The additive manufacturing technology has been applied in various sectors: the manufacturing of industrial components, toys, medicine, medical-surgical instruments, and tissue engineering sectors. In the tissue engineering field, it has been intensively applied to make biomaterials, organs, and drugs. The fundamental procedures of the additive manufacturing process, the various additive manufacturing techniques, and advanced methods that have been applied in the making and synthesis of organs in the tissue engineering fields have been described. In this chapter, the computer-aided tissue modelling process, different fundamental and advanced biomaterials, and advanced scaffold manufacturing applications in emerging tissue engineering fields have been illustrated.
Voltage flicker is a disturbance in electrical power systems. The reason for this disturbance is mainly due to the large nonlinear loads such as electric arc furnaces. A STATCOM is considered as a proper technique to mitigate the voltage flicker. Application of more suitable and precise power electronic converter leads to a more precise performance of the compensator. The voltage flicker compensation by 6 - pulse as well as 12-pulse static synchronous compensator (STATCOM) has been performed. In this case, injection of harmonics into the system caused some problems which were later overcome by using 12-pulse assignment of SATCOM and RLC Alter. This paper deals with the voltage flicker mitigation and reduction in total harmonic distortion (THD) and compared the results in detail. The obtained results show that STATCOM is very efficient and effective for the compensation and mitigation of voltage flicker and harmonics all the simulation results have been performed on the MATLAB Software.
This paper deals with the Voltage flicker in power systems. Voltage flicker is one of the disturbances in power systems. This voltage flicker occurs due to non linear loads. A three phase four wire inverter system is consider to compensate the voltage flicker. The three phase four wire inverter can perform multi functions such as : 1) it transfers the power to the main line from DC link, and 2) it acts as shunt Active Power Filter to mitigate reactive power demand, unbalance current, harmonic content in load current, and neutral current at load. Inverter can perform these functions individually or simultaneously. In this paper voltage flicker mitigation can be done by using FCTCR (Fixed Capacitor Thyristor controlled Reactor) and 3-φ, 4-wire inverter (STATCOM) of eight pulses. From the above two compensating devices STATCOM results show effective mitigation of voltage flicker. Simulation results are shown in MATLAB software.
1 January 2023 in International Transactions on Electrical Energy Systems
A smart energy management controller is required for effective source coordination and load demand management. This work proposes a novel instantaneous current reference technique for use in power management of hybrid power systems (HPS), both autonomous and interconnected with the grid. A grid integrated hybrid power system (GI-HPS) includes both the AC grid and additional sources used in industrial and commercial environments. Solar photovoltaic (SPV) panels, wind turbine generators, proton exchange membrane fuel cells, and batteries are all part of the test system. The suggested energy management system (SEMS) manages power from the hybrid power source and the energy storage components to meet the load needs. The recommended SEMS can transit between 12 different modes of operation to fulfil the load demand requirements. The SEMS employs a scaling factor N to accelerate the rate at which the measured current approaches the reference current. The proposed scaling factor significantly improves the SEMSs dynamic performance since it can quickly respond to the changes in the source and load characteristics. The dependability of an HPS powered by a variety of renewable energy sources can also be improved.