mitsubishi electric corporation

Transcription

mitsubishi electric corporation
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Development and product researches
Future
Present
Demand
Generating
increase
Generating
Thermal
Demand
difference
Thermal
Pumping
increase
Reservoir Hydro
Reservoir Hydro
Pumping
(with AFC function)
Grid Frequency can
not be controlled
(with AFC function)
Nuclear
Percentage of
Run-off-River type Hydro
Nuclear
(without AFC function)
increase
Nuclear
Run-off-River type Hydro
(without AFC function)
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Trend of Max. Head of Pump-Turbines
KAZUNOGAWA
OMARUGAWA
HONGAWA
OKUTATARAGI
TAKANE
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Trend of Max. Output of Pump-Turbines
450
KAZUNOGAWA
400
Max. OUTPUT (MW)
350
SHIN TAKASEGAWA OKUTATARAGI
OKUTATARAGI
300
OMARUGAWA
250
200
150
100
TAKANE
NIIKAPPU
50
0
1960
1970
1980
1990
2000
YEAR IN OPERATION
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
2010
Maximum Unit Capacity(G/M)
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Development and product researches
!
! The quality can be improved by applying the adjustable speed technology
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Principle of Adjustable Speed Control
Stator field
Rotor
Rotor speed
Rotational speed
of stator field
Stator
Usually, a constant speed generatormotor is excited by the DC excitation
system fixed on the rotor.
The rotational speed of the rotor field
equals the rotor speed.
Rotor field
Frequency of
excitation system
Adjustable
generator-motor
However, an adjustable speed
generator-motor is excited by the AC
excitation system fixed on the rotor.
Therefore, the rotational speed of the
rotor field equals the sum of the rotor
speed and the frequency of the AC
excitation.
nS=nR n2
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Application of Adjustable Speed system
System
Adjustable
AdjustableSpeed
SpeedSynchronous
SynchronousPhase
PhaseRegulation
RegulationSystem
System
Rotor
Phase&Speed
Control
System
Excitation
System
Excitation
transformer
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Comparison of Constant Speed and Adjustable Speed
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Constant Speed
Type
Generator-motor
DC excitation
Rotor has
“Salient pole”
with solenoid type
field coil.
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Adjustable Speed
Type
Generator-motor
AC excitation
Rotor is
cylindrical type
with three-phase
windings.
Shape
Shapeof
of rotor
rotor parts
partsisisdifferent
differenteach
eachother.
other.
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Reference record of Adjustable Speed
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
7337
733;
Adjustable Speed Control Block Diagram
power grid
Q
Active & Reactive
Power detector
VT
P
ids
iqs
phase
detector(PLL)
e
Coordinate
Convention
CT
is
+
P*
Active Power
Control
iq*
+
Control logic
Vqr
Var
Coordinate
Q*
Re-active Power
Control
id*
+
-
-
s
Vbr
Exciter
converter
Control logic
Vdr
Vcr
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
r
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Adjustable Speed Control Block Diagram
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Behavior of Adjustable speed control
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Adjustable Speed Control Block Diagram
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Behavior of Adjustable speed control
:
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Adjustable Speed Control Block Diagram
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Behavior of Adjustable speed control
,
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,
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
!
This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Variable
Constant
or Two Speeds
Rotational Speed
Rated
Pump Input
Adjustable
Not Adjustable
Pump Cavitation
Generally severer
(depending upon the
operation range)
Generally less severe
Rated or Two Speeds
Turbine Cavitation Better
-
Turbine efficiency Better
-
Turbine Operating Better
Condition such
as Head Fluctuation
-
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Operating range in turbine operation
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<3
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The turbine efficiency at partial load is improved
Lower limit of turbine operation range is expanded.
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Turbine Efficiency
Increase Turbine Operating Condition Especially in Partial Operation
(Improve Turbine Efficiency, Turbine Runner Inlet Cavitation Characteristics etc.)
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Operating range in Pumping mode
Hpmin
Pump Input
Variation Range
nmin
Constant Speed
Operating Line
Hpmax
nmax
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Operating range in pumping operation
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Limitation and Operating zone in pumping mode
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Kazunogawa Power Station
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Kazunogawa Power Station
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Takami Power Station
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Omarugawa Power Station
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
Omarugawa Power Station
Spec. of system
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This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
AVCE Power Station
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.
AVCE Power Station
Spec. of each components
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This document contains information proprietary to Mitsubishi Electric Corporation. It is submitted in confidence and is to be used solely for the purpose for which it is furnished and returned upon request.
This document and such information is not be reproduced, transmitted, disclosed or used otherwise in whole or in part without the written authorization of Mitsubishi Electric Corporation.