The system integrates a photovoltaic (PV) module with Maximum Power Point Tracking (MPPT), a single-phase grid inverter, and a battery energy storage system (BESS), all using wide band gap GaN devices for high power density and efficiency.
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This white paper presents a hybrid energy storage system designed to enhance power reliability and address future energy demands. It proposes a hybrid inverter suitable for both on-grid and off-grid systems, allowing consumers to choose between Intermediate bus and Multiport architectures while minimizing grid impact.
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 a KSTAR hybrid solar system?
Chinese inverter manufacturer KSTAR has introduced its new 'All-In-One' single-phase storage solution', the BluE-S-5000D series, which combines KSTAR inverters with a CATL battery solution. The latest KSTAR hybrid solar system provides power continuously, without any interruption, as the powerful CATL batteries store the energy.
How does a hybrid solar system work?
The latest KSTAR hybrid solar system provides power continuously, without any interruption, as the powerful CATL batteries store the energy. Traditional hybrid electricity generators typically use diesel or petrol for fuel. To protect the environment, hybrid inverter systems offer the best solution.
What is a hybrid inverter system?
Traditional hybrid electricity generators typically use diesel or petrol for fuel. To protect the environment, hybrid inverter systems offer the best solution. However, for such systems the battery quality is very important to guarantee safety and reliability.
This reference design is intended to show an implementation of a two-channel single-phase string inverter with fully bidirectional power flow to combine PV input functionality with BESS supporting a wide range of battery voltages. This system consists of two boards that are split by different functionality.