decentralized control strategies are popular candidates in microgrids control because of their reliability and performance. conventionally, droop control (as a main decentralized strategy) is been utilized in order to prevent permanent droop of voltage and frequency after change in loads and also to share generated power between distributed generation units. in this paper, a new droop control s...

Distributed generations can be divided into traditional synchronous generators and inverter interfaced distributed (IIDG) according to their different operation mode. While the fault characteristics of IIDG is from Generators, in-depth analysis on output are foundation micro grid protection. The mathematical models under P/Q V/F control strategy discussed. After simplifying its model, studied u...

Because of the special fault-current characteristics of the inverter-interfaced distribution generator (IIDG) , the conventional fault-analysis method based on the synchronous generator cannot be used for the power grid with IIDGs. The paper points out the problems of using the conventional fault-analysis method for the power grid with IIDGs and proposes a novel fault-analysis method for the po...

Abstract A large number of distributed generators access to low resistance grounding system may have great influence on the fault characteristics single phase ground. In view ground active distribution network, connection mode Inverter-interfaced Distributed Generators (IIDG) is discussed comprehensively based operation safety and protection requirements. The equivalent model IIDG simplified ze...

Decentralized Generation (DG) is expected to play a vital role in the future of electric power system. The power electronics interfaced microturbine generation systems are currently attracting lot of attention to meet different needs both at end consumers and the distribution utility levels. Dynamic modelling of the microturbine is a challenging process because manufacturers do not readily prov...

Abstract There are various types of distributed generators (DGs) with different grid integration strategies. The transient characteristics the fault currents provided by DGs to those conventional synchronous generators. In this paper, a distribution network multi-type is investigated, including consideration DG low-voltage ride through (LVRT). current two typical DGs, i.e. an inverter-interface...

This paper presents a new multi-objective control strategy for inverter-interfaced distributed generation (IIDG) to ensure its safe and continuous operation under unbalanced voltage sags. The proposed can effectively improve the low ride through (LVRT) capability, reduce active power oscillations, limit overcurrent simultaneously, which are marked as most important objectives of IIDG during adv...

This paper describes an inverter-interfaced distributed generation system that is interconnected with the electric power system. This system has two main goals: to serve customers with reliable electric power and to improve power quality. This system is interfaced through inverters because they are effective to control output voltage and current. Because DGs are interconnected with the electric...