Abstract
With the gradual decline in fossil fuels, the area of interest for electric power generation has shifted to wind turbines and other sources of DC electricity such as PV (photovoltaic). Since the voltage output values of these sources vary over a wide range, DC/AC inverters should be used which give an increased constant output voltage and well controlled output voltage. In residential buildings that meet the energy need from non-continuous renewable energy sources such as solar panels and wind turbines, it is very important to ensure constant quality power flow to the building, especially when energy demand varies sharply. In this study, it is aimed to control the voltage consumed in the houses by controlling the three phase PWM (pulses width modulation) voltage source inverter system (VSI) with PI-PD controller in the integrated smart building system of renewable energy sources (solar panel and wind turbine). First the building integrated solar and wind systems (BIPv/Wt-Building Integrated PV Panel and Wind Turbine) design, then the controller design and the simulation of the system have been made at this research. After obtaining the transfer function of the BIPv/Wt system, the parameters of the PI-PD controller were calculated using the frequency response analysis method. In the BIPv/Wt system, we used PI-PD, integer order PI and fractional order PI control structures to control the closed voltage control loop in the DC/AC inverter system used to control the voltage used in the building. In order to compare the voltages of the control structures on the voltage used in the building, we installed our system on the Matlab / Simulink platform and performed simulations for two test scenarios. Depending on the phase voltages plotting the simulation results and the harmonic values measured, it is seen that using PI-PD control has more positive results for the systems showing the energy demand for the day such as building systems.
Highlights
Due to rapidly developing technology, changing living standards and increasing world population, the energy demand is accelerating and increasing day by day
The simulations are applied for two different test scenarios to analyse the phase voltages at the building disturbition and the total harmonic distortion (THD) of home voltage in order to compare the advantages between PI-PD controller designed with PI and fractional order PI controllers which are used to improve the quality of the electrical energy supplied to the building
This study provides a voltage control system using PI-PD control operator in smart residential building systems integrated into hybrid renewable energy source
Summary
Due to rapidly developing technology, changing living standards and increasing world population, the energy demand is accelerating and increasing day by day. In the world; In order to reduce energy consumption and increase energy efficiency in new buildings, there are many new houses where successful results are achieved through the selection of high energy performance based design and integration of energy efficiency enhancing systems applied during construction. The intelligent building system fed by the grid and the hybrid renewable energy system based on solar and wind power which the electrical schema shown in Figure 1 are modeled in Matlab/Simulink environment (Kaygusuz et al 2013). The DC voltage accumulated in the DC bus is converted to 311 sinwt voltage thanks to the DC/AC inverter and the voltage obtained will be consumed by the households living in the building. The aim of this study is to control the DC/AC inverter system and to provide consumers with a better quality voltage
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