Demand side management of household appliances in stand-alone hybrid photovoltaic system

Abstract

a b s t r a c tIn this paper, a demand side management control (DSM) acting on the load profile for an isolated hybrid photovoltaic/diesel/battery system for residential application was investigated. This control is a new strategy that compensates the global power flow of a distributed generation system. In fact, using the DSM strategy, the renewable energy can be used effectively to satisfy the demand and reduce the size of the system components. It leads to satisfy customers' continuous requirements to minimize the loss of power supply propability (LPSP), to extend the battery life time minimizing the storage system charge cycle, and to reduce fuel consumption and CO 2 emission together with the diesel generator operation rate (DGOR). Consequently, the DSM strategy is implemented to ensure the minimum system cost. The DSM algorithm relies on the customer's energy consumption record, the instantaneous available PV energy and the state of charge (SOC) of the battery storage system. This could be achieved through switching between two action modes on the consumption profile: time shifting load mode, amplitude modulation load mode. To prove the effectiveness of the proposed control strategy, two scenarios were investigated. The first one describes the system's simulation for two typical days. The second scenario is performed using annual profiles of photovoltaic and load powers. To highlight the benefits of the proposed strategy for the residential hybrid system applications under various conditions, a comparative study between the power management strategies without and with DSM was presented.

Game-theoretic energy management with storage capacity optimization in the smart grids

“…Energy output in a certain day, which is shown in Fig. 3, is assumed based on the predicted data in [38]. Additionally, user's battery capacity is assumed in the range of [1.0, 5.0] kWh and the battery can be charged during PV working time from 6:00 to 17:00.…”

A flexible control strategy of a renewable active generator to participate in system services under grid faults

“…According to Kallel et al, there is a linear relationship between the SOC of the battery and its open circuit voltage E bat ; this relationship is given by …”

“…To bring out the physical phenomena that govern the functioning of the storage, the temperature should be taken into account. Consequently, the proposed model of the capacity gives the amount of energy that can be restored as a function of the mean discharge current: where ∆ T = T − 25 is the temperature variation.…”

Consumption modeling based on Markov chains and Bayesian networks for a demand side management design of isolated microgrids

“…The characterization of the MC considers that the number of active (in-home and not sleeping) occupants in the dwelling and their activities was registered. The authors [23][24][25][26] studied the response using technologies that apply direct load control, resulting in an effective approach to change the consumption profiles. By associating related devices to these activities, a load profile was obtained [20,21].…”

“…On the other hand, to simulate and model users' responses to a DSM strategy, most efforts focus on economic incentives and the associated technologies. The authors [23][24][25][26] studied the response using technologies that apply direct load control, resulting in an effective approach to change the consumption profiles. In Refs.…”