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TRC proprietary. Multiple patents pending
Micro-Parallel Inverters (MPI); Intelligent Alerts, Smart Data and a 75% reduction in installation
and activation
Arnold Kravitz VP Commercial Businesses, Technology Research Corporation Clearwater, FL
TRC proprietary. Multiple patents pending
Taxonomy of a PV investment was the impetus to design the Micro-Parallel Inverter (MPI)
* Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab).
Residential and small commercial systems <10kW • Framing
0.68/W 1.10/W
• Panels 0.70/W 1.00/W
• Inverters 0.70/W 1.00/W
• Installation 1.82/W 2.8/W
• Total cost $ 3.90/W 5.90/W
Installation is largest cost driver by a factor of 2 to 3
TRC proprietary. Multiple patents pending
1. String inverter - Converts DC to AC for a string of panels
• High voltage DC inputs • PV panels are connected in series. Voltage builds with each
panel. • Conveniently placed near the service box • Smart Data limited • MPPT tracking for the string • String inverter with digital optimizer- adds a component
to each panel to provide smart data, and improved MPPT • Size of a micro inverter (small cigar box) Mounted like a
micro inverter • Provides MPPT tracking and Smart data for each panel • Power generation continues with the loss of any given panel • The string can drop out if an optimizer fails • PLCC communications
MPI’s give designers a new Inverter option
TRC proprietary. Multiple patents pending
2. Micro Inverter - Converts DC to AC for each panel • Low Voltage DC voltage inputs < 50V • Smallest size • Mounted on the panel or rack • MPPT tracking of the inverter for each panel • Smart data to the individual inverter and panel • Power generation continues with the loss of any given
panel • PLCC, ZigBee and Wi-Fi communications • Web based support and display
MPI’s give designers a new Inverter option
TRC proprietary. Multiple patents pending
3. Micro- Parallel Inverter (MPI) • Converts DC to AC for up to 4 panel • Low Voltage DC voltage inputs < 50V • Each panel handled as an individual • Conveniently placed as desired ( Panel, rack ,roof, or near service box) • MPPT tracking of the inverter for each panel • Smart data to the individual inverter and panel • Intelligent alerts emailed to the maintainer/owner isolates failure to
panel or inverter. • Graceful degradation ( continues to operate with as few as 1 panel
powering the inverter) • Thermal survival mode (throttles power generation to survive
abnormal ambient temperatures) • Remote power throttling by the owner/ or power authority to
mitigate over production
MPI’s give designers a new Inverter option
TRC proprietary. Multiple patents pending
Comparison of the 3 Inverter technology systems
Breaker panel
Grid
DC Optimizers
DC Combiner Inverter Disconnect
Breaker Panel
Grid
Disconnect
EMC
Breaker Panel
Grid
Disconnect
EMC
String Inverter with DC optimizers
µ- Inverter Micro Parallel - Inverter
TRC proprietary. Multiple patents pending
MPIs provide an advantage over String inverters re; Hardware, cabling, Installation and Maintenance costs
• Simplified low voltage AC cabling • Graceful degradation when panels fail • No DC combiner's or optimizers • Intelligent alerts and diagnostics
Reduce truck rolls • Field reparable components • Self mapping array automatically maps
inverter location to their physical location in the grid map
• Time saving during installation • Eliminates “hunting the field” for the
failed inverter or panel if mistakes occurred during a manual mapping..
• DC optimizers on each panel • provide the smart data to a string array • Increase installation labor • require manual mapping
Breaker Panel
Grid
Disconnect
EMC
MPI
Breaker panel
Grid DC Optimizers
DC Combiner Inverter
Disconnect
Micro Inverter
TRC proprietary. Multiple patents pending
MPI’s provide an advantage over micro-inverters re: Installation and maintenance costs
• ¼ the units to install • ¼ the units to monitor via PLCC
• 400KW with MPI vs 100KW micro inverter • Self launching web; data to each panel • Self mapping array automatically maps
inverter location to the grid map • Labor and error reduction • Eliminates “hunting the field” for the failed
inverter or panel • Lower cost cabling / grounding system
• MPI 16 panels/ trunk with 1 disconnect • Micro 16 panels has 16 disconnects
• Intelligent alerts diagnostics • Isolates failure to inverter Chanel or panel • Only alerts on serious failures • Reduces truck rolls
• Field reparable
Breaker Panel
Grid
Disconnect
EMC
Breaker Panel
Grid
Disconnect
EMC
µ- Inverter
MPI
TRC proprietary. Multiple patents pending
Inverter Technology selection based on installation specifics
µ- inverters
Micro- Parallel Inverters ((240V and below)
500 KW
20 KW
Utility level generation
Commercial generation
Residential generation
5 KW
200 KW
1 MW and above
String inverter
Utility Scale Central
Inverter (1000V)
480V and above
240V and below
TRC proprietary. Multiple patents pending
A new paradigm in inverter technology • Convert 300W per channel • Harvest the maximum amount of available energy. • Expedite installation, and activation, reduce maintenance, reduce repair false alarms
• Self launching easy access open web interface • Self mapping array • Simplified cabling • Remote activation and termination control for the owners • Autonomous system monitoring with automated smart alerts • Does not require the internet for component initiation or re addressing
• Work on or off grid from batteries or worn generators • 50HZ compatible • Up to 200KW 240W installation • Up to ½MW 480V 3 Ø AC with combiner boxes and transformers
Micro Parallel Inverters (MPI)
TRC proprietary. Multiple patents pending
THREE TYPES MICRO GRIDS CAN BE CONSTRUCTED WITH MPI’S
1. Off grid 2. Grid tied 3. Grid tied with automatic emergency power
TRC proprietary. Multiple patents pending
Off Grid Micro Grids constructed with MPI’s
• Provides power to a building with out connection to a utility power grid.
• Requires a generator to serve as the grid (fueled or battery).
• If the generator is battery powered a fueled generator or dedicated solar panel is recommended to recharge the batteries due to inclement weather.
TRC proprietary. Multiple patents pending
Off grid, micro grid architecture
Breaker panels
EMC Internet Server
Remote Web site CAT 6 Ethernet
Transformer 240/120 V coax
30A trunk cable
30A trunk cable
30A trunk cable
Diesel Generator
Sat phone link
Service panels
TRC proprietary. Multiple patents pending
Off grid, micro grid architecture using battery powered AC generator
30A trunk cable
breaker service panels
EMC
Features 1. Self launching website 2. Auto mapping by
• Using a wizard • throwing breaker • Viewing on the
display the web site 3. Fault detection
• by covering a panel 4. Battery based solution.
48 VDC to 240V AC pure sign wave inverter
48 VDC solar battery charge controller
TRC proprietary. Multiple patents pending
Grid tied Micro Grids constructed with MPI’s
• Provides supplements solar power to a building that is tied to the utility power grid.
• Anti islanding circuits shuts off the inverters when the grid fails or browns out. • Senses power resonances and shuts the
system down. • critical safety feature that allows power crews
to safely work on restoring power and prevents the
TRC proprietary. Multiple patents pending
Grid tied micro grid architecture
Master Emergency power Off grid manual transfer switch
Grid
Power Meter Breaker panels
EMC Internet Server
Remote Web site
CAT 6 Ethernet
Grid power
Transformer 240/120 V
coax
30A trunk cable
30A trunk cable
30A trunk cable
TRC proprietary. Multiple patents pending
3 Φ grid tied micro grid architecture
Master Emergency power Off grid manual transfer switch
Grid
Power Meter 3 phase
EMC Internet Server
Remote Web site
CAT 6 Ethernet
Grid power
Transformer 240/120V
coax
50A trunk cable
50A trunk cable
50A trunk cable
Phase A
Phase C Phase B
3 phase Connector
With PLCC coupling
14’ 3Ø connector cable 28’ 3Ø connector cable
TRC proprietary. Multiple patents pending
Grid tied with automatic emergency power Micro Grids constructed with MPI’s
• A grid tied system with automatic transfer switches • Automatically disconnects from the grid when the grid voltage drops
below a set level • Automatically then turns on a fueled or battery powered AC generator
• Generator must be of the same size as the anticipated system load • If generator is under sized grid will collapse • This allows the grid tied system to behave as an off grid system • Batteries are preferred as they serve as ballasts during compressor
and A/C startups. • Automatically shuts down should battery level fall below a set
minimum • Restarts after a separate Solar panel recharges the batteries
sufficiently for the generator to create the grid. Wave form that the stimulate. grid tied inverters
TRC proprietary. Multiple patents pending
Grid tied micro grid with emergency power architecture
Master Emergency power Off grid manual transfer switch Grid
Power Meter
Breaker panels
Internet Server
Remote Web site
CAT 6 Ethernet
Grid power
4.8KW Flex-tech™
coax
30A trunk cable
4.8KW Flex-tech™ 4.8KW Flex-tech™
30A trunk cable
30A trunk cable
Battery Battery Charger
2nd Emergency Power Backup Automatic transfer switch
Diesel Generator
Start/stop Off/on
When grid voltage is low switch to off grid mode
On/off
When grid voltage is low in emergency power then switch to off grid mode
EMC Wave form Generator
Off/on
TRC proprietary. Multiple patents pending
3 Φ Grid tied micro grid with emergency power architecture
Master Emergency power Off grid manual transfer switch 3 phase
Grid Power Meter
Breaker panels
Internet Server
Remote Web site
CAT 6 Ethernet
Grid power
4.8KW Flex-tech™
coax
30A trunk cable
4.8KW Flex-tech™ 4.8KW Flex-tech™
30A trunk cable
30A trunk cable
Battery Battery Charger
2nd Emergency Power Backup Automatic transfer switch
3 phase Diesel Generator
Start/stop Off/on
When grid voltage is low switch to off grid mode
On/off
When grid voltage is low in emergency power then switch to off grid mode
EMC Wave form Generator
Off/on
Phase B Phase C
3 phase Connector
With PLCC coupling
Phase A
TRC proprietary. Multiple patents pending
Building a ground mount system
Prep the field Install electrical infrastructure
Install gravel base install the frames
Install the panels Run the cables Install the inverters and power up
Auto map the array
TRC proprietary. Multiple patents pending
Contact
Arnold Kravitz VP Marketing and Sales
4525 140th avenue N Suite 900 Clearwater, FL 33762 1800 780 4324 x 328 [email protected]
TRC proprietary. Multiple patents pending
Key MPI features • Installation:
• Modular quick-connect • Physical (75% faster install of
inverters, cables, grounds ,and activation)
• Auto-mapping of all panels/inverters in array & auto reset to quickly reconfigure (patent pending)
• Communication: Via Energy Monitor Controller (EMC)
• Granular autonomous monitoring • Real-time fault alerts to the
panel/inverter level • Data Capacity:
• 4x higher signal packet transfer capability vs a micro inverter
• Full-feature monitoring of panels • 400 inverters (1200 panels)
• Control: • Secure Remote Activation/De-
Activation – (patent pending) • Power Capacity:
• Handles 100w->300w Panels • >300watt capacity per channel; • Reduces $/watt
• Efficiency 96% • High-Heat Tolerant Ruggedized
Design: • Active Thermal Management
eliminates heat-related damage/failure;
• Fail safe self-throttle & restart • Thermal Survival mode (patent
pending
23
TRC proprietary. Multiple patents pending
Key MPI features • Intelligent fault auditing
• Self-diagnostics • 3 level detection / isolation:
• panel • inverter • System
• Maintenance: • field replacement of inverter
channel • Upgrade:
• remote upgrade of EMS and Inverter firmware
• Extend/optimize effective life of units
• Electronic Monitor Control • Tracking dashboard reporting:
• Layered reporting options. • Private web • Cloud; • Off line
• Monitoring: • real-time energy yield monitoring
• Grid types supported • Grid tie • Off grid Micro-grid • Single Phase • 3 Phase
24
TRC proprietary. Multiple patents pending
Providing the safe and controlled, generation, distribution, and storage of energy
TRC Commercial Markets • Provide:
• Safe and controlled; generation, distribution and storage of power • High reliability, and High availability products
• Market Segments
1. Mobile Power (Surge protection, Transfer switches, power and water distribution, cord sets) • Vehicle (RV, Marine, Heavy Construction Equipment, Public transport,
Amusement) • Traveling shows and events, (Carnivals, Circus, Concerts, Theater, Celebrations)
2. Electrical Safety (GFCI,ELCI,RCD, HD-Pro, distribution box, voltage booster) • Industrial ,Construction , and manufacturing, equipment and infrastructure • Amusements Safety; lighting and fountain shows • Marina power and water distribution equipment
3. Energy ( High efficiency Solar inverters, cables, connectors) • Grid tied , Emergency and off grid Solar power • 4.8KW to 200KW ( homes to commercial building s, roof top and ground mount)
• Roles • Innovative Design, Engineering, Manufacturer, Logistics, and Support
TRC proprietary. Multiple patents pending
35 Years of military micro grid dependability
TRC Military products Military Micro grid Power Control and
Monitoring components Mobile Generator Sets Components Battery Chargers Militarized Portable GFCI Complete Control Panels Power Inverters DC Power Supplies
Patco Batteries and Chargers Batteries Rechargeable Li-ION & NiMH
Battery Chargers Li-ION, NiMH, NiCd & Lead Acid
Pack Electronics Battery Charging & Management Circuitry
Complete Power Systems Standard or Customized Solutions