POWER ELECTRONICS 21 FREEMAQ PCSM FREEMAQ MULTI PCSM UTILITY SCALE MV BATTERY INVERTER POWER CONVERSION SYSTEM FRU FIELD REPLACEABLE UNITS MODULAR DESIGN UP TO 3 INDEPENDENT BESS INPUTS THE INNOVATIVE MEDIUM VOLTAGE CENTRAL STRING ICOOL 3 BATTERY INVERTER 4 QUADRANT The Power Electronics PCSM medium voltage battery inverter is designed for utility scale storage applications, that require the advantages of a central inverter solution but also the modularity of a string architecture. The PCSM can reach 3 LEVEL TOPOLOGY up to a nominal power of 3.6 MVA and it is compatible with all battery technology and manufacturers. It also has the added advantage of having an integrated medium voltage NEMA 3R transformer and switchgear. The MULTI PCSM can support two or three independent battery systems and optimize the storage facility. Power Electronics converters have been designed to be the lowest LCOE solution in the market for storage applications. The Power Electronics Freemaq PCSM offers proven hardwa- re to meet storage and grid support challenges.The energy production industry is embracing renewable energy sources. However, high penetration creates power transmission instability challenges, thus Grid Operators require stringent dynamic and static grid support features for solar inverters and Power Conversion Systems (PCS). The converters can perform grid support functions such as: Peak Shaving, Ramp Rate Control, Frequency Regulation, Load Leveling and Voltage Regulation, controlled by a Power Plant Controller or SCADA. The Freemaq PCSM stations are turn-key solutions ready for connection to the battery contai- ner and MV power distribution wiring. Units are designed for concrete pads or piers. POWER ELECTRONICS REAL TURN-KEY SOLUTION - EASY TO SERVICE With the PCSM, Power Electronics offers a real turn-key By providing full front access the PCSM series simplifies solution, including the MV transformer and switchgear fully the maintenance tasks, reducing the MTTR (and achieving assembled and tested at the factory. The PCSM is a compact a lower OPEX). The total access allows a fast swap of the turn-key solution that will reduce site design, installation FRUs without the need of qualified technical personnel. and connection costs, and therefore will minimize the LCOE. MV MV STRING INVERTER DC SWITCHGEAR TRANSFORMER CABINETS RECOMBINER STRING CONCEPT POWER STAGES The Freemaq PCSM combines the advantages of a central inverter with the modularity of the string inverters. Its power stages are designed to be easily replaceable on the field without the need of advanced technical service personnel, providing a safe, reliable and fast Plug&Play assembly system. Following the modular philosophy of the Freemaq series, the unit is composed of 6 FRUs (field replaceable units). FREEMAQ PCSM & MULTI PCSM 23 INNOVATIVE COOLING SYSTEM Based on more than 3 years of experience with our MV some dust filters or having to use liquid-cooling systems, Variable Speed Drive, the iCOOL3 system allows to get avoiding the commonly known inconveniences of it (complex NEMA 3R degree of protection in an outdoor converter. maintenance, risk of leaks, higher number of components…), iCOOL3 delivers a constant stream of clean air to the FRUs, therefore resulting in an OPEX cost reduction and a LCOE being the most effective way of reaching up to NEMA 3R improvement. degree of protection, without having to maintain cumber- ACTIVE HEATING When the unit is not actively exporting/importing power, This autonomous heating system is the most efficient and the inverter can import a small amount of power to keep the homogeneous way to prevent condensation, increasing the inverter internal ambient temperature above -20°C, without inverters availability and reducing the maintenance. PATENTED using external resistors. POWER ELECTRONICS MULTILEVEL TOPOLOGY The multilevel IGBT topology is the most efficient approach Freemaq PCSM design is the result of our experience with to manage high DC link voltages and makes the difference 3 level topologies. The 3 level IGBT topology reduces stage in the 1500 Vdc design. Power Electronics has many years losses, increases inverter efficiency and minimizes total of power design in both inverters and MV drives and the harmonic distortion. High efficiency to deliver the lowest LCOE. TWO-LEVELTWO-LEVEL INVERTERINVERTER THREE-LEVELTHREE-LEVEL INVERTERINVERTER VOLTAE V) VOLTAE V) VOLTAE V) VOLTAE V) VOLTAE OTHER INVERTER TIETIE POWER ELECTRONICS SOLUTION TIETIE EASY TO MONITOR The Freesun app is the easiest way to monitor the status of our inverters. All our inverters come with built-in wifi, allowing remote connectivity to any smart device for detailed updates and information without the need to open cabinet doors. The app user friendly interface allows quick and easy access to critical information (energy registers, production and events). AVAILABLE INFORMATION Grid and DC side data. Inverter and Power module data (Vol- tages, currents, power, temperatures, I/O status...). Weather conditions. Alarms and warnings events. Energy registers. Others. FEATURES Easy Wireless connection. Comprehensive interface. Real time data. Save and copy settings. LANGUAGE English, Spanish. SYSTEM REQUIREMENTS iOS or Android devices. SETTINGS CONTROL Yes FREEMAQ PCSM & MULTI PCSM 25 DYNAMIC GRID SUPPORT Freemaq PCSM firmware includes the latest utility interactive features (LVRT, OVRT, FRS, FRT, Anti-islanding, active and reactive power curtailment…), and can be configured to meet specific utility requirements. LL OLTAE RIE TRO COPATIILITY P INERTER LO LL1.4 OLTAE RIE TRO COPATIILITY 100% P INERTER LO 1.4 100% 1.2 1.2 1 1 p.u. OLTAE p.u. 0.8 p.u. OLTAE p.u. 0.8 0.6 50% 0.6 50% 0.4 0.4 0.2 0.2 0 0 -1 0 1 2 3 4 -1 0 1 2 3 4SECONS 50Hz 52Hz PO3 EW PREP CEISECONS ECO 50Hz REENC 52Hz PO3 EW PREP CEI ECO REENC Low Voltage Ride Through (LVRT or ZVRT). Inverters can withstand any Frequency Regulation System (FRS). Frequency droop algorithm curtails the voltage dip or profile required by the local utility. In this situation, the inverter active power along a preset characteristic curve supporting grid stabilization. can inject current up to the nominal value. Q(U) EPLE EPLE Q(U) 1.2 1.2 1.11 1.11 Qmax(cap) OLTE OLTE Q(max) Qmax(ind) 1.1 1.1 STEP STEP 1.105 1.105 Q(max) 1 1 1.1 1.1 0.9 OLTE 0.9 OLTE 1.095 1.095 STEP STEP 0.8 0.8 1.09 1.09 0.7 0.7 1.085 1.085 U 0.6 0.6 1.08 1.08 U 0.5 0.5 1.075 1.075 Voltage 0.4 0.4 1.07 Voltage 1.07 0.3 0.3 1.065 1.065 0.2 PP0.2 PP 1.06 1.06 Active Ractive Power Ractive Active Active Ractive Power Ractive Active 0.1 0.1 1.055 1.055 Qmax(ind) Qmax(cap) -Q(max) 0 0 PP 1.05 PP 1.05 -Q(max) -0.1 -0.1 1.045 1.045 1 125 2501 375125 500250 625375 750500 875625 1000750 875 1000 T T Q P QV P V Q(V) curve. It is a dynamic voltage control function which provides reactive power in order to maintain the voltage as close as possible to its nominal value. ISLNIN CONITION ST SLOW T Grid REENC z) REENC POI Utility Inverter breaker TIE SLOW R L C Loads ST Frequency Ride Through (FRT). Freesun solar inverters have flexible frequency Anti-islanding. This protection combines passive and active detection protection settings and can be easilyISLNIN adjusted CONITION to comply with future requirements. methods that eliminate nuisance tripping and allow to comply with the IEC 62116 and IEEE 1547 standards. T Grid POI Utility P Freesun breaker inverter R L C Loads POWER ELECTRONICS ENERGY STORAGE APPLICATIONS LOAD LEVELING Freemaq PCSM series are able to store energy during STORAGE BATTERY SYSTEM periods of low demand from the grid, in order to later supply STORAGE BATTERY SYSTEM Peak hours this energy when there is a higher demand. This has the bene- Peak hours P(kW) POWER STORAGE BATTERY SYSTEM fit of selling the energy at a higher market price during peak P(kW) POWER Discharging periods. It also allows grid operatorsPeak to supply hours electricity with Discharging P(kW) a higher renewablePOWER origin. Since PV generation may not be at the same time as peak demand,Discharging this facilitates the flexibility Charging Charging and integration of renewable generation into the grid. Charging Charging TIME TIME System load Storage battery system Charging PV power available Inverter power limit Charging Charging TIME TIME System load Storage battery system Charging PV power available Inverter power limit TIME TIME RENEWABLE INTEGRATION System load Storage battery system Charging PV power available Inverter power limit kW 2000 The Freemaq PCSM series attenuates the intermittent nature 1800 2000 kW 1600 f(Hz) 1800 of renewable energy sources, to provide a smoother power 1400 50.04 1600 f(Hz) 1200 1400 50.04 output. The Freemaq PCSM2000 controls the ramp rate at which 1000 kW 1200 50.02 1800 800 1000 power is injected into the1600 grid, and thus reduces the impact of f(Hz) 600 800 50.02 1400 50.04 400 600 50.00 rapid power fluctuations1200 due to sudden or transient conditions 200 400 1000 0 50.00 200 experienced by the PV 800array. The system monitors the PV 50.02 -200 TIME 49.98 0 600 -400 -200 TIME 49.98 inverter output to inject400 or consume power accordingly to -600 50.00 -400 200 -800 -600 ensure the output remains0 within the ramp requirements. -800 TIME -200 TIME 49.98 Solar Production (kW) Battery Discharge (kWh) Charging Discharging Grid load -400 Active Power at POI (kW) Battery Charge (kWh) TIME Solar Production (kW) Battery Discharge (kWh) -600 Charging Discharging Active Power at POI (kW) Battery Charge (kWh) Grid load -800 TIME Solar Production (kW) Battery Discharge (kWh) Charging Discharging Active Power at POI (kW) Battery Charge (kWh) Grid load PEAK POWER SHAVING Charging Charging Charging Maximum power contracted by OUTPUT By delivering stored energy to the grid during periods of high OUTPUT Charging Maximumthe customer power Discharging contracted by OUTPUT OUTPUT Discharging demand, it reduces the burden Chargingon the distribution network and the customer Charging Maximum power increases significantly its efficiency.