Reduction Of Converter Type Performance Via Network Load Optimization - AEG Thyro-Power Manager Operation Manual

Functional Description
7.2.3 Reduction
Optimization
If strongly-changing load resistance and heating elements are deployed, e.g. with a large
Rwarm Rold
or
Rcold Rnew
transformer under the use of the zero cross principle, the implementation of the Thyro Power
Manager can reduce and optimize the type performance of this transformer.
The circuit diagram is displayed in the following figure:
Figure 21: Input Transformer and Network Load Optimization
Requirement:
If the power controllers (controllers) operate with a subordinately embedded power
controlling, the maximum transformer type power can roughly be computed as follows,
assuming they operate with phase-angle firing (VAR) and full frequency package control
(TAKT) at equally set start-up times Ts:
R max
P = P * n *
Tr Load
R min
Under the deployment of full frequency package control (TAKT), network load optimization
enables time cascading of the start-up time Ts for each single power controller with the help
of the Thyro Power Manager. The transformer type power is then determined using:
R
P = P * n *
Tr Load
R
Conditions:
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Figure 20: Manual Time Allocation
of Converter
ratio, and a group of power controllers are deployed to an input
P = P = P = P
Load 1 2 n-1
max
min
Operations Manual Thyro Power Manager
Type Performance
= P = constant
n
P = Power of transformer
Tr
P = Power of a load
Load
n = Number of loads or power
controllers
R = Highest resistance value
max
R = Lowest resistance value
min
via Network Load
Version 2008-03-11