Use of energy storage bidirectional converter

What are the applications of bidirectional energy transfer (BDC)?

ty of bidirectional energy transfer between two dc buses. Apart from traditional application in dc motor drives, new applications of BDC include energy storage in renewable energy systems, fuel cell energy systems, hybrid electri

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.

What is a bidirectional DC–DC converter?

In addition, to realize energy recovery, the bidirectional DC–DC converter is required between the power battery or SC and vehicle bus to realize the flow of feedback energy. Therefore, the bidirectional DC–DC converter is the key component of HESS. It determines the performance of HESS and further affects the performance of the powertrain of NEV.

What is the maximum power transfer in a bidirectional converter?

ration, the maximum power transfer is at |φ|=90 degrees. So the converter full range of bidirectional power transfer can be gained by controlling phase shift in -90 to +90 range. To decrease the current stress and increase the efficiency of converter the amount of reactive

What are the problems with bidirectional DC–DC conversion systems for NEV powertrain?

The main issues about bidirectional DC–DC conversion systems for NEV powertrain are as follows: With continuously improved bus voltage levels (400 V promoted to 800 V ) of powertrain, a bidirectional DC–DC converter is required to continuously improve the voltage conversion ratio to match the SC (or power battery) and vehicle bus voltages.