Microgrid control systems
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General information
| Name of company | Inaccess |
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| Website of company | www.inaccess.com |
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| Name of product | UNITY H-PPC |
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| Product is hardware and/or software-platform | hardware & software platform |
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| Product standardized or project-specific? | standardized |
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| Distribution in which countries? | worldwide |
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| Unique selling proposition of the product | Programmable Hybrid Power Plant Controller |
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| Comments | PV, Batteries, Diesel GenSet, Li-Ion, Lead-Acid |
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Services of the company
| Company produces microgrid control hardware | yes |
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| Company programs microgrid control software | yes |
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| Company provides system integration of microgrid control hardware and software | yes |
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| Company provides EPC services for microgrid projects | no |
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| Company provides operations and maintenance of microgrids | no |
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| Comments | UNITY H-PPC is targeted to Owners, EPCs and O&Ms globally |
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Scope of control system
| Central monitoring and control unit (Hardware) | yes |
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| Control unit is standalone product or integrated into other device (if latter, which device?) | Standalone; can be also integrated into Inverter Containers |
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| Other hardware components (e.g. smart meters, sensors, switches, domestic appliances, …) | Includes optionally Meters, Networking, Comms |
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| Software-Platform for monitoring and control of the microgrid | yes |
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| Software-Platform is a cloud solution or installed on own server or computer? | both is possible |
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| Software compatible with third party hardware? | yes |
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| Hardware compatible with third party software? | yes |
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| Monitoring and/or control of microgrid via smartphone app? | yes |
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| Comments | H-PPC is integrated to UNITY-CMS (Central Cloud Monitoring) |
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Microgrid layout
| Which customers is the product aimed at? (e.g. residential, commercial, industrial, community, campus, military, …) | Oil & Gas, Utility, Industrial, Commercial, Community, Campus, Military, Large Residential |
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| Focus on offgrid, grid-connected or mobile microgrids? | All Off Grid, Grid Connected, Mobile are supported |
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| How many kilowatts of installed generating power can be integrated? (FROM - TO) | 10 KW - 100 MW |
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| How many different generators can be integrated? | unlimitted |
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| AC bus system | yes |
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| DC bus system | opt. |
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| Hybrid AC and DC bus system | opt. |
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| Which control strategy is used to run the microgrid? (e.g. central control, master/slave control, distributed control, …) | All strategies are supported through UNITY PPCs architecture: Central Control for single-site, Master/Slave or Distributed Control optionally for larger sites |
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| Which components are needed for grid forming in islanding operation? (e.g. battery, diesel generator, …) | Battery, DG can be used, depending on Site Configuration |
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| Can the system be retrofitted to existing energy system assets? | opt. |
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| Can the system be expanded modularly after initial commissioning? | opt. |
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| Comments | |
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Connectivity
| Supported communication protocols (e.g. Modbus TCP, Sunspec, KNX, Zigbee, …) | Modbus, DNP3, IEC, OPC |
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| Supported communication interfaces (e.g. RS485, Ethernet, Wireless LAN, analog inputs an outputs, …) | RS485, Ethernet, Analog/Digital Inputs/Outputs |
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| Connectable generators (e.g. solar PV, wind turbines, CHP, diesel generators, fuel cells, hydro power plants, …) | PV, Wind, CHP, DG, FuelCells, Hydro |
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| Connectable storage systems (e.g. batteries [lead, lithium, redox flow, …], flywheels, heat storage, …) | Batteries Lithium, Lead, others |
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| Connectable loads (e.g. heat pumps, heating boilers, charging stations for e-mobility, refrigerators, …) | Any |
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| What components/brands can be integrated 'plug & play'? | Most vendors available today; others at client's request |
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| What components/brands have to be integrated manually? | Any new vendor can be added at client's request |
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| How are components integrated manually? (e.g. connection boxes, command-line interface, ...) | New Configuration File, Online Spreadsheet-like config |
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| Software-Platform has graphical user interface for integration and configuration of external devices? | opt. |
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| Software-Platform has graphical user interface for programming energy management options? | opt. |
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| Communication between control system and energy system assets is wired or wireless? | wired communication |
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| SCADA integration possible? | yes |
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| Other options to connect the microgrid to a higher-level distribution grid (e.g. smart meter gateway, CLS-interface, ...) | Configurable |
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| Can smart home systems be integrated into the microgrid? | opt. |
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| Is the data encrypted during data transfer? If so, how? | Yes; end to end SSL encryption, SSL certificates & SSH Keyes deployed everywhere |
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| How is the system protected against threats from outside? | PKI infrastructure everywhere, Access based on SSH keys, Authentication SSL certificates, additionally firewalls deployed in each of the sites |
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| How are firmware updates realized? | Over secure channels |
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| Comments | |
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Functions
| Grid conntected operation | yes |
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| Islanding operation | opt. |
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| Automated transition from islanding to grid-connected mode and back | opt. |
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| Time required for transition from grid-connected to islanded mode (in seconds) | 1 second |
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| Uninterruptible Power Supply (UPS) | yes |
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| Operation is also possible without connection to the internet | in grid connected and islanding mode |
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| Operation is also possible without connection to control room of higher-level distribution system operator (DSO) | in grid connected and islanding mode |
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| Asset control of distributed energy resources | opt. |
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| Load management defining curtailable loads and priority loads | yes |
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| Automated dispatch control and optimization | opt. |
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| Automated Re-dispatching in response to external orders or unplaned internal events | opt. |
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| Internal voltage and frequency regulation in islanding mode | opt. |
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| Real time active and reactive power control | opt. |
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| Control of power exchange and voltage levels at point of interconnection | opt. |
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| Aggregated ramp rate control at point of interconnection | opt. |
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| Phase balancing between different AC phases | opt. |
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| Black start capability | opt. |
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| Comments | All options above can be supported by the modular programmable platform of H-PPC, depending on the user/system requirements |
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Energy management options
| Increase in self consumption | opt. |
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| Increase of self-sufficiency | opt. |
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| Peak Shaving | opt. |
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| Charging of electric vehicles | opt. |
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| Energy management of thermal energy assets? (e.g. heat pumps, thermal storage, ...) | opt. |
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| Backup power | opt. |
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| Zero feed-in | opt. |
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| Ancillary services for public grid (e.g. frequency regulation, reactive power control, …) | Yes; such as P(f) (FR), Q(V), AVR, Cos(Phi) |
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| Consideration of weather forecasts | opt. |
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| Consideration of energy load predictions | opt. |
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| Consideration of changing energy prices on the energy market | opt. |
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| Use of AI or self-lernings algorithms | opt. |
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| Blockchain based billing and/or pay as you go solution | no |
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| Participation in the energy market | opt. |
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| Comments | All options above except Blockchain can be supported by the modular programmable platform of H-PPC, depending on the user/system requirements |
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Price indication
| Hardware: One-time acquisition costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | From 50000 EUR onwards, depending on site size, MW/MWh, N of Controlled Devices, Strategies |
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| Hardware: Monthly maintenance costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | From 1KEUR/Month; Depending on the SLA (8*5, 24*7, ...), Response Time, Supported Functions |
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| Hardware: Costs for other necessary system components? (e.g. smart meters, switches, …) | Few KEUR for various meters; Network Switches are part of the main solution |
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| Software: One-time acquisition costs (without VAT) FROM - TO (approx. retail price in Euro) | Included in the Main System price |
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| Software: Monthly maintenance costs (without VAT) FROM - TO (approx. retail price in Euro) | Included in the Main System price |
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| Are there renting or leasing options? If so, what are those options? | optionally a partner can license SW-only, only on specific, approved Hardware configurations |
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| Comments | Pricing assumes an Upfront (System cost) as above, plus a Yearly Fee that is a fraction of the Upfront |
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| Price information available | yes |
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Best practice project
| Information on reference projects available | yes |
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| Best practice project - ongrid | On-Grid University & Hospital Campus, with PV, Batteries, Diesel GenSets |
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| Best practice project - offgrid | Off Grid Oil rig in the desert, with Grid Forming capabilities, and a set of PV, Batteries, Diesel Gensets |
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Data update
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