Energy Storage - 12: Gilles Rocchia, Socomec

Nice Grid innovation

Islanding experience on LV Grid

Paris, November 19th, 2015

Gilles ROCCHIA - Marketing Strategy Director

Islanding experience on LV Grid – Nice Grid innovationGilles ROCCHIA – 11/19/2015 – Trilateral Energy Storage Workshop

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An independent manufacturer providing

expert solutions for the power

performance of LV electrical networks

SOCOMEC Group

The benefit of a specialist

production sites

9subsidiaries

21

years

93

product references

18,000customers

30,000

employees

3,100

M€ turnover

427


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SOCOMEC Group

4 fields of expertise

Power Control & Safety Managing power and protecting individuals and property

Solar Power Guaranteeing the safety and durability of photovoltaic (PV) facilities

Energy Efficiency Improving building and facility energy efficiency

Critical Power Ensuring the availability of high-quality power for critical applications


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Introduction to storage assets

Four grid storage assets have been installed

http://www.nicegrid.fr/


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LV On grid storage assets

The two low voltage grid storage assets 33 kW / 106 kWh

Converter: SOCOMEC SUNSYS PCS² TR33

Battery: SAFT

Located on the LV feeder at 400 m of the secondary substation

commissioned in NOV & DEC 2014

PRIMARY SUBSTATI

ONHV/MV

SECONDARY

SUBSTATION MV/LV

400 m

106kWh

33kW



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Introduction to storage assets

The islanding Storage System

250 kW / 600 kWh

Converter: SOCOMEC SUNSYS PCS² TR66

Battery: SAFT

Connected to a dedicated LV feeder

commissioned in MARCH 2015

PRIMARY SUBSTATI

ONHV/MV

SECONDARY

SUBSTATION MV/LV

102 m

600kWh

250kW140kWc

90kWc

16 m

102 m

15 m 200kWc

174kVA

76 m66kVA

124 m57kVA

45 m111kVA

PV 430kWc



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The islanding

A new innovation experienced

1ON grid modeManage consumption and production peaks thanks to energy storage system.

2OFF grid modeThanks to PCS, LV grid works alone with local PV production and the batteries energy.



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The islanding

SUNSYS PCS2 from 33 to 100 kW

CUSTOMER BENEFITS : Energy shifting, peak shaving and grid stabilizing

(active and reactive power) functions with the same product

Modular, flexible and scalable

Highly efficient

Compatible with different battery technologies (e.g. lead-acid, lithium-ion) and ultra-capacitor energy storage systems

98% efficiency

3 level technology

Dynamic Power Control feature

PRODUCT APPLICATIONS

Ultra high efficiency &

smart energy management

From 33kW to 100kWLow Voltage / Medium Voltage



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The islanding

Solution description

4 x SUNSYS PCS²250 kW

4 SUNSYS PCS² TR66 IM

250 kW / 600 kWh

Installed in the secondary substation MV/LV

With Smart Islanding Controller

90 kWc PV + Load

140 kWc PV

200 kWc PV

Load (57kVA)

Load (66kVA)

Load (111 kVA)

Not used

600 kWh



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-10 -

10 20 30 40 50 60

Grid Active Power (kW)

The Scheduled Islanding (06/10/2015)

First Feed Backs

402403404405406407408409

P/P Voltage (U12-VAC)

49.9549.9649.9749.9849.9950.0050.0150.02

Frequency (Hz)

Grid disconnection P=0

5 hours of islanding

F & φ Synchronization

U Synchronization

Microgrid connection

Islanding Period

KPI#7 – Voltage deviation during islanding – Relative standard deviation (%) ≤ 10% (according to EN 50160)

Transition TO Islanding Transition FromV1 V2 V3 V1 V2 V3 V1 V2 V3

1,70% 2,17% 1,69% 0,68% 0,63% 0,81% 0,62% 0,99% 0,56%

KPI#8 – Frequency deviation during islanding- Relative standard deviation (%) ≤ 1% (according to EN 50160)

Transition TO Islanding Transition From0,04% 0,10% 0,14%

KPI#9 - Total harmonic distortion – THD(%)

≤ 8%Transition TO Islanding Transition From

V1 V2 V3 V1 V2 V3 V1 V2 V3

2,99 2,47 2,59 2,33 1,62 1,46 2,15 1,84 1,75



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-150

-100

-50

0

50

100

Micro-Grid Active Power (kW)

The Unforeseen Islanding (07/10/2015)

First Feed Backs

KPI#7 – Voltage deviation during islanding – Relative standard deviation (%) ≤ 10% (according to EN 50160)

Transition TO Islanding Transition FromV1 V2 V3 V1 V2 V3 V1 V2 V3

N/A N/A N/A 0,15% 0,17% 0,10% 0,65% 0,73% 0,67%

KPI#8 – Frequency deviation during islanding- Relative standard deviation (%) ≤ 1% (according to EN 50160)

Transition TO Islanding Transition FromN/A 0,01% 0,18%

KPI#9 - Total harmonic distortion – THD(%)

≤ 8%Transition TO Islanding Transition From

V1 V2 V3 V1 V2 V3 V1 V2 V3

N/A N/A N/A 2,20 1,27 1,45 2,47 1,62 1,82

0100200300400500

P/P Voltage (VAC)

0.0010.0020.0030.0040.0050.0060.00

Frequency (Hz)

Grid failure

PV inverters reconnections

Black Start sequence (<15sec)

Grid Failure Timer

2 hours of islanding



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Conclusion

Islanding has just been tested successfully in CARROS

Islanding duration reached 5 hours on October 6th

Islanding is good solution to restore power supply after a grid

outage and to sustain supply during several hours


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Energy Storage - 12: Gilles Rocchia, Socomec

Environment

Transcript of Energy Storage - 12: Gilles Rocchia, Socomec