CN218101411U - Unattended hydropower station diesel generator starting battery management device - Google Patents
Unattended hydropower station diesel generator starting battery management device Download PDFInfo
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- CN218101411U CN218101411U CN202221499168.8U CN202221499168U CN218101411U CN 218101411 U CN218101411 U CN 218101411U CN 202221499168 U CN202221499168 U CN 202221499168U CN 218101411 U CN218101411 U CN 218101411U
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- 238000012360 testing method Methods 0.000 claims abstract description 23
- 230000001052 transient effect Effects 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 3
- 238000012800 visualization Methods 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005059 dormancy Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
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Abstract
The utility model discloses an unmanned on duty power station diesel generator starts battery management device, include: the control module is provided with a remote communication interface and is used for realizing remote communication and control; the program-controlled DC/DC module is used for realizing that the starting battery enters a dormant state after charging is completed; the test module adopts a transient large current mode to test the cold start capability of the starting battery; the AC/DC module is used for converting alternating current into voltage required by the program-controlled DC/DC module; the testing module and the program-controlled DC/DC module are connected with a starting battery of the diesel generator. The utility model prolongs the service life of the starting battery of the diesel generator of the unattended hydropower station; the performance visualization of the starting battery of the diesel generator of the unattended hydropower station is realized; the charge and discharge control of the starting battery with different voltages and different capacities can be realized.
Description
Technical Field
The utility model relates to an unmanned on duty electricity generation field especially relates to unmanned on duty power station diesel generator starts battery management device.
Background
The power dispatching and commanding system of the hydropower station needs to have sufficient power guarantee, but alternating current power supply is very easily influenced by factors such as typhoon, thunder and lightning, abnormal load and the like, so that a storage battery is also needed to be used as a backup power supply in a normal state, uninterrupted output power is guaranteed under abnormal conditions, and the safety of the power dispatching and commanding system of the hydropower station is guaranteed. However, it is not feasible to rely solely on batteries, because the battery has a limited supply time, and in hydroelectric power stations, diesel generators must be configured and are specifically required by design specifications.
As is known, the alternating current power supply in any scene has the possibility of interruption, a storage battery is used as a main guarantee factor for uninterrupted power supply, but the price, maintenance cost and the like of the storage battery determine that the capacity of the storage battery cannot be configured to meet the requirement of supporting any power failure duration, particularly in the scene with large power consumption, the storage battery generally only needs to support for several minutes to half an hour, and the requirement of normally starting a diesel generator to generate power is met. With the development of science and technology, more and more hydropower stations put forward unattended requirements. The diesel generator is equipped, and the diesel generator is expected to function naturally, but in actual environment, the service life of the starting battery of the diesel generator is short, and the starting battery needs to be replaced frequently. Some maintainers find that the service life of the diesel engine starting battery is short because the starting battery is in a charging state for a long time, and the storage battery is separated from the charger after being charged. However, the self-discharge of the starting battery is very serious, and the battery needs to be charged frequently, so that the periodic charging of the battery becomes a very troublesome work. The problem of managing the starting battery becomes an obstacle when an unattended hydropower station is built.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the safety and reliability management problem of the starting battery of the unattended hydropower station is solved. The utility model provides an unmanned on duty power station diesel generator starts battery management device.
The technical scheme of the utility model is realized like this: unmanned on duty power station diesel generator starts battery management device includes:
the control module is provided with a remote communication interface and is used for realizing remote communication and control;
the program-controlled DC/DC module is connected with the control module and is used for starting a battery to enter a dormant state after charging is completed;
the test module is connected with the control module and adopts a transient large current mode to test the cold starting capability of the starting battery;
the AC/DC module is connected with the program-controlled DC/DC module and is used for converting alternating current into voltage required by the program-controlled DC/DC module;
the testing module and the program-controlled DC/DC module are connected with a starting battery of the diesel generator.
Further, the test module comprises a PWM module and a resistor connected with the PWM module, the PWM module comprises an MOS device, the MOS device is an N-channel MOS device with 120V and normal working current of 200A, and the resistor is a metal resistor with 50m omega and power of 10W.
Further, the power of the programmable DC/DC module is 700W.
Further, the remote communication interface of the control module includes, but is not limited to: 4G module, 5G module and TCP/IP network.
Further, the AC/DC module is a switching power supply with 220V input alternating current and 48V output direct current and 1000W power.
The utility model has the advantages that compared with the prior art, the starting battery of the utility model can enter a dormant state after the charging is completed, when the storage battery is dormant, the influence of external environment temperature is not needed to be worried about, and the service life of the starting battery of the diesel generator of the unattended hydropower station is prolonged; the visualization of the performance of the starting battery of the diesel generator of the unattended hydropower station is realized; the charge and discharge control of the starting battery with different voltages and different capacities can be realized.
Drawings
Fig. 1 is a schematic block diagram of a battery management device for starting a diesel generator of an unattended hydropower station according to the utility model;
fig. 2 is a schematic block diagram of the test module of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Referring to fig. 1, the diesel generator starting battery management apparatus for an unattended hydropower station includes:
the control module is provided with a remote communication interface and is used for realizing remote communication and control;
the program-controlled DC/DC module is connected with the control module and is used for entering a dormant state after the charging of the starting battery is finished;
the test module is connected with the control module and adopts a transient large current mode to test the cold starting capability of the starting battery;
the AC/DC module is connected with the program-controlled DC/DC module and is used for converting alternating current into voltage required by the program-controlled DC/DC module;
the testing module and the program-controlled DC/DC module are connected with a starting battery of the diesel generator.
The present invention will be explained below by taking a diesel generator starting battery of 24v,120ah as an example.
Firstly, the highest charging voltage of the battery is calculated according to 12 2V storage battery cells, the charging voltage of each cell is 2.35V, and the voltage value is as follows: 12 x 2.35=28.2v, and considering that the charging voltage is properly increased, the highest charging voltage is selected to be 28.6V, so that the storage battery can be charged in a transient state with better effect.
The charging current is better guaranteed to the service life of the storage battery according to 0.1C charging in principle, the 0.1C charging current of the storage battery is 12A, and in actual use, certain redundant storage battery charging current is selected, and the maximum charging current is 20A.
In principle, it is determined that the programmable DC/DC module of the present invention needs to meet the power requirement of more than 28.6v × 20a = 572w. Considering the factors of working efficiency and the like, the power of the programmable DC/DC module is designed according to the power of 700W.
The charging power of the battery is confirmed, and then the power and voltage level of the AC/DC module can be determined. Considering practical use scenes, convenient purchasing and other factors, the AC/DC module adopts a switching power supply with 220V input alternating current, 48V output direct current and about 1000W power.
The utility model discloses well test module is the utility model discloses a key because the start-up battery capability test just relies on this module. The performance of the starting battery is tested, and the international common method is to test the cold starting capability of the starting battery. We illustrate this cold start capability test method by means of fig. 2.
Firstly, it needs to be introduced that the circuit is actually a transient discharge circuit, and the transient discharge current is very large, so that the MOS tube Q in the circuit selects an N-channel MOS device with the withstand voltage of 120V and the normal working current of 200A; in order to ensure the transient discharge capability of the circuit, the resistor R in FIG. 2 is a metal resistor with the resistance of 50m Ω and the power of 10W.
The PWM signal in fig. 2 is provided by the control module, and in practical use, the PWM signal does not use its pulse output function, but uses its high-low level output function, and it only needs to implement the switching function of the MOS device, and of course, the switching time can be controlled by the control module.
The test procedure of the starting battery of the storage battery is as follows:
the first step is as follows: the static voltage of the starting battery is tested.
The second step is that: and starting the PWM signal to output high level to switch on the MOS tube Q.
The third step: and testing and recording the terminal voltage of the battery and the voltage V on the load resistor R when the MOS tube Q is conducted.
The fourth step: keeping the MOS tube on for 10ms, and continuously recording the terminal voltage of the starting battery and the voltage on the load resistor R.
The fifth step: and calculating the current during the conduction period of the MOS tube Q, wherein the current passing through the load resistor R can be obtained by using the voltage V/R.
And a sixth step: and closing the PWM signal to enable the PWM signal to output low level and enable the MOS transistor Q to be closed.
A seventh section: and testing and recording the terminal voltage of the battery when the MOS tube Q is closed. Until the starting voltage is restored to 24V.
By this method, the transient discharge capability of the starting battery can be tested.
This test data is very useful for verification of the performance of the starting battery during actual use. Under the condition that the performance of the starting battery is better, when the starting battery is discharged in a transient state, the terminal voltage of the starting battery is not reduced greatly, and the voltage value of the 24V storage battery is kept above 20V; when the performance of the starting battery is general, the terminal voltage value can be kept near 18V; when the performance of the starting battery is poor and needs to be replaced, the terminal voltage value drops to 16V or below, and a battery replacement signal is required.
The utility model discloses unmanned on duty power station diesel generator starts battery management device, through the charging of remote control start-up battery, guarantee to start the battery and be in safe charged state forever, when can guaranteeing that external environment temperature is high, reduce charging voltage, guarantee that the battery can not appear the high temperature and lead to the battery to damage, solved the long-range intelligent management problem of unmanned on duty power station diesel generator start-up battery.
The utility model discloses unmanned on duty power station diesel generator starts battery management device's starting battery can get into the dormant state after the completion of charging, and during the battery dormancy, need not worry the influence of external environment temperature, solved the life-span problem of unmanned on duty power station diesel generator starting battery.
The utility model discloses unmanned on duty power station diesel generator starts battery management device, because diesel generator's charge ability and transient state discharge ability can all test, can judge this performance of starting the battery according to this test data, slide when discovering this start-up battery performance, possible deterioration is to when unable use, can send the order of reporting an emergency and asking for help or increased vigilance, change this start-up battery, guarantee that diesel generator can safe start when needing to start, the visual problem of the performance of unmanned on duty power station diesel generator start-up battery has been solved.
The utility model discloses unmanned on duty power station diesel generator starts battery management device, the same hardware circuit, the different software of configuration just can realize the charge and discharge control of the start-up battery of different voltage, different capacity, can solve 12V start-up battery and 24V start-up battery's management problem.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, several improvements and decorations can be made, which are also considered as the protection scope of the present invention.
Claims (5)
1. Unmanned on duty power station diesel generator starts battery management device, its characterized in that includes:
the control module is provided with a remote communication interface and is used for realizing remote communication and control;
the program-controlled DC/DC module is connected with the control module and is used for entering a dormant state after the charging of the starting battery is finished;
the test module is connected with the control module and adopts a transient large current mode to test the cold starting capability of the starting battery;
the AC/DC module is connected with the program-controlled DC/DC module and is used for converting alternating current into voltage required by the program-controlled DC/DC module;
the testing module and the program-controlled DC/DC module are connected with a starting battery of the diesel generator.
2. The unattended hydropower station diesel generator starting battery management device according to claim 1, wherein the test module comprises a PWM module and a resistor connected with the PWM module, the PWM module comprises a MOS device, the MOS device is a 120V N-channel MOS device with a normal operating current of 200A, and the resistor is a metal resistor with a power of 10W and a voltage of 50m Ω.
3. The unattended hydropower station diesel generator started battery management apparatus of claim 1, wherein the programmable DC/DC module has a power of 700W.
4. The unattended hydro-power plant diesel-generator started battery management apparatus of claim 1, wherein the remote communication interface of the control module includes but is not limited to: 4G module, 5G module and TCP/IP network.
5. The unattended hydro-power plant diesel generator started battery management apparatus of claim 1, wherein the AC/DC module is a switching power supply with 220V AC input, 48V DC output, and 1000W power.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221499168.8U CN218101411U (en) | 2022-06-15 | 2022-06-15 | Unattended hydropower station diesel generator starting battery management device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221499168.8U CN218101411U (en) | 2022-06-15 | 2022-06-15 | Unattended hydropower station diesel generator starting battery management device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218101411U true CN218101411U (en) | 2022-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221499168.8U Active CN218101411U (en) | 2022-06-15 | 2022-06-15 | Unattended hydropower station diesel generator starting battery management device |
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| Country | Link |
|---|---|
| CN (1) | CN218101411U (en) |
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2022
- 2022-06-15 CN CN202221499168.8U patent/CN218101411U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230915 Address after: Room 301, Building H3, No. 39 Ruihe Road, Huangpu District, Guangzhou City, Guangdong Province, 510700 Patentee after: Guangzhou Honghuai Energy Service Co.,Ltd. Address before: 510000 third floor, H3, Nagin Science Park, No. 39, Ruihe Road, Huangpu District, Guangzhou, Guangdong Patentee before: GUANGZHOU HONGHUAI ENERGY TECHNOLOGY CO.,LTD. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Unmanned hydroelectric power station diesel generator starter battery management device Effective date of registration: 20231201 Granted publication date: 20221220 Pledgee: Gu Chunhua Pledgor: Guangzhou Honghuai Energy Service Co.,Ltd. Registration number: Y2023980068864 |