Microgrid parallel technology

What are the control strategies for parallel inverters in the microgrid?

Control strategies for parallel inverters in the microgrid (MG) can be classified as master/slave (MS), current sharing, droop control, virtual synchronous machine (VSM)-based and virtual oscillator control (VOC) methods. The MS and current sharing methods both have the disadvantage of requiring communication networks (CN).

Can droop control improve stability of paralleled inverters in microgrid systems?

In the study conducted by 12, a PSO-based droop controller is proposed to enhance the stability of paralleled inverters in microgrid systems. A droop control method based on fuzzy logic for parallel inverters is proposed in 13.

Are topology structure methods feasible for microgrids?

The proposed topology structure methods for microgrids are feasible 10. Zhang F and Kang J analyzed the characteristics of parallel hybrid inverters using droop control in microgrids. An adaptive power allocation method is proposed to identify the imbalance between each inverter on the DC bus.

Are microgrids a good choice for distributed power generation?

In recent years, microgrid technology has been widely studied and applied. However, with times developing, the installed capacity of distributed power generation devices has been improved, and work is being carried out in increasingly complex situations, resulting in a decline in the control performance of microgrids.

What is a microgrid power grid?

Microgrid refers to a small power grid composed of small distributed power sources that can operate independently. It can be operated separately or connected to an external power grid. Microgrids can achieve local power supply, reduce dependence on external power grids, and improve power supply reliability and flexibility 1.

Does inverter control affect the power quality of microgrid 3?

The inverter is a key link in the power electronic converter, which affects the power quality of entire microgrid 3. However, conventional inverter control methods can easily lead to poor control performance in complex engineering conditions, which can have adverse effects on the power quality of microgrids.