Reliability evaluation of Microgrid with PV-WG hybrid system

Abstract

This paper presents a research method of reliability of Microgrid. Firstly, according to different features between the traditional power sources and distributed power supply, the models of power generation reliability evaluation including wind power and solar power are established. Secondly, on the basis of the different operation modes and the importance of the loads, the reliability evaluation index of the sensitive load and nonsensitive load in Microgrid are identified in the condition of their component failure, the external power failure, the micro-source fault as well as in case of lack of micro-source and so on when the Microgrid connected to the great power network or running isolated. Finally, a case of a typical Microgrid system is exhibited. The effectiveness and feasibility of the transactions and optimization model are also overall demonstrated by this simulation.

Optimization of an Autonomous Hybrid Renewable Energy System Using Reformed Electric System Cascade Analysis

“…Where, is the hourly energy generation of the WECS in Wh, k is the Weibull shape parameter which is assumed to be one, thereby making the increase in power from vc to vr linear [33]. The total hourly energy generation of the HRES at the AC bus can be calculated by (3):…”

Reliability analysis of distribution systems with hybrid renewable energy and demand side management

“…Practically speaking, the power output of a wind turbine depends mainly on the speed of the wind and which can be expressed by the following sub-functions [7]:…”

“…is the simulated solar irradiation in (W/m 2 ) is the solar irradiation for the STC = 1000 W/m 2 [7]. In this study, the maximum test power ( ) will be equal to 1 p.u.…”

Hybrid AC/DC microgrids flexible reliability index by using the axiomatic design concept

“…Reliability analysis for a hybrid microgrid has been investigated in the literature [6–10]. The reliability model of a microgrid including wind farms and solar plants is calculated using traditional reliability indices such as failure rate, average fault outage time, and average annual outage time in [6]. The authors in [7] have proposed a hierarchical reliability modelling method for the microgrid using the reliability block diagram (RBD).…”