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Performance and Reliability Investigation of Practical Microgrid with Photovoltaic Units
Published in Bhavnesh Kumar, Bhanu Pratap, Vivek Shrivastava, Artificial Intelligence for Solar Photovoltaic Systems, 2023
Burhan U Din Abdullah, Shiva Pujan Jaiswal, Suman Lata, Suman Dulal, Vivek Shrivastava
The PV solar panels or collection in a PV unit, also known as a “grid-tied” or “on-grid” solar cell, are electrically attached or “tied” to the local main power electricity grid, which integrate electrical energy power into the unit (Jaiswal et al., 2021; Adefarati and Bansal, 2019). The key benefits of a grid-connected PV device include its ease of use, low operation and repair costs, and lower power bills. The downside is that to produce the necessary amount of surplus electricity, a substantial majority of solar panels must be mounted. Since grid-tied structures feed their energy from solar power into the unit, costly backup batteries are unnecessary and can be left out of most grid-tied designs. Furthermore, since this form of a PV device is permanently attached to the infrastructure, solar energy usage and solar panel sizing measurements are not necessary, allowing for a wide variety of choices, including a unit as small as 1.0kWh mostly on the rooftop to help minimize your energy costs, or a much larger floor-mounted installation big enough to practically eradicate your electricity bills.
Alternate Power Sources
Published in Michael F. Hordeski, Emergency and Backup Power Sources:, 2020
Utility grid systems operate on alternating current so grid-connected applications of photovoltaic modules require an inverter to convert the DC output to AC power. The inverter also provides a means to disconnect the PV module during an outage. Solar electric systems can operate independently from the grid by using energy storage in the form of a battery. The different types of solar modules allow mounting on a variety of building and on-ground environments. The PV modules are one component of the system. The other components are the inverter, mounting system hardware and wiring. The inverter converts the direct current produced by the PV modules to alternating current. The inverter may be the weak point in the PV system since it is the most frequent cause for failures and malfunctions. However, inverters are becoming more reliable.
Introduction to PV Systems
Published in Roger Messenger, Homayoon “Amir” Abtahi, Photovoltaic Systems Engineering, 2017
Roger Messenger, Homayoon “Amir” Abtahi
In some cases, where either a large discrepancy between seasonal loads exists or where seasonal sun availability varies greatly, a stand-alone system designed completely around PV components will result in the deployment of a large PV array to meet the needs of one season. Meanwhile, during other seasons, much of the energy available from the array is not used. This is similar to the problem of meeting critical system needs with PV, where the cost generally increases rapidly as the system availability exceeds 95%. In such cases, it is often more cost-effective to employ an alternate source of electricity to be available when the PV array is not meeting system needs. While it is conceivable that the backup source for a stand-alone system may be wind or other renewable source, it is more common to employ a gasoline, diesel, or propane generator as a system backup. In a grid-connected system, the utility grid provides any needed backup power, unless, of course, the grid goes down.
A novel function roach and intelligence control technique for power quality improvement in grid incorporated solar photovoltaic system
Published in International Journal of Green Energy, 2022
Shiv Prakash Bihari, Pradip Kumar Sadhu
In recent times, renewable energy is a widely used concept that has influenced energy policy all over the world Javed, Ashfaq, and Singh (2020). From renewable energy sources, SPV-based power generation is one of the recent advanced developments (Adefarati and Obikoya 2019). Because the usage of SPV frame has been reduced the exhaust emission from the traditional power generation, thus it is mainly utilized in several power system applications. Moreover, the SPV system is coordinated with the grid connection due to its advanced effect on power demand in industries and so on. The grid coupled PV systems have high installation when compared with other stand-alone systems because stand-alone systems utilize batteries MansouriKouhestani et al. (2020). Nevertheless, the grid-connected PV system does not need batteries because it requires less maintenance and low cost (Tuballa and Abundo 2018). The generated PV power is given to the suppliers through a grid connection effectively. In general, the SPV system is connected to either a single-stage or a double-stage grid system Raj, Aditya, and Shinde (2020). However, the SPV systems are generally linked with the double-stage grid system that is more effective when compared to the single-stage method. The PV array is coupled with the grid via the boost converter and MLI, also the DC link capacitor is connected in the double-stage grid between the boost converter and MLI. A boost model converter is utilized to amplify the power from SPV Bahrami et al. (2019).
Thermo-economic and environmental feasibility of a solar power plant as a renewable and green source of electrification
Published in International Journal of Green Energy, 2019
Muhammad M. Rafique, Haitham M. S. Bahaidarah
The classifications of PV systems are generally based on their configurations, operations, and functional requirements. The two main types based on configuration of PV equipment connected to electric loads are grid connected/grid-tied and off grid/standalone system. The grid-tied PV systems supply harnessed power to a central grid that distributes it to the consumers whereas stand-alone systems operate independent of utility grid and directly supply electricity to the consumers. The grid connected PV system can be designed without or with a backup battery depending on the situation and requirements. In this study, a grid tied PV system without backup battery is considered as shown in Figure 3.
An Integrated Energy Control System to Provide Optimum Demand Side Management of a Grid-Interactive Microgrid
Published in Electric Power Components and Systems, 2023
Izviye Fatimanur Tepe, Erdal Irmak
Depending on grid conditions, photovoltaic systems (PV) and energy storage systems can be operated as grid-connected. However, for some applications especially in rural areas without grid connection, stand-alone PV/battery structures might be required [4]. For grid-connected hybrid PV/battery systems, extra control procedures are required for determining critical operations such as whether the batteries are charged from PV system or from the utility grid, in which hours they are being charged and/or discharged and so on [5]. This requires using an efficient energy management strategy.