CN107630822A - A kind of permagnetic synchronous motor solar energy water pumping system and control method - Google Patents
A kind of permagnetic synchronous motor solar energy water pumping system and control method Download PDFInfo
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- CN107630822A CN107630822A CN201711091786.2A CN201711091786A CN107630822A CN 107630822 A CN107630822 A CN 107630822A CN 201711091786 A CN201711091786 A CN 201711091786A CN 107630822 A CN107630822 A CN 107630822A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 238000005086 pumping Methods 0.000 title claims abstract description 28
- 230000001360 synchronised effect Effects 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 20
- 239000010959 steel Substances 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 14
- 238000007789 sealing Methods 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 7
- 230000008859 change Effects 0.000 claims description 4
- 230000007423 decrease Effects 0.000 claims description 3
- 230000001965 increasing effect Effects 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 241000237858 Gastropoda Species 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 8
- 150000002910 rare earth metals Chemical class 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000009427 motor defect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
Classifications
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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
Abstract
A kind of permagnetic synchronous motor solar energy water pumping system and control method, including photovoltaic array, controller, water tank and the water pump being made up of pump body unit and pump motor unit, photo-voltaic power supply line is connected between photovoltaic array and controller, motor lead-out wire is connected between controller and pump motor unit, water-supply-pipe is connected between water tank and pump body unit；Level sensor is provided with water where water pump and is connected by water level control line with controller, water tank is provided with cistern water level sensor and is connected by cistern water level control line with controller.The solar energy water pumping system of the present invention is run with the photovoltaic input power of maximum; solar energy is utilized, the operating efficiency of water pump greatly promotes, using rare earth permanent-magnet synchronization motor and its control system; the efficiency high of electric system, it can be achieved to automatically control, automatic protection.
Description
Technical field
The present invention relates to pump equipment and control technology field, more particularly to a kind of permagnetic synchronous motor solar water pump system
System and control method.
Background technology
Photovoltaic water pump system is directly to be generated electricity using solar cell photovoltaic effect, passes through a series of electric power electricity afterwards
Son, motor, water dispenser etc. control and performed link so as to the system that water lift is realized in rivers and lakes or deep-well.
Motor in existing technical scheme typically uses AC induction motor or permanent-magnet DC brush motor.Alternating current asynchronous
The defects of motor, has：1st, electric efficiency is low, and motor volume is big, weight weight；2nd, input voltage range is narrow, to input voltage
Fluctuation range restriction ratio is tighter；3rd, the performance of motor motor in high voltage or low voltage operating becomes；4th, it is strong in solar irradiation
During degree fluctuation, the fluctuation of water pump system operating efficiency is obvious, and the lift of water pump, changes in flow rate are obvious, the water in solar irradiation deficiency
Pump lift, flow can be decreased obviously, or even be able to not can be worked, and not utilize solar energy from point.And permanent-magnet DC brush motor
Defect has：1st, electric efficiency is low, and motor volume is big, weight weight；2nd, the power bracket of motor is small, is adapted to low-power machine；3rd, it is electric
Machine carbon brush needs to regularly replace, and carbon brush and commutator short life are, it is necessary to safeguard；4th, spark, electromagnetic interference are produced during motor commutation
Seriously.5th, when Intensity of the sunlight fluctuates, the fluctuation of water pump system operating efficiency is obvious, and the lift of water pump, changes in flow rate are obvious,
In solar irradiation deficiency, pump head, flow can be decreased obviously, or even be able to not can be worked, and not utilize solar energy from point.
The content of the invention
Present invention aim to address the deficiency of above-mentioned existing apparatus, there is provided a kind of permagnetic synchronous motor solar water pump system
System and control method, have that operating efficiency is big, the efficiency high of electric system, can be achieved to automatically control, automatic protection the characteristics of.
To reach above-mentioned purpose, the technical solution adopted by the present invention is as follows：
A kind of permagnetic synchronous motor solar energy water pumping system, including photovoltaic array, controller, water tank and by pump body unit and
The water pump of pump motor unit composition, is connected with photo-voltaic power supply line, controller and pump motor between photovoltaic array and controller
Motor lead-out wire is connected between unit, water-supply-pipe is connected between water tank and pump body unit.The design of photovoltaic array should
It should match with water pump system, and can be that AC single phase power supply or three phase mains input, controller has setting and display function,
The operation threshold of photovoltaic array, overcurrent protection, the setting of short-circuit protection value etc. can be set, shows running parameter and fault parameter etc..
Level sensor is provided with water where water pump and is connected by water level control line with controller, water tank is provided with water tank
Level sensor is simultaneously connected by cistern water level control line with controller.Sense extraneous and water tank water in real time by sensor
Position, controller start or stop system work after coherent signal is received.
Preferably, the pump body unit both ends are respectively water entering section and outlet part, between water entering section and outlet part
Pump shaft provided with the pump case for being enclosed on port and positioned at centre, water entering section are provided with pump housing flange, and pump shaft lower end is provided with shaft coupling, pump shaft
On be fixed with some impellers, the blade of impeller is placed in spiral case.Shaft coupling is used for the rotating shaft for connecting pump shaft and motor, and outlet part connects
Water-supply-pipe is connect, axis of rotation drives pump shaft and wheel rotation, water water entering section is entered from water entering section and flows up from outlet part stream
Go out, water tank is delivered to by water-supply-pipe.
Preferably, the pump shaft upper end is provided with the Upper shaft sleeve fixed by screw, screw is opened up in the end of pump shaft, on
Correspondence position opens up the hole for being available for screw to pass through on axle sleeve, and screw is screwed into screw and fixes Upper shaft sleeve, between Upper shaft sleeve and outlet part
Provided with rubber shaft bearing, the bearing above shaft coupling and below Upper shaft sleeve is provided with axle sleeve.
Preferably, the pump case and outlet part link position are provided with alignment pin and screw, plugged together in pump case and outlet part
Overlapping position opens up the hole of radial direction, and alignment pin inserts in the hole, and corresponding screw is axially opened up on outlet part and alignment pin,
Screw is screwed into screw and is fixed, and plays the effect for positioning and fixing during assembling.The delivery port of the outlet part is provided with check-valves
And jump ring a, during work, check-valves, which is moved up at jump ring a, to be stopped, and delivery port is opened, and when being stopped, is acted on by hydraulic pressure,
Check-valves, which falls, covers delivery port, avoids current from entering in water pump.
Preferably, the first design of pump motor unit, its both ends is respectively bottom end cover and upper end cover, bottom end cover and
The casing for being enclosed on port and the rotating shaft positioned at centre are provided between upper end cover, sealing gasket, rotating shaft are provided with casing upper and lower ends mouth
On be fixed with rotor assembly, is provided with stator module for position in casing, is provided with oil sealing between rotating shaft and upper end cover, on upper end cover
It is additionally provided with connecting bolt and outgoing line components.Rotating shaft is connected with bottom end cover and upper end cover respectively by bearing, and oil sealing acts on
In avoiding water from entering motor internal, connecting bolt is used to connect pump motor unit and pump body unit, and outgoing line components are used
In the waterproofing reinforcement of motor lead-out wire.The design can reduce water pump length, simple in construction, easy to assembly, be suitable for water and be pumped into water
The not high occasion of depth requirements uses.
Preferably, second of pump motor unit design, including step and top chock, step and upper
The casing for being enclosed on port and the rotating shaft positioned at centre are provided between bearing block, is fixed with rotor assembly in rotating shaft, in casing for
Position is provided with stator module, and mechanical seal is provided between rotating shaft and top chock, connecting bolt is additionally provided with top chock and draws
Outlet component.And there is extension below casing, casing lower port is set to necking, and card is sequentially provided with from top to bottom at necking
Spring b, base and oil sac.Rotating shaft is connected with step and top chock respectively by bearing, and the effect of mechanical seal is to keep away
Exempt from water and enter motor internal, the pressure difference that the structure of casing extended portion section and bottom oil sac is used for inside and outside regulation motor, this design
It is adapted to water pump underwater penetration to require that higher occasion uses.
Preferably, it is provided with built-in controller component in the pump motor unit.Built-in controller component is applied to small
Power motor（Generally below 1.5kw motors）, external type controller is suitable for the larger motor of power（General more than 1.0kw
Motor）.
Preferably, the stator module includes stator core and some machine windings, stator is provided between machine winding
Groove, stator core both ends are provided with insulating end plate.
Preferably, the first design of rotor assembly, including rotor core, rotor core outer wall are evenly distributed with some
Outer slot, outer slot bottom both sides are provided with enlarging and bottom surface is curved, are inserted into provided with the magnet steel a that shape matches with outer slot
In outer slot, rotor core both ends are provided with magnet steel baffle plate, and underlying magnet steel baffle bottom is provided with baffle plate retainer ring.
Preferably, second of rotor assembly design, including rotor core, some interpolations are offered on rotor core
Groove, interior slot combined shaped are in regular polygon or regular polygon, and magnet steel b is inserted into interior slot, and rotor core both ends are provided with magnetic
Steel shoe, underlying magnet steel baffle bottom are provided with baffle plate retainer ring.
Preferably, the magnet steel quantity of rotor assembly can have 4 poles, 6 poles, 8 poles, 10 poles, 12 poles etc. according to design requirement；It is fixed
Machine winding in sub-component can use the forms such as concentratred winding and Distributed Winding, and stator slot can be using 3 according to design requirement
The slot number of integral multiple, such as 9 grooves, 12 grooves, 18 grooves, 24 grooves, 36 grooves.
Preferably, the water entering section opens up fluted with outlet part outer wall, O-ring is placed with groove, it is O-shaped after assembling
Circle offsets with pump housing endophragm.The top chock outer wall also opens up fluted, and O-ring is placed with groove, after assembling O-ring with
Casing inner wall offsets.
Preferably, the outgoing line components outer end is provided with sealing gasket.
Preferably, the mechanical seal is followed successively by stationary ring from top to bottom, rotating ring, spring, rotating ring, stationary ring, stationary ring and dynamic
Ring is in mirror-image arrangement, and rotating ring is fixed with rotating shaft, and stationary ring is fixed with top chock, and the outer end of stationary ring and rotating ring contact position is provided with contracting
Mouth structure, the inner of stationary ring opposite side are provided with necking, and spring is erected on the step of two rotating rings, and the rotating ring inwall at step is set
It is fluted, the retainer ring of projection is additionally provided with step.
A kind of control method based on above-mentioned solar energy water pumping system, the control method include：
The first step：Power-up routine initializes.
Second step：The threshold voltage and electric current to be worked according to the power setting photovoltaic array of water pump system.
3rd step：The real-time voltage and electric current of photovoltaic array are detected, if real-time voltage and electric current are not up to threshold value, the sun
Energy water pump system does not work, if real-time voltage and electric current meet or exceed threshold value, solar water pump system starts.
4th step：After the work of solar energy water pumping system, the peak power output of photovoltaic array is calculated, by without work electricity
The situation of change control of pressure actual power increaseds or decreases operating voltage, if actual power and high workload under low-work voltage
The difference of actual power under voltage is less than zero, then can increase operating voltage, if actual power and senior engineer under low-work voltage
The difference for making the actual power under voltage is more than zero, then can reduce operating voltage, circulation judges repeatedly, makes solar energy water pumping system
Actual power all the time close to the peak power output of photovoltaic array.
5th step：After the completion of work, solar energy water pumping system is closed.
Preferably, the work of solar energy water pumping system has defencive function, including extraneous water level protection, cistern water level are protected
Shield, over current of motor protection, electric motor short circuit protection, control system over-temperature protection.
Preferably, system also has remote operation, remotely controlling functional.
The beneficial effects of the present invention are：1st, using rare earth permanent-magnet synchronization motor and its control system, the effect of electric system
Rate is high, obvious with the efficiency high 10 ~ 25% compared with seat No. alternating current generator, small seat No. efficiency increase；
2nd, rare earth permanent-magnet synchronization motor small volume, compared with the alternating current generator of Same Efficieney, the volume of motor can reduce 20 ~ 40%；
3rd, using rare earth permanent-magnet synchronization motor and its control system, motor may be designed to different rotating speeds, the rotating speed of alternating current generator
Typically fixed by the number of poles of motor, the synchronous rotational speed 3000rpm of 2 pole motors, the motor speed of permagnetic synchronous motor can be certain
In the range of（Such as 500rpm ~ 6000rpm）It is arbitrarily devised, the motor of higher rotation speed can be designed, it is assumed that 5000rpm, according to water pump
Similarity law, reach the lift and flow of original 3000rpm electric systems, 5000rpm electric system, water pump vane can be reduced
Quantity so can greatly reduce the volume of pump body to original 35%, while can increase production efficiency, reduce production
Cost；
4th, using rare earth permanent-magnet synchronization motor and its control system, because the efficiency of system improves, match with water pump system
The capacity of photovoltaic array can reduce, and the price of photovoltaic array is higher, can save a cost of investment；
5th, using rare earth permanent-magnet synchronization motor and its control system, due to employing solar array maximum power output in system
Control, more effectively make use of the energy of solar array, be that the operating efficiency of system improves, pump-out is bright in the same time
Aobvious increase；
6th, using rare earth permanent-magnet synchronization motor and its control system, there is multi-protective function in the system：Under-voltage protection, mistake
Current protection, motor rotation blockage protection, water level control etc., ensure that the reliability service of system, can be achieved to automatically control, intelligent fortune
Row, system monitoring and nobody see protective function.
7th, using rare earth permanent-magnet synchronization motor and its control system, in input system is exchanged, there is obvious energy-conservation to subtract
The effect of row, in the case of the flow for reaching same, power consumption substantially lowers, and the operating efficiency of system can greatly improve.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the structural representation of pump body unit in the present invention；
Fig. 3 is the structural representation of pump motor unit embodiment one in the present invention；
Fig. 4 is the structural representation of pump motor unit embodiment two in the present invention；
Fig. 5 is the structural representation of mechanical seal part in Fig. 4；
Fig. 6 is the water pump structure schematic diagram that Fig. 2 and Fig. 3 is combined；
Fig. 7 is the water pump structure schematic diagram that Fig. 2 and Fig. 4 is combined；
Fig. 8 is the structural representation of rotor assembly in the present invention；
Fig. 9 is the radial cross-section of rotor assembly embodiment one in the present invention；
Figure 10 is the radial cross-section of rotor assembly embodiment two in the present invention；
Figure 11 is the radial cross-section of stator module in the present invention；
Figure 12 is the axial sectional view of stator module in the present invention；
Figure 13 is the control system figure of the present invention；
Figure 14 is photovoltaic array illumination and power curve relationships figure in the present invention.
Embodiment
Below by embodiment and accompanying drawing, the present invention is further illustrated.
Embodiment is：As shown in figure 1, a kind of permagnetic synchronous motor solar energy water pumping system, including photovoltaic array 1, control
Device 2, water tank 2 and the water pump being made up of pump body unit 8 and pump motor unit 9 processed, between photovoltaic array 1 and controller 2
Photo-voltaic power supply line 4 is connected with, motor lead-out wire 6, water tank 2 and pump body are connected between controller 2 and pump motor unit 9
Water-supply-pipe 11 is connected between unit 8.Wherein, level sensor 10 is provided with the water where water pump and passes through water level control line 5
It is connected with controller 2, water tank 2 is provided with cistern water level sensor 3 and is connected by cistern water level control line 7 with controller 2.
With reference to shown in Fig. 2, the both ends of pump body unit 8 are respectively water entering section 8.1 and outlet part 8.7, water entering section 8.1 and are gone out
The pump case 8.6 for being enclosed on port and the pump shaft 8.8 positioned at centre are provided between water portion 8.7, water entering section 8.1 is provided with pump housing flange 8.2,
The lower end of pump shaft 8.8 is provided with shaft coupling 8.3, and some impellers 8.5 are fixed with pump shaft 8.8, and the blade of impeller 8.5 is placed in spiral case 8.4
It is interior.The upper end of pump shaft 8.8 is provided with the Upper shaft sleeve 8.9 fixed by screw 8.12, is set between Upper shaft sleeve 8.9 and outlet part 8.7
There is rubber shaft bearing 8.11, the bearing above shaft coupling 8.3 and below Upper shaft sleeve 8.9 is provided with axle sleeve 8.10.Wherein, pump case
8.6 and the link position of outlet part 8.7 be provided with alignment pin 8.13 and screw 8.12, the delivery port of outlet part 8.7 is provided with check-valves
8.14 and jump ring a8.15.In addition, water entering section 8.1 opens up fluted with the outer wall of outlet part 8.7, O-ring is placed with groove, is filled
Offseted with rear O-ring and the inwall of pump case 8.6.
The embodiment one of pump motor unit 9：With reference to shown in Fig. 3, its both ends is respectively bottom end cover 9.1 and upper end cover 9.6,
The casing 9.3 for being enclosed on port and the rotating shaft 9.11 positioned at centre are provided between bottom end cover 9.1 and upper end cover 9.6, casing is about 9.3
Sealing gasket 9.2 is provided with two-port, rotor assembly 9.5 is fixed with rotating shaft 9.11, stator pack is provided with for position in casing 9.3
Part 9.4, oil sealing 9.7 is provided between rotating shaft 9.11 and upper end cover 9.6, connecting bolt 9.8 and lead-out wire are additionally provided with upper end cover 9.6
Component 9.9.
The embodiment two of pump motor unit 9：With reference to shown in Fig. 4, including step 9.15 and top chock 9.19, under
The casing 9.3 for being enclosed on port and the rotating shaft 9.11 positioned at centre, rotating shaft are provided between bearing block 9.15 and top chock 9.19
Rotor assembly 9.5 is fixed with 9.11, stator module 9.4, rotating shaft 9.11 and top chock are provided with for position in casing 9.3
Mechanical seal 9.17 is provided between 9.19, connecting bolt 9.8 and outgoing line components 9.9 are additionally provided with top chock 9.19.Wherein,
The lower section of casing 9.3 has extension, and the lower port of casing 9.3 is set to necking, be sequentially provided with from top to bottom at necking jump ring b9.13,
Base 9.14 and oil sac 9.12.With reference to described in Fig. 5, mechanical seal 9.17 is followed successively by stationary ring 9.17.2, rotating ring from top to bottom
9.17.1, spring 9.17.3, rotating ring 9.17.1, stationary ring 9.17.2, stationary ring 9.17.2 and rotating ring 9.17.1 are in mirror-image arrangement, rotating ring
9.17.1 fixed with rotating shaft 9.11, stationary ring 9.17.2 fixes with top chock 9.19, stationary ring 9.17.2 and rotating ring 9.17.1 contacts
The outer end of position is provided with throat structure, and the inner of stationary ring 9.17.2 opposite sides is provided with necking, and spring 9.17.3 is erected at two and moved
On ring 9.17.1 step, the rotating ring 9.17.1 inwalls at step are provided with groove, and the retainer ring of projection is additionally provided with step.
In addition, the outer wall of top chock 9.19 opens up fluted, O-ring 9.16 is placed with groove, O-ring 9.16 after assembling
Offseted with casing inner wall, sealing gasket 9.2 is provided with the upper end of outgoing line components 9.9.
The water pump that can to combine to form two kinds from above two pump motor unit 9 respectively different of pump body unit 8, with reference to
Shown in Fig. 6 and Fig. 7, and built-in controller component 9.10 can be also installed inside two kinds of pump motor units 9.
With reference to shown in Figure 11 and Figure 12, stator module 9.4 includes stator core 9.4.1 and some machine winding 9.4.2, fixed
Sub- iron core 9.4.1 is fixed with casing 9.3, and stator slot 9.4.3 is provided between machine winding 9.4.2, and stator core 9.4.1 both ends are set
There is insulating end plate 9.4.4, stator module 9.4 has motor lead-out wire 6.
The embodiment one of rotor assembly 9.5：With reference to shown in Fig. 8 and Fig. 9, including the rotor core fixed with rotating shaft 9.11
9.5.1, rotor core 9.5.1 outer walls are evenly distributed with some outer slot 9.5.2, and outer slot 9.5.2 bottoms both sides are provided with enlarging
And bottom surface is curved, the magnet steel a9.5.3 to match provided with shape and outer slot 9.5.2 is inserted into outer slot 9.5.2, rotor
Iron core 9.5.1 both ends are provided with magnet steel baffle plate 9.5.4, and underlying magnet steel baffle plate 9.5.4 bottoms are provided with baffle plate retainer ring
9.5.5。
The embodiment two of rotor assembly 9.5：With reference to shown in Fig. 8 and Figure 10, including the rotor core fixed with rotating shaft 9.11
9.5.1, some interior slot 9.5.6 are offered on rotor core 9.5.1, interior slot 9.5.6 combined shapeds are in regular polygon or just
Polygon, magnet steel b9.5.7 are inserted into interior slot 9.5.6, and rotor core 9.5.1 both ends are provided with magnet steel baffle plate 9.5.4, are located at
The magnet steel baffle plate 9.5.4 bottoms of lower section are provided with baffle plate retainer ring 9.5.5.
Wherein, the magnet steel quantity of rotor assembly 9.5 can have 4 poles, 6 poles, 8 poles, 10 poles, 12 poles etc. according to design requirement；It is fixed
Machine winding 9.4.2 in sub-component 9.4 can use the forms such as concentratred winding and Distributed Winding, and stator slot 9.4.3 is according to design
It is required that can be using the slot number of 3 integral multiple, such as 9 grooves, 12 grooves, 18 grooves, 24 grooves, 36 grooves.
With reference to shown in Figure 13, a kind of control method based on above-mentioned solar energy water pumping system, the control method includes：
The first step：Power-up routine initializes.
Second step：The threshold voltage and electric current to be worked according to the power setting photovoltaic array 1 of water pump system.
3rd step：The real-time voltage and electric current of photovoltaic array 1 are detected, if real-time voltage and electric current are not up to threshold value, too
Positive energy water pump system does not work, if real-time voltage and electric current meet or exceed threshold value, solar water pump system starts.
4th step：After the work of solar energy water pumping system, the peak power output of photovoltaic array 1 is calculated, by without work
The situation of change control of actual power increaseds or decreases operating voltage under voltage, if actual power and senior engineer under low-work voltage
The difference for making the actual power under voltage is less than zero, then can increase operating voltage, if the actual power under low-work voltage and height
The difference of actual power under operating voltage is more than zero, then can reduce operating voltage, circulation judges repeatedly, makes solar water pump system
The actual power of system is all the time close to the peak power output of photovoltaic array 1.
Specifically can be as shown in figure 14, Pm is the power of maximum functional point, when system operating voltage increases to work electricity from U1
Press U2, power output is that P1 becomes and turns to P2, if P2-P1 ＞ 0, illustrates maximum functional point on the right side of real work point, can be with
Continue to increase operating voltage.If operating voltage increases to operating voltage U3 from U4, power output is that P4 changes turn to P3, if
P3-P4 ＜ 0, illustrate that maximum functional point in the left side of real work point, can be given with negative voltage difference, reduce voltage and give
It is fixed, so operate repeatedly and just reached the process that dynamic tracks peak power.
5th step：After the completion of work, solar energy water pumping system is closed.
The work of solar energy water pumping system has defencive function, including the protection of extraneous water level protection, cistern water level, motor mistake
Stream protection, electric motor short circuit protection, control system over-temperature protection.Additionally there is remote operation, remotely controlling functional.
The specific embodiment of the present invention is the foregoing is only, but the architectural feature of the present invention is not limited thereto, the present invention
It can be used on similar product, any those skilled in the art is in the field of the invention, and the change or modification made are all
Cover among the scope of the claims of the present invention.
Claims (10)
- A kind of 1. permagnetic synchronous motor solar energy water pumping system, it is characterised in that：Including photovoltaic array（1）, controller（2）, water Case（2）And by pump body unit（8）With pump motor unit（9）The water pump of composition, photovoltaic array（1）And controller（2）It Between be connected with photo-voltaic power supply line（4）, controller（2）With pump motor unit（9）Between be connected with motor lead-out wire（6）, water tank （2）With pump body unit（8）Between be connected with water-supply-pipe（11）；Level sensor is provided with water where water pump（10）And pass through water level control line（5）With controller（2）Connection, water tank （2）Provided with cistern water level sensor（3）And pass through cistern water level control line（7）With controller（2）Connection.
- A kind of 2. permagnetic synchronous motor solar energy water pumping system according to claim 1, it is characterised in that：The water pump pump Body unit（8）Both ends are respectively water entering section（8.1）And outlet part（8.7）, water entering section（8.1）And outlet part（8.7）Between be provided with It is enclosed on the pump case of port（8.6）And the pump shaft positioned at centre（8.8）, water entering section（8.1）Provided with pump housing flange（8.2）, pump shaft （8.8）Lower end is provided with shaft coupling（8.3）, pump shaft（8.8）On be fixed with some impellers（8.5）, impeller（8.5）Blade be placed in snail Shell（8.4）It is interior.
- A kind of 3. permagnetic synchronous motor solar energy water pumping system according to claim 2, it is characterised in that：The pump shaft （8.8）Upper end, which is provided with, passes through screw（8.12）Fixed Upper shaft sleeve（8.9）, Upper shaft sleeve（8.9）And outlet part（8.7）Between be provided with Rubber shaft bearing（8.11）, positioned at shaft coupling（8.3）Top and Upper shaft sleeve（8.9）The bearing of lower section is provided with axle sleeve（8.10）；The pump case（8.6）And outlet part（8.7）Link position is provided with alignment pin（8.13）And screw（8.12）, outlet part （8.7）Delivery port be provided with check-valves（8.14）And jump ring a（8.15）.
- A kind of 4. permagnetic synchronous motor solar energy water pumping system according to claim 2, it is characterised in that：The water pump electricity Machine unit（9）Both ends are respectively bottom end cover（9.1）And upper end cover（9.6）, bottom end cover（9.1）And upper end cover（9.6）Between be provided with It is enclosed on the casing of port（9.3）And the rotating shaft positioned at centre（9.11）, casing（9.3）Sealing gasket is provided with upper and lower ends mouth （9.2）, rotating shaft（9.11）On be fixed with rotor assembly（9.5）, casing（9.3）It is interior to be provided with stator module for position（9.4）, turn Axle（9.11）With upper end cover（9.6）Between be provided with oil sealing（9.7）, upper end cover（9.6）On be additionally provided with connecting bolt（9.8）And draw Line component（9.9）.
- A kind of 5. permagnetic synchronous motor solar energy water pumping system according to claim 2, it is characterised in that：The water pump electricity Machine unit（9）Including step（9.15）And top chock（9.19）, step（9.15）And top chock（9.19）It Between be provided with and be enclosed on the casing of port（9.3）And the rotating shaft positioned at centre（9.11）, rotating shaft（9.11）On be fixed with rotor assembly （9.5）, casing（9.3）It is interior to be provided with stator module for position（9.4）, rotating shaft（9.11）With top chock（9.19）Between be provided with Mechanical seal（9.17）, top chock（9.19）On be additionally provided with connecting bolt（9.8）And outgoing line components（9.9）；Casing（9.3）Lower section has extension, casing（9.3）Lower port is set to necking, and card is sequentially provided with from top to bottom at necking Spring b（9.13）, base（9.14）And oil sac（9.12）.
- A kind of 6. permagnetic synchronous motor solar energy water pumping system according to claim 4 or 5, it is characterised in that：The water Pump motor unit（9）It is interior to be provided with built-in controller component（9.10）.
- A kind of 7. permagnetic synchronous motor solar energy water pumping system according to claim 4 or 5, it is characterised in that：It is described fixed Sub-component（9.4）Including stator core（9.4.1）With some machine windings（9.4.2）, machine winding（9.4.2）Between be provided with it is fixed Pilot trench（9.4.3）, stator core（9.4.1）Both ends are provided with insulating end plate（9.4.4）；The rotor assembly（9.5）Including rotor core（9.5.1）, rotor core（9.5.1）Outer wall is evenly distributed with some outer Slot（9.5.2）, outer slot（9.5.2）Bottom both sides are provided with enlarging and bottom surface is curved, provided with shape and outer slot（9.5.2） The magnet steel a to match（9.5.3）It is inserted into outer slot（9.5.2）It is interior, rotor core（9.5.1）Both ends are provided with magnet steel baffle plate （9.5.4）, underlying magnet steel baffle plate（9.5.4）Bottom is provided with baffle plate retainer ring（9.5.5）.
- A kind of 8. permagnetic synchronous motor solar energy water pumping system according to claim 4 or 5, it is characterised in that：It is described fixed Sub-component（9.4）Including stator core（9.4.1）With some machine windings（9.4.2）, machine winding（9.4.2）Between be provided with it is fixed Pilot trench（9.4.3）, stator core（9.4.1）Both ends are provided with insulating end plate（9.4.4）；The rotor assembly（9.5）Including rotor core（9.5.1）, rotor core（9.5.1）On offer some interior slots （9.5.6）, interior slot（9.5.6）Combined shaped is in regular polygon or regular polygon, magnet steel b（9.5.7）It is inserted into interior slot （9.5.6）It is interior, rotor core（9.5.1）Both ends are provided with magnet steel baffle plate（9.5.4）, underlying magnet steel baffle plate（9.5.4）Bottom Portion is provided with baffle plate retainer ring（9.5.5）.
- 9. a kind of control method based on any of the above-described solar energy water pumping system, it is characterised in that the control method includes：The first step：Power-up routine initializes；Second step：According to the power setting photovoltaic array of water pump system（1）The threshold voltage and electric current of work；3rd step：Detect photovoltaic array（1）Real-time voltage and electric current, if real-time voltage and electric current are not up to threshold value, the sun Energy water pump system does not work, if real-time voltage and electric current meet or exceed threshold value, solar water pump system starts；4th step：After the work of solar energy water pumping system, photovoltaic array is calculated（1）Peak power output, by without work electricity The situation of change control of pressure actual power increaseds or decreases operating voltage, if actual power and high workload under low-work voltage The difference of actual power under voltage is less than zero, then can increase operating voltage, if actual power and senior engineer under low-work voltage The difference for making the actual power under voltage is more than zero, then can reduce operating voltage, circulation judges repeatedly, makes solar energy water pumping system Actual power all the time close to photovoltaic array（1）Peak power output；5th step：After the completion of work, solar energy water pumping system is closed.
- A kind of 10. control method of solar energy water pumping system according to claim 9, it is characterised in that：Solar water pump The work of system has defencive function, including the protection of extraneous water level protection, cistern water level, over current of motor protection, electric motor short circuit guarantor Shield, control system over-temperature protection.
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| CN201711091786.2A CN107630822A (en) | 2017-11-08 | 2017-11-08 | A kind of permagnetic synchronous motor solar energy water pumping system and control method |
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| CN201711091786.2A CN107630822A (en) | 2017-11-08 | 2017-11-08 | A kind of permagnetic synchronous motor solar energy water pumping system and control method |
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| CN107630822A true CN107630822A (en) | 2018-01-26 |
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Effective date of registration: 20200318 Address after: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525 Applicant after: Zhejiang Dongyin Technology Co., Ltd. Address before: On the south side of the town of Boulder Highway in Wenling city of Taizhou City, Zhejiang province 317525 Applicant before: ZHEJIANG DOYIN PUMP INDUSTRY Co.,Ltd. |