating set's response speed shorten to within 3s or even 2s, can save the cost. Furthermore, through adopting the utility model discloses a diesel generating set for communication equipment can improve the stability of communication equipment operation.
Drawings
Fig. 1 is a schematic diagram for explaining a speed control device according to an embodiment of the present invention.
Fig. 2 is a schematic diagram illustrating a main part of a speed control device according to an embodiment of the present invention, which is used in a diesel generator set.
Description of reference numerals:
1 … Power Meter (active power Meter)
2 … differentiating circuit
3 … electronic speed regulator
4 … actuator
R1 … fixed resistor (first fixed resistor)
R2 … variable resistor
R3 … fixed resistor (second fixed resistor)
C … variable capacitor
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the relevant portions of the related inventions are shown in the drawings.
Fig. 1 is a schematic diagram for explaining a speed control device according to an embodiment of the present invention. Fig. 2 is a schematic diagram illustrating a main part of a speed control device according to an embodiment of the present invention, which is used in a diesel generator set.
The governor control device of the present embodiment is a governor control device of a diesel generator set, and as shown in fig. 1 and 2, the governor control device includes a power meter 1, a differentiating circuit 2, and an electronic governor 3. The differentiating circuit 2 is connected to the power meter 1 and the electronic governor 3, and is configured to input a current signal from the power meter 1 and output a voltage signal to an external input terminal of a set value of the electronic governor 3. The set value is a rotation speed value used for comparison with a rotation speed signal from the diesel engine in the electronic governor 3, and is normally initially set to a rated rotation speed value of the diesel engine.
In the present embodiment, the power meter 1 is configured to detect active power of a generator in the diesel generator set and output a current signal corresponding to the active power. It should be noted that any existing power meter can be used as long as the active power of the generator can be detected. In the present embodiment, an active power meter is used as the power meter 1. In addition, the electronic governor may employ an existing analog electronic governor.
Next, the operation principle of the speed control device of the present invention will be described in detail.
In this embodiment, the active power meter, i.e., power meter 1, is used to detect the active power signal of the generator, because the load change of the diesel generator set will be reflected on the active power first. When the active power, i.e. the load power, changes instantaneously, the power meter 1 can output current signals synchronously. The differentiating circuit 2 receives the current signal from the power meter 1, converts the current signal into a voltage signal corresponding to the current signal, and outputs the voltage signal to an external input terminal of a set value of the electronic governor 3. That is, when the load of the diesel generator set changes, the set value of the electronic governor 3 can be instantaneously changed.
When the load is increased, the load power is increased, the set value can be immediately increased after the electronic speed regulator receives the corresponding voltage signal, and because the increased set value is greater than the current rotating speed signal, the electronic speed regulator increases an output signal to the actuator 4, so that the accelerator is increased to increase the rotating speed to the set value; on the contrary, when the load is reduced, the load power is reduced, the set value can be immediately reduced after the electronic speed regulator receives the corresponding voltage signal, and because the reduced set value is smaller than the current rotating speed signal, the electronic speed regulator reduces the output signal to the actuator 4, so that the accelerator is reduced, and the rotating speed is reduced to the set value.
Because the load power can be changed firstly compared with the change of the rotating speed of the diesel engine when the load is changed, compared with the existing method of controlling the constant rotating speed of the diesel engine by detecting a rotating speed change signal, the electronic speed regulator can increase or decrease the output voltage to the actuator 4 more quickly to adjust the size of the accelerator, thereby greatly shortening the rotating speed recovery time.
The utility model discloses the specially adapted suddenly add the condition of the power load of suddenly reducing (generally being greater than 1/3 rated power) in the twinkling of an eye, and when the load change is less (generally being less than 1/3 rated power), the voltage amplitude of following differential circuit 2 output is lower to the terminal input signal of the setting value of electronic governor is weaker, and the speed governing effect may not be obvious, but still plays a role.
In the present invention, the differential circuit 2 can use any one of the existing ones. As shown in fig. 1 and 2, the differential circuit 2 illustrated in this embodiment includes a series circuit including a variable capacitor C, a fixed resistor R3 (second fixed resistor), and a variable resistor R2 connected in series, and a fixed resistor R1 (first fixed resistor) connected in parallel with the series circuit.
The values of the fixed resistor R1, the variable resistor R2, the fixed resistor R3, and the variable capacitor C are not particularly limited. As a preferred embodiment, for example: the resistance value of the fixed resistor R1 is 500 Ω, the resistance value of the fixed resistor R3 is 100 Ω, the capacitance value of the variable capacitor C is 2 μ F or less, and the resistance value of the variable resistor R2 is 500 Ω or less. Further, the capacitance value of the variable capacitor C is preferably 1 μ F or less.
According to the utility model discloses, can accelerate the diesel engine to the response speed of load change through combining current simulation electronic governor, can shorten the response time of the diesel generating set of most G2 grades at present within from 5s to within 3s or even 2s, can compare favourably with digital electronic governor or even electronic fuel injection engine.
Although the present invention has been described with reference to preferred embodiments thereof, those skilled in the art will appreciate that various modifications, substitutions and changes can be made thereto without departing from the spirit and scope of the present invention. Accordingly, the present invention should not be limited by the above-described embodiments, but should be defined by the appended claims and their equivalents.
Claims (9)
1. A speed regulation control device of a diesel generating set comprises an electronic speed regulator and is characterized in that,
the speed regulation control device also comprises a power meter and a differential circuit,
the differentiating circuit is connected to the power meter and the electronic governor, and is configured to input a current signal from the power meter and output a voltage signal to an external input terminal of a set value of the electronic governor.
2. The throttle control device according to claim 1,
the power meter is configured to detect an active power of the generator and output the current signal corresponding to the active power.
3. The throttle control device according to claim 1,
the differentiating circuit includes a series circuit and a first fixed resistor connected in parallel with the series circuit,
the series circuit includes a variable capacitor, a second fixed resistor, and a variable resistor connected in series.
4. Speed regulation control apparatus according to claim 3,
the resistance value of the first fixed resistor is 500 Ω, the resistance value of the second fixed resistor is 100 Ω, the capacitance value of the variable capacitor is 2 μ F or less, and the resistance value of the variable resistor is 500 Ω or less.
5. The throttle control device according to claim 4,
the capacitance value of the variable capacitor is 1 [ mu ] F or less.
6. The throttle control device according to claim 1,
the electronic governor is an analog electronic governor.
7. The throttle control device according to claim 1,
the power meter is an active power meter.
8. A diesel generating set comprises a diesel engine and a generator, and is characterized in that,
the diesel-electric generator set further comprising a governor control device of any one of claims 1 to 7,
the electronic speed regulator is connected with the diesel engine,
the power meter is connected to the generator.
9. A diesel generator set for communication equipment comprises a diesel engine and a generator, and is characterized in that,
the diesel generator set for communication equipment further comprising the governor control device of any one of claims 1 to 7,
the electronic speed regulator is connected with the diesel engine,
the power meter is connected to the generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938273.5U CN210799154U (en) | 2019-11-11 | 2019-11-11 | Speed regulation control device, diesel generator set and diesel generator set for communication equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921938273.5U CN210799154U (en) | 2019-11-11 | 2019-11-11 | Speed regulation control device, diesel generator set and diesel generator set for communication equipment |
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| Publication Number | Publication Date |
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| CN210799154U true CN210799154U (en) | 2020-06-19 |
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| CN201921938273.5U Expired - Fee Related CN210799154U (en) | 2019-11-11 | 2019-11-11 | Speed regulation control device, diesel generator set and diesel generator set for communication equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431687A (en) * | 2021-04-12 | 2021-09-24 | 上海昱章电气成套设备有限公司 | Novel topological structure of digital speed regulator |
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2019
- 2019-11-11 CN CN201921938273.5U patent/CN210799154U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431687A (en) * | 2021-04-12 | 2021-09-24 | 上海昱章电气成套设备有限公司 | Novel topological structure of digital speed regulator |
| CN113431687B (en) * | 2021-04-12 | 2024-02-09 | 上海昱章电气股份有限公司 | Novel topological structure of digital speed regulator |
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Granted publication date: 20200619 |