Inverter efficiency - Revision history

KKoPV: /* Channel tree */

2014-03-16T17:29:40Z

‎Channel tree

KKoPV at 15:55, 10 March 2014

2014-03-10T15:55:53Z

KKoPV at 15:42, 10 March 2014

2014-03-10T15:42:54Z

KKoPV at 15:37, 10 March 2014

2014-03-10T15:37:33Z

KKoPV: /* Charting hint */

2014-02-28T11:23:47Z

‎Charting hint

KKoPV: /* Setup */

2014-02-28T11:23:08Z

‎Setup

KKoPV: /* Charting hint */

2014-02-28T11:20:50Z

‎Charting hint

KKoPV: /* Channel tree */

2014-02-28T10:02:13Z

‎Channel tree

KKoPV: /* Setup */

2014-02-28T10:01:55Z

‎Setup

KKoPV at 09:41, 28 February 2014

2014-02-28T09:41:03Z

@@ Line 24: / Line 24: @@
 If your inverter have more than one MPP tracker (as mine), you need also another special group to sum all P<sub>DC*</sub> up.
-This will be done by an [[Accumulator]] as described [[Accumulator example|here]].
+This will be done by an [[Grouping models#Accumulator|Accumulator]] as described [[Accumulator example|here]].
 Please mind the correct order of child channels as described above:

@@ Line 1: / Line 1: @@
 {{TOCright}}
-<blockquote>By efficiency, we are really saying, what percentage of the power that goes into the inverter comes out as usable AC current (nothing is ever 100% efficient, there will always be some losses in the system). This efficiency figure will vary according to how much power is being used at the time, with the efficiency generally being greater when more power is used. -- [http://www.solar-facts.com/inverters/inverter-efficiency.php Solar-facts.com]</blockquote>
+<blockquote>By efficiency, we are really saying, what percentage of the power that goes into the inverter comes out as usable AC current (nothing is ever 100% efficient, there will always be some losses in the system). This efficiency figure will vary according to how much power is being used at the time, with the efficiency generally being greater when more power is used. <cite>[http://www.solar-facts.com/inverters/inverter-efficiency.php Solar-facts.com]</cite></blockquote>
 The Inverter efficiency is calculated by: [[File:EfficiencyCalulation.png]]
@@ Line 7: / Line 7: @@
 For this we need the special grouping channel type: [[Grouping_models#Ratio|Ratio]]
 [[File:RatioCalculatorChannel.png]]
 * The Ratio calculator would return in the required channel combination values between <tt>0..1</tt><br />To get readout values as percentage (<tt>0..100</tt>), set factor to <tt>100</tt>.
@@ Line 25: / Line 27: @@
 Please mind the correct order of child channels as described above:
 [[File:RatioCalculatorTree.png]]
@@ Line 31: / Line 34: @@
 If you want to have a more detailed result for efficiency, set the valid from attribute for example to <tt>90</tt>.
 [[File:PRChart90.png]]
 All values below 90% are "raised" to 90%.
 The efficiency (black dashed) is mostly above 96%. This shown by a [[fix]]ed channel to get a feeling how the inverter performs:
 [[File:Fix96.png]]
 [[Category:Example]]

@@ Line 1: / Line 1: @@
 {{TOCright}}
-<blockquote>By efficiency, we are really saying, what percentage of the power that goes into the inverter comes out as usable AC current (nothing is ever 100% efficient, there will always be some losses in the system).<br />
+<blockquote>By efficiency, we are really saying, what percentage of the power that goes into the inverter comes out as usable AC current (nothing is ever 100% efficient, there will always be some losses in the system). This efficiency figure will vary according to how much power is being used at the time, with the efficiency generally being greater when more power is used. -- [http://www.solar-facts.com/inverters/inverter-efficiency.php Solar-facts.com]</blockquote>
 The Inverter efficiency is calculated by: [[File:EfficiencyCalulation.png]]

@@ Line 1: / Line 1: @@
-== Abstract ==
+{{TOCright}}
 <blockquote>By efficiency, we are really saying, what percentage of the power that goes into the inverter comes out as usable AC current (nothing is ever 100% efficient, there will always be some losses in the system).<br />
 This efficiency figure will vary according to how much power is being used at the time, with the efficiency generally being greater when more power is used. -- [http://www.solar-facts.com/inverters/inverter-efficiency.php Solar-facts.com]</blockquote>
@@ Line 8: / Line 7: @@
 == Setup ==
-For this we need the special grouping channel type: [[Ratio]]
+For this we need the special grouping channel type: [[Grouping_models#Ratio|Ratio]]
 [[File:RatioCalculatorChannel.png]]

@@ Line 38: / Line 38: @@
 All values below 90% are "raised" to 90%.
-The efficiency (black dashed) is mostly above 96%. This shown by a [[fix]]ed channel to get a feeling how the inverter peforms:
+The efficiency (black dashed) is mostly above 96%. This shown by a [[fix]]ed channel to get a feeling how the inverter performs:
 [[File:Fix96.png]]
 [[Category:Example]]

@@ Line 13: / Line 13: @@
 * The Ratio calculator would return in the required channel combination values between <tt>0..1</tt><br />To get readout values as percentage (<tt>0..100</tt>), set factor to <tt>100</tt>.
-* The [[channel attributes#valid|valid range]] <tt>0..100</tt> avoid values values over 100%, which is possible by inaccurate readings.
+* The [[channel attributes#valid|valid range]] <tt>0..100</tt> avoid values values over 100%, which is here naturally impossible but can result from inaccurate readings.
 So the result will be aligned into the range.

@@ Line 32: / Line 32: @@
 == Charting hint ==
-If you want to have a more detailed result for efficiency, set the valid from attribute for example to '''95''':
+If you want to have a more detailed result for efficiency, set the valid from attribute for example to <tt>90</tt>.
-[[File:AccumulatorChannelChart95.png]]
+[[File:PRChart90.png]]
-Here you can see, that the efficiency (black dashed) is after noon about 97%!
+All values below 90% are "raised" to 90%.
-All values below 95% are "raised" to 95%, so just ignore them until 8:00...
+The efficiency (black dashed) is mostly above 96%. This shown by a [[fix]]ed channel to get a feeling how the inverter peforms:
 [[Category:Example]]

← Older revision		Revision as of 10:02, 28 February 2014
Line 21:		Line 21:

	== Channel tree ==		== Channel tree ==
		+
		+	If your inverter have more than one MPP tracker (as mine), you need also another special group to sum all P<sub>DC*</sub> up.
		+
		+	This will be done by an [[Accumulator]] as described [[Accumulator example\|here]].

	Please mind the correct order of child channels as described above:		Please mind the correct order of child channels as described above:

@@ Line 19: / Line 19: @@
 '''''Please note:'''''
 *The performance ratio model accepts only exact 2 sub channels for correct operation!
 == Channel tree ==

← Older revision		Revision as of 09:41, 28 February 2014
Line 29:		Line 29:

	[[File:RatioCalculatorTree.png]]		[[File:RatioCalculatorTree.png]]
		+
		+	== Charting hint ==
		+
		+	If you want to have a more detailed result for efficiency, set the valid from attribute for example to '''95''':
		+
		+	[[File:AccumulatorChannelChart95.png]]
		+
		+	Here you can see, that the efficiency (black dashed) is after noon about 97%!
		+
		+	All values below 95% are "raised" to 95%, so just ignore them until 8:00...

	[[Category:Example]]		[[Category:Example]]