CN203537003U - Solar combination controller - Google Patents
Solar combination controller Download PDFInfo
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- CN203537003U CN203537003U CN201320627457.6U CN201320627457U CN203537003U CN 203537003 U CN203537003 U CN 203537003U CN 201320627457 U CN201320627457 U CN 201320627457U CN 203537003 U CN203537003 U CN 203537003U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to a controller, and discloses a solar combination controller. In the utility model, the solar combination controller comprises N input ports, a first output port, N switching elements and a digital processor, wherein N is a natural number; a first port of each switching element is connected with an input port of the solar combination controller; a second port of each switching element is connected with the first output port of the solar combination controller; the control end of each switching element is connected with a corresponding control bit of the digital processor, and the on and off of the switching elements are controlled by the digital processor; N paths of solar charging current are inputted through the N input ports; and combined solar charging current is outputted through the first output port. According to the utility model, the charging of solar storage batteries can be quantitatively managed, the system reliability can be improved and the cost can be lowered.
Description
Technical field
The utility model relates to controller, particularly the solar energy controller that confluxes.
Background technology
At present in solar energy transmitting procedure, photovoltaic array needs first all to enter header box and arranges separately, is merged into and concentrates Yi road, then pass through solar charging controller, then just sends into storage battery.But can not be according to the adjusting of charging of the state-of-charge of storage battery.
And, the gross power that current solar panels enter subordinate's charge controller after header box is concentrated is very large, now adopt the charge controller of general low speed switch type (without afterflow inductance), can cause the huge surge current of battery pack and voltage fluctuation, the normal work (as LED illumination flicker) and the life of storage battery that affect load shorten; Or adopt the charge controller of other pulse-width modulations (Pulse Width Modulation is called for short PWM) (having afterflow inductance) at a high speed, cost high (needing total power to carry out PWM control) efficiency low (speed-sensitive switch loss).
In addition, bus-bar adopts the measure of series diode counterflow-preventing at present, and as shown in Figure 1, loss is large, needs larger volume radiator, and wherein, PV is solar panels; And at present the built-in DC circuit breaker price of photovoltaic header box is high, useful life is restricted.
Utility model content
The purpose of this utility model is to provide a kind of solar energy controller that confluxes, and making can the charging of quantitative management solar storage battery, improves system reliability, cost-saving.
For solving the problems of the technologies described above, the utility model provides a kind of solar energy controller that confluxes, and comprises: N input port, the first output port, a N switch element and digital processing unit;
Described switch element comprises the first port, the second port and control end; A conflux input port of controller of the first port of described each switch element and described solar energy is connected; The second port of described each switch element is all connected with conflux the first output port of controller of described solar energy, the control end of described each switch element is connected with described digital processing unit, conducting and the disconnection of switch element described in described digital processor controls;
Described N input port input N road solar recharging electric current; Solar recharging electric current after described the first output port output is confluxed.
The utility model execution mode in terms of existing technologies, the solar energy controller that confluxes comprises N input port, whole energy of the permutation solar energy of photovoltaic array collection are divided into N part, and every part of energy switch element by conducting enters the solar energy controller that confluxes; The digital processing unit that solar energy confluxes in controller detects the voltage at the first output port place, learn the state-of-charge of solar storage battery, and according to the switch element of the state-of-charge connection specific quantity of this solar storage battery, it is quantified controlling, make the first output port export suitable electric current to solar storage battery, avoid solar storage battery to overcharge damage, also can avoid causing load normally to work because its electric weight is not enough, reach the effect of Charge Management.Like this, the solar energy controller that confluxes can one-level completes solar recharging electric current and confluxes and Charge Management, has obviously reduced the node of system switching, has improved the reliability of system, has saved cost, simultaneously can the charging of quantitative management solar storage battery.
In addition, switch element is electronic switch.Electronic switch is by consisting of metal-oxide layer-semiconductor-field-effect transistor or bipolar transistor, and its conducting resistance is in several milliohm levels, and therefore the loss of every road electronic switch, only 1 watt of left and right, greatly reduces the heat that system produces, and has saved energy; Meanwhile, can complete the function of counterflow-preventing, anti-reverse harmless protection completely.Because electronic switch is existing ripe device, guaranteed the feasibility of the utility model execution mode.
In addition, the utility model also comprises current source type PDM keyer.Current source type PWM can further be quantified as the solar energy on a road wherein 1/256 (8 bit resolution) of this road solar energy, or 1/1024(10 bit resolution), thus system control precision can reach 1/ (N*256) or 1/ (N*1024).When energy flows into load, just can be undertaken accurately by demand (battery characteristics) like this, the moving control of microwave.Each energy step size only has 1/ (N*256) or 1/ (N*1024) of gross energy, and its advantage is, can organically combine the tractability of High-speed Control with high efficiency and the low cost of low speed control.Because current source type PDM keyer is existing ripe device, guaranteed the feasibility of the utility model execution mode.
Accompanying drawing explanation
Fig. 1 is according to the structural representation of bus-bar series diode counterflow-preventing of the prior art measure;
Fig. 2 is according to the conflux structural representation of controller of the solar energy in the utility model the first execution mode;
Fig. 3 is according to the structural representation of the electronic switch in the utility model the first execution mode;
Fig. 4 is according to the conflux structural representation of controller of the solar energy in the utility model the second execution mode;
Fig. 5 is according to the conflux structural representation of controller of the solar energy in the utility model the 3rd execution mode.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, each execution mode of the present utility model is explained in detail.Yet, persons of ordinary skill in the art may appreciate that in each execution mode of the utility model, in order to make reader understand the application better, many ins and outs have been proposed.But, even without these ins and outs and the many variations based on following execution mode and modification, also can realize each claim of the application technical scheme required for protection.
The first execution mode of the present utility model relates to a kind of solar energy controller that confluxes, and comprises N input port, the first output port, the second output port, a N switch element, and concrete structure as shown in Figure 2.
Switch element comprises the first port, the second port and control end; A conflux input port of controller of the first port and the solar energy of each switch element is connected; Conflux each input port of controller of solar energy is connected with solar panels; The second port of each switch element is all connected with conflux the first output port of controller of solar energy, and the control end of each switch element is connected with digital processing unit, the conducting of digital processor controls switch element and disconnection; The second output port is connected with digital processing unit.
Wherein, switch element is electronic switch.Electronic switch is by MOSFET(Metal-Oxide-Semiconductor Field-Effect Transistor, metal-oxide layer-semiconductor-field-effect transistor) or IGBT(Insulated Gate Bipolar Transistor, insulating gate type bipolar transistor) form, adopt two MOSFET or IGBT that source electrode links together, specifically as shown in Figure 3, wherein, K1, K2 are respectively the first port, second port of electronic switch.First, with respect to diode, because electronic switch conducting resistance is in several milliohm levels, therefore the loss of every road electronic switch only greatly reduces the heat that system produces 1 watt of left and right, has saved energy; Meanwhile, utilize diode in body, can complete the function of counterflow-preventing completely.Secondly, utilize electronic switch to replace the large current DC circuit breaker in current header box, more easily realize remote switch, improved the reliability of system, and reduced cost.Finally, adopt electronic switch can reject in time the solar energy group string of damage, system still can normally be worked.If tradition header box adopts solar energy group string directly in parallel, when a road wherein produces hot spot because capture-effect, internal short-circuit or other reasons can make normal group string energy flow backwards, aggravate the infringement of undesired group of string until system crash.If tradition header box adopts series diode to prevent this harm (as Fig. 1), because the power consumption of diode is larger, the heat that each group string produces is between ten several watts, caloric value is huge and lower efficiency, under the closed environment that needs degree of protection IP65 to require, be difficult to accomplish the unification of cost and reliability.
It is worth mentioning that, the electronic switch in present embodiment, is a kind of concrete implementation, in actual applications, also can adopt other equivalent switch elements, at this, does not repeat one by one.
The solar energy controller that confluxes comprises N input port, N input port input N road solar recharging electric current, and whole energy of the permutation solar energy of photovoltaic array collection are divided into N part, and the switch element by conducting enters the solar energy controller that confluxes.In the present embodiment, the 1/N that the step size of energy is gross energy, N is larger, and the step size of energy is less, and control precision is higher, and the efficiency of control is lower.
It should be noted that, N is set to suitable value according to actual needs.
The solar energy built-in digital processing unit in controller that confluxes comprises microprocessor, sample circuit and accessory power supply.Before battery-operated, can detect storage battery and whether correctly access, detect whether correctly access of solar panels.In said process, also can detect the generating situation of solar panels: the counterflow-preventing state at the generating state in daytime or night.In the course of the work, can detect the voltage of the first output port place (the A point in Fig. 2), learn the state-of-charge of solar storage battery, and according to the switch element of the state-of-charge connection specific quantity of this solar storage battery, it is energy quantitative management, the increase of storage battery carrying capacity make the first output port export suitable electric current to solar storage battery: along with can, according to Charge Management characteristic, by reducing the quantity of the electronic switch of conducting, reduce the solar panels quantity of access; After carrying capacity declines in the course of work, also can by increasing the quantity of the electronic switch of conducting, increase quantitatively the way of the solar panels of access according to battery characteristics, reach the peak use rate of solar energy.Like this, both can avoid solar storage battery to damage because overcharging, and also can avoid causing load normally to work because its electric weight is not enough, reach the effect of Charge Management.And the solar energy controller that confluxes can one-level completes solar recharging electric current and confluxes and Charge Management, has obviously reduced the node of system switching, has improved the reliability of system, has saved cost, simultaneously can the charging of quantitative management solar storage battery.
Adopt digital processing unit to control, the parameters such as photovoltaic array, battery condition can conveniently transfer to host computer by communications protocol, the convenient Based Intelligent Control of confluxing that realizes.
Solar recharging electric current after the first output port output is confluxed, charges a battery.The second output port is connected with digital processing unit, and digital processing unit is connected with remote terminal, can utilize the Long-distance Control characteristic of electronic switch.Like this, be conducive to carry out energy output United Dispatching in grid-connected system.
The second execution mode of the present utility model relates to a kind of solar energy controller that confluxes.The second execution mode and the first execution mode are roughly the same, and main distinction part is: in the first embodiment, conflux each input port of controller of solar energy is connected with solar panels, and each switch element is controlled solar panels; And in the utility model the second execution mode, the conflux input port of controller of one of them solar energy is connected with two solar panels, one of them switch element is controlled two solar panels; Concrete structure as shown in Figure 4.Wherein, switch element is electronic switch.
It should be noted that, N is set to suitable value according to actual needs, and the number of electronic switch also can be less than N.
The 3rd execution mode of the present utility model relates to a kind of solar energy controller that confluxes.The 3rd execution mode and the first execution mode are roughly the same, and main distinction part is: in the 3rd execution mode, also comprise current source type PDM keyer, concrete structure as shown in Figure 5.
A conflux input port of controller of the input port of current source type PDM keyer and solar energy is connected; The output port of current source type PDM keyer is conflux the first output port of controller of solar energy; The output port of current source type PDM keyer is connected with digital processing unit, conducting and the disconnection of digital processor controls current source type PDM keyer.
In the present embodiment, the solar energy controller that confluxes comprises N input port, comprise (N-1) individual electronic switch, with a current source type PDM keyer, be that solar recharging electric current divides N road to enter the solar energy controller that confluxes, this that is to say, whole energy of the permutation solar energy of photovoltaic array collection are divided into N part.In the present embodiment, the 1/N that the step size of the energy of the branch road of connecting electronic switch is gross energy; Connect 1/256 (8 bit resolution) or the 1/1024(10 bit resolution that energy that the branch road of current source type PDM keyer can Jiang Gai road is further quantized into 1/N), in Ji Gai road, each energy step size only has the 1/(N*256 of gross energy) or 1/(N*1024), when energy flows into load, can be undertaken accurately by demand (battery characteristics), the moving control of microwave.It should be noted that, with respect to electronic switch, current source type PDM keyer is high speed device, and Energy Quantization is controlled comparatively meticulous, expensive, and loss is large; But it is high that the branch road by connecting electronic switch carries out Energy Quantization control efficiency, and cost is low.The advantage of present embodiment is, can charge by quantitative management solar storage battery, meanwhile, can organically combine the tractability of High-speed Control with high efficiency and the low cost of low speed control.
It should be noted that, N is set to suitable value according to actual needs, and the number of electronic switch also can be less than (N-1).
In terms of existing technologies, the solar energy controller that confluxes comprises N input port, and whole energy of the permutation solar energy of photovoltaic array collection are divided into N part, and every part of energy switch element by conducting enters the solar energy controller that confluxes; The digital processing unit that solar energy confluxes in controller detects the voltage at the first output port place, learn the state-of-charge of solar storage battery, and according to the switch element of the state-of-charge connection specific quantity of this solar storage battery, it is quantified controlling, make the first output port export suitable electric current to solar storage battery, avoid solar storage battery to overcharge damage, also can avoid causing load normally to work because its electric weight is not enough, reach the effect of Charge Management.Like this, the solar energy controller that confluxes can one-level completes solar recharging electric current and confluxes and Charge Management, has obviously reduced the node of system switching, has improved the reliability of system, has saved cost, simultaneously can the charging of quantitative management solar storage battery.
Persons of ordinary skill in the art may appreciate that the respective embodiments described above are to realize specific embodiment of the utility model, and in actual applications, can to it, do various changes in the form and details, and do not depart from spirit and scope of the present utility model.
Claims (6)
1. the solar energy controller that confluxes, is characterized in that, comprises: N input port, the first output port, a N switch element and digital processing unit;
Described switch element comprises the first port, the second port and control end; A conflux input port of controller of the first port of described each switch element and described solar energy is connected; The second port of described each switch element is all connected with conflux the first output port of controller of described solar energy; The control end of described each switch element is connected with described digital processing unit, conducting and the disconnection of switch element described in described digital processor controls;
Described N input port input N road solar recharging electric current; Solar recharging electric current after described the first output port output is confluxed.
2. the solar energy according to claim 1 controller that confluxes, is characterized in that, described switch element is electronic switch.
3. the solar energy according to claim 2 controller that confluxes, is characterized in that, described electronic switch consists of metal-oxide layer-semiconductor-field-effect transistor or bipolar transistor.
4. the solar energy according to claim 1 controller that confluxes, is characterized in that, also comprises current source type PDM keyer;
A conflux input port of controller of the input port of described current source type PDM keyer and described solar energy is connected; The output port of described current source type PDM keyer is conflux the first output port of controller of described solar energy; The output port of described current source type PDM keyer is connected with described digital processing unit, conducting and the disconnection of current source type PDM keyer described in described digital processor controls.
5. the solar energy according to claim 1 controller that confluxes, is characterized in that, also comprises the second output port;
Described the second output port is connected with described digital processing unit.
6. the solar energy according to claim 1 controller that confluxes, is characterized in that, described digital processing unit is also for carrying out communication with remote terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320627457.6U CN203537003U (en) | 2013-10-11 | 2013-10-11 | Solar combination controller |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320627457.6U CN203537003U (en) | 2013-10-11 | 2013-10-11 | Solar combination controller |
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| CN203537003U true CN203537003U (en) | 2014-04-09 |
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| CN201320627457.6U Expired - Fee Related CN203537003U (en) | 2013-10-11 | 2013-10-11 | Solar combination controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532489A (en) * | 2013-07-18 | 2014-01-22 | 上海锦德电器电子有限公司 | Solar combination controller |
| CN105024639A (en) * | 2014-04-22 | 2015-11-04 | 江苏通灵电器股份有限公司 | Photovoltaic assembly main loop protecting method |
-
2013
- 2013-10-11 CN CN201320627457.6U patent/CN203537003U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103532489A (en) * | 2013-07-18 | 2014-01-22 | 上海锦德电器电子有限公司 | Solar combination controller |
| CN105024639A (en) * | 2014-04-22 | 2015-11-04 | 江苏通灵电器股份有限公司 | Photovoltaic assembly main loop protecting method |
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| 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: 20140409 Termination date: 20161011 |