Configuring a Mastervolt Windmaster 500

Renewable energies except solar electric or thermal (seeforums dedicated below): wind turbines, energy from the sea, hydraulic and hydroelectricity, biomass, biogas, deep geothermal energy ...
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22

Configuring a Mastervolt Windmaster 500




by Ruthenian » 03/05/12, 07:18

Hello,
Do you think we can set this GTI in solar operation on panels of 24 V with Umpp of 36 V and a Uoc of 43.58 V DC?

Is it better to retranscribe the Impp / Vmpp curve?

Image
0 x
User avatar
plasmanu
Econologue expert
Econologue expert
posts: 2847
Registration: 21/11/04, 06:05
Location: The 07170 Lavilledieu viaduct
x 180




by plasmanu » 03/05/12, 08:41

The goal is to divide by 2 the voltage.
A 220v ---> 110v transformer.
Or a 12v ---> 24v converter backwards.

Some regulators have to do this natively.
0 x
"Not to see Evil, not to hear Evil, not to speak Evil" 3 little monkeys Mizaru
dedeleco
Econologue expert
Econologue expert
posts: 9211
Registration: 16/01/10, 01:19
x 10




by dedeleco » 03/05/12, 12:41

The information on Mastervolt's Windmaster 500 is missing, just read carefully:

http://www.solar-kit.com/WebRoot/StoreL ... 25ENFR.pdf


Full voltage range
power
65-125 VCC

Starting power 1 W

Max Input Voltage 150 V
Max Input Intensity 8 A
Power input name 550 Wcc
Safety Short circuit max 12 A

Power Curve
The Windmaster 500 converts DC power
from a wind turbine to the AC grid. This conversion
is based on a linear curve with a voltage
starting and operating voltage
maximum (see 1 scheme). These parameters
can be adjusted and optimized by the supplier
the system for use with a wind turbine
in particular. When the DC voltage reaches the
threshold voltage to start the Windmaster, this one
starts a countdown of 5 seconds before
to supply energy to the network
.

CC interface
The CC interface is here to protect the Windmaster
500, and should provide the following:
• Protection against voltage spikes;
• Surge protection, max
150VCC (*);
• Disconnect switch (if applicable).
(*) Mechanical or electrical protection against
overvoltages can be integrated into the wind turbine.


Mastervolt can not be held responsible
for:
Possible errors in this manual
and their consequences




Since the voltage range of the full-power GTI starts at 65V, with the max solar panels of power at about 25V to 30V there is no compatibility for panels of power greater than half the 500W, ie max 250W for have 65W / 2 = 32,5V, very much about.

The linear curve of PDC versus VDC, is adjustable with the max of 120V reducible to 65V at best.

So the Mastervolt Windmaster 500 will only work halfway with this solar panel.

Less than doubling the voltage with serial connection from 2 to 4 to double the voltages at least.

This Windmaster 500 from Mastervolt is designed for wind turbines with this characteristic of linear voltage and power, which is never linear for a real wind turbine but cubic (Betz) with saturation.

Image

The information on the instructions of Mastervolt Windmaster 500 are a little thin but much more than for other brands.
0 x
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22




by Ruthenian » 03/05/12, 21:39

You can configure it either in linear or cubic curve betz ...
There are four adjustment points.
It should pass.
I measured today Vmpp to 36 V DC. thin under a cloud.
I can pass my config to 72 V of PV, so nickel.
For the curve, what do you recommend me?
0 x
dedeleco
Econologue expert
Econologue expert
posts: 9211
Registration: 16/01/10, 01:19
x 10




by dedeleco » 04/05/12, 00:40

For the curve, what do you recommend me?

It is necessary in principle to choose close to the actual curve of the panels P (U), to be drawn, which has nothing to do with a wind turbine with I (proportional to the light) almost independent of V = U up to U max, to see the photoelectric effect curves.

Image

UImax decreases with luminous intensity.

P (U) is thus close to a slope line proportional to the solar light flux, up to a little before Umax, to decrease abruptly very quickly to zero, to Umax at I = 0.

This is not at all like the Windmaster 500, which does not descend and has a fixed slope regardless of wind or light.

It should look for Pmax whatever V is empty by increasing the current to P max, and measure the P (U) curve automatically in the learning phase.

Is UDC UDC empty with Preel = 0 or PDC UDC chosen?
This curve is too vague in its definition.

But the program is likely to be very different for wind turbine U = Uvide-RI and Uvide decreasing with I by braking the wind turbine and solar panels with I fixed according to U up to U max.


It is possible to try the low U slope straight possible at u max panels.

It lacks a lot of specific information.
0 x
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22




by Ruthenian » 08/05/12, 01:50

Ayé, tests done. Finger in the noise. I configure it either in wind or solar. By cons their soft, hye! in 2012 do not know how to communicate an app with RS232 it sucks a max.
Hey ded, the theory has nothing to do with practice !!!
0 x
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22




by Ruthenian » 08/05/12, 15:00

A life size, I changed a little the parameters of the curve because it was difficult to start now it works on panels.

It's amazing the difference with the other GTIs. This one does not make a single noise. We do not wait for the dizziness.

For those who consume 60- 70 Watts empty. You have an idea where this might come from. It's weird.
0 x
User avatar
Forhorse
Econologue expert
Econologue expert
posts: 2485
Registration: 27/10/09, 08:19
Location: Perche Ornais
x 359




by Forhorse » 08/05/12, 15:41

Which one consumes 60W has empty?
0 x
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22




by Ruthenian » 08/05/12, 18:38

It's this one:

Image
0 x
Ruthenian
Éconologue good!
Éconologue good!
posts: 318
Registration: 02/11/05, 15:22




by Ruthenian » 09/05/12, 19:26

Ayé, I think I found: Too strong !!!!

Image


Image
0 x

 


  • Similar topics
    Replies
    views
    Last message

Back to "hydraulic, wind, geothermal, marine energy, biogas ..."

Who is online ?

Users browsing this forum : No registered users and 256 guests