|
DST's MPR series controllers are
by far the most sophisticated and versatile PV controllers on the
market.
The MPR series PV controllers have been on the market since 1994 with
over 1000 units in service. The MPR controllers have proven to be
not only configurable to specific customers specification but most
important to lengthen battery life with our exclusive charge algorithms
coupled with reliability!
The MPR series of Photovoltaic/hybrid controller are the absolute
best controllers for telecommunication, residential, or hybrid systems
needing advanced function capabilities. The MPR series unique features
include the capacity to verify, obtain data-logger information,
manually operate the controls, adjust set-points, control multiple
channels and also perform these tasks via your personal computer/modem
telephone.
 The
basic (see custom Controllers) MPR-9400 and MPR-9800 are for use
in PV/hybrid applications with PV inputs from 30A to 200A and generator/rectifier
inputs up to 200A. The MPR-9400 is designed for advanced PV/hybrid
system where multiple Inputs and Output are required. All of MPR-9400's,
MPR-9800's and MPR-9900's software include DST's proprietary charge
algorithms, EBBM™, which ensure complete and safe charging
of any battery technology. This charge algorithm technology has
proven in a two year test that the battery cycle life increases!
The MPR-9400 is available with many versions of control software
which will accomplish any complex task your customer requires. Please
contact DST with any request of customer software.
Please select the following controller and topics of interest.
DST controllers are manufactured to all governing national electrical
codes and will be listed with major laboratories in the near future.
With all listed products and their manufacturer, DST's manufacturing
facilities will be certified by these independent groups, with on
going inspections conducted by their personnel. This guarantees
that DST meets all standards.
Once again, with the foundation of our microcomputer, we have easily
developed a true data logging option. This option is as powerful
as other available datalogger products but at a fraction of the
cost.
The data logging options allows the user to completely analyze the
systems performance, battery condition and functionality of their
PV system. After down loading the datalogging file, either locally
or remotely, you can import this file into MS Excel and produce
the needed graphs. These graphs will visually allow you to easily
analyze the performance of the system.
With the logging of maximum and minimum daily battery voltages,
solar resources, battery maximum and minimum temperatures, battery
amp hours in and out, plus many other parameters, the customer can
examine the systems battery condition without being overwhelmed
with data.
The MPR-9400 DAS option is available with 1 MB of additional RAM
to accomplish the DAS.
Using 1 MB of RAM with once a day logging, the MPR-9400 can log
over 1 year of data. Using 1 MB of RAM, the MPR can log actual 15
minute averages of parameters and log over 10 months of data. (much
longer if the sampling time is changed, programmed by user)
Some of the parameters logged-
This list is the minimum parameters logged and will vary depending
on the PROM version installed in your MPR controller.
- Daily solar irradiance
- Min/max battery temperatures
- Min/max ambient temperatures
- Min/max battery voltage
- Min/max battery current
- Max PV current
- AH of Load
- AH of PV
- AH of auxiliary charge
- Alarms active
Charging the batteries is accomplished with the combination of our
EBBM™ algorithm (see "Charge Algorithm") and series
regulation method using finish pulse charging. In the near future
DST will offer a true LOW NOISE PWM finish charging design. These
controllers will incorporate MDR's on 1 or 2 sub arrays with MOSFET
technology for the final finish PWM charge. With the MPR-9400 capable
of using PWM in conjunction with our EBBM algorithm, it will be
by far the most efficient method of fully charging batteries in
a PV/hybrid system. At this time, no other controller manufacturer
has the capability to accomplish this charging method!
The MPR-9400 and MPR-2001 can be configured from 1 to 6 sub-arrays
inputs, each individually controlled with their respective set points,
with the combination of a Wind and/or 1 or 2 generator/rectifier
inputs. (see "Generator Control") These additional power
inputs are monitored and metered so that the Amperage and Amp hour
inputs are used in the battery's State of Charge calculations. All
PV inputs are provided with UL listed to 125 volt DC
The MPR's accomplishes the bulk absorption charge by initially uses
all the sub arrays to bring the battery up to the High Voltage Disconnects-
HVD2 and HVD1 set points. At this point the MPR-9400 will shed sub
arrays and accomplish the pulse finish charging of the batteries.
The MPR's accomplishes the needed equalization required by battery
manufacturers. These equalization methods are programmed by the
user depending on battery type. The MPR will sustain the required
higher voltage for the needed amount of time to truly equalize batteries.
This equalization can be performed manually or programmed by the
user to automatically equalize as a function of days or as a function
of Depth Of Discharge (or # of DOD's). The equalization can also
be manually initiated either locally or remotely!
|
