CN202840997U - Mini-type photovoltaic inverter with composite three-level structure and based on DSP - Google Patents
Mini-type photovoltaic inverter with composite three-level structure and based on DSP Download PDFInfo
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- CN202840997U CN202840997U CN 201220444196 CN201220444196U CN202840997U CN 202840997 U CN202840997 U CN 202840997U CN 201220444196 CN201220444196 CN 201220444196 CN 201220444196 U CN201220444196 U CN 201220444196U CN 202840997 U CN202840997 U CN 202840997U
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Abstract
The utility model relates to the field of solar photovoltaic power generation and especially relates to a mini-type photovoltaic inverter with a composite three-level structure and based on DSP. The mini-type photovoltaic inverter with the composite three-level structure and based on DSP is realized by adopting the below technical scheme. The mini-type photovoltaic inverter with the composite three-level structure and based on DSP includes solar cell interfaces, an input voltage current detecting module, boost converting modules, a push-pull converting module, a whole-bridge inverting module, an output filtering module, an output voltage current detecting module and a DSP control module. The number of the solar cell interfaces is two. The number of the boost converting modules is two and the two boost converting modules are connected with two sub boost converting modules of the solar cell interfaces respectively and correspondingly. The mini-type photovoltaic inverter with the composite three-level structure and based on DSP provided by the utility model can be connected with two solar cell modules at the same time. Therefore, the application amount of mini-type photovoltaic inverters in a solar power generation system is reduced and the cost is reduced.
Description
Technical field
The utility model relates to the solar energy power generating field, particularly a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP.
Background technology
In traditional photovoltaic generating system, a plurality of photovoltaic battery panels are together in series (being generally 6-10), are attached to the direct-flow input end of a group serial type photovoltaic DC-to-AC converter, and through after the inversion, power delivery is to electrical network.This mode exists because the unequal problem of sunshine inequality and characteristic of solar cell causes power output and descends, thereby reduces the power of whole output.
What occur on the market all is equipped with a miniature solar inverter to every solar module, can reach whole solar cell power output maximum, most effective, be the disclosed photovoltaic miniature grid-connected inverter control device of application for a patent for invention of CN102074968A such as application publication number; And for example application publication number is the disclosed grid-connected photovoltaic Miniature inverter of application for a patent for invention of CN102332841A; Application publication number is the disclosed flyback type miniature photovoltaic DC-to-AC converter of application for a patent for invention of CN102522766A for another example; More and for example, application publication number is the disclosed Miniature inverter of application for a patent for invention of CN102624286A.
Above-mentioned Miniature inverter all also arranges for a solar module, also be that each Miniature inverter can only be connected to a solar module, although this kind mode is conducive to make the power output maximization of solar cell, yet, when a plurality of solar modules use simultaneously, have the larger problem of Miniature inverter use amount, thereby so that the solar power system holistic cost is higher.
The utility model content
The purpose of this utility model provides a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP, and it can connect two solar modules simultaneously, therefore, has saved the application of Miniature inverter in solar power system, has reduced cost.
Above-mentioned technical purpose of the present utility model is achieved by the following technical programs: a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP, comprise solar cell interface, input voltage and input current detection module, boosting inverter module, recommend conversion module, full-bridge inverting module, output filtering module, output voltage current detection module, DSP control module, described solar cell interface has two, and the boosting inverter module is two two minutes conversion modules that boost that are connected to corresponding solar cell interface.
Boosting inverter module in the technique scheme, recommend conversion module, full-bridge inverting module three consists of compound tertiary structure, add the setting of the conversion module that boosted in two minutes, be equivalent to integrated two MPPT circuit in same inverter, therefore, can carry out MPPT maximum power point tracking and inversion to two solar modules simultaneously, thereby reduced the use amount of contrary Miniature inverter in the solar power system, and then reduced the cost of solar power system.
As of the present utility model preferred, described each minute the boost circuit of conversion module comprise boost inductance, the first switch MOS pipe, afterflow metal-oxide-semiconductor, the first decoupling capacitance; The S utmost point of the first switch MOS pipe D utmost point and afterflow metal-oxide-semiconductor is connected to the output of boost inductance; Be connected with the first decoupling capacitance between the D utmost point of the first switch MOS pipe S utmost point and afterflow metal-oxide-semiconductor; The G utmost point of the first switch MOS pipe and afterflow metal-oxide-semiconductor is connected to the DSP control module; The input of boost inductance has the first current/voltage test point that is connected to the DSP control module by the input voltage and input current detection module.
The DSP control module is controlled the break-make of the first switch MOS pipe and afterflow metal-oxide-semiconductor; The first switch MOS pipe and afterflow metal-oxide-semiconductor driving signal mutual symmetry that each minute boosted conversion module adopt synchronous rectification, have improved efficient.
As of the present utility model preferred, described circuit of recommending conversion module comprises transformer, the first former limit switch MOS pipe, the second former limit switch MOS pipe, secondary resonant inductance, secondary resonant capacitance, output rectifying tube, the second decoupling capacitance; The D utmost point of the first former limit switch MOS pipe is connected to the non-same polarity of transformer primary side winding, and the D utmost point of the second former limit switch MOS pipe is connected to the Same Name of Ends of transformer primary side winding; The centre tap of described transformer primary side winding is connected to the D utmost point of two described afterflow metal-oxide-semiconductors; The S utmost point of the first former limit switch MOS pipe and the second former limit switch MOS pipe all is connected to the S utmost point of two the first switch MOS pipes; The G utmost point of the first former limit switch MOS pipe and the second former limit switch MOS pipe is connected to the DSP control module; The centre tap of former limit winding also has the second voltage test point.
The DSP control module is controlled the break-make of the first former limit switch MOS pipe and the second former limit switch MOS pipe, and the first former limit switch MOS pipe and switch MOS pipe mutual symmetry interval, the second former limit break-make, and adopt the series resonance soft switch technique, improved the efficient of this grade converter.
As of the present utility model preferred, described full-bridge inverting module comprises four second switch metal-oxide-semiconductors that are parallel to the second decoupling capacitance, is divided into second switch metal-oxide-semiconductor one, second switch metal-oxide-semiconductor two, second switch metal-oxide-semiconductor three, second switch metal-oxide-semiconductor four; The D utmost point of second switch metal-oxide-semiconductor one and second switch metal-oxide-semiconductor three is connected to the positive pole of the second decoupling capacitance; The S utmost point of second switch metal-oxide-semiconductor two and second switch metal-oxide-semiconductor four is connected to the negative pole of the second decoupling capacitance; The S utmost point of second switch metal-oxide-semiconductor one is connected to the D utmost point of second switch metal-oxide-semiconductor two; The S utmost point of second switch metal-oxide-semiconductor three is connected to the D utmost point of second switch metal-oxide-semiconductor four; The G utmost point of all described second switch metal-oxide-semiconductors is connected to the DSP control module; Second switch metal-oxide-semiconductor one also has the tertiary voltage test point with the D utmost point of second switch metal-oxide-semiconductor three.
As of the present utility model preferred, described output filtering module comprises that an end is connected in filter capacitor, an end between the other end that the first filter inductance of the S utmost point of second switch metal-oxide-semiconductor one, an end be connected in the second filter inductance of the S utmost point of second switch metal-oxide-semiconductor three, the other end that is connected in the first filter inductance and the second filter inductance and is connected in the 3rd filter inductance between the first filter inductance and the filter capacitor.
Carry out High frequency filter, thereby realize generating electricity by way of merging two or more grid systems.
As of the present utility model preferred, the other end of described the 3rd filter inductance has the 4th current/voltage test point that is connected to the DSP control module by the output voltage current detection module.
Realization is to the real-time tracking of line voltage current phase; The current-voltage information of DSP control module by detecting from the 4th current/voltage test point adopts the break-make of four second switch metal-oxide-semiconductors of sinusoidal pulse width modulation technology control, thereby realizes the inversion of DC/AC.
As of the present utility model preferred, described DSP control module is divided into the former limit DSP control module of obtaining the first current/voltage test point and the second current/voltage test point current-voltage information, the secondary DSP control module of obtaining the 3rd current/voltage test point and the 4th current/voltage test point current-voltage information; And two described the first switch MOS pipes, two described afterflow metal-oxide-semiconductors, the described first former limit switch MOS pipe, the described second former limit switch MOS pipes all are connected to former limit DSP control module; Four described second switch metal-oxide-semiconductors are connected to secondary DSP control module.
In sum, the utlity model has following beneficial effect:
1, the utility model can connect two solar modules simultaneously, and simultaneously these two solar modules is carried out MPPT maximum power point tracking, thereby reduces the application of Miniature inverter in the solar power system, reduces cost;
2, the circuit of the compound tertiary structure of the utility model has reduced the capacity of decoupling capacitance, effectively reduces to flow through the electric current of electrochemical capacitor, and namely ripple current reduces caloric value, thereby has the effect that reduces the electrochemical capacitor temperature rise, prolongs its working life;
3, integrated use synchronous rectification, series resonance soft switch technique, effectively reduce the wastage, improved operating efficiency of the present utility model.
4, adopt two DSP control modules of former secondary; Effectively accomplished the electrical isolation of former secondary.
Description of drawings
Fig. 1 is connection diagram between each module of embodiment;
Fig. 2 is the circuit diagram of the compound tertiary structure of embodiment.
Among the figure, 1, the solar cell interface, 2, the input voltage and input current detection module, 31, the boosting inverter module, 32, recommend conversion module, 33, the full-bridge inverting module, 4, the output filtering module, 5, the output voltage current detection module, 6, the DSP control module, 61, former limit DSP control module, 62, secondary DSP control module, 311, divide the conversion module that boosts, 3011, first input end, 3012, the second input, 3013, the 3rd input, 3014, four-input terminal, 3111, boost inductance, 3112, the afterflow metal-oxide-semiconductor, 3113, the first decoupling capacitance, 3114, the first switch MOS pipe, 3015, the first current/voltage test point, 3016, the second current/voltage test point, 321, transformer, 3211, centre tap, 3212, non-same polarity, 3213, Same Name of Ends, 322, the first former limit switch MOS pipe, 323, the second former limit switch MOS pipe, 324, resonant inductance, 325, resonant capacitance, 326, the output rectifying tube, 327, the second decoupling capacitance, 3017, the 3rd current/voltage test point, 331, second switch metal-oxide-semiconductor one, 332, second switch metal-oxide-semiconductor two, 333, second switch metal-oxide-semiconductor three, 334, second switch metal-oxide-semiconductor four, 41, the first filter inductance, 42 second filter inductances, 43, filter capacitor, 44, the 3rd filter inductance, 3018, the 4th current/voltage test point.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
This specific embodiment only is to explanation of the present utility model; it is not to restriction of the present utility model; those skilled in the art can make the modification that does not have creative contribution to the present embodiment as required after reading this specification, but as long as all are subject to the protection of Patent Law in claim scope of the present utility model.
Embodiment: a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP, as shown in Figure 1, comprise two solar cell interfaces 1, input voltage and input current detection module 2, boosting inverter module 31, recommend conversion module 32, full-bridge inverting module 33, output filtering module 4, output voltage current detection module 5, DSP control module 6, in conjunction with Fig. 2, boosting inverter module 31 is two two minutes conversion modules 311 that boost that are connected to corresponding solar cell interface 1; DSP control module 6 is divided into former limit DSP control module 61, secondary DSP control module 62.
As shown in Figure 2, each divides the circuit of the conversion module 311 that boosts to have two inputs, be respectively first input end 3011 and second input 3012 of boosting inverter module 311 circuit, the 3rd input 3013 and four-input terminal 3014 of another boosting inverter module 311 circuit.
Another boosting inverter module 311 circuit comprise that an end is connected in another boost inductance 3111 of the 3rd input 3013, the other end of this boost inductance 3111 is connected in the S utmost point of another afterflow metal-oxide-semiconductor 3112, be connected with another the first decoupling capacitance 3113 between the D utmost point of this afterflow metal-oxide-semiconductor 3112 and the four-input terminal 3014, and be connected with another the first switch MOS pipe 3114 between the S utmost point of this afterflow metal-oxide-semiconductor 3112 and the four-input terminal 3014, the D utmost point of this first switch MOS pipe 3114 is connected in the S utmost point of corresponding afterflow metal-oxide-semiconductor 3112, and the S utmost point of this first switch MOS pipe 3114 is connected in four-input terminal 3014.
The D utmost point of two afterflow metal-oxide-semiconductors 3112 is connected, the S utmost point of two the first switch MOS pipes 3114 is connected, the G utmost point of two the first switch MOS pipes 3114 and the G utmost point of two afterflow metal-oxide-semiconductors 3112 all are connected in former limit DSP control module 61, and has the first current/voltage test point 3015 at first input end 3011, the 3rd input 3013 has another the first current/voltage test point 3015, in conjunction with Fig. 1, two the first current/voltage test points 3015 reach former limit DSP control module 61 by 2 detections of input current voltage detection module and with detection information; The D of two afterflow metal-oxide-semiconductors 3112 extremely goes up also to have is convenient to the second current/voltage test point 3016 that former limit DSP control module 61 is obtained this place's current-voltage information.
Two afterflow metal-oxide-semiconductors 3112 and two the first switch MOS pipes 3114 are opened and are turn-offed by 61 controls of former limit DSP control module, and the afterflow metal-oxide-semiconductor 3112 of each boosting inverter module 311 circuit and the first switch MOS pipe 3114 mutual symmetries, the interval break-make, and owing to the operating efficiency that has adopted synchronous rectification to improve minute to boost conversion module 311.
The operating state of boosting inverter module 31:
One of them divides the state of the conversion module 311 that boosts: when afterflow metal-oxide-semiconductor 3112 turn-offed, the first switch MOS pipe 3114 was open-minded, and boost inductance 3111 is in energy storage state, keeps the voltage that rear class is recommended conversion module 32 by the first decoupling capacitance 3113;
And meanwhile another minute the boost state of conversion module 311: the first switch MOS pipe 3114 turn-offs, and afterflow metal-oxide-semiconductor 3112 is open-minded, and the first decoupling capacitance 3113 is in charged state;
The operating state of conversion module 311 of boosting in two minutes replaces mutually.
The circuit of recommending conversion module 32 comprises that the centre tap 3211 of former limit winding is connected to the transformer 321 of the D utmost point of two afterflow metal-oxide-semiconductors 3112, the non-same polarity 3212 of the former limit winding of transformer 321 is connected to the D utmost point of the first former limit switch MOS pipe 322, the Same Name of Ends 3213 of former limit winding is connected to the D utmost point of the second former limit switch MOS pipe 323, and the S utmost point of the S utmost point of the first former limit switch MOS pipe 322 and the second former limit switch MOS pipe 323 all is connected to the S utmost point of the first switch MOS pipe 3114; The G utmost point of the G utmost point of the first former limit switch MOS pipe 322 and the second former limit switch MOS pipe 323 all is connected to former limit DSP control module 61; The secondary winding of transformer 321 also is connected with resonant inductance 324 and resonant capacitance 325, and be connected in the rectification circuit that is consisted of by four output rectifying tubes 326 between resonant inductance 324 and the resonant capacitance 325, also be connected with the second decoupling capacitance 327 between the two ends of rectification circuit, and also have at an end of rectification circuit and to be convenient to the 3rd current/voltage test point 3017 that secondary DSP control module 62 is obtained this place's current-voltage information; The first former limit switch MOS pipe the 322 and second former limit switch MOS pipe 323 is opened and is turn-offed by 61 controls of former limit DSP control module, and the first former limit switch MOS pipe the 322 and second former limit switch MOS pipe 323 interval break-makes, adopt the series resonance soft switch technique, improved the operating efficiency of recommending conversion module 32.
Generality, boosting inverter module 31 output 60V left and right sides voltages can rise to about 400V through recommending conversion module 32, thereby so that the second decoupling capacitance 327 can adopt the low capacity high-voltage capacitance, thereby be conducive to increase the inverter life-span.
The full-bridge inverting module comprises four second switch metal-oxide-semiconductors that are parallel to the second decoupling capacitance 327, is divided into second switch metal-oxide-semiconductor 1, second switch metal-oxide-semiconductor 2 332, second switch metal-oxide-semiconductor 3 333, second switch metal-oxide-semiconductor 4 334; The D utmost point of second switch metal-oxide-semiconductor 1 and second switch metal-oxide-semiconductor 3 333 is connected to the positive pole of the second decoupling capacitance 327; The S utmost point of second switch metal-oxide-semiconductor 2 332 and second switch metal-oxide-semiconductor 4 334 is connected to the negative pole of the second decoupling capacitance 327; The S utmost point of second switch metal-oxide-semiconductor 1 is connected to the D utmost point of second switch metal-oxide-semiconductor 2 332; The S utmost point of second switch metal-oxide-semiconductor 3 333 is connected to the D utmost point of second switch metal-oxide-semiconductor 4 334; And the G utmost point of four second switch metal-oxide-semiconductors is connected to secondary DSP control module 62.
The output filtering module comprises that an end is connected in filter capacitor 43, an end between the other end of the second filter inductance 42, the other end that is connected in the first filter inductance 41 and the second filter inductance 42 of the S utmost point that the first filter inductance 41 of the S utmost point of second switch metal-oxide-semiconductor 1, an end be connected in second switch metal-oxide-semiconductor 3 333 and is connected in the 3rd filter inductance 44 between the first filter inductance 41 and the filter capacitor 43; The other end of the 3rd filter inductance 44 has the 4th current/voltage test point 3018, in conjunction with Fig. 1, the 4th current/voltage test point 3018 detects and the current-voltage information that will locate transfers to secondary DSP control module 62 through output voltage current detection module 5, the current-voltage information of secondary DSP control module 62 by obtaining from the 4th current/voltage test point 3018 adopts sinusoidal pulse width modulation technology to control the break-make of four second switch metal-oxide-semiconductors.
Claims (7)
1. miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP, comprise solar cell interface, input voltage and input current detection module, boosting inverter module, recommend conversion module, full-bridge inverting module, output filtering module, output voltage current detection module, DSP control module, it is characterized in that, described solar cell interface has two, and the boosting inverter module is two two minutes conversion modules that boost that are connected to corresponding solar cell interface.
2. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 1 is characterized in that, the circuit of described each conversion module that minute boosts comprises boost inductance, the first switch MOS pipe, afterflow metal-oxide-semiconductor, the first decoupling capacitance; The S utmost point of the first switch MOS pipe D utmost point and afterflow metal-oxide-semiconductor is connected to the output of boost inductance; Be connected with the first decoupling capacitance between the D utmost point of the first switch MOS pipe S utmost point and afterflow metal-oxide-semiconductor; The G utmost point of the first switch MOS pipe and afterflow metal-oxide-semiconductor is connected to the DSP control module; The input of boost inductance has the first current/voltage test point that is connected to the DSP control module by the input voltage and input current detection module.
3. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 2, it is characterized in that, described circuit of recommending conversion module comprises transformer, the first former limit switch MOS pipe, the second former limit switch MOS pipe, secondary resonant inductance, secondary resonant capacitance, output rectifying tube, the second decoupling capacitance; The D utmost point of the first former limit switch MOS pipe is connected to the non-same polarity of transformer primary side winding, and the D utmost point of the second former limit switch MOS pipe is connected to the Same Name of Ends of transformer primary side winding; The centre tap of described transformer primary side winding is connected to the D utmost point of two described afterflow metal-oxide-semiconductors; The S utmost point of the first former limit switch MOS pipe and the second former limit switch MOS pipe all is connected to the S utmost point of two the first switch MOS pipes; The G utmost point of the first former limit switch MOS pipe and the second former limit switch MOS pipe is connected to the DSP control module; The centre tap of former limit winding also has the second voltage test point.
4. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 3, it is characterized in that, described full-bridge inverting module comprises four second switch metal-oxide-semiconductors that are parallel to the second decoupling capacitance, is divided into second switch metal-oxide-semiconductor one, second switch metal-oxide-semiconductor two, second switch metal-oxide-semiconductor three, second switch metal-oxide-semiconductor four; The D utmost point of second switch metal-oxide-semiconductor one and second switch metal-oxide-semiconductor three is connected to the positive pole of the second decoupling capacitance; The S utmost point of second switch metal-oxide-semiconductor two and second switch metal-oxide-semiconductor four is connected to the negative pole of the second decoupling capacitance; The S utmost point of second switch metal-oxide-semiconductor one is connected to the D utmost point of second switch metal-oxide-semiconductor two; The S utmost point of second switch metal-oxide-semiconductor three is connected to the D utmost point of second switch metal-oxide-semiconductor four; The G utmost point of all described second switch metal-oxide-semiconductors is connected to the DSP control module; Second switch metal-oxide-semiconductor one also has the tertiary voltage test point with the D utmost point of second switch metal-oxide-semiconductor three.
5. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 4, it is characterized in that, described output filtering module comprises that an end is connected in filter capacitor, an end between the other end that the first filter inductance of the S utmost point of second switch metal-oxide-semiconductor one, an end be connected in the second filter inductance of the S utmost point of second switch metal-oxide-semiconductor three, the other end that is connected in the first filter inductance and the second filter inductance and is connected in the 3rd filter inductance between the first filter inductance and the filter capacitor.
6. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 5, it is characterized in that, the other end of described the 3rd filter inductance has the 4th current/voltage test point that is connected to the DSP control module by the output voltage current detection module.
7. a kind of miniature photovoltaic DC-to-AC converter of compound tertiary structure based on DSP according to claim 6, it is characterized in that, described DSP control module is divided into the former limit DSP control module of obtaining the first current/voltage test point and the second current/voltage test point current-voltage information, the secondary DSP control module of obtaining the 3rd current/voltage test point and the 4th current/voltage test point current-voltage information; And two described the first switch MOS pipes, two described afterflow metal-oxide-semiconductors, the described first former limit switch MOS pipe, the described second former limit switch MOS pipes all are connected to former limit DSP control module; Four described second switch metal-oxide-semiconductors are connected to secondary DSP control module.
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| CN 201220444196 CN202840997U (en) | 2012-09-03 | 2012-09-03 | Mini-type photovoltaic inverter with composite three-level structure and based on DSP |
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| CN 201220444196 CN202840997U (en) | 2012-09-03 | 2012-09-03 | Mini-type photovoltaic inverter with composite three-level structure and based on DSP |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441687A (en) * | 2013-07-29 | 2013-12-11 | 苏州高创特新能源发展有限公司 | Solar charging controlling and inverting all-in-one machine |
| CN104410316A (en) * | 2014-12-18 | 2015-03-11 | 盐城工学院 | High-frequency link inverter and digital control device thereof |
| CN105450073A (en) * | 2016-01-15 | 2016-03-30 | 安阳师范学院 | A single-phase photovoltaic grid-connected micro-inverter |
| CN106130434A (en) * | 2016-08-04 | 2016-11-16 | 国网江西省电力公司电力科学研究院 | A kind of utilize solar powered pump motor control system |
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2012
- 2012-09-03 CN CN 201220444196 patent/CN202840997U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441687A (en) * | 2013-07-29 | 2013-12-11 | 苏州高创特新能源发展有限公司 | Solar charging controlling and inverting all-in-one machine |
| CN104410316A (en) * | 2014-12-18 | 2015-03-11 | 盐城工学院 | High-frequency link inverter and digital control device thereof |
| CN104410316B (en) * | 2014-12-18 | 2017-01-11 | 盐城工学院 | High-frequency link inverter and digital control device thereof |
| CN105450073A (en) * | 2016-01-15 | 2016-03-30 | 安阳师范学院 | A single-phase photovoltaic grid-connected micro-inverter |
| CN105450073B (en) * | 2016-01-15 | 2018-01-23 | 安阳师范学院 | A kind of single-phase photovoltaic grid-connected micro- inverter |
| CN106130434A (en) * | 2016-08-04 | 2016-11-16 | 国网江西省电力公司电力科学研究院 | A kind of utilize solar powered pump motor control system |
| CN106130434B (en) * | 2016-08-04 | 2018-11-27 | 国网江西省电力公司电力科学研究院 | It is a kind of to utilize solar powered pump motor control system |
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