Microgrid control systems
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General information
| Name of company | S&C Electric Company |
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| Website of company | www.sandc.com |
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| Name of product | GridMaster |
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| Product is hardware and/or software-platform | hardware & software platform |
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| Product standardized or project-specific? | project-specific |
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| Distribution in which countries? | worldwide |
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| Unique selling proposition of the product | Designed for Microgrids, Evolving Code, Embedded Cybersecurity, Distributed Control |
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| Comments | |
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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 | yes |
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| Company provides operations and maintenance of microgrids | yes |
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| Comments | |
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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 |
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| Other hardware components (e.g. smart meters, sensors, switches, domestic appliances, …) | |
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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? | installed on own server or computer |
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| Software compatible with third party hardware? | opt. |
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| Hardware compatible with third party software? | opt. |
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| Monitoring and/or control of microgrid via smartphone app? | no |
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| Comments | |
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Microgrid layout
| Which customers is the product aimed at? (e.g. residential, commercial, industrial, community, campus, military, …) | industrial, community, campus, military, utility |
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| Focus on offgrid, grid-connected or mobile microgrids? | offgrid, grid-connected and mobile |
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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? | unlimited |
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| AC bus system | yes |
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| DC bus system | yes |
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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, …) | distrubted control |
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| Which components are needed for grid forming in islanding operation? (e.g. battery, diesel generator, …) | |
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| Can the system be retrofitted to existing energy system assets? | yes |
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| Can the system be expanded modularly after initial commissioning? | yes |
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| Comments | |
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Connectivity
| Supported communication protocols (e.g. Modbus TCP, Sunspec, KNX, Zigbee, …) | The GridMaster communicates using standard protocols, including Modbus, DNP3, CANbus, and JSON. |
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| Supported communication interfaces (e.g. RS485, Ethernet, Wireless LAN, analog inputs an outputs, …) | Communications can be made over the network using TCP or UDP and over direct serial communications
using RS232, RS485, or any custom protocol. |
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| Connectable generators (e.g. solar PV, wind turbines, CHP, diesel generators, fuel cells, hydro power plants, …) | PV, Wind, CHP, Diesel, Fuel Cell |
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| Connectable storage systems (e.g. batteries [lead, lithium, redox flow, …], flywheels, heat storage, …) | Battery and Flywheel |
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| Connectable loads (e.g. heat pumps, heating boilers, charging stations for e-mobility, refrigerators, …) | Building automation systems |
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| What components/brands can be integrated 'plug & play'? | Depends on architecture |
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| What components/brands have to be integrated manually? | Generation assets |
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| How are components integrated manually? (e.g. connection boxes, command-line interface, ...) | Networking equipment |
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| Software-Platform has graphical user interface for integration and configuration of external devices? | yes |
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| Software-Platform has graphical user interface for programming energy management options? | yes |
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| Communication between control system and energy system assets is wired or wireless? | both |
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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, ...) | Economic optimization from third party markets, weather |
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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? | encrypted using 256-bit SSL |
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| How is the system protected against threats from outside? | All data in motion is also encrypted and the operating system on each IPC is “hardened” according to the latest Secure Technology Implementation Guidelines provided by the Department of Defense |
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| How are firmware updates realized? | Patch |
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| Comments | |
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Functions
| Grid conntected operation | yes |
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| Islanding operation | yes |
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| Automated transition from islanding to grid-connected mode and back | yes |
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| Time required for transition from grid-connected to islanded mode (in seconds) | Seconds |
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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 | yes |
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| Load management defining curtailable loads and priority loads | yes |
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| Automated dispatch control and optimization | yes |
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| Automated Re-dispatching in response to external orders or unplaned internal events | yes |
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| Internal voltage and frequency regulation in islanding mode | yes |
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| Real time active and reactive power control | yes |
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| Control of power exchange and voltage levels at point of interconnection | yes |
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| Aggregated ramp rate control at point of interconnection | yes |
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| Phase balancing between different AC phases | yes |
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| Black start capability | yes |
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| Comments | |
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Energy management options
| Increase in self consumption | yes |
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| Increase of self-sufficiency | yes |
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| Peak Shaving | yes |
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| Charging of electric vehicles | yes |
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| Energy management of thermal energy assets? (e.g. heat pumps, thermal storage, ...) | yes |
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| Backup power | yes |
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| Zero feed-in | yes |
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| Ancillary services for public grid (e.g. frequency regulation, reactive power control, …) | frequency regulation, reactive power, demand charge management |
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| Consideration of weather forecasts | yes |
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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 | yes |
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| Blockchain based billing and/or pay as you go solution | no |
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| Participation in the energy market | yes |
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| Comments | |
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Price indication
| Hardware: One-time acquisition costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | 250000 - 700000 |
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| Hardware: Monthly maintenance costs for central control unit (without VAT) FROM - TO (approx. retail price in Euro) | 2500 (depends on geographic location) |
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| Hardware: Costs for other necessary system components? (e.g. smart meters, switches, …) | Included with hardware |
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| Software: One-time acquisition costs (without VAT) FROM - TO (approx. retail price in Euro) | Included with hardware |
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| Software: Monthly maintenance costs (without VAT) FROM - TO (approx. retail price in Euro) | Included with hardware |
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| Are there renting or leasing options? If so, what are those options? | no |
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| Comments | |
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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 | S&C designed and built the Ameren Technology Applications Center (TAC) microgrid, which is one of the few microgrids in the world that operates at utility-scale voltages, between 4 kV and 34.5 kV, and has multiple levels of control. It is also the first investor-owned utility microgrid to island customers on an active feeder. The microgrid utilizes two 500 kW natural gas generators, a 125 kW solar photovoltaic (PV) array, a 50 kW wind turbine, and a 250 kW PureWave® Storage Management System (SMS), totaling approximately 1.4 MW in generation. The microgrid assets are managed by S&C's IPERC GridMaster microgrid controller. The microgrid is capable of operating in a variety of use cases including grid-tied, islanded, frequency control, demand response, peak load shaving and storm preparedness. |
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| Best practice project - offgrid | S&C is providing EPC services for the design and build of a microgrid for an offgrid industrial site in Oahu, Hawaii. The microgrid will serve the various loads and integrate multiple distributed generation sources including roof top solar arrays, diesel generators and a battery energy storage system. The 500 kW/1 MWh ESS is comprised of an S&C PureWave® SMS-250 and an LG Chem lithium-ion battery system. S&C IPERC is providing the GridMaster® Microgrid Control System to complete the 100% islanded microgrid site maximizing renewable assets and minimizing diesel fuel consumption. The microgrid incorporates 2.0 MW of generation provided by 500 kW generators, 500 kW of energy storage, and 1.0 MW of solar power. |
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Data update
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