INVT Solar Pump Solution for Irrigation in India

Abstract:
 Solar Pumps are used in most of the rural areas, where electricity is not available, Farmers and customers sometimes have to rely on alternate sources such as solar power for irrigation and drinking water, which is the reliable source of energy. Solar pumps system uses the generated power from PV and converts it to drive the pumps to lift the water for usages. The solar pump system includes photovoltaic panel, electronic device (Solar drive) and AC motor/PM motor, whereas an electronic device is a combination of Controller, MPPT, and VFD.

1. Introduction

* GD100-PV DRIVE:
a) The controller can automatically start only after connected to solar panel without any parameter setting ,it has automatically start function.
b) It can control single phase and 3 phase Single phase Asynchronous ,PM motor / BLDC
c) It support GPRS, booster module
d) MPPT efficiency is 99.9% and drive efficiency is 96%.

* SOLAR PANEL SELECTION:
It depends on motor and drive power 

Voltage add in series connection & current remains constant 

Voltage remains constant in parallel connection and current add
Recommended Voltage Vmpp 550VDC(for 3 phase drive/330VDC for single phase)
Power: 1.2 times of inverter rated power
PCS/String FR=550V/panel Vmpp

We should know the following details of solar panel for calculation of number of panel required in system:
    a) Voc=open circuit voltage
    b) Vmp= voltage at maximum power
    c) Isc = short circuit current
    d) Imp = current at maximum power
    e) Pmax= maximum power
As per the above calculation we knew the numbers of panel required and connected in series ,at the end of connection we have two wire one is PV+ and PV- that can be connected to drive by + and – terminal through fuse/dc breaker then SPD for protection,as soon as we connected the drive to solar panel drive start running with default parameter because it has automatically start function then we pressed rst/stop button & set parameter as per motor type and rating
2. Project information and Solution
* Project information
Site information: Irrigation/Agriculture/Drinking water

 * INVT Solution

3. System commissioning

* FUNCTION CODES:
P00.00 = control mode, P00.03= max output frequency, P00.04= upper limit of frequency,P00.10 = keypad frequency, P00.11 = acc,P00.12 =dacc, P00.18= 1 (default the parameter),P00.15 =1/2(auto tuning) P02.00 = type of motor
P02.01 P02.15 P02.20,P02.02 ,P02.16 ,P02.21,P02.03, P02.17, P02.22
P02.04 P02.18 P02.23,P02.05, P02.19

* Above functions code for motor parameter
P05.01, P05.02……… are for digital input configuration
P15.00 = Enable the solar parameter
P15.01 = Enable MPPT
P15.02 = Vmp
P15.33 = weak radiation voltage
P15.37 = Under Voltage

4. Advantages and benefits

1) Advanced MPPT algorithms
2) Broadest voltage and power range
3) Easy to use
4) Multiple protective measures: A-LL, A-LS...
5) Work in low voltage: booster module
6) Auto switch between solar and grid input
7) Remote monitor
8) Multiple motor control

Solar pumping market is growing now a days in india, INVT has so many installation  references and success case to tackle these market and the performance is as good as solar pump segment. Right now we have almost 45% market share in india.