Solutions of Electric Power System Stabilization...Customer benefits：Avoidance of power risk...

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Solutions of Electric Power System Stabilization

September 15, 2015Fuji Electric Co., Ltd.

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Industrial park

Overview of Fuji Electric’s Power System Stabilization

Fuel cell

Gas supply plant

Factory(FEMS)

House

Community Energy Management System

Optimum supply and demand control

Building （BEMS）

Sewage treatment facility

Neighborhood facility

Information networkHeat networkElectric power networkGas network

Large power plant

Distributed generator &Storage battery

Optimum supply and demand control

Fuel cell

Distributed generator &Storage battery

Fuel cell

Gas cooperation

Gas cogeneration

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Instantaneous voltage dropInstantaneous power failure

YES

YES

Momentary voltage drop compensator(UPS8000H)

Continuous commercial power supply type UPS with constant

voltage control function(UPS8000D)

NO

Cogeneration +High-speed breaker

Continuous inverter powered UPS

(UPS6000D)

Commercial power supply is high

quality?

Types of power failure and counter measure

NO NO

YES

Entire high voltage system need to be compensated for Instantaneous voltage drop?

Energy savingReduction CO2

+ Diesel generator for long power outage

YES

NO

YES

NO Energy savingReduction CO2

Energy savingReduction CO2

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Fuji Electric Cogeneration System

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Grid

GAS

22 kV

Electricity

Overview of Cogeneration System

Grid Connection

ChillChiller(Existing)

B ilBoiler(Existing)

Factory

Hot Water

Chilled Waterfor

Air Conditioning

Cogeneration

Benefits of Cogeneration System:◆Energy Cost Saving◆Power Source Security when Grid Outage◆CO2 Reduction

Steam Ab iAbsorptionChillerSSteam

Hot Water<Drying><Steamed

/Humidifying><Calcination>

<Concentrated><Extraction><Distillation>

<Sterilization><Wash>

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When instantaneous voltage drop (outage) in the commercial power network from thunder occur, PC or control devices are affected such as suspension.Therefore, clients such as semiconductor industry who do not allow instantaneous voltage drop traditionally take measures such as to install UPS to individual loads.Recently, such cases are increasing as to introduce Instantaneous Voltage Drop Avoidance Device to protect total plant, or to introduce Cogeneration + High-speed Breaker for critical loads.

Total plant Uninterruptible Power

（２ｓ）

High Voltage Grid

Critical Load

Instantaneous Voltage Drop Avoidance

Low Voltage Grid

1 Cycle: 20ms at 50Hz

Thunder, etc.

Power Stabilization Example (instantaneous voltage drop)

disconnecting the grid when voltage drop occurs within 20ms. (Only applied to 3.3/6.6kV grid.)

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Achieving visualization, analysis, and optimization of energy by introducing FEMS Drastically saving the power cost by optimizing the integrated operation and self-sustained operation of the grid power and

cogeneration system Drastically saving the fuel cost of the existing boiler system (for air conditioning) by utilizing effectively heat (steam) and

electricity

Total efficiency of GE : 68.6％

Panoramic view of Yamanashi factory

Customer benefits： Avoidance of power risk (productivity improvement)

Simple single-line diagramof the entire factory

Gas cogeneration system

Panoramic view of Yamanashi factory

Reference Site: Fuji Electric Yamanashi Factory

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The FEMS (Factory Energy Management System) model by the best-mix of electricity and thermal energy

Grid power

Chiller

Compressor

Production

facility

Fuel

Airconditioner

Pure water heating

Steam

Boiler

Cold water

Grid power

Chiller

Compressor

Productionfacility

FuelAir

conditioner

Pure waterheating

Steam

Boiler

Cold water

Fuel cell

Optimal control

FEMS: Electricity: Hot energy

: Cold energy

Fuel

Conventional model

Steam chiller

Hot water Chiller

Hot water Chiller

Steam chiller

Reference Site: Fuji Electric Yamanashi Factory

Gas engine

co-generation

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Integrated Energy Management System

Integrated Energy Management System

Co-generation system

Power receiving & transmission

facility

Sensor

In-house power generator optimal control system

ControllerInstrumentation sensor／

Control device

Electricity

Steam/ heatFactory Building

Fuji Integrated Energy Management System utilizes our sensing technology, ITC technology, and data analyzing technology, and realizes minimization of energy consumption by its high level analyzing support and energy-saving control, and optimization of supply/demand balance by advanced operation control of energy supplying facility.

0

200

400

600

800

1000

1200

1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

時間(h)

電力

(kW)

0

200

400

600

800

1000

1200

電池

充電

量（kW

h）

放電

G1

G2

G3

G4

G5

充電

需要+充電

充電電力量

需要予測

Demand predictionDemand prediction

Supply/demand management

Supply/demand management

DRDR

Generation controlGeneration control

Supply/demand control

Supply/demand control

Co-generation optimal control system Energy Management System

Consumption analysisConsumption analysisDemand predictionDemand prediction

Record managementRecord managementSaving power orderSaving power order

Demand adjustmentDemand adjustment Production planningProduction planning

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Benefits of Cogeneration System

Energy Cost SavingThe electricity purchased from Grid can be saved- By using the electricity generated from the cogeneration system.- By using the generated exhaust heat (hot water), and creating cold water for air conditioning through the absorption chiller, thus saving the electricity used in the existing chiller.

The gas used for the existing boiler can be saved- By using the generated exhaust heat (hot water).

Power Source Security when Grid OutageThe cogeneration can supply sustainable electricity,thus enhancing the business continuity of the Factory.

CO2ReductionFactory Promotion: Contribution to the environment

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Step1 Check Conditions(1) Estimate Load（Electricity / Chilled Water / Hot Water / Steam）(2) Purpose (Save Energy Cost / Secure & Stable Power Supply)

Step2 System Settings(1) Check the Current System(2) Propose the New System

(Capacity / Engine / Exhaust Gas Recovery Method)Step3 Simulation(1) Energy Revenue & Expense Calculation(2) Cost Calculation (Initial / Running / Fuel / Maintenance etc.)

Step4 Evaluation(1) Energy Saving Amount(2) Environment Adaptation (NOx Regulation / Noise / CO2 Emission etc.)(3) Economics (Simple Payback Period)

Step5 Introduction Decision(1) Finalization of the System(2) Cash Flow Calculation and Decision by the Customer

Approach to Cogeneration Introduction

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Fuel Natural GasOther （）※Future plan for using Natural Gas ? Yes / No

Contract power（kW）Receiving voltage (kV)/Frequency(Hz)

Available Space for Installation（m2）

Indoor（ m2）：Floor（ F ）Outdoor（ m2）

Measures for instantaneous voltage drop

Air Condition Type Central Type Individual TypeOther（）

Boiler Use Status Fuel Yes (Steam / Hot Water ) No

Ability :（ t / h）

Questions for Cogeneration Introduction

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Sample: CHP(Cogeneration) System

Conditions for grid connection will be discussed with Power Company.

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Gas engineContainer type

Easy to install Multiple installation example

Cogeneration installation example

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Effective use of JCM

Reduction of the initial investment by the JCM (Ministry of the Environment)

Facilitating diffusion of leading low carbon technologies, products, systems, services, and infrastructure as well as implementation of mitigation actions, and contributing to sustainable development of developing countries.

Appropriately evaluating contributions from Japan to GHG emission reductions or removals in a quantitative manner and use them to achieve Japan's emission reduction target.

1/2 of the initial investment cost will be subsidized.

Countries: Indonesia, Vietnam, Cambodia, Laos, Bangladesh, Ethiopia, Kenya, Maldives, Costa Rica, Palau

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Solutions of Electric Power System Stabilization...Customer benefits：Avoidance of power risk...

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