Atefeh Zare - Academia.edu (original) (raw)

Papers by Atefeh Zare

This research describes the design of a rooftop photovoltaic system to meet the partial energy ne... more This research describes the design of a rooftop photovoltaic system to meet the partial energy needs of an apartment building in Newfoundland. A residential apartment building consisting of 54 apartments at fresh water road, St. John's is selected for this work whose average energy demand is 54KW (building is heated using oil). A grid-tied solar photovoltaic system without any battery backup has been deigned for this site because local grid is available and some net-metering laws are in place. The system has been designed by keeping in mind that the produced energy must not be greater than the average energy consumption of the building. Detailed system design, steady state modeling, dynamic modeling, control system design, analysis and required protection system are explained in this paper. Some cost analysis and installation details are also included in the paper.

This paper introduces the design and analysis of a Photovoltaic (PV) system to supply the residen... more This paper introduces the design and analysis of a Photovoltaic (PV) system to supply the residential load of a house in Golpayegan, Iran. The paper’s procedure is the house's thermal modeling employing BEopt software to estimate the load data and then collect the primary meteorological data such as solar irradiance and temperature for the selected site. After these preliminary steps, system optimization for PV/grid and PV/diesel/battery models are developed using the HOMER software. The optimization found that the PV array required capacities are 5.17 kW and 6.19 kW, producing 9,346 kWh/yr and 11,196 kWh/yr for standalone and grid-connected PV systems, respectively. The results indicate that solar energy utilization is an attractive option for grid-connected and standalone PV systems, of which the net present costs (NPC) of each system are 12,180 US$, 40,618 US$, respectively. The system analyses show that adopting either a PV/grid or PV/diesel/battery system causes a reduction in not only dependency on fossil fuel but also in CO2 emission.

Growing energy cost and demand has motivated many organizations to achieve smart ways to monitor,... more Growing energy cost and demand has motivated many organizations to achieve smart ways to monitor, control, and save energy. Smart automation can reduce costs while still satisfying energy demand. The residential, commercial, and industrial sectors can utilize the technologies of the Internet of Things (IoT) to manage energy consumption better. This paper presents a low-cost, open-source, and reliable Supervisory Control and Data Acquisition (SCADA) system for home monitoring and control system. The presented SCADA system consists of analog sensors, ESP32, Node-RED, and Message Queuing Telemetry Transport (MQTT) through local Wi-Fi to remotely access and control appliances. This system helps the users to monitor various conditions in the home, such as temperature, humidity, pressure, and light intensity. Thus, users can remotely monitor various devices such as lights, fans, heating/cooling systems, make decisions based on the feedback of sensors.

Designing control strategies to connect a photovoltaic (PV) system to the grid has been significa... more Designing control strategies to connect a photovoltaic (PV) system to the grid has been significantly challenging. This paper focuses on developing a controller for a single-phase PV system connected to the grid and its implementation to modify the power factor in the distribution
power system. To design a grid-connected PV system, its components are modeled, such as PV panels, Maximum Power Point Tracking (MPPT) algorithm, the grid interface inverter with the appropriate filter, and the DC link capacitor. SIMULINK / MATLAB is used for simulation in this study. The proposed control strategy is designed to track the maximum power point of The PV panels and control the PV active and reactive output power. In this paper, the presented reactive power control provides the PV system with power factor correction (PFC) capability. The proposed technique for checking controller validity is tested, and the results prove that the proposed controller is good and provides the required performance.