CN103312004B - Intelligent oil-electricity hybrid power system of communication base station - Google Patents
Intelligent oil-electricity hybrid power system of communication base station Download PDFInfo
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- CN103312004B CN103312004B CN201310262590.0A CN201310262590A CN103312004B CN 103312004 B CN103312004 B CN 103312004B CN 201310262590 A CN201310262590 A CN 201310262590A CN 103312004 B CN103312004 B CN 103312004B
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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 invention discloses an intelligent oil-electricity hybrid power system of a communication base station. The intelligent oil-electricity hybrid power system comprises mains supply, hybrid energy, a hybrid energy manager, a DC/DC (direct current/direct current) conversion controller and a storage battery. The hybrid energy comprises a diesel generating set which is a variable-frequency direct-current generating set, wind energy and solar energy. The mains supply and the hybrid energy are connected with an input end of the hybrid energy manager. An output end of the hybrid energy manager is connected with an input end of the DC/DC conversion controller. An output end of the DC/DC conversion controller is connected with a load. The storage battery is connected with the load and the output end of the DC/DC conversion controller. By the intelligent oil-electricity hybrid power system, seamless switching between the variable-frequency direct-current generating set and renewable energy is realized, the renewable energy can be fully utilized while atmospheric pollution can be reduced, and great significance for human environment protection is achieved.
Description
Technical field
The present invention relates to a kind of electric hybrid power source system of intelligence oil of communication base station
Background technology
At present, generally diesel-electric set electric supply is adopted without civil power communication base station.The base station of more than 100,000 is had to be use diesel-electric set electric supply in the Middle East, north African, Southeast Asia and western China.The pattern that these base stations adopt two diesel engine generators to power in turn usually.Traditional without civil power base station supply power mode by two diesel generating sets 11,12, recloser (ATS) 20, storage battery 30 and DC voltage control cabinet 40 form (as shown in Figure 1).Recloser 20 controls two diesel generating sets 11,12 and replaces accumulators 30 and charge.This traditional diesel generating set is when communication base station uses, and owing to being in low load condition for a long time, relative energy consumption is comparatively large, and efficiency is lower, and carbon emission amount is large, is unfavorable for environmental protection.
Wind energy and solar energy are the most ripe renewable energy resources of current technological development.But, the electric energy power that the uncertainty of wind resource and the noncontinuity of solar energy cause wind-driven generator and solar panel to export be pulsation with discrete, do not controlled to be directly used in the production of people and the needs of household electricity.Therefore these novel energies need independent Configuration Control Unit could access energy mix system, cost intensive.
Summary of the invention
The object of the invention is the defect overcoming prior art; there is provided a kind of intelligence of communication base station oil electric hybrid power source system; it achieve the seamless switching between frequency conversion DC generation unit and regenerative resource; while regenerative resource is effectively utilized; can also air pollution be reduced, human environment protection is significant.
The technical scheme realizing above-mentioned purpose is: a kind of electric hybrid power source system of intelligence oil of communication base station, comprise civil power, energy mix, energy mix manager, DC/DC switching controller and storage battery, wherein, described energy mix comprises diesel generating set, wind energy and solar energy; Described diesel engine generator is frequency conversion DC generation unit; Described civil power and energy mix are connected with the input of described energy mix manager, the output of described energy mix manager is connected with the input of described DC/DC switching controller, the output of described DC/DC switching controller is connected with load, and output and the load of described storage battery and described DC/DC switching controller are connected; Described energy mix manager realizes the seamless switching of civil power, diesel generating set, wind energy and solar energy and according to the start and stop of the voltage control diesel generating set of the power supply quality of civil power and storage battery, the alternating voltage that civil power, diesel generating set and wind energy provide can also be converted to the first direct voltage; Described DC/DC switching controller is used for the first direct voltage that described energy mix manager provides to be converted to the second direct voltage to described charge in batteries and controls the discharge and recharge of described storage battery; The electric energy of second direct voltage of described storage battery for storing described DC/DC switching controller and providing; When the optimum output power of described wind energy and solar energy is greater than the actual power consumption of load, described DC/DC switching controller controls the unnecessary electric energy of described accumulators store; When the optimum output power of wind energy and solar energy is less than the actual power consumption of load, described DC/DC switching controller controls the electric energy supplemental capacity difference that the release of described storage battery stores, at the end of electric energy release in storage battery, described energy mix manager starts described diesel generating set to charge in batteries and bringing onto load.
The energy-save oil electricity hybrid power source system of above-mentioned communication base station, wherein, described energy mix manager comprises wind energy, solar maximum power point tracking means, AC/DC transducer and automatic switching control equipment.
The electric hybrid power source system of intelligence oil of above-mentioned communication base station, wherein, described frequency conversion DC generation unit comprises frequency conversion engine, permagnetic synchronous motor and control module.
The electric hybrid power source system of intelligence oil of above-mentioned communication base station, wherein, described storage battery is ferric phosphate lithium cell group.
The electric hybrid power source system of intelligence oil of above-mentioned communication base station, wherein, described first direct voltage is 300V, and described second direct voltage is 48V.
The electric hybrid power source system of intelligence oil of communication base station of the present invention, with frequency conversion direct current diesel generating set for core, the different energy is regulated scheduling by unified controller, mutually supply its generating disappearance, realize the seamless switching between frequency conversion DC generation unit and regenerative resource, power output can be adjusted to optimum state automatically, generating efficiency is greatly enhanced, significantly reduce oil consumption, energy-conservationly reach 30% ~ 70%, and the reliability of equipment is improved, the useful life of equipment is able to very big growth, base station air conditioner is no longer needed to carry out auxiliary temperature-reducing in use procedure, not only the hardware investment cost of equipment is minimized, and daily maintenance cost is also minimized.With traditional by single diesel-electric set electric supply Method compare; except cost reduces, more can provide high-quality and stable electricity, while regenerative resource is effectively utilized to client; also the discharge of decreasing pollution thing, is significant to human environment protection.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the power-supply system of the communication base station of prior art;
Fig. 2 is the structured flowchart of the electric hybrid power source system of intelligence oil of communication base station of the present invention;
Fig. 3 is the schematic diagram of the energy mix manager of the oily electric hybrid power source system of communication base station of the present invention intelligence.
Embodiment
In order to make those skilled in the art can understand technical scheme of the present invention better, below in conjunction with accompanying drawing, its embodiment is described in detail:
Refer to Fig. 2 and Fig. 3, the electric hybrid power source system of intelligence oil of communication base station of the present invention, comprises civil power 1, energy mix 2, energy mix manager 3, DC/DC switching controller 4 and storage battery 5.Civil power 1 and energy mix 2 are connected with the input of energy mix manager 3, the output of energy mix manager 3 is connected with the input of DC/DC switching controller 4, the output of DC/DC switching controller 4 is connected with load 6, and output and the load 6 of storage battery 5 and DC/DC switching controller 4 are connected.
Energy mix 2 comprises diesel generating set 21, wind energy 22 and solar energy 23; Wherein,
Diesel generating set 21 is frequency conversion DC generation unit and comprises frequency conversion engine, permagnetic synchronous motor and control module, it can adjust the rotating speed of engine automatically according to the change of bearing power, thus change output frequency and the power of generator, make generating set always work in the most energy-conservation state; The machine power of frequency conversion engine is converted to the power supply of variable frequency and variable voltage, through the constant voltage DC electricity of PWM boosting rectification link stable output, even if when nonlinear load and unbalanced load, lasting, stable, continual power supply also can be exported; Permagnetic synchronous motor adopts bearing-free structure, and simple mechanical structure makes motor have the long-life, high efficiency and high reliability; Adaptive RS485, RS232 and USB communication port of control module, can realize remote monitoring or with PC communication, realize remote signalling, telemetry and telecommand function completely, can the operational factor of reading and writing unit, ensure the stable operation of unit; The weight of frequency conversion DC generation unit is less than 100 kilograms, meets common carrier repairing and safeguards the requirement of being convenient to carry;
Wind energy 22 is wind turbine generator;
Solar energy 23 is photovoltaic electrification component;
Energy mix manager 3 comprises wind energy, solar maximum power point tracking means 31, AC/DC transducer 32 and automatic switching control equipment 33; By realizing the seamless switching of civil power 1, diesel generating set 21, wind energy 22 and solar energy 23 to the MPPT maximum power point tracking of wind energy 22, solar energy 23, and according to the start and stop of the voltage control diesel generating set 21 of the power supply quality of civil power and storage battery, the alternating voltage that civil power 1, wind energy 22 and diesel generating set 21 provide can also be converted to the first direct voltage 300V;
DC/DC switching controller 4 is converted to the second direct voltage 48V accumulators 5 for the first direct voltage 300V provided by energy mix manager 3 and charges and control the discharge and recharge of storage battery 5;
Storage battery 5 is ferric phosphate lithium cell group, for storing the electric energy of the second direct voltage 48V that DC/DC switching controller 4 provides; Compare traditional lead acid accumulator, lithium ion battery has better thermal adaptability and charge characteristic, and have that volume is little, quality is light, operating voltage is high, specific energy is large, have extended cycle life, the plurality of advantages such as pollution-free and security performance is good.
When the optimum output power of wind energy 22 and solar energy 23 is greater than the actual power consumption of load 6, DC/DC switching controller 4 controls storage battery 5 and stores unnecessary electric energy; When the optimum output power of wind energy 22 and solar energy 23 is less than the actual power consumption of load 6, DC/DC switching controller 4 controls storage battery 5 and discharges the electric energy supplemental capacity difference stored, at the end of electric energy release in storage battery 5, energy mix manager 3 starts diesel generating set 21 pairs of storage batterys 5 and charges and bringing onto load 6.
The electric hybrid power source system of intelligence for communication base station oil of the present invention has four kinds of mode of operations:
The first mode of operation be wind energy 22 or solar energy 23 or civil power 1(separately or combination) accumulators 5 charge mode, time is 0 ~ 24 hour, now diesel generating set 21 is in shutdown holding state, energy mix manager 3 pairs of wind energies 22 and solar energy 23 carry out maximal power tracing, to control wind energy 22 and solar energy 23 works alone or synergistically, maximally utilise free wind energy 22 or solar energy 23, when the energy that wind energy 22 and solar energy 23 superpose can not meet the needs of the charging of storage battery 5 and load 6, first whether normally civil power 1 is detected, if civil power 1 is normal, adopt civil power 1 as the supplementary power supply of wind energy and solar energy, if wind energy 22 or solar energy 23 export all lower than initial value, then be switched to civil power 1, separately storage battery 5 is charged and bringing onto load 6 by civil power 1, if civil power 1 is abnormal or power-off, then be switched to the second mode of operation,
The second mode of operation is that diesel generating set 21 runs accumulators 5 charge mode, and running time is 3 ~ 4 hours; Now energy mix manager 3 pairs of wind energies 22 and solar energy 23 carry out maximal power tracing, if the wind energy energy 22 and solar energy 23 have a small amount of energy to utilize, then adopt diesel generating set 21 as the supplementary power supply of the wind energy energy 22 or solar energy 23, if wind energy 22 or solar energy 23 export all lower than initial value, then separately storage battery 5 is charged and bringing onto load 6 by frequency conversion DC generation unit 21.When storage battery 5 charging reaches 85% ~ 100% of setting capacity and run the minimum charging interval, or although storage battery 5 charges and does not reach predetermined volumes, but when diesel generating set 21 has reached the longest charge operation time of setting running time, enter the third mode of operation;
The third mode of operation is battery discharging mode, and running time is 12 ~ 20 hours; When diesel generating set 21 has run the time (3 ~ 4 hours) of setting, enter shutdown procedure, shut down after supercooling time delay and enter standby mode, the power of now load 6 is discharged by storage battery 5 and provides, energy mix manager 3 pairs of wind energies 22 and solar energy 23 carry out maximal power tracing, dynamically supplement part or all load energy in real time;
4th kind of mode of operation forces diesel generating set 21 timing start-up pattern, when wind energy 22 or solar energy 23 or civil power 1 always normal, diesel generating set 21 have no chance for a long time full load run time, the timed and forced start of diesel generating set 21 is controlled by energy mix manager 3, now be forced shutdown or reduce wind energy 22, the output of solar energy 23 and civil power 1, preferential guarantee diesel generating set 21 full load can run and run the minimum charging interval of setting, to check startability and the full load load capacity of diesel generating set 21, and by high temperature in the cylinder of full load operation generation, remove carbon-deposits the cylinder, stop because diesel generating set 21 does not have full load to run the bad phenomenon such as issuable smoke exhaust pipe leakage of oil for a long time, and after storage battery 5 is charged, diesel generating set 21 autostop, by the inspection regularly with full load trial run, can guarantee that diesel generating set 21 maintains best available operating mode all the time.
Frequency conversion DC generation unit in the electric hybrid power source system of intelligence oil of communication base station of the present invention changes power output according to load, thus the low load behavior of not energy-conserving and environment-protective is converted to basic fully loaded economic condition, significantly reduces oil consumption.Energy mix manager realizes the seamless switching of wind energy, solar energy and diesel generating set, possesses maximal power tracing function, to client stable output, lasting high quality power supply.Experiment proves, hybrid power source system of the present invention has very high feasibility, can not only meet the electricity consumption requirement of communication base station, and be significant to the environmental protection cause of the mankind.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the present invention is described, and be not used as limitation of the invention, as long as in spirit of the present invention, all will drop in Claims scope of the present invention the change of the above embodiment, modification.
Claims (4)
1. the electric hybrid power source system of intelligence oil of communication base station, comprise civil power, energy mix, energy mix manager, DC/DC switching controller and storage battery, it is characterized in that, described energy mix comprises diesel generating set, wind energy and solar energy; Described diesel generating set is frequency conversion DC generation unit; Described civil power and energy mix are connected with the input of described energy mix manager, the output of described energy mix manager is connected with the input of described DC/DC switching controller, the output of described DC/DC switching controller is connected with load, and output and the load of described storage battery and described DC/DC switching controller are connected;
Described energy mix manager realizes the seamless switching of civil power, diesel generating set, wind energy and solar energy and according to the start and stop of the voltage control diesel generating set of the power supply quality of civil power and storage battery, the alternating voltage that civil power, diesel generating set and wind energy provide can also be converted to the first direct voltage;
Described DC/DC switching controller is used for the first direct voltage that described energy mix manager provides to be converted to the second direct voltage to described charge in batteries and controls the discharge and recharge of described storage battery;
The electric energy of second direct voltage of described storage battery for storing described DC/DC switching controller and providing;
When the optimum output power of described wind energy and solar energy is greater than the actual power consumption of load, described DC/DC transducer controls the unnecessary electric energy of described accumulators store; When the optimum output power of wind energy and solar energy is less than the actual power consumption of load, described DC/DC switching controller controls the electric energy supplemental capacity difference that the release of described storage battery stores, at the end of electric energy release in storage battery, described energy mix manager starts described diesel generating set to charge in batteries and bringing onto load;
The electric hybrid power source system of intelligence oil of described communication base station has four kinds of mode of operations:
The first mode of operation be wind energy or solar energy or civil power separately or combination to described battery charging mode, time is 0 ~ 24 hour, now described diesel generating set is in shutdown holding state, described energy mix manager carries out maximal power tracing to wind energy and solar energy, to control wind energy and solar energy works alone or synergistically, maximally utilise free wind energy or solar energy, when the energy of wind energy and solar energy superposition can not meet the needs of the charging of described storage battery and load, first whether normally civil power is detected, if civil power is normal, adopt civil power as the supplementary power supply of wind energy and solar energy, if wind energy or solar energy export all lower than initial value, then be switched to civil power, by civil power separately to described charge in batteries and bringing onto load, if civil power is abnormal or power-off, then be switched to the second mode of operation,
The second mode of operation is that described diesel generating set runs to described battery charging mode, and running time is 3 ~ 4 hours, now described energy mix manager carries out maximal power tracing to wind energy and solar energy, if the wind energy energy and solar energy have a small amount of energy to utilize, then adopt described diesel generating set as the supplementary power supply of the wind energy energy or solar energy, if wind energy or solar energy export all lower than initial value, then by described diesel generating set separately to described charge in batteries and bringing onto load, reach 85% ~ 100% of setting capacity when described charge in batteries and run the minimum charging interval, or although described charge in batteries does not reach predetermined volumes, when but described diesel generating set has reached the longest charge operation time of setting running time, enter the third mode of operation,
The third mode of operation is described battery discharging mode, and running time is 12 ~ 20 hours; When described diesel generating set has run 3 ~ 4 hours time of setting, enter shutdown procedure, shut down after supercooling time delay and enter standby mode, the power of now load is provided by described battery discharging, described energy mix manager carries out maximal power tracing to wind energy and solar energy, dynamically supplements part or all load energy in real time;
4th kind of mode of operation forces described diesel generating set timing start-up pattern, when wind energy or solar energy or civil power always normal, described diesel generating set have no chance for a long time full load run time, the timed and forced start of described diesel generating set is controlled by described energy mix manager, now be forced shutdown or reduce wind energy, the output of solar energy and civil power, the described diesel generating set of preferential guarantee full load can run and run the minimum charging interval of setting, to check startability and the full load load capacity of described diesel generating set, and by high temperature in the cylinder of full load operation generation, remove carbon-deposits the cylinder, stop because described diesel generating set does not have full load to run issuable smoke exhaust pipe leakage of oil bad phenomenon for a long time, and after described storage battery is charged, described diesel generating set autostop, by the inspection regularly with full load trial run, can guarantee that described diesel generating set maintains best available operating mode all the time,
Described storage battery is ferric phosphate lithium cell group.
2. the electric hybrid power source system of intelligence oil of communication base station according to claim 1, it is characterized in that, described energy mix manager comprises wind energy, solar maximum power point tracking means, AC/DC transducer and automatic switching control equipment.
3. the electric hybrid power source system of intelligence oil of communication base station according to claim 1, it is characterized in that, described frequency conversion DC generation unit comprises frequency conversion engine, permagnetic synchronous motor and control module.
4. the electric hybrid power source system of intelligence oil of communication base station according to claim 1, it is characterized in that, described first direct voltage is 300V, and described second direct voltage is 48V.
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| CN104682543B (en) * | 2015-03-17 | 2019-05-07 | 四川省辛普森动力设备有限公司 | A kind of mixed power supply system based on DC frequency-changing generating set |
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| CN104993580B (en) * | 2015-07-28 | 2017-03-08 | 福州中亘软件有限公司 | Oil electricity mixed DC electric supply installation |
| CN106100112B (en) * | 2016-08-26 | 2019-10-11 | 上海科泰电源股份有限公司 | A kind of communication base station air-cooled diesel exchange unit control system |
| CN107134843A (en) * | 2017-05-17 | 2017-09-05 | 上海科泰电源股份有限公司 | A kind of energy mix management system for communication base station |
| CN107171434A (en) * | 2017-06-09 | 2017-09-15 | 南京邮电大学 | A kind of electric power system for oil field |
| CN109193672B (en) * | 2018-10-11 | 2020-06-23 | 广西大学 | Optimization and control double-layer cooperative two-stage voltage control method |
| CN111130212A (en) * | 2020-02-21 | 2020-05-08 | 中国铁塔股份有限公司 | Standby power control device |
| CN113453088B (en) * | 2021-08-31 | 2021-12-07 | 深圳天邦达科技有限公司 | Emergency combined backup power supply integrated equipment for communication base station |
| CN113839460A (en) * | 2021-09-02 | 2021-12-24 | 华为数字能源技术有限公司 | Power supply system, power supply method and power supply device |
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