ampyxpower: towards a commercially viable airborne wind energy solution

8/9/2019 AmpyxPower: towards a commercially viable airborne wind energy solution

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A NEW WIND-POWER GENERATION METHOD

EMPLOYED WITH HIGH ALTITUDE WIND

Pim Breukelman1, Michiel Kruijff 1, Hironori A. Fujii2, Yuusuke Maruyama3

1Ampy Po!er 2Kana"a!a #ns$i$u$e of %echnolo"y

3Me&a 'orpora$ion

()MMA*Y+ A ne! me$ho& of !in&po!er "enera$ion is in$ro&uce& in $his paper. %he $echnolo"y, &e-elope& y

AmpyPo!er, "enera$es ener"y y flyin" a $e$here& "li&erplane a$$ache& $o a "roun&ase& "enera$or follo!in" a cross!in& pa$$ern as $he $e$her un!in&s un&er hi"h $ension /plane spirals a!ay from $he "enera$or0, an& re!in&s un&er nearero $ension

/plane "li&es ack $o "enera$or0. %he enefi$s, &ra!acks an& &ecision ra$ionales of major &esi"n choices are &iscusse&+cross!in& opera$ion, ri"i& plane concep$, "roun&ase& "enera$or. %he &e-elopmen$ plan is share& an& performance claims

are suppor$e& y pro$o$ype $es$s an& e$rapola$ions ase& on -ali&a$e& &ynamic simula$ion, pro-i&in" confi&ence $ha$ ahi"hly compe$i$i-e u$ili$yscale solu$ion can e pro-i&e&. Keywords+ rene!ale ener"y, !in& po!er, airorne !in& ener"y

INTRODUCTION

Ampy Po!er &e-elops $he Po!erPlane, a no-el !in& ener"y

$echnolo"y $ha$ !ill e-en$ually allo! sus$ainale pro&uc$ion of po!er a$ lo!er cos$s $han fossilfuele& al$erna$i-es. #$ $hus has $he po$en$ial

$o $ri""er a para&i"m shif$ in $he elec$rici$y sec$or.

A NEW WIND-POWER GENERATION METHOD

Concept

Po!erPlane sys$ems con-er$ !in& po!er in$o mechanical po!er yha-in" an au$opilo$con$rolle& "li&er plane crea$in" pull on a $e$her

y flyin" repe$i$i-e cross!in& pa$$erns a$ an al$i$u&e of 2me$ers /Fi"ure 10. 'on-ersion $o elec$rical po!er happens in a"roun& moun$e& "enera$or from !hich $he $e$her is e$rac$e&. 4nce

$he $e$her has een e$rac$e& $o full len"$h, $he "li&er plane iscon$rolle& $o &i-e5"li&e $o lo!er al$i$u&e, &urin" !hich phase $he

$e$her is re$rac$e&. 6urin" $his reelin phase, $e$her $ension is minimalan& po!er consump$ion is only a frac$ion of $he po!er pro&uce&

&urin" $he reelou$ phase.

Figure 1: Principle of operation

#n $he case of con-en$ional !in& $urines, only $he $ips of $he la&esmo-e a$ $he maimum -eloci$y an& "enera$e $he -as$ majori$y of $he

po!er /!hich is propor$ional $o air spee& cue&0, $he remain&er of $he $urine /la&e roo$s, mas$0 is -ir$ually &ea& !ei"h$. Moreo-er, $he

fac$ $ha$ $he !in& force ac$s on $he $op of a $all mas$ con$riu$es $o amassi-e $or7ue $ha$ &eman&s fur$her increase of $he mas$ !ei"h$ an&

a hea-y an& &eep foun&a$ion. #n con$ras$, $he full !in" span of $hePo!erPlane is epose& $o $he hi"h spee& of $he air flo! $ha$ is

o$aine& y $he cross!in& $rajec$ory of $he aircraf$ 8*ef. 19,$herefore $he use of s$ruc$ure is maimally effec$i-e. %here is no

$or7ue, so $he foun&a$ion can e minimal. %his is par$icularly $rue for

offshore applica$ions, !here $he Po!erPlane "enera$or can simply e place& on a floa$in" ar"e.

:i$h synchronie& sys$ems posi$ione& closely $o"e$her, our commercial sys$em &esi"n /AP0 is epec$e& $o e-en$ually achie-e a

park le-el ener"y &ensi$y of aou$ 1;2 M:5km2 a$ op$imum


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Appro#$% st$t&s

4ur pro$o$ypes alrea&y comply !i$h s$rin"en$ ci-il a-ia$ion safe$y

s$an&ar&s /Fi"ure 30. Au$onomous fli"h$ opera$ions are performe& a$our $es$ si$e un&er appro-al an& eemp$ion pro-i&e& y $he %he

6u$ch Airspace Au$hori$ies.

Figure 3: AP-2A aircraft and 90 kW generator

PER'ORMANCE (U)(TANTIATION

%he claime& performance of $he Po!erPlane has een sus$an$ia$e& y a mul$ipron"e& approach+

1. (imula$ion usin" &e$aile& mo&ellin" of aircraf$ fli"h$charac$eris$ics /incl. (imula$e& &eflec$ion of all con$rolsurfaces0 an& con$roller.

2. Pro$o$ype fli"h$ jusin" AP1 an& AP2 /Fi"ure 30, ma$chin"

closely $he resul$s of s$ep 1.

3. Fas$ simula$ion usin" -ali&a$e& poin$mass &ynamics for

siin" an& op$imia$ion purposes.

4. Ampy siin" $oolo, Fi"ure 11, use& $o sie $he

commercial sys$em /AP0.

AD *+ RE(ULT( O' PROTOTYPE TE(T

Fully au$onomous fli"h$ $es$s /launchclimen$rypa$$ernreeline$c.0are curren$ly ein" performe& !i$h $!o neari&en$ical re"is$ere&

aircraf$ /AP20, Fi"ure 3. %here is capaili$y for unlimi$e& fli"h$ /on oar& po!er "enera$ion0 an& for propulsion /compac$ lan&in" an&

$akeoff0. Au$onomous fli"h$ !i$hou$ in$er-en$ion has een&emons$ra$e& for fli"h$s of o-er 2 hours. Fli"h$ &a$a of $he pre-ious

"enera$ion AP1 /2110 has een ma&e a-ailale /Fi"ure , *ef. 20,from !hich $he ma$ch !i$h $he a&-ance& simula$ion mo&el /i$em 1.

ao-e0 has een es$alishe&, an& si"nifican$ ne$ po!er "enera$ion issho!case& /inclu&in" in fac$ fee&in" ne$ po!er in$o $he "ri&0.

Figure 4: AP-1B test results (2011 s!o"ing significant net po"er

generation#

AD,+ (OME RE(ULT( O' 'A(T DYNAMIC (IMULATION

For $he purpose of op$imia$ion !i$hin $he Ampy sys$em siin"$oolo, $hree fas$ mo&els ha-e een in&epen&en$ly &e-elope&+1. 6ynamic pa$h $racker of a poin$mass !i$h lif$, &ra" an& an"le of

a$$ack an& roll /nosi&eslip assump$ion0. 4p$imal $ension&e$ermina$ion /per $ime s$ep, ma. po!er0. %e$her force -ec$or

mo&el. Allo!s for po!er cappin" y an"leof a$$ack con$rol.2. 6ynamic !aypoin$ $racker /$ar"e$ ahea& of curren$ posi$ion0. #$

inclu&es physically realis$ic $ransi$ion $o reelin.3. Euasis$a$ic simula$ion. Force alance inclu&in" cen$ripe$al force.

%he $hree simula$ions pro&uce !i$h percen$ poin$s i&en$ical resul$s%he eac$ pa$$ern follo!e& has li$$le influence on po!er "enera$ion,

*esul$s are repor$e& from (imula$or 1 /Fi"ure ;0 for fairly hi"h !in&spee&. A$ lo!er !in& spee&, $he $ension !ill e more irre"ular an&

elo! i$s maimum, such as sho!n in Fi"ure .


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Figure $: %ec!anical po"er (&reen and e'uialent )a*# c+cle

po"er (,ed .ased on 20 )/s reel-in - for 3$ kg 2#$ 3 )

2

Po"erPlane at 11 k tension 15 )/s "ind speed resulting airspeed a.out 45 )/s# ,esp# reference (!ori6ontal 5 pattern p"oercapped at

50 kW and 10*1$ deg circular pattern#

AD + (I.ING O' A COMMERCIAL (Y(TEM

%he $ools an& me$ho&olo"y of Fi"ure 11 has een applie& for a preliminary sensi$i-i$y analysis $o un&ers$an& $he primary cos$ fac$ors

an& suppor$ &esi"n &esi"ns an& firs$ or&er siin"s.

M$ss /ode% %he a&-ance& mass mo&el is no$ &iscusse& in $his

paper, u$ resul$s in a mass &epen&ency no$ unlike $he follo!in"+) /3 7 (3$ 8 ()a* - 11000 / (1000 8 3 2

) in 8k"9, !in" area in 8m29, )a* $he ma. opera$ional cale

$ension in 8>9. %his approima$ion has een use& in mos$ of $he elo! analyses /!here no$ men$ione& o$her!ise0.

Power c&r#es %ypical po!er cur-es for &ifferen$ maimum cale

$ension are sho!n in Fi"ure .


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Figure ualitatie results of A)p+*Po"er co))ercial si6ing e*ercise and AP-4A target si6ing#

Figure 10: Po"erPlane generations AP2 (left in operation AP3()iddle under deelop)ent AP4 (co))ercial ersion

Figure 11: A)p+* Po"er tool.o* and )et!odolog+ for s+ste) si6ing to )ini)al o?

CONCLU(ION(

%he AmpyPo!er Po!erplane concep$ "enera$es ener"y y flyin" a

$e$here& "li&erplane a$$ache& $o a "roun&ase& "enera$or follo!in"a cross!in& pa$$ern as $he $e$her un!in&s un&er hi"h $ension /plane

spirals a!ay from $he "enera$or0, an& re!in&s un&er nearero$ension /plane "li&es ack $o "enera$or0. AmpyPo!er curren$lyopera$es 3 pro$o$ype Po!erPlanes /incl. AP2A1 an& AP2A2, aou$

2 k: ne$ po!er pro&uc$ion &emons$ra$e&0 in a $es$fiel& in %he >e$herlan&s. %he fAP3 is curren$ly un&er &e-elopmen$ follo!in"

s$rin"en$ aeronau$ical &esi"n processes, air!or$hiness an& safe$ys$an&ar&s. %he AP /2 M: class0 shall opera$e a$ a


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(upercri$ical Flo!, AAA @ournal , @/30+;1;1,6ecemer, 1@?.

8;9 (.*. >orris an& 6. An&risani ##, @?@@122;, 211.

COPYRIGHT

%he copyri"h$ elon"s $o $he au$hors. %he Lran& *=21 4r"aniin"'ommi$$ee has a ri"h$ $o pulish As$rac$ ooks an& procee&in"s for

$his conference.

ampyxpower: towards a commercially viable airborne wind energy solution

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