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ADI Energy Segment Overview
Analog Devices leads the industry in highly accurate and precise signal
measurement and control by delivering cost competitive, high quality
ICs for reliable metering, measurement, monitoring, and control. These
products are used in renewable energy, electrical power transmission, and
distribution applications, as well as electric, gas, and water metering. The
combination of ADI’s proven expertise in optimized system-level signal
processing performance and its extensive range of product offerings
provides developers with accurate, reliable, and easy-to-design energy
management solutions.
Main Challenges and System Considerations
X
Reduces the dollar per watt system cost
X
Increased grid compliance capability
X
Reduced weight/size through minimization of magnetic and
passive components
X
Higher reliability and longer lifetime capability
X
DC arc detection for fire mitigation
X
Minimization of dc injection current onto the ac grid
Project Code: APM_SOLAR-PV_2017
ADI RENEWABLE
ENERGY—SOLAR PV
INVERTER SOLUTIONS
Solar PV Application Categories
X
Offline solar PV systems
X
Grid-connected solar PV systems
• Utility scale 3-phase PV inverters
(
>100 kW
)
• Distributed 1-phase and 3-phase PV string inverters
(
1 kW to 50 kW
)
• 1-phase microinverter and dc optimizers
(
200 W to 300 W
)
Why Choose ADI
X
Expertise in integrated energy measurement—300 million ADI
metrology-based meters have been deployed
X
Industry leadership in next-generation, higher reliability, isolation
technology
(
i
Coupler
®
)
X
50% of all electrical grid equipment worldwide uses ADI converters
X
Precision measurement of current and voltage through highly accurate
converters and amplifiers
X
Enabling power networks and smart grids through the use of high
performance processing technology engineered with robustness
and reliability
X
System-level, mixed-signal conversion and processing, whole signal
chain products optimized for solar PV inverters, reduced time to
market, and differentiated end equipment
2
ADI Renewable Energy—Solar PV Inverter Solutions
Solar PV Inverter Signal Chain
Notes: The signal chain above is representative of solar PV inverter systems. The technical requirements of the blocks vary, but the products listed in the table are
representative of ADI solutions that meet some of those requirements.
Featured Products
Part Number Description Key Features Benefits
Processors
ADSP-CM403F Mixed-signal processor
240 MHz ARM
®
Cortex
®
-M4, 384 kB SRAM and 2 MB flash memory, dual,
16-bit SAR ADCs and 14 bits of accuracy, 2.6 MSPS, integrated sinc filters
ADI processor family with Cortex-M4 core
for solar inverter applications
ADSP-CM419F Mixed-signal processor
240 MHz ARM Cortex M4 ,100 MHz ARM Cortex-M0, 160 kB SRAM and
1 MB flash memory, 6-way 16-bit ADCs, 4.3 MSPS, integrated FFT and
CORDIC accelerator
The processor, specifically made for solar
inverters, eliminates the need for external
safety processors as well as processors
for arc detection; the internally integrated
FOCP circuit, among others, can reduce
the need for extra external circuitry
ADSP-2147x Floating-point DSP
300 MHz SHARC
®
core, 5 MB SRAM, rich peripherals such as PWM
and SPORTs
High performance floating-point
calculation and peripherals to connect to
high performance ADCs
(A) Controllers and
Processors
(B) ADC and Voltage
References
(C) Signal
Conditioning
(D) Isolation and
Gate Drivers
(E)
Power Management
(F) Communication
Interfaces
(G)
Energy Meters
ADSP-2147x/
ADSP-CM403F/
ADSP-CM419F
ADCs:
AD7606/AD7607
AD7266/AD7265
Isolated ADCs:
AD7401A/
AD7403
Reference:
ADR34xx
Op Amps:
ADA4177-x/
AD8479/
AD8604
Current-Sensing Amp:
AD8212
Isolation Drivers:
ADuM14x/ADuM6000
Isolated Gate Drivers:
ADuM3223/
ADuM4223/
ADuM4135/
ADuM4136/
ADuM4121
DC-to-DC:
ADP211x
PMUs:
ADP5034/
ADP5071
Supervisors:
ADM6305/ADM6306
RS-485:
ADM2587E
CAN:
ADM3053/ADM3054
ADE7953/ADE7880
AC Grid
Isolated PWM
Gate Drive
Isolated
ADC
REFREF
Isolated PWM
Gate Drive
Isolated
Communication
Interface
Energy
Metering
System/Communication
Controller
Multichannel
ADC
Sinc3
Filter
DC-to-DC
Controller
DC-to-AC
Controller
DC-to-DC Stage
String of PV Panels
(A)
(E)
Power
Management
System
Supervisory
(F)
(G)
(D) (D)
(B)
(B)
(B)
DC-to-AC Stage
(C)
Amp Amp Amp Amp Amp Amp Amp Amp
(C)
Multichannel
ADC