Solar pump Application vacon • 4
Service support: find your nearest Vacon service center at www.vacon.com
2
2.
S
OLAR
PUMP
A
PPLICATION
The VACON
®
20 CP/X drive contains a preloaded application for instant use.
The parameters of this application are listed in chapter 3.3 of this manual and explained in
more detail in chapter 4.
2.1
Specific functions of Vacon Solar pump application
The Vacon Solar Pump allows flexible use of VACON
®
20 CP/X frequency converters. This ded-
icated application SW was developed to drive a Solar Pump with an optimized MPPT (Maximum
Power Point Tracking) for 20X supplied by Solar Panels.
The MPPT is based on 4 parallel algorithms:
•
Feed-Forward Controller (to follow the radiation variations)
•
Correction Controller (to compensate the temperature variations)
•
Oscillation Damping Regulator (to prevent the panel entering in the “current source”
branch of the characteristic)
•
Local Maxima logic (to prevent the regulator from being trapped in a local maximum
lower than absolute maximum)
Features
The MPP Tracker controls DC voltage reference in order to find the maximum power.
The drive can be controlled through I/O terminals, a fieldbus or the optional keypad.Two pro-
grammable control places and sources for the frequency reference are available, for easy lo-
cal/remote control.
Frequency reference can be direct (analogue input, preset speeds or fieldbus) or controlled by
the internal PID regulator.
All the functionalities can be controlled through a fieldbus.
The motor identification function allows automatic optimization of the voltage/frequency curve,
for a optimal torque response also at low motor speed.
It is possible to install one optional board for I/O expansion.
Underload protection can be managed by measuring Motor torque (standard sensorless mode)
or by measuring the water flow with a flow meter sensor. This sensor can be an analogue sig-
nal or a digital input. With this sensor it is possible to measure the water flow [litres/min] and
the total volume of the water flow [m
3
].
Sleep mode can be enabled or disabled with a parameter.
Digital inputs can be used to measure water levels (minimum and maximum).
Содержание 20 CP/X
Страница 1: ...vacon 20 cp x ac drives Solar pump application manual ...
Страница 2: ......
Страница 4: ...vacon 1 5 Fault tracing 82 ...
Страница 6: ...1 vacon 3 Safety ...
Страница 16: ...vacon 13 Solar pump Application 2 ...
Страница 90: ......
Страница 91: ......