CN203707864U - Novel hybrid-energy 48V direct-current frequency-conversion power generation system - Google Patents
Novel hybrid-energy 48V direct-current frequency-conversion power generation system Download PDFInfo
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- CN203707864U CN203707864U CN201320817322.6U CN201320817322U CN203707864U CN 203707864 U CN203707864 U CN 203707864U CN 201320817322 U CN201320817322 U CN 201320817322U CN 203707864 U CN203707864 U CN 203707864U
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Abstract
The utility model relates to a novel hybrid-energy 48V direct-current frequency-conversion power generation system, and the system comprises an intermediate-frequency permanent-magnet direct-current generator with a variable-frequency oil machine, an electronic ATS, a storage battery, and an oil machine controller. The electronic ATS is connected to the intermediate-frequency permanent-magnet direct-current generator, an AC/DC converter and a DC/DC converter through buses. The input end of the AC/DC converter is connected to a commercial power supply device and a wind-energy power supply device. The input end of the DC/DC converter is connected to a solar power supply device. The electronic ATS is connected to a load and a storage battery through direct-current buses. Moreover, the power supply mode is switched according to the sequence of the solar power supply device, the wind-energy power supply device, the commercial power supply device, and the intermediate-frequency permanent-magnet direct-current generator with the variable-frequency oil machine. The oil machine controller is connected with the variable-frequency oil machine and the electronic ATS, and is used for detecting the states of the current of a power supply load, the commercial power, the wind-energy power supply, the solar power supply, and the storage battery. The system provided by the utility model can greatly reduce the fuel consumption, emission pollution and the maintenance cost of a diesel generating set.
Description
Technical field
The utility model relates to communication base station DC power-supply system, is specifically related to a kind of Novel hybrid energy 48V DC frequency-changing electricity generation system.
Background technology
Due to a lot of communication base station remotenesses, without commercial power supply, thereby generally adopt diesel-electric set electric supply.The whole world comprises that the Middle East, north African, Southeast Asia and western China have about 500,000 base stations to adopt diesel-electric set electric supply at present.These greatest problem that adopt the diesel generating set of conventional art are that energy consumption and discharge are higher, do not meet the world trends of modern energy conservation and emission reduction.
Be illustrated in figure 1 conventional AC electricity generation system, when without civil power, conventional diesel generating set adopts the fixed motor alternator of oil machine band frequently to send after alternating voltage, to AC/DC transducer, is that 48V DC-voltage supply pond charging and traffic load use through power conversion through mechanical ATS input voltage; In the time having civil power, electric main is directly through the work of mechanical ATS input AC/DC transducer; In the time that oil machine is worked, because electric energy is through repeatedly conversion, electric power system efficiency is low, cost is high, and causes system reliability to decline.
Utility model content
The purpose of this utility model is to provide a kind of Novel hybrid energy 48V DC frequency-changing electricity generation system, solves traditional electric power system in the high problem of efficiency low cost.
A kind of Novel hybrid energy 48V DC frequency-changing electricity generation system, comprises intermediate frequency mag-dynamo, electronics ATS, storage battery and oil machine controller with frequency conversion oil machine; Described electronics ATS is connected to respectively intermediate frequency mag-dynamo, AC/DC transducer and DC/DC transducer by bus, the input that the input of AC/DC transducer is connected to mains power supply and powered by wind energy device, DC/DC transducer is connected to solar power supply apparatus, electronics ATS is connected to respectively load and storage battery by DC bus, and according to solar power supply apparatus, powered by wind energy device, mains power supply, switch powering mode with the order of the intermediate frequency mag-dynamo of frequency conversion oil machine; Described oil machine controller connects respectively frequency conversion oil machine and electronics ATS, for detection of the state of power supply load current, civil power, powered by wind energy, solar powered and storage battery.
Compared with prior art, the beneficial effects of the utility model are: can significantly reduce fuel consume, exhaust emission and the maintenance cost of diesel generating set, possess higher Social benefit and economic benefit.
Brief description of the drawings
Fig. 1 is conventional AC electricity generation system.
Fig. 2 is the connection diagram of a kind of Novel hybrid energy 48V of the utility model DC frequency-changing electricity generation system.
Fig. 3 is that tradition is determined frequency generator output voltage dynamic characteristic figure.
Fig. 4 is a kind of Novel hybrid energy 48V of the utility model DC frequency-changing electricity generation system intermediate frequency mag-dynamo output voltage dynamic characteristic figure used.
Fig. 5 is the circuit structure diagram of a kind of Novel hybrid energy 48V of the utility model DC frequency-changing electricity generation system intermediate frequency mag-dynamo used.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Fig. 2 shows a kind of Novel hybrid energy 48V of the utility model DC frequency-changing electricity generation system: a kind of Novel hybrid energy 48V DC frequency-changing electricity generation system, comprises intermediate frequency mag-dynamo, electronics ATS, storage battery and oil machine controller with frequency conversion oil machine; Described electronics ATS is connected to respectively intermediate frequency mag-dynamo, AC/DC transducer and DC/DC transducer by bus, the input that the input of AC/DC transducer is connected to mains power supply and powered by wind energy device, DC/DC transducer is connected to solar power supply apparatus, electronics ATS is connected to respectively load and storage battery by DC bus, and according to solar power supply apparatus, powered by wind energy device, mains power supply, switch powering mode with the order of the intermediate frequency mag-dynamo of frequency conversion oil machine; Described oil machine controller connects respectively frequency conversion oil machine and electronics ATS, for detection of the state of power supply load current, civil power, powered by wind energy, solar powered and storage battery.
Described intermediate frequency mag-dynamo is F26-00-00 type 12KV/48V generator, and the F26-00-00 type 12KV/48V generator of universe prestige science and technology is specially adapted to this energy mix 48V DC frequency-changing electricity generation system.
Specific works pattern description is as follows: in the time that electronics ATS detects that solar power supply apparatus power supply is sufficient, cut off other energy (for example send control signal to oil machine controller and stop diesel generating set work), using solar energy is storage battery and load; In the time that solar power supply apparatus can not provide enough electric power for load, whether have enough electric power, if had, switch to powered by wind energy if detecting powered by wind energy device, and using wind energy is storage battery and load supplying; Also can use solar energy and wind energy is system power supply simultaneously simultaneously; If the power output of solar power supply apparatus and powered by wind energy device is less, when both sums can not provide sufficient electric power for load, if battery capacity, more than 50%, is load supplying by battery discharging work; If the power output of solar power supply apparatus and powered by wind energy device is less, and battery capacity is below 50%, and system detects whether there is civil power, if there is civil power, system is switched to mains-supplied pattern; If the power output of solar energy and wind energy is less, battery capacity is below 50%, and without civil power, electronics ATS sends control signal and starts the intermediate frequency mag-dynamo with frequency conversion oil machine, is at this moment powered by the intermediate frequency mag-dynamo with frequency conversion oil machine.
Therefore the present invention is preferential uses various green energy resources that electric power is provided, and the discharge of reduction system and fuel consume only, in the time of power shortage that solar energy and wind energy provide, just start diesel engine unit or access civil power.
In the time of mains power supply and the work of powered by wind energy device, the alternating current that electric main or wind-driven generator send inputs to AC/DC rectifier power source switch, and the alternating voltage of conversion is 48V direct voltage, is load and storage battery power supply; In the time that solar power supply apparatus is worked, the direct voltage of output is transformed to the direct voltage of 48V through DC/DC transducer, is load and storage battery power supply.
In the time that the intermediate frequency mag-dynamo with frequency conversion oil machine is worked, for ensureing necessary fuel-economizing, energy-saving effect, it is ± 20% that engine frequency conversion scope is set; Be this frequency conversion scope of coupling, by the optimal design to generator and choose reasonable permanent magnetism magnetic material, it is also 20% left and right to fully loaded voltage drop that generator zero load is set simultaneously.If Fig. 3 and Fig. 4 are the output voltage characteristic curve of generator under different loads and different rotating speeds.Its operational mode is: 1. the direct accumulators of generator output dc voltage and load supplying.2. in the time that load increases, according to the load characteristic with generator, its output voltage will decline, system detects after this voltage drop, feed back this load condition oil feeder controller, control oil machine and improve rotating speed, increase input power, to improve generator output voltage, and provide larger charging current accumulators.3. in the time that load current reduces, based on identical principle, generator output voltage rises, system is fed back this load condition oil feeder controller equally, control oil machine and reduce rotating speed, reduce input power, reduce direct current machine output voltage simultaneously, and reduce charging current.4. as previously mentioned, the engine of this programme is operated in minimum speed in the time of zero load, and full load works in maximum speed.By regulating the rotating speed of engine, and then the output voltage of regulator generator, and finally reach the object that regulates charge in batteries electric current.Because oil machine is operated in frequency conversion state, i.e. high speed rotating when heavy duty, low cruise when underloading, therefore can greatly improve system effectiveness, improves system fuel consumption, reduces entirety discharge, reaches the object of environment protecting and power-saving.
As shown in Figure 5, be the structure principle chart of intermediate frequency DC permanent magnetic generator, in it, comprise intermediate frequency permanent magnet generator and three-phase chopper circuit, can direct output of DC current press.Conventionally in DC generator, all contain the low-frequency voltage ripple of 50Hz, the voltage ripple of this low frequency needs the energy storage devices such as jumbo electric capacity, or after connect DC/DC transducer and can eliminate.And the generator of this programme is operated in intermediate frequency 400Hz, thereby can greatly reduce voltage ripple, reduce the use of filter capacitor.This three-phase chopper circuit is usually operated under all-pass state, is equivalent to three-phase bridge rectification circuit, does not produce any switch noise; Work as load dump, when generator output voltage rises and exceedes stop voltage, the ON time of every phase is dwindled in chopper circuit work, therefore can reduce rapidly output voltage to rated value.
The utility model utilizes original storage battery inhibitory action natural to intermediate frequency voltage ripple in system, eliminate this voltage of intermediate frequency ripple, the direct voltage of output smoothing, because pulsating voltage and the electric current of lead acid accumulator intermediate frequency in the time charging are of value to battery charge efficiency and improve battery life, adopt the combination of DC generator and storage battery to be conducive to the work of electric power system simultaneously.
The utility model has been cancelled traditional AC/DC power rectification module.Original AC/DC power rectification module efficiency is generally 90% left and right, and self need consume mass energy while work; And module works near HF switch state 200KHZ, bring larger electromagnetism EMI to disturb to whole system.For reducing this High-frequency Interference, also improve the cost of system.Thereby cancelling after this AC/DC power rectification module, not only entire system efficiency can promote approximately 10%, more can eliminate original high-frequency noise comprehensively, the stability of raising system operation, and reduce system cost and reliability simultaneously.
In sum, the utlity model has efficiency high, simple in structure, system cost is low, advantage that EMC Electro Magnetic Compatibility is good etc., and the discharge of reduction system greatly reaches the requirement of environmental protection, has huge society and economic benefit.
Claims (1)
1. a Novel hybrid energy 48V DC frequency-changing electricity generation system, is characterized in that: comprise intermediate frequency mag-dynamo, electronics ATS, storage battery and oil machine controller with frequency conversion oil machine; Described electronics ATS is connected to respectively intermediate frequency mag-dynamo, AC/DC transducer and DC/DC transducer by bus, the input that the input of AC/DC transducer is connected to mains power supply and powered by wind energy device, DC/DC transducer is connected to solar power supply apparatus, and electronics ATS is connected to respectively load and storage battery by DC bus; Described oil machine controller connects respectively frequency conversion oil machine and electronics ATS.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817322.6U CN203707864U (en) | 2013-12-07 | 2013-12-07 | Novel hybrid-energy 48V direct-current frequency-conversion power generation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320817322.6U CN203707864U (en) | 2013-12-07 | 2013-12-07 | Novel hybrid-energy 48V direct-current frequency-conversion power generation system |
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| Publication Number | Publication Date |
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| CN203707864U true CN203707864U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320817322.6U Expired - Fee Related CN203707864U (en) | 2013-12-07 | 2013-12-07 | Novel hybrid-energy 48V direct-current frequency-conversion power generation system |
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| CN (1) | CN203707864U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682543A (en) * | 2015-03-17 | 2015-06-03 | 四川省辛普森动力设备有限公司 | Hybrid power supply system based on direct-current frequency variable power generator set |
| CN111064194A (en) * | 2020-01-08 | 2020-04-24 | 成都天通电子科技有限公司 | High-reliability mobile variable-frequency power generation hybrid energy system |
| CN111693888A (en) * | 2020-08-04 | 2020-09-22 | 上海钧正网络科技有限公司 | Power performance detection device |
-
2013
- 2013-12-07 CN CN201320817322.6U patent/CN203707864U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682543A (en) * | 2015-03-17 | 2015-06-03 | 四川省辛普森动力设备有限公司 | Hybrid power supply system based on direct-current frequency variable power generator set |
| 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 |
| CN111064194A (en) * | 2020-01-08 | 2020-04-24 | 成都天通电子科技有限公司 | High-reliability mobile variable-frequency power generation hybrid energy system |
| CN111693888A (en) * | 2020-08-04 | 2020-09-22 | 上海钧正网络科技有限公司 | Power performance detection device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20181207 |