Operation of microgrids with demand side bidding and continuity of supply for critical loads

Abstract

SUMMARYThis paper aims to present a detailed analysis on the impact that demand side bidding (DSB) has on microgrids operation, taking into account variations in market prices, RES production, and seasonal demand for a typical LV network. Additionally, the economic impact of applying adequacy constraints, i.e. request specific part of the microgrid demand to be supplied by local power production, in case of intentional islanding, is estimated. This is essential to achieve seamless transition from interconnected to autonomous operation of microgrids. Two cases are examined: adequacy constraint applied to the whole microgrid demand and only to the critical loads. Moreover, the magnitude and frequency of interruption of critical and noncritical loads, in case of an upstream network fault is calculated. The potential of DSB to reduce operating costs improving at the same time the quality of service to the loads of higher priority is shown.

Demand response in the day-ahead operation of an isolated microgrid in the presence of uncertainty of wind power

“…It is assumed that all of the generating units work at unity power factor and no reactive power is generated or absorbed. The purchased energy costs from the wind units is assumed to be zero, reflecting their operating costs [21,22]. Other characteristics of the generating units are listed in Tables 1 and 2.…”

An efficient two stage stochastic optimal energy and reserve management in a microgrid

“…Moreover, these methods wait for measured data to know the energy and reserve status of DERs and have not commented on estimating them from the planning horizon. Load management [8][9][10] and grid trade [11] are some of the extra options used for energy management. Refs.…”

The research on coordinated operation and cluster management for multi-microgrids

“…In this opinion, it is urging to study the management methods and cooperation modes of mult i-microgrid system. The operation management and control issues and economic, environmental, and operational effects are researched by [6][7][8][9] and [10][11][12][13][14][15][16] respectively.…”

“…Also some papers analyzes the impact due to penetration [10], the ma rket bid [11], power quality and supply reliab ility modeling and evaluation [12] , mu lti-objective optimization operation model [13] , the greenhouse effect [22] , the market mechanism [23] and service restoration for black start [24] respectively.…”