Paramaribo energy storage bidirectional inverter

What is a bidirectional inverter stage?

The inverter stage is bidirectional, enabling power conversion from DC stage to AC stage and vice versa. The topology is constituted by an H-Bridge with each group of diagonal switches operating at high frequency during one half-wave of output voltage.

What are the benefits of using bi-directional converters?

Bi-directional converters reduce peak demand tariff, reduce load transients, and provide V2G capabilities with quick power transfer direction changes. They also offer high efficiency (>97%) at power levels up to 22KW. These converters use the same power stage to transfer power in either direction in a power system.

What is a bi-directional converter?

Bi-directional converters use the same power stage to transfer power in either direction in a power system. This helps reduce peak demand tariff, reduces load transients, and enables quick changes in the direction of power transfer. They have high efficiency, up to 97% at power levels up to 22KW.

Why are energy storage converters important in a micro-grid system?

In a micro-grid system composed of multiple energy sources, energy storage converters are the core equipment, because renewable energy sources such as photovoltaics and wind power are volatile, and loads are also volatile, and fuel-fired generators can only generate electricity and cannot absorb electricity.

What is a hybrid string inverter?

With the additional possibility of energy storage via batteries, hybrid string inverters provide a good outlet to maximize the power utilization of the string input, and also provide an alternate pathway to supply the grid during night or low irradiation scenarios.

What is the output power of 230vrms grid?

With the signle-phase 230VRMS grid, an output power of 4.6kW can be achieved with an output current of 20ARMS. The EMI filter is composed of a boost inductor split between both rails for better common-mode rejection capability, two common-mode chokes, Cx capacitors, and Cy capacitors.