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Design of Double-Loop Current Transformer Based on Magnetic Field Incomplete Cancellation

CSEE Journal of Power and Energy Systems 2025年第2期11卷 772-782页

作者： Wenbo Li Xiaojun Tang Youshui Lu Ling Yan Yi Wu Mingzhe Rong Department of Measurement and Control Technology&Instrumentation School of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710000China State Key Laboratory of Electrical Insulation&Power Equipment School of Electrical EngineeringXi'an Jiaotong UniversityXi'an 710000China

Electromagnetic current transformer is one of the important pieces of equipment used in AC power system measurement. Due to continuous improvement of current level to be measured in the power system, ordinary single-loop magnetic core structure cannot meet industrial needs of wide measuring range with high accuracy, while it even has a magnetic saturation problem when measured current is reaching the limit. Most existing methods expand measuring range and increase antisaturation ability of the magnetic core by either opening an air gap in the magnetic core or increasing number of turns of primary and secondary windings, but it will bring additional problems such as volume and heat dissipation of the transformer. To solve such issues, in this paper, we proposed a magnetic core structure of double-loop current transformer based on incomplete magnetic field cancellation principle. Calculation formula of air gap size and theoretical error are analyzed. We provide a theo-retical analysis of working characteristics, amplitude error and phase error throughout a three-dimensional simulation model of transformer. In addition, we evaluate performance through a series of comparison experiments. Results demonstrate our double-loop current transformer can maintain good linear relationship between primary and secondary current while ensuring measurement accuracy at 0.2 level. With the same volume, it has a wider range of rated current measurements and a certain anti-saturation ability.

关键词： Current difference coefficient double-loop core incomplete magneticfield cancellation

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Frequency Regulation of Multi-Source Power System Through Aggregated Thermostatically controlled Loads

Frequency Regulation of Multi-Source Power System Through Ag...

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2024 IEEE Silchar Subsection Annual Conference, SILCON 2024

作者： Gupta, Sweta Harish, V.S.K.V. Sharma, Rajneesh Netaji Subhas University of Technology Department of Electrical Engineering New Delhi India Netaji Subhas University of Technology Department of Instrumentation and Control Engineering New Delhi India

ISBN: (纸本)9798331540821

The use of thermostatically controlled loads like inverter air conditioners (IACs) is widespread and can be leveraged for frequency regulation services. This paper focuses on load frequency control (LFC) for single area multi-source system comprising thermal, hydro and gas sources. The proportional integral (PI) and fractional order PI (FOPI) controllers are proposed using the particle swarm optimization (PSO) algorithm. The PSO based PI/FOPI strategy determines controller parameters by optimizing ITAE performance index. MATLAB/SIMULINK results demonstrate the significant improvements in overall system dynamics. The robustness of the proposed controllers is assessed under non-linear conditions, including generation rate constraints (GRC), governor dead band (GDB) and time delays. The PSO-FOPI controller exhibits superior robustness and dynamic response among the considered controllers. © 2024 IEEE.

关键词： Particle swarm optimization (PSO)

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Economical Demand-Side Management with Distributed Energy Resources

Economical Demand-Side Management with Distributed Energy Re...

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2024 IEEE Region 10 Symposium, TENSYMP 2024

作者： Vishal Kumar, Sachin Sagar, Harsh Kumar Gaurav Agrawal, Alok Netaji Subhas University of Technology Department of Electrical Engineering New Delhi India Netaji Subhas University of Technology Department of Instrumentation and Control Engineering New Delhi India

ISBN: (纸本)9798350364866

A potent technology for demand response is proposed in this paper. The proposed algorithm is believed to bring significant monetary increments and improvements in grid stability, especially within the emerging context of renewables as well as Electric Vehicles (EVs). This research presents an innovative strategy for finding residential participants with load profiles alone for maintaining grid stability, which is useful in data-scarce countries like India. The proposed algorithm aimed at maximizing customer and grid benefits. Additionally, the adoption of Distributed Energy Resources (DERs) will make Demand Side Management (DSM) strategies more effective, thus underlining their significance in molding a sustainable energy environment. More importantly, the study contributes to the knowledge of economic DSM practices outlining DER integration for future energy resilience and sustainability. © 2024 IEEE.

关键词： Demand response

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RFID Based Embedded System for Automatic Identity and Body Temperature Screening in the Working Environment 2

RFID Based Embedded System for Automatic Identity and Body T...

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2nd IEEE International Conference on Futuristic Technologies, INCOFT 2023

作者： Suresh, Setti Khan, Mohammed Arshad Ali Chakaravarthi, Geetha National Institute of Technology Department of Instrumentation and Control Engineering Tamil Nadu Tiruchirappalli India

ISBN: (纸本)9798350308846

Monitoring human body temperature is an important aspect that plays a crucial role in maintaining a safe, healthy, and productive working environment. This paper presents an RFID based embedded system for recording the identity and body temperature of people in an industrial or institutional working environment. A prototype is developed and demonstrated using a commercial RFID tag attached to the person and a temperature screening module connected to the RFID reader. When a person with a tag enters the hotspot zone of the reader, the identity part will be automatically recorded, and the temperature sensor is facilitated in such a way that the infrared waves will hit the forehead or forearm of the individual. An ultrasonic sensor with distance logic is used to maintain the accuracy of body temperature measurements and prevent the misreading of ambient temperature as body temperature. The RSSI feature of an RFID tag is used to eliminate the ambiguity in mapping between the identity of a person and his body temperature. The acquired data from the module is transferred to the Thingspeak IoT platform to enable remote monitoring of body temperature. It is observed that the proposed RFID-based embedded system is a costeffective, non-contact, and remote monitoring solution to enhance the safety of people in the working environment. © 2023 IEEE.

关键词： Radio Frequency Identification Remote Health Monitoring RFID Tag Temperature screening

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Comparative Study of PID and State Feedback controller for Level control System 4

Comparative Study of PID and State Feedback Controller for L...

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4th IEEE Global Conference for Advancement in technology, GCAT 2023

作者： Jaid, Atharva Durge, Gaurav Joshi, Ashutosh Kalambe, Khomesh Dhale, Hrishikesh Patankar, Sanika Department of Instrumentation and Control Engineering Vishwakarma Institute of Technology Maharashtra Pune411037 India

ISBN: (纸本)9798350305258

This paper presents a control strategy for regulating the level of a tank using a PID and a state feedback controller designed in MATLAB. The tank level control system is a nonlinear process that involves the inflow and outflow of liquid. The objective is to maintain the tank level at a desired setpoint despite disturbances in the inflow rate. First, equation-based mathematical models of the system were derived. Based on the system modelling, the two control strategies for PID and state feedback controllers were designed. The tuning of the PID parameters is performed using MATLAB's PID tuning feature and the Ziegler-Nichols method. Also, the state feedback gains are calculated using the pole placement technique. For PID we got an overshoot of 22.72% and for state feedback, it is almost negligible. Simulation results showed that the state feedback control strategy is effective in regulating the tank level, and outperforms a traditional PID controller in terms of steady-state error and response time. © 2023 IEEE.

关键词： MATLAB PID controller State Feedback controller System Modelling Tank Level control

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Grid-Connected Fuel Cell with Upgraded Voltage Profile 2nd

Grid-Connected Fuel Cell with Upgraded Voltage Profile

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2nd International Conference on Signals, machines, and Automation, SIGMA 2022

作者： Saxena, Purvaa Jha, S.K. Department of Instrumentation and Control Engineering Netaji Subhas University of Technology New Delhi India

ISBN: (纸本)9789819909681

In this work, an electrical network connected to proton exchange membrane fuel cell (PEMFC) is considered. The voltage profile of the system is enhanced by connecting the fuel cell with the boost converter and a seven-level cascaded multilevel inverter. The traditional PID controller does not responds to the nonlinearities of the system. Hence, PID controller is dynamically tuned by the Whale Optimization Algorithm (WOA). The whole architecture is developed in SIMULINK. For testing the effectiveness of the proposed model, the transients are given to the system for short duration and the results are then compared. It is observed that the proposed model has improved voltage response and reduced harmonics. The analysis for the power quality enhancement is confirmed through Total Harmonic Distortion (THD). © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： Three term control systems

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2DOF PID-Based controller for Chemotherapeutic System 2nd

2DOF PID-Based Controller for Chemotherapeutic System

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2nd International Conference on Signals, machines, and Automation, SIGMA 2022

作者： Mondal, Disha Rani, Asha Singh, Vijander Department of Instrumentation and Control Engineering Netaji Subhas University of Technology New Delhi India

ISBN: (纸本)9789819909681

This paper aims to analyze the capability of 2DOF PID controller while dealing with multiple and conflicting objectives problem. A basic PID control system fails to track the reference input and reject the disturbance simultaneously. This problem may be better dealt with the use of a two-degree of freedom controller which combines the effect of two controllers in separate loops to meet the two criteria. The problem considered in this study is the drug dose control in chemotherapy. In this study, multi-objective GA and multi-objective swarm optimization algorithms are implemented to obtain the optimum amount of the drug delivery for chemotherapeutic treatment. The designed controller is compared with the conventional PID controller. Various analyses like step response analysis, bode analysis, parameter perturbation analysis and disturbance analysis are carried out to justify the performance of the designed controller. © 2023, The Author(s), under exclusive license to Springer Nature Singapore Pte Ltd.

关键词： controllers

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Optimizing Data Set Requirements For Pre-Eminent Wind Speed Predictions in Summer and Winter Seasons

Optimizing Data Set Requirements For Pre-Eminent Wind Speed ...

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2023 IEEE International Conference on Power Electronics, Smart Grid, and Renewable Energy, PESGRE 2023

作者： Agrawal, Alok Netaji Subhas University of Technology Department of Instrumentation and Control Engineering New Delhi India

ISBN: (纸本)9798350310573

Due to depleting fossil fuel reserves and increasing global weather concerns renewable energy resources such as solar and wind resources are the favorites of power engineers considering their ease of accessibility and abundance in nature. However, a major flaw lies in the uneven distribution of these resources around the year. Wind speed prediction enables us to predict the wind farm power output over a desired time range. In this paper wind speed has been predicted for 6-96 hours ahead, by developing the statistical time series model which predicts the current year data using the different combination of corresponding yearly data set of past N consecutive years. The paper aims at finding out the optimum value of N for each forecasting time horizon (6-96 hours) individually so that the best results are obtained. Wind speed data for location Mumbai (VABB airport) in summer and winter seasons was accumulated for analytical purposes. © 2023 IEEE.

关键词： Autoregressive model correlation coefficient data set prediction wind speed

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Cost Optimization of EV Charging Station Integrated with Solar PV 3

Cost Optimization of EV Charging Station Integrated with Sol...

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3rd IEEE International Conference on Electrical Power and Energy Systems, ICEPES 2024

作者： Srivastava, Prabhat Agrawal, Alok Gaur, Prerna Netaji Subhas University of Technology Department of Electrical Engineering New Delhi India Netaji Subhas University of Technology Department of Instrumentation and Control Engineering New Delhi India

ISBN: (纸本)9798350390728

Mobile charging stations (MCS) consist of vehicle equipped with battery banks and rapid chargers. The idea of using static charging station is to refuel electric cars. These charging stations are scheduled and routed to meet the needs of electric vehicle users who are heterogeneous in terms of geography and time. In order to meet the requirements of mobile charging stations, charging requests deadlines, cost estimation, acceptance of both the user etc. conditions should be required. Also, to optimize the problem to turn down the cost of charging, it should require to get the solar enabled charging station that provide surplus of energy at the peak hours and increase the reliability of system. Numerical findings demonstrate that the approach can significantly lower the cost of charging at peak hours and off peak too and also improving customer satisfaction by improvising the charging strategy. Solar based MCS have the potential to significantly contribute to the acceleration of EV adoption by offering charging services based on the location and time-agnostic. © 2024 IEEE.

关键词： Charging stations

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PID control using Metaheuristics for Binary Distillation Column

PID Control using Metaheuristics for Binary Distillation Col...

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2023 International Conference on Recent Advances in Electrical, Electronics and Digital Healthcare Technologies, REEDCON 2023

作者： Yadav, Vikas Yadav, Vritank Jha, Amar Nath Tanwar, Sarthak Singh, Nishant Netaji Subhas University of Technology Department of Instrumentation and Control Engineering New Delhi India

ISBN: (纸本)9781665493826

The purpose of this work is to study and compare various tuning techniques for multi-input multi-output systems for binary distillation column. In this work Wood and Berry's model is considered for binary distillation column. This model of distillation column separates water and methanol. Classical PID controller is used to control the MIMO system. For tuning the parameters of PID controllers, various metaheuristics algorithms are applied such as Artificial Bee Colony (ABC), Cuckoo Search, Multi-Verse Optimization (MVO), Big Bang Big Crunch (BB-BC), Particle Swarm Optimization and Gravitational Search Algorithm (PSOGSA), Bat Algorithm and Particle Swarm Optimization (PSO). The tuning parameters are calculated for all the algorithms by minimizing a common objective function and same number of particles and iterations for all algorithms. A comparative study is conducted on system characteristics which includes settling time, maximum peak overshoot, objective function value and rise time after applying a step input signal for all the algorithms. © 2023 IEEE.

关键词： Three term control systems

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