pt500 bnaac upgrade
DESCRIPTION
Yokogawa PT500 upgradeTRANSCRIPT
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AUTOPILOTBNAACBatch Noise Adaptive Autopilot Controller
PT500 Series UPGRADE
YOKOGAWA
Yokogawa Denshikiki Co., Ltd.Bulletin 80822M01E
1st Edition
ffim001
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FEATURESEasy Settlement of the Ship' s Basic ModelAutomatic Update of the Ship' s Disturbance ModelImprovement of Rudder Controllability by Detection of DisturbanceAutomatic Setting of Rudder Control Gain Optimally"lmprovement of Fuel Cost" as Result of the Above-Mentioned Features
AUTOPILOT ,BNAAC "BNAAC IS THE NEW FUEL SAVE TYPE AUTOPILOT INTRODUCED THE LATESTMODERN CONTROL THEORY.
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BNAAC BLOCK DIAGRAM
aa
a
t)
Ship's lSp""O v
Red arrow shows normal autopilot control loop. (Feedback Loop)Ship's Basic ModelThis model estimates ship's deviation based on the rudder input.Model ldentifier (Disturbance Model)This model estimates disturbance around the ship.Current Ship's ModelThis model is update Ship's character and disturbance.Pertormance Index and Gain ComputerThis function calculates optimal rudder gain by current ship's model.
Heading Q
a.ooJo(5!E(l)o
LL
CurrentShip's Model
Ship'sBasic Model
Ship's Basic Model
Disturbance Model
between basic
Model Identifier
Update of Optimal
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rEST RESUTT OF CONTROLLABILITYDeviation
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BNAAC.-- PT500A
4.03.02.01.0
G 0.0,g -1.0? -zo, -3.0m
-4.0-5.0-6.0-7.0-8.0
8.01.06.05.04.03.02.01.00.0-1.0-2.0-3.0-4.0
"ao!o
FI
1,800Time[s]
Rudder Angle
3,600
-BNAAC-
PTSOOA
.aEO
z6
12.0
9.06.03.00.0
-3.0-6.0-9.0
-12.0-15.0-18.0-21.0-24.0
24.021.018.01501209.06.03.00.0-30-6.0-9.0
E-
OOFcr
1.800 2,400Time[s]
Ship's Speed
) -12.0
3,600
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BNAAC
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PTsOOA16.34
16.32
16 34
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16.30C
15O< 1628zd)
1 6.26
16.24
to ll
16.32
1 6.30 -c
16.28 IFL
1 6.26
16.24
16.221,200 1,800
TimeIs]2,400 3,000
Ship's Type Draught Improvement Ratel% IRudder Angle Deviation Shrp s Speed fudCorp-rpti:nVLCC Full 60.89
-1.08 0.203 0.61
I gNnnC has achieved course keeping equal with PT500A by an amountof the steer which is 60% less.
I ship's speed was improved by BNAAC. As a result, fuel consumptionwas reduced compared with PT500A.
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TESTRESULT OF FUEL CONSUMPTIONl Containen Vessel (6,200TEU) and Cape Size Bulk Carrier (Example)
Sea State AverageContainer [%]Average
180 BC t%l2 0.85 0.713 1.1 1 0.934 1.76 1 .315 0.52
TOTAL 1 .12 0.93
UPDATE PROCEDURE FROM PTflOOAI Upsrading time will be only about 2hours, and can be upgraded on
berthing under cargo handling, without sea trial.I PT500D AutoPilot also can be upgrade to BNAAC by exchanging Auto
Steering Unit.
aa. Open Pilot Stand of PT500A. The Auto Steering Unit will be appeared.
cc. Exchange the AUTO CPU and I/O(1) PCB for BNAAC
OPEN
Two PCB forPTsOOA
REMOVE
Two PCB forBNAAC
EXCHANGE
YOKOGAWA Yokogawa Denshikiki Co., Ltd.URL : http://www.yokogawa.com,/ydkz'
..,...,;....,.... Please read the manual\"''i i !rr;!" before using this product
Marine Equipment Business DivisionAddress: Minami Shinjuku Hoshino Bldg.
5-23-13 Sendagaya, Shibuya-ku, Tokyo, 151*0051 JAPAN b6oAR (Pte.) LIMITEDg ff Oot am'Road #1 I-06/07/08
lnternational Sales Dept.Service Dept.Domestic Sales Dept.
Osaka BranchImabari BranchFukuoka Branch
Phone: (81 ) 3-3225-5383Phone: (81 ) 3-3225-5392Phone: (81 ) 3-3225*5382Phone: (81 ) 6-6345*8566Phone: (81 ) 898-22*4559Phone: (81) 92-212 a954
FAX: (81) 3-3225-5325FAX: (81) 3-3225-5325FAX: (81) 3-3225-5325
FAX: (81) 6-6345-8567FAX: (81) 898-33-2005FAX: (81) 92-272-0955
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65 65509530 (Service DePt)r"* Norios 6224089a, 65 62234196
Subject to alteration due to technical developments without notice 2011.02 (YDK)