Active Member
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[China]
Address: Room 617, Guanlida Building, NO. 269 of Qianjin Road, Wenhui community, Xin'an street
Contact name:Frank
Shenzhen zk electric technology limited company |
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The solar pump inverter operates in dual supply mode either with a three phase input supply from the grid or with DC input supply from PV cells.
A four-pole changeover switch enables switching between the two supply modes. At a given time only one power supply (PV cell or grid) can be connected to the drive.
The DC and AC also can connected to inverter at the same time
(Hybrid input)
Solar Pumping System overview
Solar pumping systems can be applied to all forms of daily use,
water pumping for drinking water supply for remote villages and
farms without connection to the water grid, for agricultural use
such as livestock watering, agricultural irrigation, forestry
irrigation, pond management, desert control, and industrial use
such as waste water treatment etc.
The PV generator, an aggregation of PV modules connected in series
and in parallel, absorbs solar irradiation and converts it into
electrical energy, providing power for the whole system. The pump
drive controls and adjusts the system operation and converts the DC
produced by the PV module into AC to drive the pump, and adjusts
the output frequency in real-time according to the variation of
sunlight intensity to realize the maximum power point tracking
(MPPT). The pump, driven by 3-phase AC motor, can draw water from
deep wells, rivers and lakes and pour it into storage tanks or
reservoirs, or be connected directly to the irrigation system,
fountain system, etc. According to the actual system demand and
installation condition, different types of pumps such as
centrifugal pump, axial flow pump, mixed flow pump or deep well
pump can be used.
Solar pump system constitution.
Providing clean, environmentally safe water for livestock in sufficient quantities continues to be a major concern for farmers and ranchers. Abundant water in remote locations in needed to insure that grasslands are grazed evenly.
Solar pump Inverter has following advantages:
SG200 380V 0.75kw to 5.5kw solar pupm inverter features
Several advantages of SG300/320 solar pump inverter
SG200 solar Pump inverter specification.
| **solar pump inverter specification when FA-00 set to 1&2 for solar pumping controlling function. | |
| Recommended MPPT voltage range | DC for 2S ( 150V to 350VDC input, 3PH 220 to 240VAC output) Vmp 486 to 650 VDC for 4T ( 250V to 800VDC input, 3PH 380 to 460VAC output) |
| Recommended input | VOC 648(VDC), Vmpp 540(VDC) for 4T model or 380V AC pumps |
| Motor type | Control for permanent magnet synchronous motor and asynchronous motor pumps. 1 phase or 3 phase 220VAC pumps. |
| Rated output voltage | 3-Phase,110V/160V/220V. 3-phase, 220V/380V/460V |
| Output frequency range | 0~maximum frequency 600Hz. Resolution 0.01 Hz |
| MPPT efficiency | 99.7%, more efficiency if use to drive PMSM pumps |
| Ambient temperature range | G-type for submersible pumps, 150% rated current for 60s, 180% rated current for 2s . P type for general pumps, 120% rated current for 60s, 150% rated current for 2s |
| Solar pump control special performance | MPPT ( maximum power point tracking), CVT (constant voltage tracking), auto/manual operation, dry run protection, low stop frequency protection, minimum power input, motor maximum current protection, flow calculating, energy generated calculating and water tank level detected |
| Protection function | Phase loss protection, phase short circuit protection, ground to phase circuit protection , input and output short circuit protection. Stall protection, lightning protection |
| Protection degree | IP20, Air force cooling |
| Running mode | MPPT or CVT |
| Altitude | Below 1000m; above 1000m, derated 1% for every additional 100m. |
Standard AC input backup circuit | CE, Design based on vector control drive S300 and S3200 series, more specification please refer to S300 or S320 vector control drive operation manual |
| Auto stop and auto restart | Control by external switch, float switch, Rs485 communication. It will auto start at morning when get enough power from sunlight, and stop at sunset when power is less from solar panel under terminals control mode |
| Technical specification when it used for speed and torque controlling of motor as FA-00 set to 0. | |
| voltage, frequency | Single phase 220V, 3 phase, 220V,380V, 660V and 1140V. Input Power 0.75kw to 37kw. |
| Control mode | 0: VF control ; 1: Vectorized VF control ; 2:Open loop vector control 1 ; 3: High performance open loop vector control 2 |
| Maximum frequency | 0-650Hz |
| Multiple-functions | PID Control, Carrier Frequency Adjustable, Current Limiter, Speed Search, Momentary Power Loss Restart,16 Step Speed (Max), 3-Wire connection, Slip Compensation, Frequency Jump, DC braking, Upper/Lower Frequency, Torque control, Compatible for PMSM and IM, built in RS485, counting, fault information checking, fully fault protection function, frequency combination reference. |
Solar panels configuraton
Input voltage, total power solar arrays selection.
| Input voltage, power solar arrays selection | ||||
| Pumps model | Inverte models | Vmp | Voc | Total Power of solar arrays |
| 110VAC pumps | 1S | 110*1.41=130VDC | 156VDC | ≧ (1.3 to 2.0) rated power of pumps It is also depend on the quality of solar panels. The more power input, the better performance. |
| 220VAC pumps | 2S | 220*1.41=310VDC | 372VDC | |
| 380VAC pumps | 4T (Max 800VDC) | 380*1.41=540VDC | 648VDC | |
| 480VAC pumps | 4T ( Max 900VDC) | 480*1.41=677VDC | 812VDC | |
Solar arrays selection table for inverter and pumps.
Take solar panels Voc38VDC, Vmp 31VDC, 265W.
Please check if enough DC voltage for system, Voc and Vmp. If the
input is correct, the inverter will not work properly. If the
output frequency is not high, lower than 50/60Hz even in good
sunlight radiation, please check if enough solar panels have been
connected. The total power should be at least bigger 1.3 times than
of rated power of pumps.
| 265w, 38Voc (Open circuit voltage), 31Vmp ( Voltage at Pmax) | ||||
| Inverter models | Power of pump | Connection in series (PCS) (Vmp) | Connect in parallel ( Strings) Power | Total (PCS) |
| 1S (110VAC) | 0.75kw to 1.0kw | 4 or 5 PCS | 1* strings | 5*1=5 |
| 2S (220VAC) | 0.75kw to 1.5kw | 10PCS | 1* strings | 10*1=10 |
| 2S (220VAC), Max 450vdc | 2.2kw | 11PCS | 1* strings | 11*1=11 |
| 4T(380VAC) | 0.75kw to 2.2kw | 18PCS | 1* strings | 18*1=18 |
4T(380VAC) Max 900VDC | 3.7kw | 20PCS | 1* strings | 20*1=20 |
| 4T(380VAC) | 5.5kw | 18PCS | 2* strings | 18*2=36 |
4T(380VAC) Max 900VDC | 7.5kw | 20pcs | 2* strings | 20*2=40 |
| 4T(380VAC) | 11kw | 18pcs | 3* strings | 18*3=54 |
4T(380VAC) Max900VDC | 15kw | 20pcs | 4* strings | 20*4=80 |
