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Hybridizing Solar PV with AC Generation:
Inverters and Control Systems
ACEF Deep Dive Workshop on Minigrids ADB Manila, 15 June 2015
Presented by Javier Ferrer Zigor HK Ltd.
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Hybrid Inverters for Micro/Mini-grids
HIT3Centralized
Hybrid Inverters for Micro-Grids, Rural Electrification, Load Shedding and Renewable UPS
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HIT3C:
30kW,
50kW,
100kW,
150kW
Centralized Hybrid Inverters
are designed for a high PV penetration in a single power system
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Centralized Hybrid Inverters for Microgrids
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HIT3C: Architecture and Configurations
Micro Grid 3L+ N
PV Panel:
xSi, Thin Film, others
MPPT Voltage range: 420-700Vdc
Capacity: [30 kWp … 150 kWp]
Battery Bank @ 350Vdc
AGM, OPzS, OPzV, NiCd, Li-ion
Energy: [20kWh to 400KWh]
AC Distribution Line:
Full isolation from PV, AC and Battery
[3L+N x 400V/380V – 50/60 Hz]
[3L+N x 220V – 50/60 Hz]
AC Input:
AC Grid, GenSet, Hydro, others
Voltages:
[3L+N x 400V – 50/60 Hz]
[3L+N x 220V – 50/60 Hz]
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Capacidad de
Crecer en la
demanda
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When the PV is higher than
the demand, then HIT3C
charges the battery.
The HIT3C gives priority to PV, filling the
peak demand with the battery and lastly
with the AC source (GenSet or Grid).
When the Genset enters only provides
the needed balance of energy
The PV
production
Centralized hybridization of input energies
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The HITC embedded battery charger is
compatible with Lead Acid, NiCd and Li-
ion Batteries.
Offers an easy and flexible
setting mode to fit the correct
charging method.
Selectable discharge
strategies: Silent (Night
Mode), Peak Shaving, etc
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Centralized Battery Charger function
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GenSet Control System: Start/Stop
Reduction of fuel consumption
Manual, Local or
remote Start/Stop
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Centralized Genset Control System
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The HITC Alarm Delivery Screen offers flexible SMS, emailing system for remote control and to
facilitate the corrective maintenance
Able to:
send SMS (Modem GSM option).
send e-mails (Ethernet network)
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Centralized Alarm System
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Centralized PV String Supervision (Option)
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The Embedded SCADA web server offers a powerful monitoring and control tooling:
Intuitive interface.
Multilanguage Platform.
Friendly use.
Real Time Energy Monitoring.
Easy Parameterization.
Logging Capability.
Multi-Comm: TCP/IP, MODEM, etc.
Remote firmware update
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Centralized Monitoring System
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Daily
Monthly
Yearly
Cumulative
PV
Battery
AC Source
Demand
Centralized Historical Graphs
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Off-grid PV Project
PV + Hybrid Inverter + Batteries
Celagen Island – Indonesia
CASE STUDY
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CENTRALIZED HYBRID INVERTER DIAGRAM
80 kWp Solar array, of Polycrystalline 250 W PV
modules
PV1+ PV1-
● ● ●
String 1
2 1
PV-
● ● ● 2 1 N
● ●
● ●
● ●
ZIGOR HIT3C
100KW Hybrid
Inverter
Battery Bank 1000AH @ 350V :
175pcs x OPzV 1000Ah
DC Bus
HITC-100
HITC
output :
3PH+N
AC Output to
Load
output : 3PH+N
Meteorological Station
irradiance + temperature
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Power Control Systems for Micro/Mini-grids
PCM31
Power Control Modules for Grid Interactive Applications (Bill / Fuel saving) and Rural Electrification
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Power Control Module for Hybrid Mini-grids
PCM31:
From 10 kW
up to MW
scale
PCM31:
RE penetration
up to 2/3
Power Control Modules combined with On-grid Inverters are designed to hybridize
energy flows from different inputs with a medium level of RE penetration
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Power Control Module for Hybrid Mini-grids
Compatible
PV On-grid
inverters
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Astra Honda Motors – Cikampek (Jakarta) – Indonesia
PV-Grid Hybrid Project PV + Grid + Power Control Module + Inverter
CASE STUDY
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PCM31:
1 MVA
400Vac 50Hz
100 kW On-Grid Inverter
POWER CONTROL MODULE PROJECT
105 kWp PV
AC Bus Bar
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Thank You.
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