Handbook of Energy Storage for Transmission or ... - W2agz.com
Handbook of Energy Storage for Transmission or ... - W2agz.com
Handbook of Energy Storage for Transmission or ... - W2agz.com
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EPRI Proprietary Licensed Material<br />
Table 1-2. NAS PQ Module Combined Pulse and PS Operating Regimes<br />
Operating<br />
Regime<br />
Pulse<br />
Fact<strong>or</strong><br />
(1)<br />
Pulse<br />
Interval<br />
(2)<br />
PS <strong>Energy</strong>,<br />
kWh ac<br />
(3)<br />
Recharge<br />
Interval, hr<br />
(4)<br />
# PS Cycles<br />
Over Life<br />
(5)<br />
Coincident<br />
Pulse & PS<br />
(6)<br />
30 second pulse duration<br />
1 5.0 5x/hr 0 NA 0 NA<br />
2 4.3 5x/hr 155 5 2500 Yes<br />
3 3.0 5x/hr 360 10 2500 Yes<br />
4 3.0 5x/hr 155 5 5000 Yes<br />
5 minute pulse duration (plus 30 sec cumulative within any pri<strong>or</strong> 1 hour)<br />
5 4.5 12hr 0 NA 0 NA<br />
6 3.5 12hr 155 5 500 Yes<br />
7 3.5 12hr 360 10 500 No<br />
15 minute pulse duration (plus 30 sec cumulative within any pri<strong>or</strong> 1 hour)<br />
8 4.0 12hr 0 NA 0 NA<br />
9 3.7 12hr 155 5 500 No<br />
1 hour pulse duration (plus 30 sec cumulative within any pri<strong>or</strong> 1 hour)<br />
10 2.6 12hr 0 5 0 NA<br />
Notes<br />
(1) Pulse Fact<strong>or</strong>: Multiple <strong>of</strong> Rated PS Power <strong>f<strong>or</strong></strong> sh<strong>or</strong>t duration power delivery<br />
(2) Pulse Interval: Interval between successive pulses <strong>of</strong> the magnitude noted. F<strong>or</strong> 5 minute,<br />
15 minute, and 1 hour PQ regimes; cumulative sh<strong>or</strong>t pulses up to 30 seconds per hour<br />
pri<strong>or</strong> to a 5 minute, 15minute , <strong>or</strong> 1 hour pulse are also acceptable.<br />
(3) PS <strong>Energy</strong>: <strong>Energy</strong> delivered from NAS battery during PS cycle (see pr<strong>of</strong>ile)<br />
(4) Recharge Interval: Minimum interval to recharge unit <strong>f<strong>or</strong></strong> next cycle<br />
(5) # PS Cycles Over Life: The design basis number <strong>of</strong> 42% (155kWh) <strong>or</strong> 100% (360kWh) DOD<br />
cycles over the life <strong>of</strong> the system<br />
(6) Coincident PQ & PS: Acceptability <strong>of</strong> simultaneous pulse and PS events with respect to<br />
thermal management<br />
1.2.4 NAS Battery Installations<br />
Figure 1-7 is a photograph <strong>of</strong> the 6MW, 48MWh<br />
NAS system at TEPCO’s Ohito substation. A<br />
similar installation has been constructed at<br />
TEPCO’s Tsunashima substation. These<br />
arrangements provide the bases <strong>f<strong>or</strong></strong> layout data used<br />
in Sections 3 and 4.<br />
Figure 1-7. 6MW, 48MWh NAS System<br />
at TEPCO’s Ohito Substation<br />
1-6
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