CN203039420U - Adaptive control low pressure power supply apparatus possessing a plurality of renewable energy sources - Google Patents
Adaptive control low pressure power supply apparatus possessing a plurality of renewable energy sources Download PDFInfo
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- CN203039420U CN203039420U CN 201320036096 CN201320036096U CN203039420U CN 203039420 U CN203039420 U CN 203039420U CN 201320036096 CN201320036096 CN 201320036096 CN 201320036096 U CN201320036096 U CN 201320036096U CN 203039420 U CN203039420 U CN 203039420U
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Abstract
The utility model discloses an adaptive control low pressure power supply apparatus possessing a plurality of renewable energy sources, comprising a power supply unit, a power storage unit, an output unit and a control unit. The power supply unit comprises a plurality of renewable energy generating units used for outputting direct voltages with same specification and an automatic transfer switch used for controlling connection states of each renewable energy generating unit; the power storage unit comprises an accumulator, a charging circuit, a first direct current-direct current conversion module, a discharging circuit and a second direct current-direct current conversion module; and the control unit comprises a controller, a generating voltage detection module, an accumulator detection module and a load bus voltage detection module. The adaptive control low pressure power supply apparatus can realize adaptive power supply of generating devices with various specifications, can realize power supply, power storage and power utilization adaptive intelligent control in a power supply process, can fully utilize a plurality of green and renewable energy sources such as wind energy, solar energy, etc. to realize zero discharge power supply and possesses the advantages of simple connection, safe and reliable use, convenient operation, energy saving and environmental protection, etc.
Description
Technical field
The utility model relates to the renewable energy power generation technical field, is specifically related to a kind of low tension feed unit with multiple regenerative resource adaptive control.
Background technology
Along with the raising of expanding economy, quality of life and the expansion of economic activity, in the low area that reaches away from electrical network of power supply quality, the need for electricity of government, family and Field Operation Location and power consumption equipment increases year by year, simultaneously the rated output voltage multi-sizeization of various zero discharge types family power plant for emergency.In the net electric power system, all require the output specification unanimity of various generating equipments in the multiple regenerative resource of prior art, in case after adopting the zero discharge type generating equipment of different size, the adaptability of multiple generating equipment electric energy output just becomes problem.In addition, when realizing multiple regenerative resource power supply, existing from the net electric power system can not effectively realize powering, adjusting and the scheduling of electric power storage, electricity consumption.
The utility model content
The technical problems to be solved in the utility model provides a kind of adaptation power supply that can realize plurality of specifications renewable energy power generation equipment, the self-adapting intelligent control of power supply in system's power supply process, electric power storage, electricity consumption, can take full advantage of multiple green regenerative energy sources such as wind energy, solar energy and realize the zero discharge power supply, connect the low tension feed units with multiple regenerative resource adaptive control simple, safe and reliable, easy to operate, energy-conserving and environment-protective.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of low tension feed unit with multiple regenerative resource adaptive control comprises power supply unit, electricity accumulating unit, output unit and control unit; Described power supply unit comprises a plurality of renewable energy power generation unit for output same size direct voltage and is used for the automatic transfer switch of each renewable energy power generation unit connected state of control; Described electricity accumulating unit comprises storage battery, charging circuit, the first DC-to-DC modular converter, discharge circuit, the second DC-to-DC modular converter, described storage battery links to each other with the output of automatic transfer switch by charging circuit, the first DC-to-DC modular converter successively, and described storage battery links to each other with the output of automatic transfer switch by discharge circuit, the second DC-to-DC modular converter successively; The input of described output unit links to each other with the output of automatic transfer switch, and the output of output unit is outside load power supply by load bus; Described control unit comprises controller, the generating voltage detection module, storage battery detection module and load bus voltage detection module, described storage battery detection module comprises the battery tension detection module for detection of the storage battery output voltage, for detection of the storage battery busbar voltage detection module of storage battery busbar voltage in the charging circuit with for detection of the charge in batteries current detection module of charging current in the charging circuit, the quantity of described generating voltage detection module is corresponding one by one with the renewable energy power generation unit, and described generating voltage detection module links to each other with the voltage output end of corresponding renewable energy power generation unit, described battery tension detection module links to each other with the output of storage battery, described storage battery busbar voltage detection module, the charge in batteries current detection module links to each other with charging circuit respectively, described generating voltage detection module, the battery tension detection module, storage battery busbar voltage detection module, the charge in batteries current detection module, the load bus voltage detection module links to each other with the input of controller respectively, the output of described controller respectively with automatic transfer switch, charging circuit, discharge circuit links to each other, and described load bus voltage detection module links to each other with the load bus of described output unit output; Described controller is controlled the connected state of each renewable energy power generation unit, road according to the information of voltage of each road generating voltage detection module output by automatic transfer switch, and described controller is controlled the operating state of charging circuit and discharge circuit respectively according to the current information of the information of voltage of battery tension detection module, storage battery busbar voltage detection module, the output of load bus voltage detection module and the output of charge in batteries current detection module.
As further improvement in the technical proposal:
Described output unit comprises the DC-AC modular converter, family power interface and a plurality of load switch module, the input of described DC-AC modular converter links to each other with automatic transfer switch, the output of described DC-AC modular converter links to each other with power interface with the family, described family is inserted load bus by a load switch module with one tunnel load respectively with the load bus of the output of power interface, described family is with the load current detection module that is equipped with between power interface and each the load switch module for detection of this road loaded work piece electric current, described load current detection module links to each other with the input of controller, the control end of described load switch module links to each other with the output of controller respectively, and described controller passes through the connected state of each road load of load switch module controls according to the current information of each load current detection module output.
A plurality of renewable energy power generations unit of described power supply unit comprises solar light-heat power-generation unit, wind power generation unit and solar energy power generating unit, described solar light-heat power-generation unit comprises solar light-heat power-generation equipment, the first AC-DC voltage transformation module, the 3rd DC-to-DC modular converter that connects successively, and the output of described the 3rd DC-to-DC modular converter links to each other with automatic transfer switch; Described wind power generation unit comprises wind power plant, the second AC-DC voltage transformation module, the 4th DC-to-DC modular converter that connects successively, and the output of described the 4th DC-to-DC modular converter links to each other with automatic transfer switch; Described solar energy power generating unit comprises solar energy power generating equipment, the 5th DC-to-DC modular converter that connects successively, and the output of described the 5th DC-to-DC modular converter links to each other with automatic transfer switch.
The described first DC-to-DC modular converter, the second DC-to-DC modular converter, the 3rd DC-to-DC modular converter, the 4th DC-to-DC modular converter, the 5th DC-to-DC modular converter is PWM control type DC-to-DC voltage conversion circuit, described DC-AC modular converter is PWM control type DC-AC voltage switching circuit, the described first AC-DC voltage transformation module, the second AC-DC voltage transformation module is PWM control type AC-DC voltage conversion circuit, the described first DC-to-DC modular converter, the second DC-to-DC modular converter, the 3rd DC-to-DC modular converter, the 4th DC-to-DC modular converter, the 5th DC-to-DC modular converter, the DC-AC modular converter, the first AC-DC voltage transformation module, the second AC-DC voltage transformation module all links to each other with controller.
The output of described automatic transfer switch also is provided with the off-load unit, described off-load unit comprises off-load load and off-load control switch module, described off-load load links to each other with the output of automatic transfer switch by off-load control switch module, and the control end of described off-load control switch module links to each other with controller.
Described storage battery detection module also comprises the battery temperature detection module, described battery temperature detection module is installed on the storage battery, the output of described battery temperature detection module links to each other with controller, and described controller is according to the operating state of the temperature control charging circuit of battery temperature detection module output.
Described automatic transfer switch is the transistor power control switching of multichannel connection parallel with one another, the quantity of described transistor power control switching is corresponding one by one with the renewable energy power generation unit, each described transistor power control switching is controlled corresponding one road renewable energy power generation unit, and the control end of described transistor power control switching links to each other with controller respectively.
Described electricity accumulating unit also comprises the Voltage stabilizing module that is used to controller that power supply is provided, and the input of described Voltage stabilizing module links to each other with storage battery, and the output of described Voltage stabilizing module links to each other with controller.
Described control unit also comprises the demonstration output module for output detection signal, control signal and alarm signal, and described demonstration output module links to each other with the output of controller.
Described control unit comprises that also described wireless communication module links to each other with the output of controller for the wireless communication module of realizing Long-distance Control, monitoring and communication.
The utlity model has following advantage:
1, the utility model power supply unit comprises a plurality of renewable energy power generation unit for output same size direct voltage and is used for the automatic transfer switch of each renewable energy power generation unit connected state of control, control unit comprises controller, the generating voltage detection module, the quantity of the generating voltage detection module of control unit is corresponding one by one with the renewable energy power generation unit, and the generating voltage detection module links to each other with the voltage output end of corresponding renewable energy power generation unit, the controller of control unit is controlled the connected state of each renewable energy power generation unit, road by automatic transfer switch according to the information of voltage of each road generating voltage detection module output, thereby can realize the self-adapting intelligent control to multiple generating equipment, can take full advantage of wind energy, multiple green regenerative energy sources power supply such as solar energy realizes carbon dioxide zero discharge; Simultaneously, electricity accumulating unit of the present utility model comprises storage battery, charging circuit, the first DC-to-DC modular converter, discharge circuit, the second DC-to-DC modular converter, storage battery links to each other with the output of automatic transfer switch by charging circuit, the first DC-to-DC modular converter successively, and described storage battery links to each other with the output of automatic transfer switch by discharge circuit, the second DC-to-DC modular converter successively; The input of described output unit links to each other with the output of automatic transfer switch, and the output of output unit is outside load power supply by load bus, control unit comprises storage battery detection module and load bus voltage detection module, described storage battery detection module comprises the battery tension detection module for detection of the storage battery output voltage, for detection of the storage battery busbar voltage detection module of storage battery busbar voltage in the charging circuit with for detection of the charge in batteries current detection module of charging current in the charging circuit, the self-adapting intelligent control to electric power storage can be realized, power supply quality can be improved, prolong the useful life of storage battery.In sum, the utility model can be realized the adaptivity power supply of all size renewable energy power generation equipment, the self-adapting intelligent control of power supply in system's power supply process, electric power storage, electricity consumption, can take full advantage of multiple green regenerative energy sources such as wind energy, solar energy and realize the zero discharge power supply, have and connect advantages simple, safe and reliable, easy to operate, energy-conserving and environment-protective.
2, output unit of the present utility model further comprises DC-AC modular converter, family power interface and a plurality of load switch module, the family is with the load current detection module that is equipped with between power interface and each the load switch module for detection of this road loaded work piece electric current, controller passes through the connected state of each road load of load switch module controls according to the current information of each load current detection module output, thereby can realize the self-adapting intelligent control to electricity consumption, improve the reliability of power supply unit output.
Description of drawings
Fig. 1 is the theory structure schematic diagram of the utility model embodiment.
Fig. 2 is the frame structure schematic diagram of the utility model embodiment.
Fig. 3 is the frame structure schematic diagram of storage battery detection module among the utility model embodiment.
Fig. 4 is the frame structure schematic diagram of output unit among the utility model embodiment.
Fig. 5 is the structural representation of power supply unit and generating voltage detection module among the utility model embodiment.
Fig. 6 is the workflow schematic diagram of the utility model embodiment middle controller.
Marginal data: 1, power supply unit; 101, solar light-heat power-generation unit; 102, wind power generation unit; 103, solar energy power generating unit; 11, renewable energy power generation unit; 111, solar light-heat power-generation equipment; 112, the first AC-DC voltage transformation module; 113, the 3rd DC-to-DC modular converter; 114, wind power plant; 115, the second AC-DC voltage transformation module; 116, the 4th DC-to-DC modular converter; 117, solar energy power generating equipment; 118, the 5th DC-to-DC modular converter; 12, automatic transfer switch; 13, off-load unit; 131, off-load load; 132, off-load control switch module; 2, electricity accumulating unit; 21, storage battery; 211, Voltage stabilizing module; 22, charging circuit; 23, the first DC-to-DC modular converter; 24, discharge circuit; 25, the second DC-to-DC modular converter; 3, output unit; 31, DC-AC modular converter; 32, family power interface; 33, load switch module; 34, load current detection module; 4, control unit; 41, controller; 42, generating voltage detection module; 43, storage battery detection module; 431, battery tension detection module; 432, storage battery busbar voltage detection module; 433, charge in batteries current detection module; 434, battery temperature detection module; 44, load bus voltage detection module; 45, show output module; 46, wireless communication module; 5, load.
Embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, the low tension feed unit with multiple regenerative resource adaptive control of present embodiment comprises power supply unit 1, electricity accumulating unit 2, output unit 3 and control unit 4; Power supply unit 1 comprises a plurality of renewable energy power generation unit 11 for output same size direct voltage and is used for the automatic transfer switch 12 of each renewable energy power generation unit 11 connected states of control; Electricity accumulating unit 2 comprises storage battery 21, charging circuit 22, the first DC-to-DC modular converter 23, discharge circuit 24, the second DC-to-DC modular converter 25, storage battery 21 links to each other with the output of automatic transfer switch 12 by charging circuit 22, the first DC-to-DC modular converter 23 successively, and storage battery 21 links to each other with the output of automatic transfer switch 12 by discharge circuit 24, the second DC-to-DC modular converter 25 successively; The input of output unit 3 links to each other with the output of automatic transfer switch 12, and the output of output unit 3 is outside load 5 power supplies by load bus; Control unit 4 comprises controller 41, generating voltage detection module 42, storage battery detection module 43 and load bus voltage detection module 44, storage battery detection module 43 comprises the battery tension detection module 431 for detection of the storage battery output voltage, for detection of the storage battery busbar voltage detection module 432 of storage battery busbar voltage in the charging circuit 22 with for detection of the charge in batteries current detection module 433 of charging current in the charging circuit 22, the quantity of generating voltage detection module 42 is corresponding one by one with renewable energy power generation unit 11, and generating voltage detection module 42 links to each other with the voltage output end of corresponding renewable energy power generation unit 11, battery tension detection module 431 links to each other with the output of storage battery 21, storage battery busbar voltage detection module 432, charge in batteries current detection module 433 links to each other with charging circuit 22 respectively, generating voltage detection module 42, battery tension detection module 431, storage battery busbar voltage detection module 432, charge in batteries current detection module 433, load bus voltage detection module 44 links to each other with the input of controller 41 respectively, the output of controller 41 respectively with automatic transfer switch 12, charging circuit 22, discharge circuit 24 links to each other, and load bus voltage detection module 44 links to each other with the load bus of output unit 3 outputs; Controller 41 passes through the connected state that automatic transfer switch 12 is controlled each renewable energy power generation unit, road 11 according to the information of voltage of each road generating voltage detection module 42 output, and the current information that controller 41 is exported according to information of voltage and the charge in batteries current detection module 433 of battery tension detection module 431, storage battery busbar voltage detection module 432,44 outputs of load bus voltage detection module is controlled the operating state of charging circuit 22 and discharge circuit 24 respectively.
As shown in Figure 4, output unit 3 comprises DC-AC modular converter 31, family power interface 32 and a plurality of load switch module 33, the input of DC-AC modular converter 31 links to each other with automatic transfer switch 12, the output of DC-AC modular converter 31 links to each other with power interface 32 with the family, the family is inserted load bus by a load switch module 33 with one tunnel load 5 respectively with the load bus of the output of power interface 32, the family is with the load current detection module 34 that is equipped with between power interface 32 and each the load switch module 33 for detection of these road load 5 operating currents, load current detection module 34 links to each other with the input of controller 41, the control end of load switch module 33 links to each other with the output of controller 41 respectively, and controller 41 is controlled the connected state of each road load 5 by load switch module 33 according to the current information of each load current detection module 34 outputs.Present embodiment can be realized the intelligently connecting or disconnecting of load 5 is controlled by the structure of above-mentioned output unit 3 in the power supply condition of limited, thereby can effectively improve the high availability of present embodiment intelligent power supply, uses convenient.In the present embodiment, load current detection module 34 realizes that based on current sensor current sensor is serially connected with in the loop of load 5, thereby can detect the size of current of each road load of flowing through.Present embodiment is that example describes with the family with low tension feed unit, therefore is the load power supply by the family with power interface 32.Need to prove that for the application of other occasions, the family equally also can realize by a load switch module 33 one tunnel load 5 being inserted load bus respectively with power interface 32, thereby realizes the access to load 5, does not repeat them here.
As shown in Figure 5, a plurality of renewable energy power generations unit 11 of power supply unit 1 comprises solar light-heat power-generation unit 101, wind power generation unit 102 and solar energy power generating unit 103, solar light-heat power-generation unit 101 comprises that successively the output of the solar light-heat power-generation equipment 111 that connects, the first AC-DC voltage transformation module 112, the 3rd DC-to-DC modular converter 113, the three DC-to-DC modular converters 113 links to each other with automatic transfer switch 12; Wind power generation unit 102 comprises that successively the output of the wind power plant 114 that connects, the second AC-DC voltage transformation module 115, the 4th DC-to-DC modular converter 116, the four DC-to-DC modular converters 116 links to each other with automatic transfer switch 12; Solar energy power generating unit 103 comprises that the solar energy power generating equipment 117 that connects successively, the output of the 5th DC-to-DC modular converter 118, the five DC-to-DC modular converters 118 link to each other with automatic transfer switch 12.Solar light-heat power-generation unit 101 is when work, solar light-heat power-generation equipment 111 generating output ACs, the first AC-DC voltage transformation module 112 is converted to direct current with alternating current, exports automatic transfer switch 12 to after being converted to the low-voltage dc voltage of 12V specification by the 3rd DC-to-DC modular converter 113 then; Wind power generation unit 102 is when work, wind power plant 114 generating output ACs, the second AC-DC voltage transformation module 115 is converted to direct current with alternating current, exports automatic transfer switch 12 to after being converted to the low-voltage dc voltage of 12V specification by the 4th DC-to-DC modular converter 116 then; Solar energy power generating unit 103 is in when work, and solar energy power generating equipment 117 generating output DCs export automatic transfer switch 12 to after being converted to the low-voltage dc voltage of 12V specification by the 5th DC-to-DC modular converter 118 then.The present embodiment utilization comprises solar light-heat power-generation unit 101, renewable energy power generation unit 11 such as wind power generation unit 102 and solar energy power generating unit 103, can utilize the renewable energy power generation unit 11 that comprises other type regenerative electric power equipment in addition, voltage conversion circuit by the rear end can all be converted to the voltage of specifying specification, thereby the different output voltage specifications (12V for example that can adapt to various renewable generating equipments, 24V, specifications such as the direct current of 36V or interchange), under the control of controller 41, realize power supply, electric power storage, the Based Intelligent Control of electricity consumption, take full advantage of wind energy, multiple green regenerative energy sources such as solar energy realizes the zero discharge power supply, can realize the power supply of multiple renewable energy power generation apparatus self-adaptation zero discharge power supply and system's power supply process, electric power storage, the Based Intelligent Control of electricity consumption, can solve from entoilage district user and use the different size regenerative resource to unite adaptation power supply and the electric energy Based Intelligent Control problem in when power supply, have connect simple, safe and reliable, easy to operate, characteristics such as energy-conserving and environment-protective.Referring to Fig. 1, solar light-heat power-generation unit 101 and the wind power generation unit 102 of present embodiment are installed near the house, and solar energy power generating unit 103 is installed on the roof; In addition, the quantity of solar light-heat power-generation unit 101, wind power generation unit 102 and solar energy power generating unit 103 can arrange according to the actual conditions of locality.
In the present embodiment, the first DC-to-DC modular converter 23, the second DC-to-DC modular converter 25, the 3rd DC-to-DC modular converter 113, the 4th DC-to-DC modular converter 116, the 5th DC-to-DC modular converter 118 is PWM control type DC-to-DC voltage conversion circuit, DC-AC modular converter 31 is PWM control type DC-AC voltage switching circuit, the first AC-DC voltage transformation module 112, the second AC-DC voltage transformation module 115 is PWM control type AC-DC voltage conversion circuit, the first DC-to-DC modular converter 23, the second DC-to-DC modular converter 25, the 3rd DC-to-DC modular converter 113, the 4th DC-to-DC modular converter 116, the 5th DC-to-DC modular converter 118, DC-AC modular converter 31, the first AC-DC voltage transformation module 112, the second AC-DC voltage transformation module 115 all links to each other with controller 41.The first DC-to-DC modular converter 23, the second DC-to-DC modular converter 25 is respectively applied to the charging/discharging voltage of the voltage of 12V specification and storage battery 21 is changed, the 3rd DC-to-DC modular converter 113, the 4th DC-to-DC modular converter 116, the 5th DC-to-DC modular converter 118 all is converted to the direct voltage output of 12V specification for the direct voltage of the plurality of specifications that will import, the first AC-DC voltage transformation module 112, the second AC-DC voltage transformation module 115 is used for the alternating voltage of generating equipment output is converted to direct voltage, present embodiment utilizes PWM control type DC-to-DC voltage conversion circuit, PWM control type DC-AC voltage switching circuit, PWM control type AC-DC voltage conversion circuit is controlled accurate advantage, by the controller 41 controls first DC-to-DC modular converter 23, the second DC-to-DC modular converter 25, the 3rd DC-to-DC modular converter 113, the 4th DC-to-DC modular converter 116, the 5th DC-to-DC modular converter 118, DC-AC modular converter 31, the first AC-DC voltage transformation module 112, the voltage transitions that the second AC-DC voltage transformation module 115 is correlated with, can booster tension the accuracy of conversion, make that the output of power supply is more stable, because PWM control type DC-to-DC voltage conversion circuit, PWM control type DC-AC voltage switching circuit, PWM control type AC-DC voltage conversion circuit is the custom circuit of this area, and its detailed circuit structure does not repeat them here.
The automatic transfer switch 12 of present embodiment is the transistor power control switching of multichannel connection parallel with one another, the quantity of transistor power control switching is corresponding one by one with renewable energy power generation unit 11, each road corresponding renewable energy power generation unit 11 of transistor power control switching control, the control end of transistor power control switching links to each other with controller 41 respectively, the transistor power control switching is to realize that based on transistor and peripheral circuit thereof transistorized base stage links to each other with controller 41 as control end.
As Fig. 1 and shown in Figure 5; the output of automatic transfer switch 12 also is provided with off-load unit 13 in the present embodiment; off-load unit 13 comprises off-load load 131 and off-load control switch module 132; off-load load 131 links to each other with the output of automatic transfer switch 12 by off-load control switch module 132; the control end of off-load control switch module 132 links to each other with controller 41; controller 41 can be opened off-load control switch module 132 and be communicated with off-load loads 131 when the output of automatic transfer switch 12 is big; thereby can be to storage battery 21; the protection effect is played in load 5, can prevent excessive output damage storage battery 21 and load 5.
In the present embodiment, electricity accumulating unit 2 also comprises the Voltage stabilizing module 211 that is used to controller 41 that power supply is provided, and the input of Voltage stabilizing module 211 links to each other with storage battery 21, and the output of Voltage stabilizing module 211 links to each other with controller 41.
In the present embodiment, control unit 4 also comprises the demonstration output module 45 for output detection signal, control signal and alarm signal, show that output module 45 links to each other with the output of controller 41, can conveniently check detection signal, control signal and the alarm signal of controller 41 outputs by showing output module 45, thereby can in time understand the work state information of present embodiment, use convenient.In the present embodiment, control unit 4 also comprises for the wireless communication module 46 of realizing Long-distance Control, monitoring and communication, wireless communication module 46 links to each other with the output of controller 41, wireless communication module 46 can conveniently be realized Long-distance Control, monitoring and the communication to present embodiment, Scalable Performance is good, need not communication cable during use, convenient to use.The storage battery detection module 43 of present embodiment also comprises battery temperature detection module 434, battery temperature detection module 434 is installed on the storage battery 21, the output of battery temperature detection module 434 links to each other with controller 41, controller 41 is according to the operating state of the temperature control charging circuit 22 of battery temperature detection module 434 outputs, controller 41 can in time stop charging to storage battery 21 by battery temperature detection module 434 when the temperature of storage battery 21 is too high, prevent from overcharging the damage that causes storage battery 21, can effectively prolong the useful life of storage battery 21, battery temperature detection module 434 is realized based on temperature sensor.Load 5 is specifically as follows family expenses semiconductor electrical equipment equipment, portable accumulation of energy charging device, open-air LED advertisement electrical screen, lighting, field work power consumption equipment etc.
In the present embodiment, generating voltage detection module 42, battery tension detection module 431, storage battery busbar voltage detection module 432, load bus voltage detection module 44 all realize based on voltage sensor, charge in batteries current detection module 433 is realized based on current sensor, battery temperature detection module 434 realizes that based on thermistor controller 41 is based on chip microcontroller.
The method of controller 41 adjusting electric energy power supplies as shown in Figure 6,, electric power storage, electricity consumption specifically may further comprise the steps:
1) controller 41 detects the voltage U of corresponding renewable energy power generation unit 11 outputs respectively by each road generating voltage detection module 42
i
2) at each road U
iCarry out judgment processing, if a certain road generating voltage detection module 42 output voltage U
iGreater than power supply threshold voltage U
Ro(rated direct voltage of renewable energy power generation unit 11 outputs is 12V in the present embodiment, power supply threshold voltage U
RoBe 10V), then redirect is carried out next step; Otherwise controller 41 sends power supply automatic switchover control signal to automatic transfer switch 12 and cuts off current renewable energy power generation unit 11 simultaneously.
3) controller 41 sends pwm control signal to current renewable energy power generation unit 11, and control renewable energy power generation unit 11 execution voltage transitions are the direct voltage of 12V specification with the voltage transitions of generating equipment (solar light-heat power-generation equipment 111 or wind power plant 114 or solar energy power generating equipment 117) output.
4) controller 41 sends power supply automatic switchover control signal to automatic transfer switch 12, is communicated with output voltage U
iGreater than U
RoGenerating voltage detection module 42 corresponding renewable energy power generation unit 11.
5) controller 41 detects the load bus voltage U by load bus voltage detection module 44, and controller 41 judges whether the load bus voltage U surpasses predetermined lower threshold value load bus voltage U
R1If U is greater than lower threshold load bus voltage U
R1, then redirect execution in step 6), otherwise redirect execution in step 14).
6) controller 41 is communicated with each road load 5 by load switch module 33.Controller 41 detects storage battery busbar voltage U by storage battery busbar voltage detection module 432 then
o, detect battery tension U by battery tension detection module 431
c
7) controller 41 is judged storage battery busbar voltage U
oBe greater than or equal to the initial busbar voltage U of charge in batteries
sWhile battery tension U
cBe less than or equal to accumulator super-charge voltage U
CsWhether set up, connect battery charging circuit 22 if set up then need to represent, redirect is carried out next step; Otherwise controller 41 carries out off-load by the direct voltage that off-load control switch module 132 is communicated with 11 outputs of 131 pairs of renewable energy power generation unit of off-load load.
8) controller 41 connects charging circuit 22.
9) controller 41 is by the temperature T c of battery temperature detection module 434 detection storage batterys, if the temperature T c of storage battery is less than the charge threshold temperature T
Max(T
c＜T
Max), then controller 41 carries out off-load by the direct voltage that off-load control switch module 132 is communicated with 11 outputs of 131 pairs of renewable energy power generation unit of off-load load, otherwise redirect is carried out next step.
10) controller 41 sends the charge in batteries pwm control signal to the first DC-to-DC modular converter 23, controlling the first DC-to-DC modular converter 23, to carry out voltage transitions be that storage battery 21 charges, and next step charging modes of judging concrete employing is carried out in redirect then.
11) 41 couples of battery tension U of controller
cJudge, if battery tension U
cLess than storage battery constant current charge threshold voltage U
r, then 22 pairs of storage batterys of controller 41 control charging circuits 21 carry out constant current charge, otherwise detect the charging current Ic of storage battery 21 by charging circuit 22.
12) the charging current I of 41 pairs of storage batterys 21 of controller
cJudge, if the charging current I of storage battery 21
cLess than storage battery constant voltage charge threshold current I
r, then 22 pairs of storage batterys of controller 41 control charging circuits 21 carry out constant voltage charge, otherwise detect the voltage U of storage battery
c
13) 41 couples of battery tension Uc of controller judge, if battery tension U
cBe U less than default accumulator super-charge voltage
Cs, then 22 pairs of storage batterys of controller 41 control charging circuits 21 carry out floating charge, otherwise controller 41 carries out off-load (omitting among the figure) by the direct voltage that off-load control switch module 132 is communicated with 11 outputs of 131 pairs of renewable energy power generation unit of off-load load.
14) controller 41 judges that whether the load bus voltage U is less than upper limit threshold load bus voltage U
R2If U is less than upper limit threshold load bus voltage U
R2Then storage battery 21 neither charges and does not also discharge, and controller 41 directly is communicated with each road load 5 by load switch module 33, otherwise redirect is carried out next step.
15) controller 41 detects storage battery busbar voltage U by storage battery busbar voltage detection module 432
o, detect battery tension U by battery tension detection module 431
c
16) controller 41 is judged U
oBe less than or equal to the initial busbar voltage U of battery discharging
xWhile battery tension U
cBe greater than or equal to battery overdischarge and press U
CxWhether set up, if be false then controller 41 cuts out discharge circuit 24, storage battery 21 stops discharge, and to showing output module 45 or wireless communication module 46 output loading excess load alarm signals and accumulator electric-quantity alarm signal; Otherwise redirect is carried out next step.
17) controller 41 sends the battery discharging pwm control signal to the second DC-to-DC modular converter 25, controls the second DC-to-DC modular converter 25 and carries out voltage transitions, is communicated with discharge circuit 24 then;
18) storage battery 21 is load 5 power supplies by discharge circuit 24.
19) controller 41 timings are according to the current information of each load current detection module 34 outputs, connected state by 33 each the road load 5 of control of load switch module: at first select one tunnel load 5, detect the electric current I of this road load then by load current detection module 34
iIf, the electric current I of this road load
iLess than the current value I of presetting at this road load
I0, then controller 41 is to showing output module 45 or wireless communication module 46 output loading excess load alarm signals, and closes load switch module 33 and cut off these road loads 5; Otherwise open load switch module 33 this road load 5 is communicated with, wait for a Preset Time then after, select next road load 5 to repeat above-mentioned steps.
Referring to abovementioned steps 1)～step 19), parameter default in the controller 41 comprises: power supply threshold voltage U
Ro, lower threshold load bus voltage U
R1, upper limit threshold load bus voltage U
R2, the charge threshold temperature T
Max, storage battery constant current charge threshold voltage U
r, storage battery constant voltage charge threshold current I
r, the initial busbar voltage U of charge in batteries
s, accumulator super-charge voltage U
Cs, battery overdischarge presses U
Cx, the initial busbar voltage U of battery discharging
x, the default current value I of each road load 5
I0Deng, the numerical value of above-mentioned parameter specifically can arrange as required, does not repeat them here.
The above only is preferred implementation of the present utility model, and protection range of the present utility model also not only is confined to above-described embodiment, and all technical schemes that belongs under the utility model thinking all belong to protection range of the present utility model.Should be pointed out that for those skilled in the art in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (10)
1. the low tension feed unit with multiple regenerative resource adaptive control is characterized in that: comprise power supply unit (1), electricity accumulating unit (2), output unit (3) and control unit (4); Described power supply unit (1) comprises a plurality of renewable energy power generation unit (11) for output same size direct voltage and is used for the automatic transfer switch (12) of each renewable energy power generation unit (11) connected state of control; Described electricity accumulating unit (2) comprises storage battery (21), charging circuit (22), the first DC-to-DC modular converter (23), discharge circuit (24), the second DC-to-DC modular converter (25), described storage battery (21) links to each other with the output of automatic transfer switch (12) by charging circuit (22), the first DC-to-DC modular converter (23) successively, and described storage battery (21) links to each other with the output of automatic transfer switch (12) by discharge circuit (24), the second DC-to-DC modular converter (25) successively; The input of described output unit (3) links to each other with the output of automatic transfer switch (12), and the output of output unit (3) is outside load (5) power supply by load bus; Described control unit (4) comprises controller (41), generating voltage detection module (42), storage battery detection module (43) and load bus voltage detection module (44), described storage battery detection module (43) comprises the battery tension detection module (431) for detection of the storage battery output voltage, for detection of the storage battery busbar voltage detection module (432) of storage battery busbar voltage in the charging circuit (22) with for detection of the charge in batteries current detection module (433) of charging current in the charging circuit (22), the quantity of described generating voltage detection module (42) is corresponding one by one with renewable energy power generation unit (11), and described generating voltage detection module (42) links to each other with the voltage output end of corresponding renewable energy power generation unit (11), described battery tension detection module (431) links to each other with the output of storage battery (21), described storage battery busbar voltage detection module (432), charge in batteries current detection module (433) links to each other with charging circuit (22) respectively, described generating voltage detection module (42), battery tension detection module (431), storage battery busbar voltage detection module (432), charge in batteries current detection module (433), load bus voltage detection module (44) links to each other with the input of controller (41) respectively, the output of described controller (41) respectively with automatic transfer switch (12), charging circuit (22), discharge circuit (24) links to each other, and described load bus voltage detection module (44) links to each other with the load bus of described output unit (3) output; Described controller (41) is controlled the connected state of each renewable energy power generation unit, road (11) according to the information of voltage of each road generating voltage detection module (42) output by automatic transfer switch (12), and described controller (41) is controlled the operating state of charging circuit (22) and discharge circuit (24) respectively according to the information of voltage of battery tension detection module (431), storage battery busbar voltage detection module (432), load bus voltage detection module (44) output and current information that charge in batteries current detection module (433) is exported.
2. the low tension feed unit with multiple regenerative resource adaptive control according to claim 1, it is characterized in that: described output unit (3) comprises DC-AC modular converter (31), family power interface (32) and a plurality of load switch module (33), the input of described DC-AC modular converter (31) links to each other with automatic transfer switch (12), the output of described DC-AC modular converter (31) links to each other with power interface (32) with the family, described family is inserted load bus by a load switch module (33) with one tunnel load (5) respectively with the load bus of the output of power interface (32), described family is with the load current detection module (34) that is equipped with between power interface (32) and each the load switch module (33) for detection of this road load (5) operating current, described load current detection module (34) links to each other with the input of controller (41), the control end of described load switch module (33) links to each other with the output of controller (41) respectively, and described controller (41) is controlled the connected state of each road load (5) by load switch module (33) according to the current information of each load current detection module (34) output.
3. the low tension feed unit with multiple regenerative resource adaptive control according to claim 2, it is characterized in that: a plurality of renewable energy power generations unit (11) of described power supply unit (1) comprises solar light-heat power-generation unit (101), wind power generation unit (102) and solar energy power generating unit (103), described solar light-heat power-generation unit (101) comprises the solar light-heat power-generation equipment (111) that connects successively, the first AC-DC voltage transformation module (112), the 3rd DC-to-DC modular converter (113), the output of described the 3rd DC-to-DC modular converter (113) links to each other with automatic transfer switch (12); Described wind power generation unit (102) comprises wind power plant (114), the second AC-DC voltage transformation module (115), the 4th DC-to-DC modular converter (116) that connects successively, and the output of described the 4th DC-to-DC modular converter (116) links to each other with automatic transfer switch (12); Described solar energy power generating unit (103) comprises solar energy power generating equipment (117), the 5th DC-to-DC modular converter (118) that connects successively, and the output of described the 5th DC-to-DC modular converter (118) links to each other with automatic transfer switch (12).
4. the low tension feed unit with multiple regenerative resource adaptive control according to claim 3, it is characterized in that: the described first DC-to-DC modular converter (23), the second DC-to-DC modular converter (25), the 3rd DC-to-DC modular converter (113), the 4th DC-to-DC modular converter (116), the 5th DC-to-DC modular converter (118) is PWM control type DC-to-DC voltage conversion circuit, described DC-AC modular converter (31) is PWM control type DC-AC voltage switching circuit, the described first AC-DC voltage transformation module (112), the second AC-DC voltage transformation module (115) is PWM control type AC-DC voltage conversion circuit, the described first DC-to-DC modular converter (23), the second DC-to-DC modular converter (25), the 3rd DC-to-DC modular converter (113), the 4th DC-to-DC modular converter (116), the 5th DC-to-DC modular converter (118), DC-AC modular converter (31), the first AC-DC voltage transformation module (112), the second AC-DC voltage transformation module (115) all links to each other with controller (41).
5. the low tension feed unit with multiple regenerative resource adaptive control according to claim 4, it is characterized in that: the output of described automatic transfer switch (12) also is provided with off-load unit (13), described off-load unit (13) comprises off-load load (131) and off-load control switch module (132), described off-load load (131) links to each other by the output of off-load control switch module (132) with automatic transfer switch (12), and the control end of described off-load control switch module (132) links to each other with controller (41).
6. the low tension feed unit with multiple regenerative resource adaptive control according to claim 5, it is characterized in that: described storage battery detection module (43) also comprises battery temperature detection module (434), described battery temperature detection module (434) is installed on the storage battery (21), the output of described battery temperature detection module (434) links to each other with controller (41), and described controller (41) is according to the operating state of the temperature control charging circuit (22) of battery temperature detection module (434) output.
7. according to any described low tension feed unit with multiple regenerative resource adaptive control in the claim 1～6, it is characterized in that: described automatic transfer switch (12) is the transistor power control switching of multichannel connection parallel with one another, the quantity of described transistor power control switching is corresponding one by one with renewable energy power generation unit (11), each described transistor power control switching is controlled corresponding one road renewable energy power generation unit (11), and the control end of described transistor power control switching links to each other with controller (41) respectively.
8. the low tension feed unit with multiple regenerative resource adaptive control according to claim 7, it is characterized in that: described electricity accumulating unit (2) also comprises the Voltage stabilizing module (211) that is used to controller (41) that power supply is provided, the input of described Voltage stabilizing module (211) links to each other with storage battery (21), and the output of described Voltage stabilizing module (211) links to each other with controller (41).
9. the low tension feed unit with multiple regenerative resource adaptive control according to claim 8, it is characterized in that: described control unit (4) also comprises the demonstration output module (45) for output detection signal, control signal and alarm signal, and described demonstration output module (45) links to each other with the output of controller (41).
10. the low tension feed unit with multiple regenerative resource adaptive control according to claim 9, it is characterized in that: described control unit (4) comprises that also described wireless communication module (46) links to each other with the output of controller (41) for the wireless communication module (46) of realizing Long-distance Control, monitoring and communication.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201320036096 CN203039420U (en) | 2013-01-24 | 2013-01-24 | Adaptive control low pressure power supply apparatus possessing a plurality of renewable energy sources |
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| CN 201320036096 CN203039420U (en) | 2013-01-24 | 2013-01-24 | Adaptive control low pressure power supply apparatus possessing a plurality of renewable energy sources |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811479A (en) * | 2014-12-30 | 2016-07-27 | 惠州志顺电子实业有限公司 | Device and method for determining device charging saturation |
| CN106301208A (en) * | 2015-05-26 | 2017-01-04 | 比亚迪股份有限公司 | Solar energy storage system and the control method of solar energy storage system |
| CN113922505A (en) * | 2021-10-15 | 2022-01-11 | 广东电网有限责任公司江门供电局 | Edge computing intelligent gateway suitable for building comprehensive energy management |
-
2013
- 2013-01-24 CN CN 201320036096 patent/CN203039420U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105811479A (en) * | 2014-12-30 | 2016-07-27 | 惠州志顺电子实业有限公司 | Device and method for determining device charging saturation |
| CN106301208A (en) * | 2015-05-26 | 2017-01-04 | 比亚迪股份有限公司 | Solar energy storage system and the control method of solar energy storage system |
| CN106301208B (en) * | 2015-05-26 | 2020-02-04 | 比亚迪股份有限公司 | Solar energy storage system and control method thereof |
| CN113922505A (en) * | 2021-10-15 | 2022-01-11 | 广东电网有限责任公司江门供电局 | Edge computing intelligent gateway suitable for building comprehensive energy management |
| CN113922505B (en) * | 2021-10-15 | 2023-08-04 | 广东电网有限责任公司江门供电局 | Edge computing intelligent gateway suitable for building comprehensive energy management |
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