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| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
Yokogawa Energy Management System
~”RENKEI” control
~Community Energy Management
Hiroyuki Ogata
Power & Water Sales Dept.
Yokogawa Electric Corp.
Copyright © Yokogawa Electric Corporation
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<BMK-A-18-021>
Holistic Energy Optimization Co-creating a smart society with prosumers
Power Market
Captive Renewable Energy Power Purchase
Renewable Power Generation Retails Transmission and Distribution
Captive Non-renewable Energy
Optimized Battery System Control
Community Energy Management System
Holistic Energy Optimization Demand and Supply Management
Wind Farm Monitoring and Control
Facility Maintenance Management
$ $
Multiple solutions for energy optimization
In Japan
| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
Plant Efficiency Improvement by
“RENKEI” Control in Japan
“RENKEI” means “coordinated”
| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
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Gas turbine
(+ Exhaust heat
recovery boiler)
Gas
Purchased
electricity
Turbo freezing
machine
Absorption
freezing machine
Heat
storage
tank
Load
Load
Load
Load
Power
Steam
Cool
heat
one through boiler Gas
GT: Load setting
Exhaust heat recovery boiler: Additional boiling Freezing machine
selection Hear storage amount
Before adoption of “RENKEI” control: Really multiple facilities and equipment
operation depend on each operator’s own
skill and/or knowhow.
Power load：Purchased electricity ＋generated power by Gas turbine Heat load : Turbo freezing machine＋Absorption freezing machine＋Heat storage tank Steam load：Exhaust heat recovery boiler ＋one through boiler
“RENKEI” Control outline Ex.： Co-generation + freezing machine
Big issue!!
Control of multiple facilities that have contradictory conditions is
“Expert hand”!
| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
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Gas turbine
(+ Exhaust heat
recovery boiler)
Gas
Purchased
electricity
Turbo freezing
machine
Absorption
freezing machine
Heat
storage
tank
Load
Load
Load
Load
Power
Steam
Cool
heat
one through boiler Gas
GT: Load setting
Exhaust heat recovery boiler: Additional boiling
Freezing machine
selection Hear storage amount
Power load： Purchased electricity ＋generated power by Gas turbine Heat load: Turbo freezing machine＋Absorption freezing machine＋Heat storage tank Steam load：Exhaust heat recovery boiler ＋one through boiler
“Renkei” Control outline Ex.： Co-generation + freezing machine
“RENKEI” control computer system works on behalf of “Expert hand”.
Outside cost
minimization
制御・エネルギー管理専門委員会 WG1 情報・産業システム部会
産業システム事業委員会 6
Whole plant optimization by IoT
loss
material Product
Other conditions
(ex. Climate, human)
Production plant
Process Process Process
Power supply
TG
fuel Heat supply
B B
Captive power
Power Sales Power purchase
Crude fuel
Production-Captive power cooperarion
Process-process
cooperation
Equipment
Equipment
Traditionally independent optimization at production plant, but
overall optimization by “RENKEI” control.
制御・エネルギー管理専門委員会 WG1 情報・産業システム部会
産業システム事業委員会 7
Case: “RENKEI” Control Absorption freezing machine operation optimization
Blow1
Blow2
Boiler
ST
HP steam demand
GT Heat Recovery Boiler
13A
Air
Boiler
13A
Absorption Freezing machine
Power demand
LP steam demand
Fuel gas
Steam
Electricity Target area power
steam
In Summer, absorption freezing machine was operated whole day and
GT blow was cooled.
制御・エネルギー管理専門委員会 WG1 情報・産業システム部会
産業システム事業委員会 8
Improvement sample
25262728293031
0:00 6:00 12:00 18:00 0:00
外気温
0
5
10
15
0:00 6:00 12:00 18:00 0:00
発電量
Automatic scheduling of start/stop of absorption freezing machine.
(the best timing depends on the combination of power and steam demand.)
In one day, merit should have been more if no operation until 11AM.
Operate only when both outside temp. and power
demand high
冷凍機発停比較（2012年9月4日）
Though operated in the past,,,,
More merit if
stop
Outside temp.
Output MW
START/STOP result START/STOP best
The best way is to operate absorption freezing machine only when
both temp. outside & power demand high
Comparison of
on/off
Copyright © Yokogawa Electric Corporation
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Co-generation system
Boiler
Steam demand
Power demand Power Sales
Gas
Gas company
Utility Company
Control target
Steam(boiler)
Steam(waste heat)
Electricity(generated)
Changes monthly
Tariff changes monthly
Electricity tariff
【制約】Contracted electricity
Changes real time
Optimized Co-generation plant control
Best operation control calculated
among all the conditions
Electricity (purchased)
Changes real time
Co-generation operated when high tariff and high steam demand!
All conditions considered such as
*generation cost
*equipment feature
*heat recovery efficiency
*generation efficiency
| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
Community Energy Management
System(CEMS)
Copyright © Yokogawa Electric Corporation
11
<BMK-A-18-021>
Overall optimization by CEMS
Utility company
A Company
B Company
C Company D Company
E Company
IIoT
IIoT
IIoT IIoT
IIoT
CEMS
Captive power
SPOT or JPEX Market dealing
Captive PV
Existing market
新電力
VPP function
Power demand/supply management system
Smart community
Gas Company
Battery
CEMS is in the center of smart community and It is essential not only for
energy saving , but for electricity sales/purchase and CO2 emission reduction.
Musashino clean center – Community Energy Management System
Clean Center
Electricity Heat
Baseball field
Sports complex
School Swimming pools
Athletic field
City hall
Tennis court
Community Center
Operation start: April 2017 Waste incineration: 120 t/day WTE steam turbine: 2.6 MW Gas turbine: 1.5 MW
Yokogawa supplied Control system & Energy management system
Waste-to-Energy plant
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CEMS achieve efficient energy management by predicting energy demand and calculate Energy Supply Plan.
Community Energy
Management System
Musashino Clean Center Batteries
Musashino City Hall
Musashino Sport Complex
Community Centre
Community Energy Management System Efficient Usage of Energy in the community
- Operation Plan -
Steam Turbine Cogeneration
- Prediction - Energy Demand
Prediction
- Supply Plan - Energy Supply Plan
- - Historian Management –
Supply & Demand result Utilize Big Data
- Optimization Control - Turbine Optimized Operation
Control Battery Optimized Operation
- Battery Management - Remaining battery amount
Charge/discharge optimization
- Waste Disposal Plan -
Incineration Plan, No of Boilers in service
| Document Number | June 1, 2017 | © Yokogawa Electric Corporation <BMK-A-18-021>
Thank you for your attention!
Hiroyuki.Ogata @jp.yokogawa.com
