43,047 resources related to Frequency Control
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The conference program will consist of plenary lectures, symposia, workshops and invitedsessions of the latest significant findings and developments in all the major fields of biomedical engineering.Submitted full papers will be peer reviewed. Accepted high quality papers will be presented in oral and poster sessions,will appear in the Conference Proceedings and will be indexed in PubMed/MEDLINE.
The IEEE MTT-S International Microwave Symposium (IMS) is the premier conference covering basic technologies, to passives and actives components to system over a wide range of frequencies including VHF, UHF, RF, microwave, millimeter-wave, terahertz, and optical. The conference will encompass the latest in RFIC, MIC, MEMS and filter technologies, advances in CAD, modeling, EM simulation, wireless systems, RFID and related topics.
2021 IEEE International Conference on Fuzzy Systems (FUZZ-IEEE)
FUZZ-IEEE 2021 will represent a unique meeting point for scientists and engineers, both from academia and industry, to interact and discuss the latest enhancements and innovations in the field. The topics of the conference will cover all the aspects of theory and applications of fuzzy sets, fuzzy logic and associated approaches (e.g. aggregation operators such as the Fuzzy Integral), as well as their hybridizations with other artificial and computational intelligence techniques.
Energy conversion and conditioning technologies, power electronics, adjustable speed drives and their applications, power electronics for smarter grid, energy efficiency,technologies for sustainable energy systems, converters and power supplies
The CDC is the premier conference dedicated to the advancement of the theory and practice of systems and control. The CDC annually brings together an international community of researchers and practitioners in the field of automatic control to discuss new research results, perspectives on future developments, and innovative applications relevant to decision making, automatic control, and related areas.
The IEEE Aerospace and Electronic Systems Magazine publishes articles concerned with the various aspects of systems for space, air, ocean, or ground environments.
Experimental and theoretical advances in antennas including design and development, and in the propagation of electromagnetic waves including scattering, diffraction and interaction with continuous media; and applications pertinent to antennas and propagation, such as remote sensing, applied optics, and millimeter and submillimeter wave techniques.
The theory, design and application of Control Systems. It shall encompass components, and the integration of these components, as are necessary for the construction of such systems. The word `systems' as used herein shall be interpreted to include physical, biological, organizational and other entities and combinations thereof, which can be represented through a mathematical symbolism. The Field of Interest: shall ...
Broad coverage of concepts and methods of the physical and engineering sciences applied in biology and medicine, ranging from formalized mathematical theory through experimental science and technological development to practical clinical applications.
Broadcast technology, including devices, equipment, techniques, and systems related to broadcast technology, including the production, distribution, transmission, and propagation aspects.
IEE Colloquium on Frequency Control Capability of Generating Plant, 1995
IEEE PES General Meeting, 2010
A new method developed and applied to tune Secondary Control Loop (SCL) for grid frequency control is presented. The presented method is based on an equivalent representation of all active distributed Primary Control Loop (PCL) in the grid for frequency control. The characteristic of each PCL is associated to prime mover and its governors: Hydraulic, gas or steam. The equivalent ...
IEEE Systems Journal, 2018
In a high penetrated wind farm power system, wind farms can collaborate to control the power system frequency as like as conventional units. This paper presents a novel model to control the frequency of the wind farm connected to conventional units. Throughout the proposed frequency control, the integral controller, washout filter, and the PID controller could determine the active power ...
2018 IEEE Power & Energy Society General Meeting (PESGM), 2018
Control of variable speed wind turbines to participate system frequency control has become a new requirement for wind turbines in a high penetrated wind farm power system. This paper focuses on selection of the frequency controller parameters of the wind turbines to improve the frequency control effect. Frequency control method of the wind turbines is presented in this paper. Considering ...
Proceedings of IEEE 48th Annual Symposium on Frequency Control, 1994
An overview of frequency control devices used in radar systems is presented. These devices include frequency sources for master oscillators, frequency synthesizers for multiple frequency operation, and waveform generators for providing frequency or phase modulations on the radar transmit signal. The frequency control devices are presented from the perspective of their relation to each other, the application in the radar ...
A 30-MHz-to-3-GHz CMOS Array Receiver with Frequency and Spatial Interference Filtering for Adaptive Antenna Systems: RFIC Industry Showcase
From THz imaging to millimeter-wave stimulation of neurons: Is there a killer application for high frequency RF in the medical community? (RFIC 2015 Keynote)
A Fully Integrated 75-83GHz FMCW Synthesizer for Automotive Radar Applications with -97dBc/Hz Phase Noise at 1MHz Offset and 100GHz/mSec Maximal Chirp Rate: RFIC Industry Showcase 2017
IEEE Magnetics Distinguished Lecture - Mitsuteru Inoue
IEEE Day Future Milestones: 100% Renewable Energy penetration Is Possible
IMS 2014:Active 600GHz Frequency Multiplier-by-Six S-MMICs for Submillimeter-Wave Generation
2015 IEEE Honors: IEEE Medal in Power Engineering - Fred C. Lee
Micro-Apps 2013: Rapid Simulation of Large Phased Array T/R Module Networks
Richard J. Thompson Jr.: Crystal Clear
IMS 2011 Microapps - Local Fundamental Frequency Enhancements for X-Parameter Models
IMS 2012 Microapps - Practical Electromagnetic Modeling of Parallel Plate Capacitors at High Frequency
Erasing Logic-Memory Boundaries in Superconductor Electronics - Vasili Semenov: 2016 International Conference on Rebooting Computing
IMS 2011 Microapps - Understanding the Proper Dielectric Constant of High Frequency Laminates to Be Used for Circuit Modeling and Design
Optimization for Robust Motion Planning and Control
GaN HEMTs and Schottky Diodes
Inspiring Brilliance: The impact of control theory and cybernetics of Maxwell's paper: On governors
Flywheel Energy Storage for the 21st Century: APEC 2019
A Highly-Efficient 138?170GHz SiGe HBT Frequency Doubler for PowerConstrained Applications: RFIC Interactive Forum
IMS 2015: Robert H. Caverly - Aspects of Magnetic Resonance Imaging
A new method developed and applied to tune Secondary Control Loop (SCL) for grid frequency control is presented. The presented method is based on an equivalent representation of all active distributed Primary Control Loop (PCL) in the grid for frequency control. The characteristic of each PCL is associated to prime mover and its governors: Hydraulic, gas or steam. The equivalent model of distributed PCL takes into account all active representative composition of PCL in the grid for each typified power flow (seasons, working/not-working day, peak/valley, morning/afternoon/night, etc). By this way, each equivalent model of distributed PCL allows to find the best tuning of SCL for each typified power flow. This method was applied to tune the SCL of Yacyreta, a hydraulic power plant with 20 Kaplan turbines of 155 MW each one. Yacyreta is one of the power plants that have SCL in the "Sistema Argentino de Interconexion" (SADI), the largest power grid of Argentina.
In a high penetrated wind farm power system, wind farms can collaborate to control the power system frequency as like as conventional units. This paper presents a novel model to control the frequency of the wind farm connected to conventional units. Throughout the proposed frequency control, the integral controller, washout filter, and the PID controller could determine the active power variation value in different situations. In fact, a PID controller makes the wind farm aware of power variations. To improve the efficiency of the model, the defined frequency control parameters (i.e., PID coefficients) are optimized based on a multiobjective function using particle swarm optimization algorithm. This study has a unique perspective based on the wind farm collaboration through inertia control, primary frequency control, and supplementary frequency control of the system. A swift power reserve in a stable condition is needed in which wind farm can ameliorate the system frequency response. It is worth saying that the wind farm consists of variable speed turbines, such as a doubly fed induction generator, or a permanent magnet synchronous generator. To assess the performance of the proposed model, it is applied to a typical two-area system and the results are compared.
Control of variable speed wind turbines to participate system frequency control has become a new requirement for wind turbines in a high penetrated wind farm power system. This paper focuses on selection of the frequency controller parameters of the wind turbines to improve the frequency control effect. Frequency control method of the wind turbines is presented in this paper. Considering the system frequency response, the synthetic frequency response model is built, a multi-objective function of evaluating the effect of system frequency response is proposed, then genetic algorithm is used to determine the optimal frequency controller parameters. The performance of the frequency control effect with optimal frequency controller parameters of the wind turbines is validated in Matlab/Simulink.
An overview of frequency control devices used in radar systems is presented. These devices include frequency sources for master oscillators, frequency synthesizers for multiple frequency operation, and waveform generators for providing frequency or phase modulations on the radar transmit signal. The frequency control devices are presented from the perspective of their relation to each other, the application in the radar system, and their effect on radar system performance.<<ETX>>
GCCIA (Gulf Cooperation Council Interconnection Authority) is the Transmission System Operator links the power grids of GCC countries. GCCIA operates three back to back (btb) HVDC converters each rated 600 MW connecting the combined network of the 50 Hz GCCIA Member States with the 60 Hz Saudi system. The paper explains the key operational dynamic features of the HVDC frequency converter functions, particularly with regard to slow Frequency Control (FC) and fast Dynamic Reserve Power Share (DRPS). It discusses the FC augmentation of DRPS controller for the HVDC converters and frequency controller actions and strategies used for these applications. The analysis will test HVDC reliable operation on solving different failure challenges (fault and demand cases) expected to occur on both sides of the conversion. The case study will compare the real operation response of HVDC with frequency drop or rise. The PSS®E software is used for modelling the HVDC equipment as part of GCCIA network.
Load frequency control (LFC) is an important technique in providing good power quality and maintaining safety, reliability and economics of power systems. This paper proposes a PID controller design method via dynamic matrix control (DMC), and applies it to the load frequency control problems. DMC does not need a detailed mathematical model of the controlled plant, and the controller design can be done using the step response of the system, which is simple and can achieve good performance. However, receding horizon DMC needs certain burden of computation and is not easy to implement in a conventional distributed control system (DCS). So this paper approximates DMC to a PID controller utilizing its closed-loop form. Simulation results show that the proposed method can achieve good performance compared with the traditional PID method, with better load disturbance rejection and robustness.
One of the main revenue streams of the power system industries is provide a stable frequency all the time. Energy storage systems are well suited for the purpose because of their bidirectional capabilities. Recently converter based energy storage system has been gaining interests for providing frequency response replacing traditional generator based solutions due to the speed of the power electronic converters. One of the emerging problems has been how to control the converter or ride-through when there is a fault or sudden variation in grid voltage and what could be the possible impact on frequency. This paper analyses the effect of variation of grid voltage on the frequency control through the dynamics of the phase locked loop. The paper brings in a unique issue arises in frequency control structure especially under sudden grid voltage variation/fault conditions. It has been found that the frequency may undergo some unwanted oscillations during fault duration and the converter may be unstable. The detailed analysis of the frequency control stability issue under weak grid scenario is presented followed by a brief solution of the problem is discussed through comprehensive simulation studies.
Continuous frequency control from 5 to 10 GHz of an optical oscillator, can be induced in a single cavity DFB-MQW laser by simple change the laser bias current using the injection locking mechanism. This system is very attractive for optical communications, namely for clock recovery in high bit rate optical transmission systems.
UHF land mobile radio applications cover a wide frequency range and a wide corresponding percentage bandwidth. Moreover, it is desirable to cover this wide frequency range with the fewest possible different models. A novel architecture and frequency plan is discussed here which produces significant performance advantages for this type of radio. A procedure is outlined for choosing the frequencies of the frequency control devices which either places key spurious out of the radio operating band or minimizes their in-band contribution. Also important is the knowledge that the resulting high frequency crystal devices could be built in production.
The scope of this trial-use standard is the definition of an exchange format, using eXtensible Markup Language (XML), for identifying all of the hardware, software, and documentation that may be used to test and diagnose a UUT on an automatic test system (ATS).
This standard specifies unique per-device identifiers (DevID) and the management and cryptographic binding of a device to its identifiers, the relationship between an initially installed identity and subsequent locally significant identities, and interfaces and methods for use of DevIDs with existing and new provisioning and authentication protocols.
This standard is intended for use as a basis for performance and interchangeability of equipment covered, and to assist in the proper selection of such equipment. Safety precautions are also addressed. This standard covers certain electrical, dimensional, and mechanical characteristics, and takes into consideration certain safety features of current and inductively coupled voltage transformers of types generally used in the ...
Standard for Information Technology – Telecommunications and information exchange between systems – Local and Metropolitan networks – specific requirements – Part II: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: IEEE 802.11 Wireless Network Management Amendment
This amendment provides Wireless Network Management enhancements to the 802.11 MAC, and PHY, to extend prior work in radio measurement to effect a complete and coherent upper layer interface for managing 802.11 devices in wireless networks.