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Journal articles on the topic 'Control and modulation strategy'

Author: Grafiati

Published: 7 June 2025

Last updated: 16 July 2025

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1

Ruiz-Gonzalez, Antonio, Mario Meco-Gutierrez, Francisco Perez-Hidalgo, Francisco Vargas-Merino, and JuanR Heredia-Larrubia. "PWM strategy with harmonics injection and modulated frequency triangular carrier. A review." Renewable Energy & Power Quality Journal (RE&PQJ) 15 (April 5, 2017): 666–70. https://doi.org/10.24084/repqj15.426.

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A new, programmed pulse-width modulation(PWM) technique to control power inverters, which uses a harmonic-injection modulator and a frequency-modulated triangular carrier, synchronized with the modulating signal is presented in this paper. The instantaneous carrier frequency is adjusted according to a periodic function synchronized with the fundamental term of the modulating signal, in order to maintain the average value of the instantaneous frequency as an odd positive integer multiple of  3, for each period of the modulating signal—which is known as the average modulation ord

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2

Zhou, Han, and Amr Baz. "Active nonreciprocal metamaterial using a spatiotemporal modulation control strategy." Applied Physics Letters 121, no. 6 (2022): 061701. http://dx.doi.org/10.1063/5.0100804.

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A class of active nonreciprocal metamaterial (ANMM) is presented which consists of an acoustic duct with periodically placed active diaphragms that are controlled by a spatiotemporal modulation strategy. The acoustic nonreciprocities can be realized by modulating a system's properties spatiotemporally. Such an approach has been extensively employed by many investigators to break the reciprocity in acoustic and elastic metamaterials. However, our proposed ANMM distinguishes itself from the above-mentioned methods by introducing actively tunable space-time modulated feedback gain of the controll

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3

Riveros, Jose A., Joel Prieto, Marco Rivera, Sergio Toledo, and Raúl Gregor. "A Generalised Multifrequency PWM Strategy for Dual Three-Phase Voltage Source Converters." Energies 12, no. 7 (2019): 1398. http://dx.doi.org/10.3390/en12071398.

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Pulse width modulation (PWM) strategies for the control of asymmetrical six-phase drives have been widely studied since the beginning of this century. Nevertheless, space vector modulation (SVM) techniques with multifrequency voltage injection for the control of all the degrees of freedom of the multiphase model is still a subject under research. This paper deals with this topic and introduces a generalised PWM method for a two-level voltage source converters. The architecture was derived by extending a three-phase modulator proposed as an alternative to the widely studied SVM. The proposal co

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4

Zheng, Zheng, and Fei Yan. "Research on Cascade Multilevel Inverter Control Strategy." Applied Mechanics and Materials 273 (January 2013): 439–43. http://dx.doi.org/10.4028/www.scientific.net/amm.273.439.

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Due to easy realization and high equivalent carrier frequency, the Carrier Phase-Shifted pulse width modulation technology has been applied in the multilevel modulation circuit. Space vector modulation technology has a wide range application because it is easy to realize and has the advantage of high DC voltage utilization. However, when it is directly used in a cascade inverter system, it becomes difficult to be realized because of the too many synthesis voltage vectors and switch states. This paper puts forward a new control strategy based on the technology of carrier phase-shift and vector

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Tao, Ziliang, Zhuo Sun, and Fanqing Jin. "Research on Control Strategy of Full-Bridge LLC." Frontiers in Computing and Intelligent Systems 12, no. 1 (2025): 205–9. https://doi.org/10.54097/assf3n23.

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Aiming at the application of full-bridge LLC resonant converter in electric vehicle on-board charger, a PSM+PFM hybrid modulation method is used to optimize the working situation of the LLC resonant converter. At the same time, by combining the advantages of phase shift modulation (PSM) and pulse frequency modulation (PFM), linear active disturbance rejection control (LADRC) is designed to realize efficient closed-loop compensation of the converter, and improve the stability and dynamic response performance of the system under different load conditions. The experimental results show that the c

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6

Zhou, Yang, and Xiao Ma. "Non-Sinusoidal Injection Control Strategy of Z-Source Inverter." Advanced Materials Research 591-593 (November 2012): 1360–66. http://dx.doi.org/10.4028/www.scientific.net/amr.591-593.1360.

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The modulation strategy of injecting non-sinusoidal into reference voltage is presented in this paper. Z-source inductor current ripple and the relationship of voltage gain versus modulation index are analyzed in detail. Compared to simple boost control, the non-sinusoidal injection modulation strategy can obviously decreased the switching times, thus switching loss is cut down, and the voltage stress and Z-source inductor current ripple are obviously reduced. Theoretical analysis, simulation and experimental results are presented to demonstrate the features of the control.

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Osu, Rieko, Ken-ichi Morishige, Hirokazu Tanaka, Hiroyuki Miyamoto, and Mitsuo Kawato. "Motor control strategy inferred from trajectory variance modulation." Neuroscience Research 65 (January 2009): S103. http://dx.doi.org/10.1016/j.neures.2009.09.455.

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8

Hanpei, Wei, Wei Haifeng, and Zhang Yi. "MATLAB SIMULATION RESEARCH ON PERMANENT MAGNET SYNCHRONOUS MOTOR VECTOR CONTROL." EPH - International Journal of Science And Engineering 7, no. 3 (2021): 30–37. http://dx.doi.org/10.53555/ephijse.v7i3.188.

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According to the mathematical model of PMSM (permanent magnet synchronous motor) and vector control method, PMSM FOC (vector control) simulation model is built on the basis of MATLAB/Simulink environment. The system adopts the rotor field oriented vector control method of id 0 to realize PMSM decoupling control. The speed regulator and current regulator uses the conventional PI control algorithm, and the inverter adopts SVPWM modulation strategies. The simulation results proved the feasibility of the control method, which provides a good theoretical basis for the parameters of PMSM control sy

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9

Liu, Lin, Zhong Chu Wang, and Chun Bo Gu. "Research of Chain-SVG PWM Modulation Strategy." Advanced Materials Research 986-987 (July 2014): 1108–11. http://dx.doi.org/10.4028/www.scientific.net/amr.986-987.1108.

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With the rapid development of control theory and microprocessor, many new rectifier control strategy has been born. In current power system, the rapid development of full-control devices, the high application of converter makes the electricity demand is higher and higher. At the same time the increase of power grid users, also bring more harmonic wave pollution, noise and other problems. Therefore, in the field of researching on inverter control has attracted more attention of more people. In order to meet the capacity of switching devices and reduce the switching frequency, often adopts multi

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10

Arkan, A. Kadum. "PWM control techniques for three phase three level inverter drives." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 1 (2020): 519–29. https://doi.org/10.12928/TELKOMNIKA.v18i1.12440.

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In this paper two very efficient pulse width modulation techniques were discussed named Sin pulse width modulation and space vector pulse width modulation. The basic structure of the three-level inverter neutral-point clamped is introduced and the basic idea about space vector pulse width modulation for three-level voltage source inverter has been discussed in detail. Nearest three vectors space vector pulse width modulation control algorithm is adopted as the control strategy for the three phase three level NPC inverter in order to compensate the neutral-point shifting. Mathematical formulati

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11

Cheng, Yan, Cun Dong, Shumin Sun, et al. "Participation of wind-storage combined system in the secondary frequency regulation control strategy of power grid." Journal of Physics: Conference Series 2846, no. 1 (2024): 012031. http://dx.doi.org/10.1088/1742-6596/2846/1/012031.

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Abstract The secondary frequency modulation of the unit, that is, the automatic generation control (AGC), is the process of increasing or decreasing the power of the power generation unit by the power plant unit according to the dispatching command issued by the power grid dispatching center, and then using the frequency modulator to restore the frequency. Based on the principle of AGC, this paper establishes a frequency dynamic response model of the secondary frequency modulation of the traditional unit and the wind storage participation system including load frequency control (LFC) and tradi

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12

Kitmo, Subhashree Choudhury, Akhlaque Ahmad Khan, Sima Das, and Mohamed F. Elnaggar. "Intelligent Approach for Control Techniques Based on Complex Converter Structures." International Journal of Energy Research 2023 (December 12, 2023): 1–13. http://dx.doi.org/10.1155/2023/6770322.

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Hybrid frequency control strategies are used to eliminate the problem of current inversion in multilevel cascaded asymmetrical H-bridge inverters. Unfortunately, this technique results in unbalanced power at the inverter output. The improved hybrid PWM modulation strategy helps to regulate power balances within a reasonable range at high and low voltages, by adjusting the conduction angle of the cells in high frequencies. However, as the conduction angle of a high-voltage cell increases, the fundamental amplitude of the inverter output voltage decreases, since waveforms with absolute values gr

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13

Chen, Changqing, and Lixiong Li. "Frequency Regulation Adaptive Control Strategy of Wind Energy Storage System for Wind Speed Uncertainty." Energies 17, no. 11 (2024): 2523. http://dx.doi.org/10.3390/en17112523.

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In order to reduce the negative influence of wind speed randomness and prediction error on frequency modulation, the reliability of the wind storage system was assessed effectively. In the wind storage frequency modulation system, a state of charge (SOC) adaptive adjustment method for wind speed randomness is proposed. Firstly, through the correlation analysis between the standby capacity of frequency modulation and the output power of wind turbine, the uncertainty of its frequency modulation capacity is revealed. Secondly, in view of the uncertainty of wind turbine frequency modulation, the o

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Li, Yue, Hailong Yu, Chuan Jiang, and Yong Jin. "Analysis of Control Strategy of Arc Plasma Power Supply Inverter Module." Electronics 12, no. 21 (2023): 4400. http://dx.doi.org/10.3390/electronics12214400.

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The inverter module serves as a critical component in the conversion of electrical energy within arc plasma power sources, exerting a profound influence on the overall performance and stability of the power supply. Consequently, the meticulous design and precise control of the inverter module are of paramount importance in ensuring the effective operation and application of arc plasma power sources. This paper introduces a dual-closed-loop control system, integrating a voltage outer loop with a current inner loop, as the cornerstone of its inverter module design. It also undertook a comprehens

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15

Suo, Dongnan. "Research on primary frequency modulation control strategy of wind power based on energy storage." Journal of Physics: Conference Series 2237, no. 1 (2022): 012021. http://dx.doi.org/10.1088/1742-6596/2237/1/012021.

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Abstract As a renewable energy, the uncontrollability of wind energy resources will cause the instability of the power grid. The research on the primary frequency modulation control strategy of wind power has become an urgent problem to be solved. Doubly fed wind power generation is the mainstream generator. The main methods of participating in frequency modulation include inertia control method and load shedding control method. This paper analyzes the doubly fed wind turbine model, analyzes its problems in the process of frequency modulation, and establishes the frequency modulation control s

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16

Sun, Li, Xin Wang, and Chenglian Ma. "Bidirectional Power Control Strategy for On-Board Charger Based on Single-Stage Three-Phase Converter." Electronics 13, no. 6 (2024): 1041. http://dx.doi.org/10.3390/electronics13061041.

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To solve the problems of large switching losses and the need for large-capacity electrolytic capacitances in three-phase DC/AC on-board chargers for vehicle-to-grid (V2G) applications, this paper proposes a single-stage bidirectional high-frequency isolated converter that eliminates the need for large-capacity capacitances. Combined with the proposed modulation scheme, it can theoretically reduce the switching loss by about two-thirds with the three-phase converter compared with the conventional modulation scheme, improving the converter’s operating efficiency and power density. Firstly, based

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17

Liu, kang, and Guige Gao. "Circulating Current Suppression Strategy of Modular Multilevel Converter Based on Model Predictive Control." E3S Web of Conferences 261 (2021): 01035. http://dx.doi.org/10.1051/e3sconf/202126101035.

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Modular Multilevel Converter (MMC) has the characteristics of high voltage level and low switching frequency. The traditional modular multilevel converter circulating current control strategy mostly adopts the PI control principle, and the parameter setting is complicated and the accuracy is not high, and the control process is more difficult. Model predictive control strategy is the optimal control method based on the model in the existing time domain. This paper proposes a Model Predictive Control (MPC) method based on carrier phase-shifted pulse width modulation (PSC-PWM) to suppress the ci

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18

Yohan Fajar Sidik, F. Danang Wijaya, Roni Irnawan, Muhammad Ridwan, Kevin Gausultan, and Sriyono. "Single-Phase Shift Modulation of DAB Converter in Typhoon HIL Simulation." Jurnal Nasional Teknik Elektro dan Teknologi Informasi 13, no. 1 (2024): 1–10. http://dx.doi.org/10.22146/jnteti.v13i1.6876.

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Solid-state transformer (SST) could be a solution for a future distribution system, in which many renewable energy sources (RES) are integrated. The SST consists of a single-phase dual-active bridge (DAB) converter, which is scale-down the dc voltage level. The control objective of the DAB converter used in the SST is to control its output voltage. This control strategy consists of a proportional-integral (PI) controller and a single-phase shift (SPS) modulation. Numerous literatures have mentioned about the SPS modulation for the DAB converter. However, they do not provide procedures in imple

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19

Fu, Rong Xia, Shan Shan Ren, and Rong Yao Fu. "The Charging Control of Linearity and Repeatability for RSD Solid-State Power Supply." Advanced Materials Research 347-353 (October 2011): 1049–54. http://dx.doi.org/10.4028/www.scientific.net/amr.347-353.1049.

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All the parametric formulas in the discontinuous current mode of CCPS are given in this paper. Due to the leakage inductance and distributed capacitance existing in the high voltage high frequency transformer, the charging current decreases as the load voltage increase. To solve the issue, a dual-mode modulation strategy between pulse frequency and pulse width modulation is taken. Finally, a capacitor charging power supply of 100V input and 1600V output is designed. The experimental results confirm the correctness of the theoretical analysis and modulation strategy.

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20

Qi, Xiaojing, and Jianyong Zheng. "VSG Control for Cascaded Three-Phase Bridge Based Battery Inverter." World Electric Vehicle Journal 14, no. 8 (2023): 203. http://dx.doi.org/10.3390/wevj14080203.

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With the increasing number of new energy sources connected to the grid, the unbalanced output of three-phase grid-connected inverters and the lack of no inertia and damping characteristics in the traditional microgrid control system will seriously affect the stability of voltage, frequency, and power angle for microgrids. This paper proposes a novel cascaded three-phase bridge inverter topology for the battery system used for the electric vehicle. Compared with traditional cascaded H-bridge inverters, the proposed multilevel inverter can achieve self-adaptive balance for three phases. The math

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21

Pratomo, Leonardus Heru, F. Danang Wijaya, and Eka Firmansyah. "A Simple Strategy of Controlling a Balanced Voltage Capacitor in Single Phase Five-Level Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 6, no. 1 (2015): 160. http://dx.doi.org/10.11591/ijpeds.v6.i1.pp160-167.

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The five-level inverter has been used for many applications in renewable energy systems. Even though its harmonic distortion was lower than the conventional two-level inverter. The five-level converter has some disadvantages such as increasing power semiconductor, complex pulse width modulation control methods, and problem with the voltage balancing of the capacitor. This paper aims to propose a modified five-level inverter based on sinusoidal pulse width modulation using phase shifted carrier to enhancing the capacitor voltage balancing. This modified five-level inverter reduces the overall c

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22

Zhou, Qi Xun, Yong Zhou, and Yu Feng Zhang. "Single-Loop SVPWM Modulate Strategy for Permanent Magnet Synchronous Motor Control System." Applied Mechanics and Materials 241-244 (December 2012): 1487–90. http://dx.doi.org/10.4028/www.scientific.net/amm.241-244.1487.

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The advantage and disadvantage of the common control methods for permanent magnet synchronous motor (PMSM) are analyzed. Combined the sine pulse-width modulation (SPWM) and field oriented control (FOC) algorithm, a novel control method of the space vector pulse-width modulation with single closed loop is presented. In MATLAB-Simulink, based on the mathematic model of PMSM, used the S-function and the algorithm of single-loop space vector pulse-width modulation (SL-SVPWM) a servo-model of PMSM is established. Via experiment, compared SPWM method to SL-SVPWM method, the different results of phas

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23

Lungu, Ovidiu V., Tao Liu, Tobias Waechter, Daniel T. Willingham, and James Ashe. "Strategic Modulation of Cognitive Control." Journal of Cognitive Neuroscience 19, no. 8 (2007): 1302–15. http://dx.doi.org/10.1162/jocn.2007.19.8.1302.

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The neural substrate of cognitive control is thought to comprise an evaluative component located in the anterior cingulate cortex (ACC) and an executive component in the prefrontal cortex (PFC). The control mechanism itself is mainly local, triggered by response conflict (monitored by the ACC) and involving the allocation of executive resources (recruited by the PFC) in a trial-to-trial fashion. However, another way to achieve control would be to use a strategic mechanism based on long-term prediction of upcoming events and on a chronic response strategy that ignores local features of the task

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Shao, Mingyan, Xiaolei Li, Chen Li, et al. "Frequency regulation scheme for islanded microgrid." Journal of Physics: Conference Series 2703, no. 1 (2024): 012034. http://dx.doi.org/10.1088/1742-6596/2703/1/012034.

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Abstract When the main grid of the power grid malfunctions undergoes emergency repairs, the microgrid is in off-grid operation. At this time, the microgrid in an isolated state must have self-frequency regulation capability. This article proposes a frequency control strategy for isolated microgrids, which can improve their ability to resist frequency interference. The proposed control strategy considers the different characteristics and capabilities of various micro-sources for frequency regulation. It classifies the frequency modulation micro-sources in the microgrid. Judgment conditions and

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Yuhendri, Muldi, Ahyanuardi Ahyanuardi, and Aswardi Aswardi. "Direct Torque Control Strategy of PMSM Employing Ultra Sparse Matrix Converter." International Journal of Power Electronics and Drive Systems (IJPEDS) 9, no. 1 (2018): 64. http://dx.doi.org/10.11591/ijpeds.v9.i1.pp64-72.

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Matrix converter is a good choice for Permanent Magnet Synchronous Motor (PMSM) drives, because it has high power density and does not require dc-link energy storage. the disadvantages of conventional matrix converter is using 18 active switches, so it becomes expensive and the modulation method becomes more complicated than back to back converter. To minimize this problem, this paper proposes variable speed drive of PMSM using Ultra Sparse Matrix Converter (USMC) based on Direct Torque Control (DTC) methods. This converter uses only 9 active switches, making it cheaper than conventional matri

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Lin, Xin, Yang Cao, Chaohu Xiong, et al. "Research on control strategy of industrial and commercial power convert system based on improved modulation algorithm." Journal of Physics: Conference Series 2936, no. 1 (2025): 012023. https://doi.org/10.1088/1742-6596/2936/1/012023.

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Abstract This paper addresses the challenges of power fluctuations due to the integration of renewable energy sources by proposing a novel control strategy for commercial energy storage systems. Specifically, it introduces a commercial power convert system model that utilizes the sine pulse width modulation (SPWM) algorithm combined with zero-sequence voltage injection. The paper details the method for implementing this zero-sequence voltage modulation algorithm and integrates a control strategy for grid connection and disconnection. The effectiveness of the proposed control strategy is evalua

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Ye, Manyuan, Qiwen Wei, Wei Ren, and Guizhi Song. "Modified Modulation Strategy of 1: 1: 2 Asymmetric Nine-Level Inverter and Its Power Balance Method." Electronics 9, no. 1 (2020): 75. http://dx.doi.org/10.3390/electronics9010075.

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The three unit nine-level inverter can output more voltage levels with fewer h-bridge units, while having better output waveform quality. However, in the conventional hybrid frequency modulation strategy, only one low-voltage unit adopts pulse width modulation (PWM), which causes the problem of switching loss and uneven heat distribution between the two low-voltage units. At the same time, the output power of the conventional modulation strategy is unbalanced. Aiming to resolve the above problems, a modified hybrid modulation strategy and a power balance control method under the strategy is pr

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Chang, Yating, Xianglian Xu, Xiaobei Yin, and Yu He. "Research of Modulation and Control Strategy of Modular Multilevel Inverter." Journal of Physics: Conference Series 2005, no. 1 (2021): 012173. http://dx.doi.org/10.1088/1742-6596/2005/1/012173.

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Kim, Hongryeol, Joomin Kim, and Daewon Kim. "Rate modulation strategy for behaviors with hybrid robot control architecture." IFAC Proceedings Volumes 37, no. 12 (2004): 303–8. http://dx.doi.org/10.1016/s1474-6670(17)31485-4.

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Nabilah, Aisyah, Azri Maaspaliza, Jidin Auzani, and Z. Aihsan M. "A new optimal DTC switching strategy for open-end windings induction machine using a dual-inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 3 (2021): 1405–12. https://doi.org/10.11591/ijpeds.v12.i3.pp1405-1412.

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Early in 1980s, fast torque dynamic control has been a subject of research in AC drives. To achieve superior torque dynamic control, two major techniques are used, namely field oriented control (FOC) and direct torque control (DTC), spurred on by rapid advances in embedded computing systems. Both approaches employ the space vector modulation (SVM) technique to perform the voltage source inverter into over modulation region for producing the fastest torque dynamic response. However, the motor current tends to increase beyond its limit (which can damage the power switches) during the torque dyna

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Meng, Gaojun, Yang Lu, Haitao Liu, Yuan Ye, Yukun Sun, and Wenyi Tan. "Adaptive Droop Coefficient and SOC Equalization-Based Primary Frequency Modulation Control Strategy of Energy Storage." Electronics 10, no. 21 (2021): 2645. http://dx.doi.org/10.3390/electronics10212645.

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In order to efficiently use energy storage resources while meeting the power grid primary frequency modulation requirements, an adaptive droop coefficient and SOC balance-based primary frequency modulation control strategy for energy storage is proposed. Taking the SOC of energy storage battery as the control quantity, the depth of energy storage output is adaptively adjusted to prevent the saturation or exhaustion of energy storage SOC. The balanced control strategy is introduced to realize the rational utilization of resources and the fast balance of SOC in the process of primary frequency m

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Sun, Jin, Lei Zhang, You Min Wang, and Jun Chao Zhang. "An Improved Space Vector Modulation Method of Matrix Converter." Applied Mechanics and Materials 389 (August 2013): 796–801. http://dx.doi.org/10.4028/www.scientific.net/amm.389.796.

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Based on study of space vector modulation, cca novel over-modulation strategy of matrix converter is proposed for the problem of low voltage transfer ratio of matrix converter. According to the relation of the voltage space vector trace and hexagon trace vector, the control level is divided into linear modulation level and over-modulation level. The over modulation strategy is achieved by transforming the voltage modulation coefficient. The simulation results demonstrate that the voltage transfer ratio can be up to 0.955.

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Hu, Linlin, and Long Fu. "Primary frequency modulation of microgrid based on consistent droop control method." Journal of Physics: Conference Series 2387, no. 1 (2022): 012017. http://dx.doi.org/10.1088/1742-6596/2387/1/012017.

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Abstract The rapid development of new energy sources gradually challenges the frequency stability of power systems. This article focuses on how to realize the frequency modulation control of the power grid under the fluctuation of the power grid. In order to improve the frequency stability of the microgrid system, based on the traditional droop control and consensus algorithm research, this paper proposes a microgrid primary frequency modulation based on the consistency droop control method. This control strategy improves the consistency of the progressive correction term to realize the contro

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Gao, Qiang, Matti Linjama, Miika Paloniitty, and Yuchuan Zhu. "Investigation on positioning control strategy and switching optimization of an equal coded digital valve system." Proceedings of the Institution of Mechanical Engineers, Part I: Journal of Systems and Control Engineering 234, no. 8 (2019): 959–72. http://dx.doi.org/10.1177/0959651819884749.

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This article concerns high accuracy positioning control with switching optimization for an equal coded digital valve system. Typically, pulse number modulation control cannot realize micro-positioning due to the characteristics of step-wise flow variation, therefore, a new position controller consisting of a model-based pulse number modulation and a differential pulse width modulation strategy is proposed to control the position of a hydraulic cylinder at high and low velocity cases, respectively. In addition, in order to solve several problems caused by the pulse number modulation and differe

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Lu, Jing, and Ming Shen. "Research on Limit-Trajectory Over-Modulation Strategy of Two Stage Matrix Converter." Applied Mechanics and Materials 599-601 (August 2014): 1648–51. http://dx.doi.org/10.4028/www.scientific.net/amm.599-601.1648.

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Aim at solving the problem is poor quality of waveforms and that of complicated modulation strategy in two stage matrix converter. The method is that Limit-Trajectory over-modulation strategy is adopted in inverter to ensure linear modulation in all over-modulation regions and space vector pulse width modulation is adopted in rectifier. This simpler control algorithm reduces memory space and linear calculation is instead of look-up table. Simulation show that the voltage transfer ratio can be improved from 0.866 to 0.95 and the quality of output waveforms is greatly enhanced.

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Li, Wenkai, Jie Xie, Mengzhao Zhang, and Chunlin Guo. "Adaptive damping control strategy of virtual synchronous generator based on fuzzy control." Journal of Physics: Conference Series 2121, no. 1 (2021): 012038. http://dx.doi.org/10.1088/1742-6596/2121/1/012038.

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Abstract Based on the topology and small signal model of virtual synchronous generator, the influence of virtual inertia and damping coefficient on transient process is analysed. In order to solve the problem of overshoot with small damping coefficient and slow response with large damping coefficient, a fuzzy control method is introduced, which can completely eliminate overshoot without affecting the response speed. Another fuzzy controller is designed to optimize the output of the virtual synchronous generator in the primary frequency modulation process according to the SOC of the energy stor

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Zhang, Chaoyu, Jiabin Li, Shiyi Liu, et al. "Coordinated Frequency Modulation Control Strategy of Wind Power and Energy Storage Considering Mechanical Load Optimization." Energies 17, no. 13 (2024): 3198. http://dx.doi.org/10.3390/en17133198.

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When a doubly fed induction generator (DFIG) participates in primary frequency modulation by rotor kinetic energy control, the torque of the generator is changed sharply and the mechanical load pressure of the shaft increases rapidly, which aggravates the fatigue damage of shafting. In order to alleviate the fatigue load of shafting, energy storage was added in the primary frequency modulation of a wind turbine, and a coordinated frequency modulation control strategy of wind power and energy storage based on fuzzy control was proposed. The wind-storage frequency modulation power command was al

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Wu, Junjuan, Wei Zhang, Xiaofeng Sun, and Xinyu Su. "Research on Reactive Power Optimization Control of a Series-Resonant Dual-Active-Bridge Converter." Energies 15, no. 11 (2022): 3856. http://dx.doi.org/10.3390/en15113856.

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In order to meet the demands of the bidirectional transmission of electric vehicle charger power, a series-resonant dual-active-bridge (DAB) converter is investigated in this paper. Firstly, the active and reactive power and zero voltage switching (ZVS) conditions of the full-bridge arm under extended phase-shift modulation, dual phase-shift modulation and triple phase-shift modulation are analyzed. Secondly, with the minimum reactive power as the optimization objective, the extended phase shift (EPS) is finally selected as the modulation method after comparing the minimum reactive power under

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Buzzelli, A., P. de Bernardis, S. Masi, N. Vittorio, and G. de Gasperis. "Optimal strategy for polarization modulation in the LSPE-SWIPE experiment." Astronomy & Astrophysics 609 (January 2018): A52. http://dx.doi.org/10.1051/0004-6361/201730754.

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Context. Cosmic microwave background (CMB) B-mode experiments are required to control systematic effects with an unprecedented level of accuracy. Polarization modulation by a half wave plate (HWP) is a powerful technique able to mitigate a large number of the instrumental systematics. Aims. Our goal is to optimize the polarization modulation strategy of the upcoming LSPE-SWIPE balloon-borne experiment, devoted to the accurate measurement of CMB polarization at large angular scales. Methods. We departed from the nominal LSPE-SWIPE modulation strategy (HWP stepped every 60 s with a telescope sca

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Jia, Yilin, Rui Hao, Litao Guo, Lei Gao, Yongchao Sun, and Weidong Li. "The research of declared primary frequency capacity and control strategy for electrical fused magnesium furnace load." Journal of Physics: Conference Series 2588, no. 1 (2023): 012005. http://dx.doi.org/10.1088/1742-6596/2588/1/012005.

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Abstract As a potential control resource of the load side, fused magnesium load can effectively make up for the loss of the primary frequency modulation capacity of the system, in which the conventional units are replaced by new energy sources. However, the capacity of fused magnesium load is closely related to the operating condition and changes dynamically. It is necessary to accurately characterize its capacity and determine the optimal declared capacity of participating in frequency modulation service. According to the technical regulations of primary frequency modulation service, the basi

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Donfack, Clément Kengnou, Charles Hubert Kom, Jean Jacques Mandeng, and Félix Paune. "Design of a New Duty Cycle Modulation to Improve the Energy Quality of an Insulated Production System." European Journal of Electrical Engineering 23, no. 4 (2021): 311–19. http://dx.doi.org/10.18280/ejee.230404.

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In this article, we propose a new strategy for controlling three-phase inverters of renewable energy sources, based on the Duty Cycle Modulatiom (DCM) control using the Park and Fortescue transformation (DCM-dq-dih). Our goals in setting and using this strategy are, on the one hand, to induce a lower harmonic rate as compared to the SPWM (Sinusoidal Pulse Width Modulation) strategy and on the other hand, this control technique enables the inverter to deliver balanced voltages, be it in the event of load unbalance. Our design is built on the basis of the known mode of DCM control of single-phas

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Jia, Yu, Zhenkui Wu, Jihong Zhang, Peihong Yang, and Zilei Zhang. "Control Strategy of Flywheel Energy Storage System Based on Primary Frequency Modulation of Wind Power." Energies 15, no. 5 (2022): 1850. http://dx.doi.org/10.3390/en15051850.

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As a form of energy storage with high power and efficiency, a flywheel energy storage system performs well in the primary frequency modulation of a power grid. In this study, a three-phase permanent magnet synchronous motor was used as the drive motor of the system, and a simulation study on the control strategy of a flywheel energy storage system was conducted based on the primary frequency modulation of wind power. The speed and current double closed-loop control strategy was used in the system start-up phase, and the power and current double-closed-loop control strategy were used in the pow

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Behera, Kuldeep, and Subrat Behera. "A Novel Control Strategy of Indirect Matrix Converter Using Space Vector Modulation." International Journal of Power Electronics and Drive Systems (IJPEDS) 7, no. 3 (2016): 926. http://dx.doi.org/10.11591/ijpeds.v7.i3.pp926-935.

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This paper introduces a control scheme of Indirect Matrix Converter which includes space vector modulation to stabilize the frequency variations. The terminal voltage and frequency of any synchronous machine can be controlled easily with this scheme. Further the control strategy is proposed and implemented in Matlab/Simulink Embedded system which gives significant better performance compared to conventional control technique like better Total Harmonic Distortion (THD), more output voltage with same Modulation Index, less switching stress and less switching loss. This method might prove effecti

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Aisyah, Nabilah, Maaspaliza Azri, Auzani Jidin, M. Z. Aihsan, and MHN Talib. "A New Optimal DTC Switching Strategy for Open-End Windings Induction Machine using Dual Inverter." International Journal of Power Electronics and Drive Systems (IJPEDS) 12, no. 3 (2021): 1405. http://dx.doi.org/10.11591/ijpeds.v12.i3.pp1405-1412.

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<span>Since the early 1980s, fast torque dynamic control has been a subject of research in AC drives. To achieve superior torque dynamic control, two major techniques are used, namely Field Oriented Control (FOC) and Direct Torque Control (DTC), spurred on by rapid advances in embedded computing systems. Both approaches employ the space vector modulation (SVM) technique to perform the voltage source inverter into over modulation region for producing the fastest torque dynamic response. However, the motor current tends to increase beyond its limit (which can damage the power switches) dur

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Li, Kai. "Study on primary frequency modulation control strategy based on wind-fire cooperation." Journal of Physics: Conference Series 2785, no. 1 (2024): 012070. http://dx.doi.org/10.1088/1742-6596/2785/1/012070.

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Abstract Due to the increasing proportion of wind power in the power system, the wind turbine should have the ability of primary frequency modulation when integrated into the power system. At the wind turbine level, different methods are adopted according to different wind speeds, which can get the wind turbine fully joined in the system. Secondly, this paper gives full consideration to the characteristics of thermal and wind power units and proposes a joint primary frequency modulation method between the thermal and wind farms. The output of wind and thermal power is determined by adding a fr

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Carvalho, Edivan Laercio, Luiz Henrique Meneghetti, Emerson Giovani Carati, Jean Patric da Costa, Carlos Marcelo de Oliveira Stein, and Rafael Cardoso. "Asymmetrical Pulse-Width Modulation Strategy for Current-Fed Dual Active Bridge Bidirectional Isolated Converter Applied to Energy Storage Systems." Energies 13, no. 13 (2020): 3475. http://dx.doi.org/10.3390/en13133475.

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This paper proposes an asymmetrical pulse-width modulation (PWM) strategy for current-fed dual-active bridge (CFDAB) converters applied to energy storage systems (ESS). The ESS application considers low-voltage and high-capacity batteries, for low-power applications, such as data centers, residential photovoltaic systems (PV), and uninterruptable power supplies (UPS). The proposed modulation permits the use of an isolation transformer with negligible leakage inductance and, therefore, avoids the use of auxiliary circuits such as snubbers, active-clamp, or resonant cells. Hence, the converter i

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Xu, Shi-Zhou, and Feng-You He. "Thermal Equilibrium Dynamic Control Based on DPWM Dual-Mode Modulation of High Power NPC Three-Level Inverter." Mathematical Problems in Engineering 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/5842947.

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In some special applications of NPC three-level inverters, such as mine hoist, there exist special conditions of overloading during the whole hoisting process and large overload in starting stage, during which the power-loss calculation of power devices and thermal control are important factors affecting the thermal stability of inverters. The principles of SVPWM and DPWM were described in this paper firstly, based on which the dynamic power losses of the two modulations of hoist in single period were calculated. Secondly, a thermal equilibrium dynamic control based on DPMW dual-mode modulatio

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Lei, Jiaxing, Chaofan Wei, and Shuang Feng. "Input Disturbance Suppression for Unidirectional Matrix Converter with a Stability-Enhancing Modulation Scheme." Energies 12, no. 13 (2019): 2625. http://dx.doi.org/10.3390/en12132625.

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This paper proposes an input voltage disturbance suppression control strategy for the unidirectional matrix converter (UMC) with a new modulation scheme enhancing the stability. In the new scheme, the modulation index is directly, rather than reversely, proportional to the instantaneous amplitude of input filter capacitor voltages. Contrary to traditional schemes, the stability of the UMC with this new scheme is even better with the increase of the transferred active power, which is particularly suitable for applications with sinusoidal and balanced input conditions. As to the disturbed input

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Wang, Rutian, Fuxu Wang, Haining Pan, and Sutong Liu. "Hybrid Pulse Width Modulation Strategy of a High-Frequency Link Three-Phase Four-Leg Matrix Converter Based on Compensation Theory." Applied Sciences 10, no. 1 (2019): 39. http://dx.doi.org/10.3390/app10010039.

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A high-frequency link (HFL) three-phase four-leg matrix converter (MC) can output three-phase balanced voltage for unbalanced load conditions. It is an inverter with great development potential. This paper presents a hybrid pulse width modulation (HPWM) strategy for a four-wire matrix converter based on the fourth bridge leg compensation method. Firstly, the rear-stage topology of a high-frequency link three-phase four-leg matrix converter is decoupled into two sets of ordinary three-phase four-wire inverters. Then the compensation strategy is applied to separate the fourth bridge leg from the

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Stefanou, Antonios-Dimitrios, and Xanthippi Zianni. "Towards Optimizing Width Modulation for Maximum Thermoelectric Efficiency." Micromachines 14, no. 12 (2023): 2176. http://dx.doi.org/10.3390/mi14122176.

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Maximizing thermoelectric efficiency is typically addressed as identical to minimizing parasitic thermal conduction. Such an approach relies on the assumption that the adopted strategy mainly affects phonons, leaving electrons intact, and is not justified in many cases of non-uniform nanostructures such as width-modulated nanowaveguides, where both electrons and phonons are significantly affected by width modulation. Here, we address the question of maximizing the thermoelectric efficiency of this class of metamaterials by exploring the effect of the modulation extent on both electron and phon

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