CN203406636U - Intelligent diesel-electric hybrid power supply system of communication base station - Google Patents
Intelligent diesel-electric hybrid power supply system of communication base station Download PDFInfo
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- CN203406636U CN203406636U CN201320375684.4U CN201320375684U CN203406636U CN 203406636 U CN203406636 U CN 203406636U CN 201320375684 U CN201320375684 U CN 201320375684U CN 203406636 U CN203406636 U CN 203406636U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
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Abstract
The utility model discloses an intelligent diesel-electric hybrid power supply system of a communication base station. The intelligent hybrid electric power supply system comprises a commercial power, a hybrid energy source, a hybrid energy source manager, a DC/DC conversion controller and a storage battery, wherein the hybrid energy source comprises a diesel generating set, wind energy and solar energy; the diesel generating set is a variable-frequency DC generating set; the commercial power and the hybrid energy source are connected with the input end of the hybrid energy source manager, the output end of the hybrid energy source manager is connected with the input end of the DC/DC conversion controller, the output end of the DC/DC conversion controller is connected with a load, the storage battery is connected with the output end of the DC/DC conversion controller and the load. The seamless switch between the variable-frequency DC generating set and the renewable energy source is achieved, so that the renewable energy source can be effectively utilized, the atmospheric pollution is reduced, and the intelligent diesel-electric hybrid power supply system has great value on the protection of the human environment.
Description
Technical Field
The utility model relates to a communication base station's intelligent oil-electricity hybrid power system
Background
At present, no commercial power communication base station generally adopts a diesel generator set to supply power. More than one hundred thousand base stations in the middle east, north africa, southeast asia and western regions of China are powered by diesel generator sets. These base stations typically employ a pattern in which two diesel generators are powered in turn. The conventional power supply mode of the non-mains supply base station comprises two diesel generator sets 11 and 12, an automatic switching system (ATS)20, a storage battery 30 and a direct-current voltage control cabinet 40 (as shown in fig. 1). The automatic switching device 20 controls the two diesel generator sets 11 and 12 to alternately charge the storage battery 30. When the traditional diesel generator set is used in a communication base station, the traditional diesel generator set is in a low-load state for a long time, so that the energy consumption is relatively large, the efficiency is low, the carbon emission is large, and the traditional diesel generator set is not beneficial to environmental protection.
Wind energy and solar energy are the most mature renewable energy sources for the current technical development. However, the uncertainty of wind power resources and the discontinuity of solar energy cause the output electric energy power of the wind power generator and the solar panel to be pulsating and discontinuous, and the electric energy power cannot be directly used for the production and living power demand of people without control. Therefore, these new energy sources require a separate controller to access the hybrid energy system, which is expensive.
Disclosure of Invention
The utility model aims at overcoming prior art's defect, providing a communication base station's intelligence oil-electricity hybrid power system, it has realized the seamless switching between frequency conversion DC generating set and the renewable energy for when the renewable energy effectively utilizes, can also reduce the atmosphere pollution, have great meaning to human environmental protection.
The technical scheme for realizing the purpose is as follows: an intelligent oil-electricity hybrid power supply system of a communication base station comprises a commercial power supply, a hybrid energy source manager, a DC/DC conversion controller and a storage battery, wherein the hybrid energy source comprises a diesel generator set, wind energy and solar energy; the diesel generator is a variable frequency direct current generator set; the commercial power and the hybrid energy are connected with the input end of the hybrid energy manager, the output end of the hybrid energy manager is connected with the input end of the DC/DC conversion controller, the output end of the DC/DC conversion controller is connected with a load, and the storage battery is connected with the output end of the DC/DC conversion controller and the load; the hybrid energy manager tracks the maximum power point of the wind energy and the solar energy, realizes seamless switching of the commercial power, the diesel generator set, the wind energy and the solar energy, can control the start and stop of the diesel generator set according to the power supply quality of the commercial power and the voltage of a storage battery, and can convert alternating current voltage provided by the commercial power, the wind energy and the diesel generator set into first direct current voltage; the DC/DC conversion controller is used for converting the first direct-current voltage provided by the hybrid energy manager into a second direct-current voltage to charge the storage battery and controlling the charging and discharging of the storage battery; the storage battery is used for storing the electric energy of the second direct current voltage provided by the DC/DC conversion controller.
When the optimal output power of the wind energy and the solar energy is larger than the actual consumed power of a load, the DC/DC conversion controller controls the storage battery to store redundant electric energy; when the optimal output power of wind energy and solar energy is smaller than the actual consumed power of a load, the DC/DC conversion controller controls the storage battery to release the stored electric energy to supplement the power difference, and when the release of the electric energy in the storage battery is finished, the hybrid energy manager starts the diesel generator set to charge the storage battery and carry the load.
The intelligent oil-electricity hybrid power supply system of the communication base station is characterized in that the variable-frequency direct-current generator set comprises a variable-frequency engine, a permanent magnet synchronous motor and a control module.
In the intelligent oil-electricity hybrid power supply system of the communication base station, the storage battery is a lithium iron phosphate battery pack.
The intelligent oil-electricity hybrid power supply system of the communication base station is characterized in that the first direct current voltage is 300V, and the second direct current voltage is 48V.
The utility model discloses an intelligent oil-electricity hybrid power system of communication base station, use frequency conversion direct current diesel generating set as the core, adjust the dispatch through unified controller with the energy of difference, complement its electricity generation disappearance each other, realize seamless switching between frequency conversion direct current generating set and the renewable energy, but output automatically regulated is the optimum, make the generating efficiency obtain improving greatly, greatly reduced the oil consumption, it is energy-conserving to reach 30% ~ 70%, and the reliability of equipment can improve, the life of equipment can greatly increase, no longer need the base station air conditioner to assist the cooling in the use, not only the hardware investment cost of equipment can reduce, and daily maintenance cost also can reduce. Compared with the traditional power supply mode of a single diesel generator set, the power supply system has the advantages that the cost is reduced, high-quality and stable electric quantity can be provided for the client, the renewable energy is effectively utilized, meanwhile, the emission of pollutants is reduced, and the power supply system has great significance for human environment protection.
Drawings
Fig. 1 is a block diagram of a power supply system of a communication base station of the prior art;
fig. 2 is a block diagram of the intelligent oil-electricity hybrid power system of the communication base station of the present invention;
fig. 3 is the utility model discloses a communication base station intelligence oil-electricity hybrid power system's hybrid energy manager's schematic diagram.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the following detailed description is provided with reference to the accompanying drawings:
referring to fig. 2 and 3, the intelligent oil-electricity hybrid power system of the communication base station of the present invention includes a commercial power 1, a hybrid energy 2, a hybrid energy manager 3, a DC/DC converter controller 4 and a storage battery 5. The commercial power 1 and the hybrid energy 2 are connected with the input end of the hybrid energy manager 3, the output end of the hybrid energy manager 3 is connected with the input end of the DC/DC conversion controller 4, the output end of the DC/DC conversion controller 4 is connected with the load 6, and the storage battery 5 is connected with the output end of the DC/DC conversion controller 4 and the load 6.
The hybrid energy 2 comprises a diesel generator set 21, wind energy 22 and solar energy 23; wherein,
the diesel generator set 21 is a variable frequency direct current generator set and comprises a variable frequency engine, a permanent magnet synchronous motor and a control module, and the rotating speed of the engine can be automatically adjusted according to the change of load power, so that the output frequency and power of the generator are changed, and the generator set is enabled to work in the most energy-saving state all the time; mechanical power of the variable frequency engine is converted into a power supply with variable frequency and variable voltage, stable constant-voltage direct current is output through a PWM (pulse-width modulation) boosting rectification link, and a continuous, stable and uninterrupted power supply can be output even under the conditions of nonlinear load and unbalanced load; the permanent magnet synchronous motor adopts a bearingless structure, and the simple mechanical structure ensures that the motor has long service life, high efficiency and high reliability; the control module is matched with RS485, RS232 and USB communication ports, can realize remote monitoring or communication with a PC, completely realizes remote signaling, remote measuring and remote control functions, can read and write the operation parameters of the unit, and ensures the stable operation of the unit; the weight of the variable-frequency direct-current generator set is less than 100 kilograms, and the requirement of a communication operator for first-aid repair and maintenance and convenient carrying is met;
the wind energy 22 is a wind generating set;
the solar energy 23 is a photovoltaic power generation assembly;
the hybrid energy manager 3 comprises a wind energy and solar maximum power point tracking device 31, an AC/DC converter 32 and an automatic switching device 33; the seamless switching of the commercial power 1, the diesel generator set 21, the wind energy 22 and the solar energy 23 is realized by tracking the maximum power point of the wind energy 22 and the solar energy 23, the start and stop of the diesel generator set 21 can be controlled according to the power supply quality of the commercial power and the voltage of the storage battery, and the alternating current voltage provided by the commercial power 1, the wind energy 22 and the diesel generator set 21 can be converted into a first direct current voltage of 300V;
the DC/DC conversion controller 4 is used for converting the first direct-current voltage 300V provided by the hybrid energy manager 3 into a second direct-current voltage 48V to charge the storage battery 5 and control the charging and discharging of the storage battery 5;
the storage battery 5 is a lithium iron phosphate battery pack and is used for storing electric energy with a second direct current voltage of 48V provided by the DC/DC conversion controller 4; compared with the traditional lead-acid storage battery, the lithium ion battery has better temperature adaptability and charging characteristic, and has the advantages of small volume, light weight, high working voltage, large specific energy, long cycle life, no pollution, good safety performance and the like.
When the optimal output power of the wind energy 22 and the solar energy 23 is larger than the actual consumed power of the load 6, the DC/DC conversion controller 4 controls the storage battery 5 to store the redundant electric energy; when the optimal output power of the wind energy 22 and the solar energy 23 is smaller than the actual consumed power of the load 6, the DC/DC conversion controller 4 controls the storage battery 5 to release the stored electric energy to supplement the power difference, and when the release of the electric energy in the storage battery 5 is finished, the hybrid energy manager 3 starts the diesel generator set 21 to charge the storage battery 5 and bring the load 6.
The utility model discloses an intelligence oil-electricity hybrid power system for communication base station has four kinds of mode:
the first working mode is a mode of charging the storage battery 5 by wind energy 22 or solar energy 23 or commercial power 1 (alone or in combination), the time is 0-24 hours, at the moment, the diesel generator set 21 is in a stop standby state, the hybrid energy manager 3 performs maximum power tracking on the wind energy 22 and the solar energy 23 to control the wind energy 22 and the solar energy 23 to work alone or in cooperation, free wind energy 22 or solar energy 23 is utilized to the maximum extent, when the energy superposed by the wind energy 22 and the solar energy 23 cannot meet the requirements of the storage battery 5 for charging and loading 6, whether the commercial power 1 is normal is detected firstly, if the commercial power 1 is normal, the commercial power 1 is adopted as a supplementary power supply of the wind energy and the solar energy, if the output of the wind energy 22 or the solar energy 23 is lower than the initial value, the commercial power 1 is switched to the commercial power 1, the storage battery 5 is charged alone and the loading 6 is carried, if, switching to a second operating mode;
the second working mode is a mode that the diesel generator set 21 operates to charge the storage battery 5, and the operation time is 3-4 hours; at this time, the hybrid energy manager 3 performs maximum power tracking on the wind energy 22 and the solar energy 23, if a small amount of energy of the wind energy 22 and the solar energy 23 can be utilized, the diesel generator set 21 is adopted as a supplementary power supply of the wind energy 22 or the solar energy 23, and if the output of the wind energy 22 or the solar energy 23 is lower than the initial value, the variable frequency direct current generator set 21 charges the storage battery 5 independently and carries the load 6. Entering a third operating mode when the storage battery 5 is charged to 85% -100% of the set capacity and operates for the minimum charging time, or the operating time of the diesel generator set 21 has reached the set maximum charging operating time although the storage battery 5 is not charged to the predetermined capacity;
the third working mode is a storage battery discharging mode, and the running time is 12-20 hours; when the diesel generator set 21 runs for a set time (3-4 hours), a shutdown program is started, the diesel generator set is shut down after cooling delay to enter a standby mode, at the moment, the power of the load 6 is provided by discharging of the storage battery 5, the hybrid energy manager 3 performs maximum power tracking on the wind energy 22 and the solar energy 23, and partial or all load energy is dynamically supplemented in real time;
the fourth working mode is a forced diesel generator set 21 timing starting mode; when the wind energy 22 or the solar energy 23 or the commercial power 1 is normal all the time, and the diesel generator set 21 does not have a chance to run at full load for a long time, the hybrid energy manager 3 controls the diesel generator set 21 to be started up forcibly at regular time, at the moment, the output of the wind energy 22, the solar energy 23 and the commercial power 1 is turned off or reduced forcibly, the diesel generator set 21 can run at full load and run for a set minimum charging time, so that the starting performance and the full load carrying capacity of the diesel generator set 21 are tested, carbon deposition in a cylinder is removed through high temperature in the cylinder generated by the full load running, the possible bad phenomena of oil leakage of a smoke exhaust pipe and the like caused by the long-time non-full load running of the diesel generator set 21 are avoided, and the diesel generator set; by periodically testing the full load test operation, the diesel generator set 21 can be ensured to always maintain the best available working condition.
The utility model discloses a frequency conversion DC generating set among communication base station's intelligent oil-electricity hybrid power system changes output according to the load to the low load operating mode that will not energy-concerving and environment-protective converts the economic operating mode that is full-load basically into, has greatly reduced the oil consumption. The hybrid energy manager realizes seamless switching of wind energy, solar energy and a diesel generator set, has a maximum power tracking function, and outputs a stable and continuous high-quality power supply to a client. The experiment proves, the utility model discloses a hybrid power system has very high feasibility, can not only satisfy communication base station's power consumption requirement, has great meaning to human environmental protection cause moreover.
It will be appreciated by those skilled in the art that the above embodiments are only for illustrating the present invention and are not to be used as limitations of the present invention, and that changes and modifications to the above described embodiments will fall within the scope of the claims of the present invention as long as they are within the spirit and scope of the present invention.
Claims (4)
1. An intelligent oil-electricity hybrid power supply system of a communication base station comprises a commercial power supply, a hybrid energy source manager, a DC/DC conversion controller and a storage battery, and is characterized in that the hybrid energy source comprises a diesel generating set, wind energy and solar energy; the diesel generator is a variable frequency direct current generator set; the commercial power and the hybrid energy are connected with the input end of the hybrid energy manager, the output end of the hybrid energy manager is connected with the input end of the DC/DC conversion controller, the output end of the DC/DC conversion controller is connected with a load, and the storage battery is connected with the output end of the DC/DC conversion controller and the load;
the hybrid energy manager tracks the maximum power point of the wind energy and the solar energy, realizes seamless switching of the commercial power, the diesel generator set, the wind energy and the solar energy, can control the start and stop of the diesel generator set according to the power supply quality of the commercial power and the voltage of a storage battery, and can convert alternating current voltage provided by the commercial power, the wind energy and the diesel generator set into first direct current voltage;
the DC/DC conversion controller is used for converting the first direct-current voltage provided by the hybrid energy manager into a second direct-current voltage to charge the storage battery and controlling the charging and discharging of the storage battery;
the storage battery is used for storing the electric energy of the second direct current voltage provided by the DC/DC conversion controller.
2. The intelligent oil-electricity hybrid power system of the communication base station of claim 1, wherein the variable frequency DC generator set comprises a variable frequency engine, a permanent magnet synchronous motor and a control module.
3. The intelligent oil-electricity hybrid power system of the communication base station of claim 1, wherein the battery is a lithium iron phosphate battery pack.
4. The intelligent oil-electricity hybrid power supply system of the communication base station according to claim 1, wherein the first direct-current voltage is 300V, and the second direct-current voltage is 48V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320375684.4U CN203406636U (en) | 2013-06-27 | 2013-06-27 | Intelligent diesel-electric hybrid power supply system of communication base station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320375684.4U CN203406636U (en) | 2013-06-27 | 2013-06-27 | Intelligent diesel-electric hybrid power supply system of communication base station |
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| CN203406636U true CN203406636U (en) | 2014-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767263A (en) * | 2015-01-23 | 2015-07-08 | 曹进 | Energy-saving type electric vehicle charging station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104767263A (en) * | 2015-01-23 | 2015-07-08 | 曹进 | Energy-saving type electric vehicle charging station |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Qingpu Tianchen road 201712 Shanghai City Park of Zhangjiang High tech Zone No. 1633 Patentee after: Shanghai Cooltech Power Co., Ltd. Address before: 201703 Shanghai City Industrial Park, Qingpu District Songhua Road No. 688 Patentee before: Shanghai Cooltech Power Co., Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20171226 Address after: 350026 Haruki Road, Fuzhou, Cangshan District, Cangshan District, Fujian Province, No. 166 -1-2925 (self trade test area) Patentee after: Fujian taid Electric Power Equipment Co., Ltd. Address before: Qingpu Tianchen road 201712 Shanghai City Park of Zhangjiang High tech Zone No. 1633 Patentee before: Shanghai Cooltech Power Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140122 Termination date: 20210627 |
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| CF01 | Termination of patent right due to non-payment of annual fee |