This letter proposes a general decentralized control of single phase cascaded inverters-power factor angle droop control. Compared to the existing strategies, it has following attractive benefits: 1) is suitable for both grid-connected and islanded modes; 2) Seamless transition between different modes can be obtained; 3) stability condition in mode independent transmission line impedance; 4) su...

Active power-sharing among distributed energy sources (DESs) is not only an important way to realize optimal operation of micro-grids, but also the key to maintaining stability for islanded operation. Due to the unique configuration of series micro-grids (SMGs), the power-sharing method adopted in an ordinary AC, DC, and hybrid AC/DC system cannot be directly applied into SMGs. Power-sharing in...

A microgrid is a cluster of interconnected distributed generators, loads and intermediate storage units that cooperate with each other to be collectively treated by the grid as a controllable load or generator. Power quality events and pre-set conditions will make the microgrid disconnect from the main grid and operate as a separate island. This paper enumerates and discusses the issues concern...

In this paper, a control strategy of voltage source inverter with LCL filter in distributed electrical energy systems both operation modes is proposed for microgrids environment. This robust considers state feedback controller based on proportional resonant using linear matrix inequalities. The able to ensure good tracking sinusoidal references and suppress low order harmonics. It allows simult...

This paper discusses dynamic stability and performance of current control scheme for parallel connection of pulse-width modulated (PWM) voltage source converters (VSCs) fed by distributed energy recourses (DERs) across the distribution level of power grid. The controller has feedback compensation and limits the current harmonics while featuring fast regulation for multi-converter system. The co...