Micro-Grid, also translated as microgrid, refers to a small power generation and distribution system composed of distributed generation, energy storage device, energy conversion device, load, monitoring and protection device, which can be divided into AC microgrid, DC microgrid and AC/DC hybrid microgrid. Based on the application requirements of unreliable power supply in remote areas and on-grid/off-grid demonstration of universities/enterprises, CYG ET has formed targeted microgrid overall solutions and related products, which can effectively improve the reliability of power supply and the stability of microgrid.
Microgrid System Solution
1. Off-grid microgrid: It is mainly used in remote areas, islands and other areas where the power grid is not covered or the power grid is extremely unstable. The off-grid microgrid system is mainly applied overseas; ，
2. On-grid/off-grid microgrid: mainly for demonstration applications in universities, government agencies and enterprises.
2. On-grid/off-grid microgrid: mainly for demonstration applications in universities, government agencies and enterprises.
Overview
Features
01
It has the control technology of balancing the fluctuation of multi-power generation and ensuring the stability of load power supply, and can improve the utilization rate of renewable energy and reduce oil consumption on the basis of ensuring the reliability of power supply
02
Fast on-grid/off-grid switching control technology. Engineering practice: the on-grid/off-grid seamless switching time is less than 10ms, and the standard requirement is no more than 20ms
03
It has the voltage source control technology of energy storage inverter, and multiple voltage sources can run in parallel based on the improved virtual impedance droop control algorithm
04
Based on the mature shelf technology of CYG ET's protection and control platform, the maturity and reliability of the platform have been fully verified based on the operation experience of the protection and control devices in thousands of intelligent substations, which can effectively ensure the stability of microgrid system operation