Dear Ray,

Again I have a problem with a wind profile values. Before I started simulation
and everythng was ok.

Now I changed my wind profile with the same power and again it started to
dispatch my wind. Even I've set very high reserve quantity about 1000000 and 
zero
prices. How to stop it? I have the power of the wind 250 MW and the following
profile:

[

0.378 0.445 0.512;

0.427 0.502 0.577;

0.463 0.545 0.627;

0.493 0.580 0.667;

0.561 0.660 0.759;

0.537 0.632 0.727;

0.561 0.660 0.759;

0.583 0.686 0.789;

0.610 0.718 0.826;

0.645 0.759 0.873;

0.695 0.818 0.941;

0.754 0.887 1.020;

0.810 0.953 1.096;

0.823 0.968 1.113;

0.787 0.926 1.065;

0.734 0.864 0.994;

0.681 0.801 0.921;

0.609 0.716 0.823;

0.554 0.652 0.750;

0.512 0.602 0.692;

0.343 0.404 0.465;

0.188 0.221 0.254;

0.251 0.295 0.339;

0.451 0.531 0.611;

];


And for the Restrict ramping and add ramp reserve costs I've got the following
result:

========== PG ==========

Gen t = 1 t = 2 t = 3 t = 4 t = 5 t = 6 t = 7 t = 8 t = 9 t =10 t =11 t =12 t 
=13
t =14 t =15 t =16 t =17 t =18 t =19 t =20 t =21 t =22 t =23 t =24

---- ------- ------- ------- ------- ------- ------- ------- ------- -------
------- ------- ------- ------- ------- ------- ------- ------- ------- -------
------- ------- ------- ------- -------

1 346.50 322.25 312.75 312.75 294.75 294.75 258.75 192.25 192.25 186.00 186.00
186.00 186.00 186.00 186.00 186.00 190.75 203.00 228.00 300.50 351.50 397.25
397.25 328.25

2 223.25 223.25 223.25 223.25 223.25 223.25 223.25 223.25 200.25 200.25 189.50
180.00 180.00 180.00 180.00 180.00 180.00 180.00 180.00 180.00 210.50 210.50
180.00 180.00

3 - - - - - - - - - - - - - - - - - - - - - - - -

4 -681.00 -671.00 -666.00 -681.00 -681.00 -676.00 -647.00 -587.00 -572.00 
-576.00
-580.00 -574.00 -576.00 -572.00 -578.00 -569.00 -571.00 -562.00 -571.00 -631.00
-663.00 -663.00 -651.00 -641.00

5 111.25 125.50 130.00 145.00 163.00 158.00 165.00 171.50 179.50 189.75 204.50
208.00 210.00 206.00 212.00 203.00 200.25 179.00 163.00 150.50 101.00 55.25 
73.75
132.75


Wind profile is changing. With a storage it's ok:

========== PG ==========

Gen t = 1 t = 2 t = 3 t = 4 t = 5 t = 6 t = 7 t = 8 t = 9 t =10 t =11 t =12 t 
=13
t =14 t =15 t =16 t =17 t =18 t =19 t =20 t =21 t =22 t =23 t =24

---- ------- ------- ------- ------- ------- ------- ------- ------- -------
------- ------- ------- ------- ------- ------- ------- ------- ------- -------
------- ------- ------- ------- -------

1 450.75 450.75 450.75 450.75 445.00 445.00 410.00 386.70 363.70 360.53 360.53
360.53 360.53 360.53 360.53 360.53 360.53 360.53 379.20 451.70 459.25 465.00
465.00 436.00

2 - - - - - - - - - - - - - - - - - - - - - - - -

3 72.00 72.00 72.00 72.00 72.00 72.00 72.00 28.80 28.80 28.80 28.80 28.80 28.80
28.80 28.80 28.80 28.80 28.80 28.80 28.80 62.75 62.75 62.75 62.75

4 -681.00 -671.00 -666.00 -681.00 -681.00 -676.00 -647.00 -587.00 -572.00 
-576.00
-580.00 -574.00 -576.00 -572.00 -578.00 -569.00 -571.00 -562.00 -571.00 -631.00
-663.00 -663.00 -651.00 -641.00

5 111.25 125.50 136.25 145.00 165.00 158.00 165.00 171.50 179.50 189.75 204.50
221.75 238.25 242.00 231.50 216.00 200.25 179.00 163.00 150.50 101.00 55.25 
73.75
132.75

6 47.00 22.75 7.00 13.25 -1.00 1.00 - - - -3.08 -13.83 -37.08 -51.58 -59.33
-42.83 -36.33 -18.58 -6.33 -0.00 -0.00 40.00 80.00 49.50 9.50


But I've noticed one thing. In a wind profile we have 3 variants for the
stochastic case. But in my case only the second column should be used:

wp = ex_wind_profile;

windprofile.values(:, :, 1) = mean(wp.values, 2);

But it seems that for some periods the program used the values from the second
columns. Because I changed

the value in the first column to make an experiment and the value of the wind in
the result changed. What do you think about it?

Another question, why the program is doing double calculation and I have the
double result which is different?


--

Vlad .

Reply via email to