Sales Application Engineer - Energy and Infrastructure Solutions TMEIC Corporation Roanoke, Virginia, United States
The primary purpose of this poster is to explain the flow of information and control within a collocated PV and ESS site. This can be a confusing concept for many individuals involved and uninvolved in site design and operation.
BMS constantly monitoring the state of charge of the batteries and controlling the BCS. TMEIC PPC controls the inverters production limits (PV and ESS) either directly or via the SCU. Unique to TMEIC, the SCU can control the PCS as a single power generator or as individual inverters on the one skid. This modular approach allows the individual inverters to continue to produce power if one of them faults, instead of losing for example, 4200kW that the PCS is producing you would only lose 840kW of production. SCADA receives data from inverters, capacitor banks, switch gears, GSU, BMS, PPC, utilities, etc. Based on use case of the batteries, SCADA will command the PPC to either charge or discharge the batteries when the BMS indicates the need.