Independent control of soft-switched three-load induction cooking system with cyclic ON–OFF control

Multiple load Induction Cooking (IC) applications are present day need. It is required to have multiple induction heating coils with independent control for cooking applications. When such systems are powered from PV panels, there may be considerable ripple current drawn from the source. This paper proposes an inverter configuration and control technique which helps in reducing source current ripple considerably. This will help in providing the improved performance of the PV panels. Also this configuration provides independent control of each load. On-OFF control is used for power control in each load. High efficiency of the inverter is achieved. MATLab simulation results are presented.

In order to achieve vibration isolation and reduction for a multi-degrees of freedom system, this paper develops the ON-OFF control that has been proposed on the single-degree-of-freedom system by the authors. The method introduces additional spring and mass system, and the additional mass is designed to control the clamping friction force by the brake mechanism. The non-linear control law for the single-degree-of-freedom system is applied to a multi-degrees-of-freedom system by incorporating the idea of the independent modal space control (IMSC) method. Numerical simulations and experiments demonstrate the effectiveness of the method.

In order to achieve vibration isolation and reduction for a multi-degrees-of-freedom system, this paper develops the on-off control that has been proposed on the single-degree-of-freedom system by the authors. The method introduces an additional spring and mass system, and the additional mass is designed to control the clamping friction force by the friction joint switching mechanism. The non-linear control law for the single-degree-of-freedom system is applied to a multi-degrees-of-freedom system by incorporating the idea of the independent modal space control (IMSC) method. Numerical simulations and experiments demonstrate the effectiveness of the method.

In this work, a thermal analysis of water boiling using the induction cooking system has been performed. The boiling pot on induction cooker has been simulated by computational fluid dynamics (CFD) with experimental validations. For experimental part, the pot is filled with water and heated by the induction cooker. The temperature of coil, pot, and water is monitored with time varying. For computational part, the multiphase fluid field and solid conduction have been both studied. The heat transfer efficiency of this induction cooking system is estimated as 83.6%. Comparing with experiments, the maximum errors of the bottom pot and coil are 6.1% and 7.9% respectively. The numerical simulation results demonstrate good agreement with experiments. This work offers a better understanding of induction cooking system related dynamics which greatly benefits the practical industry applications.

The Chulha cooking module used predominantly in rural parts of India uses firewood and dung-based fuel. Subsequently, they generate a lot of indoor pollution causing staggering damage to human health. More than 50 million people in India nevertheless use this cooking module whose effects are so detrimental. In a bid to replace this conventional methodology, a Solar Powered Induction based cooking system was proposed. This induction based heating being a noncontact heating technique can easily reach greater temperature within a shorter span of time. The subsequent system is more appealing by catering better efficiency, safety and accurate output control. For this research we have capitalized the solar energy as the fundamental source that powers the induction stove. The primary objective of this paper is to model an induction cooking system that capitalizes solar energy with the quasi resonant topology and control the output by using Pulse Width Modulation.

Experimental and numerical multidisciplinary methodology to investigate the thermal efficiency of boiling pot on induction system

Multi-hob induction cooking systems can achieve a high degree of complexity. Since they are made up of analogical and digital blocks, a mixed-signal environment is needed for modeling and simulation. The modeling issue can be approached at different levels of abstraction and accuracy: various allowable solutions are considered and some of them (Matlab/Simulink, VHDL, VHDL-AMS and an extension of SystemC to analog mixed-signal), are employed in the modeling process of an induction cooking basic system.

During these years, the domestic induction hobs have been becoming increasingly popular, due to its specific features of safety, cleanliness, quick warming and high efficiency. Some of these features derive of the fact that the heating is directly generated in the vessel, unlike the traditional contact heating methods. Specially, the later feature is attracting the attention of researchers devoted to highly efficient power electronic systems. But the extensive upsurge of electricity and the lack of availability, the future society forces to think about another alternative. Solar energy provides cost effective solution to energy problems. This paper presents about how can we adept it in our cooking system i.e. using solar energy to cook faster, easier and cheaper compared to other cooking system. This paper presents simulation of Perturbation & Observation(P&O) MPPT technique to extract maximum energy from the photovoltaic systems and PI controller to get accurate and smooth power control for resonant converter. The main desired features when designing an inverter for domestic induction heating are the smooth output power control and the efficiency. And a high efficiency voltage control of induction cooktop prototype is designed for an operating at a switching frequency of 5 kHz frequency, 220 V line rms voltage, 50 Hz line frequency and a 100W output. Pulse width modulation (PWM) technique is used for providing pulses to the MOSFET via dsPIC microcontroller. For hardware implementation dsPIC30F4011and MOSFET IRF840 is used along with TLP 250 as a driver circuit. The particular features are smooth voltage control reduction in conduction loss, high efficiency. The MATLAB simulation of P&O MPPT control for solar and PI controller for resonant converter is presented.

Islands located far away from the mainland and remote communities depend on isolated microgrids based on diesel fuel, which results in significant environmental and cost issues. This is currently being addressed by integrating renewable energy sources (RESs). Thus, this paper discusses the generation planning problem in diesel-based island microgrids with RES, considering the electrification of transportation and cooking to reduce their environmental impact, and applied to the communities of Santa Cruz and Baltra in the Galapagos Islands in Ecuador. A baseline model is developed in HOMER for the existing system with diesel generation and RES, while the demand of electric vehicles and induction stoves is calculated from vehicle driving data and cooking habits in the islands, respectively. The integration of these new loads into the island microgrid is studied to determine its costs and environmental impacts, based on diesel cost sensitivity studies to account for its uncertainty. The results demonstrate the economic and environmental benefits of investing in RES for Galapagos’ microgrid, to electrify the local transportation and cooking system.

Islands located far away from the mainland and remote communities depend on isolated microgrids based on diesel fuel, which results in significant environmental and cost issues. This is currently being addressed by integrating renewable energy sources (RESs). Thus, this paper discusses the generation planning problem in diesel-based island microgrids with RES, considering the electrification of transportation and cooking to reduce their environmental impact, and applied to the communities of Santa Cruz and Baltra in the Galapagos Islands in Ecuador. A baseline model is developed in HOMER for the existing system with diesel generation and RES, while the demand of electric vehicles and induction stoves is calculated from vehicle driving data and cooking habits in the islands, respectively. The integration of these new loads into the island microgrid is studied to determine its costs and environmental impacts, based on diesel cost sensitivity studies to account for its uncertainty. The results demonstrate the economic and environmental benefits of investing in RES for Galapagos' microgrid, to electrify the local transportation and cooking system.

Induction cooking technology offers enhanced energy efficiency and environmental benefits over traditional methods. However, its widespread adoption faces challenges such as power requirements, material selection, and integration with renewable energy sources. This systematic mapping study analyzes the current state of induction cooking technology, identifies key challenges and trends, and provides insights for future research and development. It conducted a systematic mapping study in five major databases to retrieve relevant studies published between 2013 and 2024. After applying inclusion and exclusion criteria, 58 primary sources focused on induction cooking systems, renewable energy integration, and related technologies were analyzed. Results show a positive trend in scientific publications related to induction cooking, with the half-bridge inverter and full-bridge topology being the most employed. Significant challenges include power requirements during prolonged use, topology, material selection, and integration of renewable energy sources. Emerging trends include the application of deep learning techniques, flexible induction stoves, and the use of gallium nitride technology. The review also highlights the need for standardized validation methodologies and material optimization for improved efficiency and user safety. This literature mapping provides a comprehensive overview of the current landscape of induction cooking technology and is a valuable resource for researchers, engineers, and policymakers.

Temperature estimation of cooking vessel content via EKF and sliding mode observers in induction cooking systems

This paper investigates the thermal impacts of electromagnetic proximity effects among the coils of domestic induction heating system (DIHS) with distributed planar spiral multicoils. A combined coordinates system is developed in the computation, consisting of a master Cartesian coordinate system and multiple slave cylindrical coordinate systems. The proposed computing method is implemented with different effecting parameters so as to analyze the impacts of proximity effects and eddy currents distribution in the DIHS. Computation results are validated through comparing against those from the finite element method (FEM). Furthermore, the temperature field is calculated to study the thermal impacts of proximity effects on the thermal distribution in the induction plate.

Accessing affordable and reliable energy services for cooking is important in most developing countries. Improving access to affordable energy reduces effects on human health and environmental influences caused by burning of various biomasses. This review examines the energy resources available in the world and their use in cooking. It also looks at challenges and the ways these energy resources are used as well as possible solutions to such challenges. The major challenges facing the use of available fuels are low efficiencies, high cost, un-sustainability and indoor house pollution that affect many people. The paper has identified that the use of combustion-less cooking, the use of solar for cooking, hydrogen and electrical systems that improve cooking activities and therefore overcome indoor and environmental pollution. Research findings indicate that the pressure-cooking concept improves energy efficiencies in boiling operations. Other energy efficiency improvement techniques in cooking are insulation, containment of escaping steam while cooking and automating the cooking vessel with micro-controllers. The overall efficiencies for electrical induction heating, natural gas, traditional cooking stoves, fuel wood stoves and electrical resistive heating was found to be 90%, 45-60%, 10%, 23-40% and 75% respectively. Induction cooking is both faster and more efficient than gas cooking, while electrical energy systems as a whole were found to be the cleanest, offering ease of control and versatility. The combination of a micro-controller automated insulated pressure cooker and induction cooker can highly improve the cooking efficiency. This is done by cutting a power supply using a relay controlling an induction cooker and therefore preventing the exit of steam. It is therefore identified that zero emission release during cooking will reduce both indoor and environmental pollution significantly.

Energy efficiency and carbon footprint of home pasta cooking appliances