ENERGY STORAGE SYSTEM
Merus ESS – Energy Storage Systems from utility scale applications to island mode micro grids.
MERUS ENERGY STORAGE SYSTEM FOR APPLICATIONS IN RENEWABLES, T&D, ISLAND, HYBRID & MICROGRID
Merus ESS systems can be placed at any level of an electrical system to increase operational performance and reliability.
Not only do they enable smoother integration of renewable energy sources, but they also help balance electricity supply and demand.
With Merus ESS, energy is available in real time when primary power sources have been interrupted.
The solution provides benefis for the entire power system, from generation, transmission and distribution to micro grid operators, all the way to end consumers.
GENERATION – WIND, SOLAR AND ENGINE-HYBRID POWER PLANTS
- Peak shaving
- Ramp rate management
- Energy shifting
- Power dispatch management
INTEGRATED MERUS ESS EASE OF INTEGRATION OF RENEWABLES WITH MODULAR DESIGN AND IMPROVED POWER QUALITY
TRANSMISSION AND DISTRIBUTION GRIDS
- Spinning reserve
- Frequency regulation
- Power flw optimization
- System stability improvement
- Voltage control
INDUSTRIAL AND NATURAL ISLAND GRIDS, MICROGRIDS AND HYBRID SYSTEMS
- Energy management for alternative sources including solar, wind and fossil fuel power plants
- Black start functionality
- Peak shaving
- Power quality compliance
- Voltage and frequency control
Merus Power Conversion System (PCS)
Merus bidirectional state-of-the-art converters use 3-level NPC topology to enable low loss operation, high DC voltage and the best power quality performance thanks to optimized switching frequency.
DC voltage is available with a wide range spanning 600 – 4000Vdc. Bidirectional modules in various sizes are available starting from 50kVA up to 2000kVA, enabling the most cost-effiient solution for each customer-specifi project up to hundreds of MWh, or even larger scales.
Battery Energy Storage
The battery energy system consists of battery modules connected in series to meet the required direct voltage level, typically 600-1500Vdc. The racks are connected in
parallel to meet the needed energy capacity.
One group of series-connected battery modules form the storage rack. Each rack can have its own battery management system (rack BMS) to manage the state of charge (SOC), state of health (SOH), voltage, current and temperature of each level of battery modules in the rack, as well as the control and protection.
Merus MCC controller for any applications
Merus MCC controller measures system voltages and currents and calculates the required PCS current based on measurements, active operation modes and battery status. It transmits reference current to PCS modules via a fier optic link enabling real time ESS output control.
Merus MCC controller uses modern compatible communication systems to send and receive status and operation mode settings with higher level operators such as a transmission system operator (TSO).
Merus MCC provides energy management for alternative alternative sources including solar, wind and fossil fuel power plants. The fuel saving concept for micro grid operation optimization is provided.
Merus ESS has a black start functionality, meaning it has the capability to form a standalone island mode grid, to which other power sources can be syncronized. On-line monitoring and maintenance are available via an internet service provider.
UNIQUE OPERATION MODES SUPERIOR FLEXIBILITY
Merus ESS state-of-the-art control and converter technologies enable real time ESS output control, providing
unique operation features. Throughout its entire lifetime, the solution can operate in one or more of the operation modes shown in the matrix below within the range of installed energy and power capacity. With
suffiient capacity of the energy storage media, Merus ESS can operate in one or any combination of the operation modes shown in matrix below.
THE MOST COMMONLY APPLIED OPERATION MODES
MERUS ESS is capable of both charging and discharging, at the power level or levels, within the installed capacity or according to the preset operation mode combinations.
MERUS ESS can provide autonomous real-time frequency regulation based on the frequency measured from the Host Utility’s electric system The frequency regulation mode can be used simultaneously with any other operation mode as shown in the matrix.
In the peak shaving operation mode, Merus ESS is controlled to reduce peak power demand from the Host Utility feeder to which Merus ESS is connected. Merus ESS can be discharged at any power level within its capacity.
MERUS ESS performs autonomous real-time peak shaving based on the measured active power from the Host Utility’s electric system. The peak shaving mode can be used simultaneously with any other operation mode as shown in the matrix.
INTERMITTED POWER RESOURCE SUPPORT – MICROGRID
Merus ESS can be used as one of the main components of a microgrid. The solution has its own microgrid controller which can operate in grid-connected and island modes. The energy management philosophy is defied by the type and capacity of the integrated power generation.
A typical microgrid may include a combination of solar and diesel power, supplemented by the ESS, as well as various types of loads. These types of microgrids are usually controlled with economic optimization in mind. I.e. The priority may then be to minimize the operation hours of the diesel power plant, resulting in savings in fueland wear and tear costs.
The aim may also be to maximize the use of low cost energy provided by a solar plant.
MERUS ESS – UPQ
ENERGY STORAGE WITH UNINTERRUPTED POWER QUALITY SUPPLY
Merus ESS-UPQ is a unique solution that combines the benefis of various power quality systems in a single robust system. Among the other ESS features, Merus ESS – UPQ protects your grid against power interruptions, voltage sags and swells caused by upstream public grid.
Merus ESS-UPQ can seamlessly decouple the microgrid from grid-connected operation to islanded operation in case of a fault and reconnect to the grid automatically when the fault is cleared. Merus ESS-UPQ ensures the power quality in the microgrid in either operation mode.
FOR SPECIFIC CUSTOMER NEEDS
Merus ESS can be tailored to meet customer needs by choosing the storage type based on the intended usage. For example, peak shaving may occasionally require high power, whereas intermitted power resource support may require small power for a long period of time. If both operation modes are required in the same ESS, system design must be flxible. Merus ESS can be tailored to meet specifi needs and designed with different energy storage media.
Merus ESS – type 1: Storage, PCS and transformer integrated in container
Merus ESS – type 2: Storage and PCS integrated in container. Outdoor power transformer for utility
Merus ESS – type 3: Storage and PCS integrated in separate containers. Outdoor power transformer for utility.
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Merus Power offers world-leading clean technology to improve power quality, energy effiiency and environmental performance. Our dynamic compensation
solutions- active harmonic fiters, UPQs, STATCOMs and SVCs – solve your power quality problems in no time. You will enjoy a swift payback on your investment:
our solutions save energy, increase productivity and lifetime of the facility. We also offer a service portfolio which spans the whole product lifecycle from power quality surveys to after sales services. We provide our clients with world-class products, reliable Finnish technology, dependable and flxible service and true co-operation.
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