CN204168143U - high-frequency isolation type photovoltaic controller - Google Patents
high-frequency isolation type photovoltaic controller Download PDFInfo
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- CN204168143U CN204168143U CN201420552036.6U CN201420552036U CN204168143U CN 204168143 U CN204168143 U CN 204168143U CN 201420552036 U CN201420552036 U CN 201420552036U CN 204168143 U CN204168143 U CN 204168143U
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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
- Y02E10/56—Power conversion systems, e.g. maximum power point trackers
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Abstract
The utility model discloses a kind of high-frequency isolation type photovoltaic controller, relate to control device.Invent for solving the lower problem of efficiency.Comprise: boosting unit, High-frequency Interference filtering EMI unit, power factor correction PFC unit, DC/DC converter unit, rectification filtering unit, central processing unit CPU and input voltage measurement unit; One end of boosting unit is connected with the output of photovoltaic battery panel, and this end connects one end of input voltage measurement unit simultaneously, and the other end of boosting unit is connected with one end of High-frequency Interference filtering EMI unit, and boosting unit is connected with central processing unit CPU simultaneously; The other end of High-frequency Interference filtering EMI unit is connected with one end of power factor correction PFC unit; The other end of power factor correction PFC unit is connected with MOS type field effect transistor; High-frequency isolation transformer is connected with one end of rectification filtering unit, and the other end of rectification filtering unit is connected with the input of storage battery; The other end of input voltage measurement unit is connected with central processing unit CPU.
Description
Technical field
The utility model relates to control device, particularly relates to a kind of high-frequency isolation type photovoltaic controller.
Background technology
At present, solar power generation process comprises: using photovoltaic controller to control photovoltaic battery panel is charge in batteries, is stored after converting solar energy into electrical energy by storage battery, recycles battery discharging to load, for load provides electric energy.In prior art, photovoltaic controller comprises multiple switching tube, and the delivery of electrical energy that photovoltaic battery panel is transformed by multiple switching tube by photovoltaic controller is to storage battery.
But because photovoltaic battery panel is input to, the voltage of photovoltaic controller is lower, electric current is higher, makes the line loss of photovoltaic controller and switching loss all higher, and then causes the efficiency of photovoltaic controller lower.
Utility model content
The utility model object is to provide a kind of high efficiency high-frequency isolation type photovoltaic controller.
The utility model technical solution problem adopts following technical scheme: a kind of high-frequency isolation type photovoltaic controller, comprising: boosting unit, High-frequency Interference filtering EMI unit, power factor correction PFC unit, DC/DC converter unit, rectification filtering unit, central processing unit CPU and input voltage measurement unit; The high-frequency isolation transformer that described DC/DC converter unit comprises MOS type field effect transistor and is connected with described MOS type field effect transistor;
One end of described boosting unit is connected with the output of photovoltaic battery panel, this end connects one end of described input voltage measurement unit simultaneously, the other end of described boosting unit is connected with one end of described High-frequency Interference filtering EMI unit, and described boosting unit is connected with described central processing unit CPU simultaneously; The other end of described High-frequency Interference filtering EMI unit is connected with one end of described power factor correction PFC unit; The other end of described power factor correction PFC unit is connected with the MOS type field effect transistor of described DC/DC converter unit; The high-frequency isolation transformer of described DC/DC converter unit is connected with one end of described rectification filtering unit, and the other end of described rectification filtering unit is connected with the input of storage battery; The other end of described input voltage measurement unit is connected with described central processing unit CPU.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: input electric cur-rent measure unit and MPPT maximum power point tracking MPPT unit;
One end of described boosting unit is also connected with one end of described input voltage measurement unit, and the other end of described input boosting detecting unit is connected with described central processing unit CPU; One end of described MPPT maximum power point tracking MPPT unit is connected with described central processing unit CPU, and the other end is connected with the MOS type field effect transistor of described DC/DC converter unit.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: output voltage detecting unit, output electric current measure unit and pulse-width adjustment PWM driver element;
Described output voltage detecting unit is connected with the other end of described rectification filtering unit respectively with one end of output electric current measure unit, and described output voltage detecting unit is connected with described central processing unit CPU respectively with the other end of output electric current measure unit; One end of described pulse-width adjustment PWM driver element is connected with described central processing unit CPU, and the other end is connected with the MOS type field effect transistor of described DC/DC converter unit.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: proportion integration differentiation PID regulon;
Described proportion integration differentiation PID regulon is connected with described central processing unit CPU with described pulse-width adjustment PWM driver element respectively.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: battery temp sensing unit and/or DC/DC temperature sensing unit;
Described battery temp sensing unit is arranged on described storage battery, is connected with described central processing unit CPU; Described DC/DC temperature sensing unit is arranged on described DC/DC converter unit, is connected with described central processing unit CPU; Described central processing unit CPU is also connected with described DC/DC converter unit.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: communication unit;
Described central processing unit CPU is connected with exterior terminal by described communication unit;
Described communication unit comprises: Landline communication unit and/or wireless communication unit;
Described exterior terminal, comprising: one or more in host computer, service unit, user terminal and instruction inputting device.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: input superpressure and under-voltage protection unit and/or export under-voltage and overload protection unit;
Described input superpressure and under-voltage protection unit are connected with described central processing unit CPU; Described output is under-voltage and overload protection unit is connected with described rectification filtering unit with described central processing unit CPU respectively.
Optionally, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: reverse connecting protection unit;
Described boosting unit is connected with described High-frequency Interference filtering EMI unit by described reverse connecting protection unit.
Optionally, described in the high-frequency isolation type photovoltaic controller that provides of the present embodiment, DC/DC converter unit comprises:
Single tube pulse-width adjustment DC/DC converter unit or bridge-type pulse-width adjustment DC/DC converter unit.
The utility model has following beneficial effect: because high-frequency isolation type photovoltaic controller improves voltage by boosting unit, when high-frequency isolation type photovoltaic controller is controlled by High-frequency Interference filtering EMI unit, power factor correction PFC unit, DC/DC converter unit, rectification filtering unit, central processing unit CPU and input voltage measurement unit, the loss that in control procedure, said elements produces can be reduced, thus improve the efficiency of high-frequency isolation type photovoltaic controller.The technical scheme that the utility model provides, solve in prior art that the voltage of high-frequency isolation type photovoltaic controller is lower, electric current is higher because photovoltaic battery panel is input to, make the line loss of high-frequency isolation type photovoltaic controller and switching loss all higher, and then cause the problem that the efficiency of high-frequency isolation type photovoltaic controller is lower.In addition, this programme, according to the boosting multiple of the input voltage value adjustment boosting unit of input voltage measurement unit inspection, can improve the utilance of solar energy; Further, because DC/DC converter unit comprises MOS type field effect transistor and high-frequency isolation transformer, therefore can realize input and output high-frequency isolation by high-frequency isolation transformer, thus prevent accumulator super-charge, extend the useful life of storage battery.
Accompanying drawing explanation
The structural representation one of the high-frequency isolation type photovoltaic controller that Fig. 1 provides for the utility model embodiment 1;
The structural representation two of the high-frequency isolation type photovoltaic controller that Fig. 2 provides for the utility model embodiment 1;
The structural representation three of the high-frequency isolation type photovoltaic controller that Fig. 3 provides for the utility model embodiment 1;
The structural representation four of the high-frequency isolation type photovoltaic controller that Fig. 4 provides for the utility model embodiment 1;
The structural representation five of the high-frequency isolation type photovoltaic controller that Fig. 5 provides for the utility model embodiment 1;
The structural representation six of the high-frequency isolation type photovoltaic controller that Fig. 6 provides for the utility model embodiment 1;
The structural representation seven of the high-frequency isolation type photovoltaic controller that Fig. 7 provides for the utility model embodiment 1;
The structural representation eight of the high-frequency isolation type photovoltaic controller that Fig. 8 provides for the utility model embodiment 1.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
As shown in Figure 1, present embodiments provide a kind of high-frequency isolation type photovoltaic controller, comprising: boosting unit 101, High-frequency Interference filtering EMI unit 102, power factor correction PFC unit 103, DC/DC converter unit 104, rectification filtering unit 105, central processing unit CPU 106 and input voltage measurement unit 107; The high-frequency isolation transformer 1042 that DC/DC converter unit 104 comprises MOS type field effect transistor 1041 and is connected with described MOS type field effect transistor.Wherein, one end of boosting unit is connected with the output of photovoltaic battery panel, this end connects one end of input voltage measurement unit simultaneously, and the other end of boosting unit is connected with one end of High-frequency Interference filtering EMI unit, and boosting unit is connected with central processing unit CPU simultaneously; The other end of High-frequency Interference filtering EMI unit is connected with one end of power factor correction PFC unit; The other end of power factor correction PFC unit is connected with the MOS type field effect transistor of DC/DC converter unit; The high-frequency isolation transformer of DC/DC converter unit is connected with one end of rectification filtering unit, and the other end of rectification filtering unit is connected with the input of storage battery; The other end of input voltage measurement unit is connected with central processing unit CPU.
In the present embodiment, high-frequency isolation type photovoltaic controller raises this voltage by boosting unit after receiving the voltage of photovoltaic battery panel output, and by High-frequency Interference filtering EMI unit filtering interfering, by power factor correction PFC unit adjustment electric power utilance; Then carry out high-frequency isolation and pulse-width adjustment by DC/DC converter unit, and output to storage battery after carrying out rectifying and wave-filtering by rectification filtering unit, storage battery is stored electric energy.Wherein, boosting unit boosting multiple by central processing unit CPU according to input voltage measurement unit inspection to input voltage value control.
In the present embodiment, boosting unit can realize its function by electronic components such as capacitor, inductor, field effect transistor; High-frequency Interference filtering EMI unit can realize its function by electronic components such as capacitor, inductor, resistors; Power factor correction PFC unit can realize its function by the electronic component such as inductor and capacitor; DC/DC converter unit 104 can be single tube pulse-width adjustment DC/DC converter unit; In order to improve efficiency and the stability of high-frequency isolation type photovoltaic controller, this DC/DC converter unit 104 can also be bridge-type pulse-width adjustment DC/DC converter unit, and this DC/DC converter unit 104 can realize its function by electronic components such as field effect transistor; Rectification filtering unit can realize its function by the electronic component such as diode, capacitor; Input voltage measurement unit can realize its function by electronic components such as resistor, capacitor, comparators.Wherein, when DC/DC converter unit 104 is bridge-type pulse-width adjustment DC/DC converter unit, the number of the MOS type field effect transistor comprised is 4, forms bridge circuit by 4 MOS type field effect transistor and high-frequency isolation transformer, and power factor correction PFC unit is connected with the input of bridge circuit.
In the present embodiment, the voltage outputting to high-frequency isolation type photovoltaic controller due to photovoltaic battery panel can reflect current illumination condition, therefore, after input voltage measurement unit to input voltage value, this input voltage value is sent to central processing unit CPU by input voltage measurement unit; After central processing unit CPU receives the input voltage value of input voltage measurement unit transmission, determine according to this input voltage value the multiple that boosts, and control boosting unit according to this boosting multiple, thus realize the automatic control of boosting unit.
Further, in order to optimization uses storage battery, as shown in Figure 2, the high-frequency isolation type photovoltaic controller that the present embodiment provides also comprises: input electric cur-rent measure unit 108 and MPPT maximum power point tracking MPPT unit 109.Wherein, one end of boosting unit is also connected with one end of input voltage measurement unit, and the other end of input boosting detecting unit is connected with central processing unit CPU; One end of MPPT maximum power point tracking MPPT unit is connected with central processing unit CPU, and the other end is connected with the MOS type field effect transistor of DC/DC converter unit.
In the present embodiment, after central processing unit CPU obtains input voltage value and input current value by input voltage measurement unit and input electric cur-rent measure unit, central processing unit CPU controls MPPT maximum power point tracking MPPT unit according to this input voltage value and input current value determination controling parameters, and according to this controling parameters, DC/DC converter unit is controlled, make high-frequency isolation type photovoltaic controller with maximum power output to charge in batteries, use to reach storage battery optimization.Wherein, MPPT maximum power point tracking MPPT unit can realize its function by electronic components such as inductor, capacitor, diode, switches; Input electric cur-rent measure unit can realize its function by electronic components such as resistor, capacitor, comparators.
Now, as shown in Figure 3, this high-frequency isolation type photovoltaic controller also comprises: output voltage detecting unit 110, output electric current measure unit 111 and pulse-width adjustment PWM driver element 112.Wherein, output voltage detecting unit is connected with the other end of described rectification filtering unit respectively with one end of output electric current measure unit, and described output voltage detecting unit is connected with described central processing unit CPU respectively with the other end of output electric current measure unit; One end of described pulse-width adjustment PWM driver element is connected with described central processing unit CPU, and the other end is connected with the MOS type field effect transistor of described DC/DC converter unit.
In the present embodiment, after central processing unit CPU obtains input voltage value, input current value, output voltage values and output current value by input voltage measurement unit, input electric cur-rent measure unit, output voltage detecting unit and output electric current measure unit, central processing unit CPU controls pulse-width adjustment PWM driver element according to after above-mentioned electric current and voltage value determination pulse-width adjustment parameter, and DC/DC converter unit is controlled according to this pulse-width adjustment parameter.Wherein, input voltage measurement unit and output electric current measure unit all can realize its function by electronic components such as resistor, capacitor, comparators; Pulse-width adjustment PWM driver element can realize its function by electronic components such as resistor, capacitor, inductor, diodes.
Now, in order to avoid producing concussion, improve stability, this high-frequency isolation type photovoltaic controller, as shown in Figure 4, can also comprise: proportion integration differentiation PID regulon 113.Wherein, proportion integration differentiation PID regulon is connected with described central processing unit CPU with described pulse-width adjustment PWM driver element respectively.
In the present embodiment, after central processing unit CPU obtains input voltage value, input current value, output voltage values and output current value by input voltage measurement unit, input electric cur-rent measure unit, output voltage detecting unit and output electric current measure unit, central processing unit CPU control ratio integral differential PID regulon carries out ratio, integration and differentiation regulates, thus raising control precision, avoid producing concussion, improve stability.
Further, as shown in Figure 5, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: battery temp sensing unit 114 and/or DC/DC temperature sensing unit 115.Wherein, battery temp sensing unit is arranged on described storage battery, is connected with described central processing unit CPU; DC/DC temperature sensing unit is arranged on described DC/DC converter unit, is connected with described central processing unit CPU; Central processing unit CPU is also connected with described DC/DC converter unit.
In the present embodiment, Fig. 5 had not only comprised battery temp sensing unit for high-frequency isolation type photovoltaic controller but also had comprised DC/DC temperature sensing unit and had been described, when only comprising a kind of temperature sensing unit, the structure of high-frequency isolation type photovoltaic controller and similar shown in Fig. 5, this is no longer going to repeat them.
In the present embodiment, can be detected by the temperature of battery temp sensing unit to storage battery, and according to temperature, voltage be adjusted, realize temperature-compensating, reduce to transfer to the electric current of storage battery thus the temperature of reduction storage battery, extend the useful life of storage battery.Also can be detected by the temperature of DC/DC temperature sensing unit to DC/DC converter unit; when the temperature of the DC/DC converter unit that central processing unit CPU receives is greater than default Second Threshold; central processing unit CPU turns off DC/DC converter unit; reduce the temperature of DC/DC converter unit, to protect DC/DC converter unit.
Further, as shown in Figure 6, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: communication unit 116.Wherein, described central processing unit CPU is connected with exterior terminal by described communication unit; Described communication unit comprises: Landline communication unit and/or wireless communication unit; Described exterior terminal, comprising: one or more in host computer, service unit, user terminal and instruction inputting device.
In the present embodiment, high-frequency isolation type photovoltaic controller can receive by communication unit the instruction that exterior terminal sends, can also by communication unit externally terminal send the data such as electric current and voltage, thus realize remote monitoring, this is no longer going to repeat them.
Further, as shown in Figure 7, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: input superpressure and under-voltage protection unit 117 and/or export under-voltage and overload protection unit 118.Wherein, described input superpressure and under-voltage protection unit are connected with described central processing unit CPU; Described output is under-voltage and overload protection unit is connected with described rectification filtering unit with described central processing unit CPU respectively.
In the present embodiment, Fig. 7 comprises input superpressure and under-voltage protection unit 117 for high-frequency isolation type photovoltaic controller and exports under-voltage and overload protection unit and is described; When high-frequency isolation type photovoltaic controller only comprises above-mentioned a kind of unit, similar shown in structure to Fig. 7, this is no longer going to repeat them.
Further, as shown in Figure 8, the high-frequency isolation type photovoltaic controller that the present embodiment provides, also comprises: reverse connecting protection unit 119.Described boosting unit is connected with described High-frequency Interference filtering EMI unit by described reverse connecting protection unit.
The utility model has following beneficial effect: because high-frequency isolation type photovoltaic controller improves voltage by boosting unit, when high-frequency isolation type photovoltaic controller is controlled by High-frequency Interference filtering EMI unit, power factor correction PFC unit, DC/DC converter unit, rectification filtering unit, central processing unit CPU and input voltage measurement unit, the loss that in control procedure, said elements produces can be reduced, thus improve the efficiency of high-frequency isolation type photovoltaic controller.The technical scheme that the utility model provides, solve in prior art that the voltage of high-frequency isolation type photovoltaic controller is lower, electric current is higher because photovoltaic battery panel is input to, make the line loss of high-frequency isolation type photovoltaic controller and switching loss all higher, and then cause the problem that the efficiency of high-frequency isolation type photovoltaic controller is lower.In addition, this programme, according to the boosting multiple of the input voltage value adjustment boosting unit of input voltage measurement unit inspection, can improve the utilance of solar energy; Further, because DC/DC converter unit comprises MOS type field effect transistor and high-frequency isolation transformer, therefore can realize input and output high-frequency isolation by high-frequency isolation transformer, thus prevent accumulator super-charge, extend the useful life of storage battery.
The sequencing of above embodiment, only for ease of describing, does not represent the quality of embodiment.
Last it is noted that above embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (9)
1. a high-frequency isolation type photovoltaic controller, is characterized in that, comprising:
Boosting unit, High-frequency Interference filtering EMI unit, power factor correction PFC unit, DC/DC converter unit, rectification filtering unit, central processing unit CPU and input voltage measurement unit; The high-frequency isolation transformer that described DC/DC converter unit comprises MOS type field effect transistor and is connected with described MOS type field effect transistor;
One end of described boosting unit is connected with the output of photovoltaic battery panel, this end connects one end of described input voltage measurement unit simultaneously, the other end of described boosting unit is connected with one end of described High-frequency Interference filtering EMI unit, and described boosting unit is connected with described central processing unit CPU simultaneously; The other end of described High-frequency Interference filtering EMI unit is connected with one end of described power factor correction PFC unit; The other end of described power factor correction PFC unit is connected with the MOS type field effect transistor of described DC/DC converter unit; The high-frequency isolation transformer of described DC/DC converter unit is connected with one end of described rectification filtering unit, and the other end of described rectification filtering unit is connected with the input of storage battery; The other end of described input voltage measurement unit is connected with described central processing unit CPU.
2. high-frequency isolation type photovoltaic controller according to claim 1, is characterized in that, also comprise:
Input electric cur-rent measure unit and MPPT maximum power point tracking MPPT unit;
One end of described boosting unit is also connected with one end of described input voltage measurement unit, and the other end of described input boosting detecting unit is connected with described central processing unit CPU; One end of described MPPT maximum power point tracking MPPT unit is connected with described central processing unit CPU, and the other end is connected with the MOS type field effect transistor of described DC/DC converter unit.
3. high-frequency isolation type photovoltaic controller according to claim 2, is characterized in that, also comprise:
Output voltage detecting unit, output electric current measure unit and pulse-width adjustment PWM driver element;
Described output voltage detecting unit is connected with the other end of described rectification filtering unit respectively with one end of output electric current measure unit, and described output voltage detecting unit is connected with described central processing unit CPU respectively with the other end of output electric current measure unit; One end of described pulse-width adjustment PWM driver element is connected with described central processing unit CPU, and the other end is connected with the MOS type field effect transistor of described DC/DC converter unit.
4. high-frequency isolation type photovoltaic controller according to claim 3, is characterized in that, also comprise:
Proportion integration differentiation PID regulon;
Described proportion integration differentiation PID regulon is connected with described central processing unit CPU with described pulse-width adjustment PWM driver element respectively.
5. high-frequency isolation type photovoltaic controller according to claim 1, is characterized in that, also comprise:
Battery temp sensing unit and/or DC/DC temperature sensing unit;
Described battery temp sensing unit is arranged on described storage battery, is connected with described central processing unit CPU; Described DC/DC temperature sensing unit is arranged on described DC/DC converter unit, is connected with described central processing unit CPU; Described central processing unit CPU is also connected with described DC/DC converter unit.
6. high-frequency isolation type photovoltaic controller as claimed in any of claims 1 to 5, is characterized in that, also comprise:
Communication unit;
Described central processing unit CPU is connected with exterior terminal by described communication unit;
Described communication unit comprises: Landline communication unit and/or wireless communication unit;
Described exterior terminal, comprising: one or more in host computer, service unit, user terminal and instruction inputting device.
7. high-frequency isolation type photovoltaic controller as claimed in any of claims 1 to 5, is characterized in that, also comprise:
Input superpressure and under-voltage protection unit and/or export under-voltage and overload protection unit;
Described input superpressure and under-voltage protection unit are connected with described central processing unit CPU; Described output is under-voltage and overload protection unit is connected with described rectification filtering unit with described central processing unit CPU respectively.
8. high-frequency isolation type photovoltaic controller as claimed in any of claims 1 to 5, is characterized in that, also comprise:
Reverse connecting protection unit;
Described boosting unit is connected with described High-frequency Interference filtering EMI unit by described reverse connecting protection unit.
9. high-frequency isolation type photovoltaic controller as claimed in any of claims 1 to 5, is characterized in that, described DC/DC converter unit comprises:
Single tube pulse-width adjustment DC/DC converter unit or bridge-type pulse-width adjustment DC/DC converter unit.
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| CN201420552036.6U CN204168143U (en) | 2014-09-24 | 2014-09-24 | high-frequency isolation type photovoltaic controller |
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| CN201420552036.6U CN204168143U (en) | 2014-09-24 | 2014-09-24 | high-frequency isolation type photovoltaic controller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490373A (en) * | 2016-01-13 | 2016-04-13 | 深圳市泰昂能源科技股份有限公司 | Photovoltaic parallel-battery setting device |
| CN111181237A (en) * | 2020-01-07 | 2020-05-19 | 中国联合网络通信集团有限公司 | Photovoltaic control method, photovoltaic power supply device and system |
-
2014
- 2014-09-24 CN CN201420552036.6U patent/CN204168143U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490373A (en) * | 2016-01-13 | 2016-04-13 | 深圳市泰昂能源科技股份有限公司 | Photovoltaic parallel-battery setting device |
| CN111181237A (en) * | 2020-01-07 | 2020-05-19 | 中国联合网络通信集团有限公司 | Photovoltaic control method, photovoltaic power supply device and system |
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Address after: 100086, No. 1506, Beijing science and Technology Exhibition Center office building, 2 South Avenue, Beijing, Haidian District, Zhongguancun Patentee after: POWSYS TECHNOLOGY Inc. Patentee after: BEIJING POWSYS CONTROL CO.,LTD. Address before: 100086, No. 1506, Beijing science and Technology Exhibition Center office building, 2 South Avenue, Beijing, Haidian District, Zhongguancun Patentee before: POWSYS TECHNOLOGY Inc. Patentee before: Beijing Powsys Technology Inc. |
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