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鏈�鏂拌祫鏂欐帹鑽?/p>
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澶嶆暟鍩熷姞鏉冩渶灏忎簩涔樻硶鍦ㄥ熀浜庣浉閲忛噺娴嬬殑鐘舵�佷及璁?
涓殑搴?/p>
...
澶嶆暟鍩熷姞鏉冩渶灏忎簩涔樻硶鍦ㄥ熀浜庣浉閲忛噺娴嬬殑鐘舵�佷及璁′腑鐨勫簲鐢?/p>
Application of complex field weighted least square algorithm
in
state
estimation
based
on
phasor
measurement ABSTRACT
锛?/p>
State estimation based on phasor measurement can improve
the accuracy of state. The widely placed phase measurement
uints(PMU)in
high-voltage
network
provide
a
substantial
foundation
for state
estimation
only using
PMU.Studying
state
estimation
only
using
PMU
is
great
significance.
A
measurement
equation in complex domain is established, and the complex
field weighted least square algorithm(CWLS), which needs no
iteration
to
achieve
estimation
results,
is
introduced
to
solve
the
model.
Research
of
phasor
error
characteristics
in
complex
domain
and
the
robustness
of
CWLS
algorithm
are
conducted,so
as
an
effective
method
of
choosing
weight
in
CWLS
as
well
as
bad
data
identification.
The
simulation
results
show
the correctness of the model and the CWLS algorithm proposed
is effective and strongly adaptive. KEY WORDS
锛?/p>
phasor measurement unit
锛?/p>
phasor error characteristics;
linear
state
estimation
锛?/p>
weight
锛?/p>
improved
normalized
residual