20235202

本邦洋上風力発電における自動車用駆動モータの再利用
Reuse of automotive drive motors
in offshore wind power generation in Japan
寺本 正彦(NPO法人 EVF.環境ベテランズファーム)

Masahiko Teramoto(NPO EVF. Environmental Veterans Firm)

1

AGENDA✓ Firsthalf

Supply and demand forecasts forautomobiles through CY2100 based on
population projections.

✓ Second
half

Application of automotive drive motor
systems to offshore wind powerCalibration of logistic function to actual data from 1960 to 2020
Car ownership rate(%) :Number of private cars and commercial vehicles owned per 1,000 people
Logistic function: Y(x) = S/(1+m*EXP(-r*(x-x0)) (1)1.0

1.00.9x : Percentage of car ownership in year xx0: Initial year
S : Saturation coefficientm : Initial coefficientr : Growth coefficientlogistic function (S:0.6,r:1.5,x0:1975)

0.8
r
0.7
Japan
0.6
Y(x) 0.6
0.5
0.4
0.4
m0.3
S
0.2
0.2
0.1
0.001960 1970 1980 1990 2000 2010 2020 2030 2040 2050 2060 2070

0.8

x0

1.00
100

U.S.A

0.880
0.660
0.440Japan
Solid line :Logistic function model

0.220

Dot line :Actual data (past)

0.001955
1955

1960

1975
1975

1995
1995
Year (Past)

2015
2015
2020

Data by logistic function (%)

1.0
100

Car ownership rate (%)

x(year)

0.80
80
0.60
60
0.40
40

U.S.A
R² = 0.9983

R² = 0.9835
Japan

0.20
20

0.00
00.00
00.20
20

0.40
40

0.60
60

Actual data (%)

0.80
80

1.00
100

Saturated mobility demand seen from car ownership rate.
Car ownership(vehicles per 1000 peoples)

Population(bi)Today122070Population of world
1000

1060% of Population of world
8800

U.S.A

Earth load

Demand of vehicles of world
600

64

Left axis

Japan

400
China
Right axis

2200

Korea

Supply of vehicles of world
00
1960

1980

2000

2020

2040
Year

2060

2080

2100

2120

Japan's Energy Self-Sufficiency Rate and Energy balance
2023.1.14

Primary energy

Final energy consumption

Imported fossil
energy is 90%

Non-electric sector
consumes 70%

5.8 (TWh) / Year

3.9 (TWh) / Year
Efficiency 66%(W2T) (合計；38,193億kWh/2017年)(合計57,755億kWh/2017年)
RenewableenergyVapor, heat
Gas
Power w/o REOil
再エネ, 5,585, 10%発電(再エネ以外),
19,654, 34%

Electricpower(26%)
電力製造業計, 3,981,蒸気・熱, 3,497, 6%
ガス製造, 5,107, 9%

石油製品/精製,19,581, 34%

石炭製品/コークス,
4,331, 7%

Coal & coke

その他未解析分,1,562, 4%11%

石油製品の化学産業用,
4,240, 11%

電力家庭・業務計,
6,057, 16%

石油製品の内貨物燃料用,
3,142, 8%石炭及び石炭製品の鉄鋼生産用,
3,193, 8%

都市ガス, 3,835, 10%

Fuel

Heat家庭用石油製品(灯油・LPG等),
4,169, 11%
製造業他熱供給,
2,645, 7%

Fuel & Heat(69%)

旅客燃料用, 5,370,14%

Source: EDMC2019 Handbook of Energy and Economic Statistics, The Institute of Energy Economics, Japan,Energy Balance Table/METI., Author converted the units and made some edits to create the figure.

Sea areas with good wind conditions and port areas for
installation of wind turbines but has issues.
36 Sea management area

Hokkaido Tohoku
Hokuriku area
Sold at 11.99 JPY/kWh in 2022
Noshiro Port
Akita Port
Chugoku, Shikoku,
Kyushu area
Kitakyusyu PortIssues.
(1). There is no experience in Europefor R&D of large floating wind turbines(water depth and typhoon intensity inJapanese waters).
(2). Longer payback period due to larger
size
Kashima Port
Sold at 16.49 JPY/kWh in 2022
Tokyo , Chubu , Kansai area

500km

Possible amount of offshore wind power generation(purchase period: 20 years)
Scenario 8:20.0 JPY/kWhScenario 9:22.5 JPY/kWhScenario 10:25.6 JPY/kWhScenario 11:27.5 JPY/kWhScenario 12:30.0 JPY/kWhScenario 13:32.5 JPY/kWhScenario 14:35.4 JPY/kWh

Scale of 36 managed sea areas,
44km square,70,000km^2
Actual sea surface coverage is0.1%, 70km^2 (8.3km square)

Source; MOE of Japan

Hierarchy and size for an electrolytic H2 supply capacity
of offshore wind farms
11km

44km

BaseNationwide

Managed sea area

Base(Farm)

44km

1 billion kW

11km

30 million kW
2 million kW
80,000 tons-H2/year

1.3 million tons-H2/year 46 million tons-H2/year

Unit

Operation site

Base (Farm)Managed sea area

Nationwide

Operation site-

1

180

2,880

103,680

Base--

1

16576

Managed sea area---136

Nationwide----

1Wind turbine

1

6

1,080

17,280622,080

Motors

24

144

25920

41472014,929,920

1680:70kW*24

10,0801,814,400

29,030,400

1,045,094,400

80,0001,300,000

46,000,000kW

Tons-H2/year meets to nationwide demandIncreasing size of HAWT and FAWT
Reference plan

Company A's plan

Displacement
22,500(t)Displacement
12,000(t),w/o ballast

Rotor Dia 240m

Blade Dia 185m
Height 180m

400m

15MW

Displacement
3,000(t),w/o ballast
Blade Dia 100m
Height 100m

5~15MW

Tower

Generator

Floatingstructure

Proposal B under study

1~3MW
360m

220m

A380-800

Concrete ballast

Floatingsystem
Power line
Mooring lines

100m
200m

12,000t

9,000tDepth to seabed 100m～200m(~30km offshore)First floating offshore wind turbine Hywind
Siemens Hywind Floating Wind Turbine

Y(x)=W*Hd*sin(x)xw1
w1
W=FloatY(x)=W*Hd*sin(x)Hdl2l2w2

w2

W
9Design concept study of Wind Turbine-Torque Transmission & Power Generation SystemAir reservoir

Torque transmission
Tower shaft

Rotating partby tower shaft
Fixed part bymooring lines

Sliding Seal structure X
Section A-A

Power Gen system
Inner container
configuration[Motor/Generator] [Inverter]

Mooring lines[Battery] [Tier][Real time Monitoring w/ CPU]

Discussion: Required amount of Hydrogen -Energy balance before/afterAfter

Before91% Fossil Energy

A

Supplyside
Energy100% Green energy[TWh/Year]

5.4

ExportCoal,Crude, Gas,
Gasoline etc.

Required Hydrogen
4,600*10^4
ton/Year-H2

Supplyside
Energy3.3
3.0
10%energysave

MgH2+2H2O => 2H2 +Mg(OH)2Solutions
B

ThermalPower
Transfer loss etc.
-1.8

C

Demandside
EnergyBase source, Energy Data and ModelingCenter(EDMC)::2017 energy balance summary table,
Th energy conservation center , Japan (2019)

HDT, EV+V2G
Appliance, HVAC inhouse, IR heater infactory

DistributedPowerIron , Aircraft, Citygas, High temp heatSolar heater
Geothermal

1.8A

Same usage

1.8

Equivalent mean %, (TWh/Year)
Efficiency
BeforeAfter
E (W2T): B/A 67%
5.464%
3.3
2.1
e (T2W):C/B
50%
3.686%eE (W2W):C/A 33%
1.855%
1.8

Transfer
B&Storage
Demandside
EnergyReplaceable
Green Electricity
Replaceable
Green Hydrogen
Replaceable
Solar heat

11C

Conclusion
1. A logistic function ;The demand for goods in the world will be saturated around 2070.

2. The saturation amount and timing ;To develop appropriate technology development,and investment to eliminate the over and shorter estimation : Offshore wind power
technology is a solution of simultaneous equation of issues that can/should contributeto automotive technology.
(1)
(2)
(3)
(4)
(5)

Climate change (CO2 reduction, strengthening disaster prevention systems)
Energy security (shortening transportation routes through local production for local consumption)
Fossil fuel purchase cost saving (10 trillion yen/year)
Regional economic circulation through integration with port development, etc.
Mutual complementation of existing industries that are difficult to electrify (steelmaking, chemicals,boilers, etc.)

3. Numerous reused EV/HEV/PHEV motors can be installed in lightweight, low-cost
floating wind turbines before 2030.
4. This report quantifies the energy supply-demand relationship in Japan, demonstrates
the potential for energy independence through electrification and indirect hydrogenelectrification, then discusses the following issues for reducing the electricity load.
(1) Hydrogen distribution between transportation and industrial sectors(2) Development of technology to use water as hydrogen-containing fuel12

Thank you for yourattention
Masahiko Teramotomasa.teramoto@gmail.com

13

Conclusion1.ロジスティック関数を用い世界のモノの需要を予測し,2070年頃に飽和することを示した.
2. その結果,次項に示す複層する課題に対し飽和量と次期に即して過剰/過少を排した適切な技術開発・投資・金融制度の準備ができる
3.複層する課題は以下であり 洋上風力発電発電技術は自動車技術としても貢献できる/貢献すべき連立解となる課題である.
①気候変動(CO２削減、防災体制強靭化)②エネルギー安全保障(地産地消による輸送路短縮化)③化石燃料購入費節約(10兆円/年規模)④港湾整備等との融合による地域内経済循環➄電化の難しい(製鉄・化学・ボイラー等)既存産業の脱炭素化相互補完
4.具体例として,2030年を待たずして 大量の電動自動車が寿命を終え始めるのその再利用概念として軽量低コストを狙う浮体型風車への電動車モータの搭載検討例を紹介した.
5.我が国のエネルギー需給の関係を定量化し,電化と水素間接電化によるエネルギー自立の可能性と同時に発電負荷を下げる為の下記課題を論議した.
①交通部門と産業部門の水素配分②水を含水素燃料として使う技術開発

14Changes in the penetration rate of durable consumer goods inJapanese households and in each country show sigmoid curve.
(%)

100

80

washingmachinecolor TVair conditioner
Passenger
car

60

40

refrigerator

microwave

computer

200
S35/1960 S41

S47

S53

S59

S62

H5

H11

H17

Source: Cabinet Office “Consumer Awareness Survey”, JETRO (2011)“Survey on Best Selling Products in Asia(2009)”

H23/2011