Static inverter energy storage

Why do energy storage cabinets use STS?

STS can complete power switching within milliseconds to ensure the continuity and reliability of power supply. In the design of energy storage cabinets, STS is usually used in the following scenarios: Power switching: When the power grid loses power or fails, quickly switch to the energy storage system to provide power.

What is static transfer switch (STS)?

2.4 Static Transfer Switch (STS) Static Transfer Switch (STS) is used to achieve rapid switching of power when the energy storage system fails or the load demand fluctuates. STS can complete power switching within milliseconds to ensure the continuity and reliability of power supply.

What type of inverter does a commercial PV system use?

Large commercial PV and utility installations can use a single, central, three-phase inverter. The central approach is used mainly for remote large-scale installations above about 10 MW, where high power can be efficiently transformed and fed directly into a transmission grid.

What type of power does a string inverter generate?

String inverters used in residential, commercial and utility-scale installations will generate single- or alternatively three-phase AC power at higher levels. Panel voltages may be 600 V followed by a DC-DC boost converter to provide a DC link for a single-phase inverter.

What is a 30kW photovoltaic storage integrated machine?

Among them, the 30KW photovoltaic storage integrated machine has a DC voltage of 200~850V, supports MPPT, STS, PCS functions, supports diesel generator access, supports wind power, photovoltaic, and diesel power generation access, and is comparable to Deye Machinery. The Energy Management System (EMS) is the "brain" of the energy storage cabinet.

What are the disadvantages of a central inverter?

Below 10 MW, the disadvantages of a central inverter compared with string inverters are inflexibility, higher initial capital costs and lack of incremental scalability. A central inverter also risks supply continuity, as it is a single point of failure, so there is a trend towards distributed inverter systems with associated energy storage.