Results 11 to 20 of about 2,094 (182)
A high performance grid synchronization method for renewable energy grid-connected applications
Aiming at the problem of insufficient harmonic suppression capability for distributed renewable energy grid-connected application equipments, an efficient grid synchronous phase-locked loop(PLL) which will suppress harmonics is proposed. Firstly, a novel
Nanmu Hui, Haixiang Xu, Yingying Feng
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The quantisation noise contribution of a conventional FDC phase‐locked loop (PLL) is still high due to the only second‐order noise‐shaping capability.
Ryoga Iwashita +3 more
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Adaptive Impedance-Conditioned Phase-Locked Loop for the VSC Converter Connected to Weak Grid
In this paper, an adaptive version of the impedance-conditioned phase-locked loop (IC-PLL), namely the adaptive IC-PLL (AIC-PLL), is proposed. The IC-PLL has recently been proposed to address the issue of synchronisation with a weak AC grid by ...
Mostafa A. Hamood +2 more
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Reference Injected Phase-Locked Loops (PLL-RIs)
In this paper, we use synchronization to reduce phase-locked loop (PLL) phase noise and improve its locking behavior with an attenuated reference signal injection (RI) into a voltage-controlled CMOS delay-line ring-type oscillator. The transient and steady-state behavior of the PLL-RI are described by a nonlinear differential equation, which is further
Feiran Lei, Marvin H. White
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Voltage source converter based high-voltage direct current (VSC-HVDC) transmission technology has been extensively employed in power systems with a high penetration of renewable energy resources. However, connecting a voltage source converter (VSC) to an
Yongqing Meng +5 more
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Understanding of the Coherent Demodulation with Phase-Locked Loop
The phase-locked loop (PLL) technology is a very important technology in the communication field. With the development of electronic technology toward digitalization, the phase-locked processing of signal needs to be realized in digital way.
Zhai Bingcong
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An all-digital phase-locked loop based on variable phase accumulator
This paper presents a novel all-digital phase-locked loop with variable phase accumulator circuit structure. The design of the system is completed by using EDA technology, and the system simulation experiment is carried out by using ModelSim software ...
Yang Mengwei, Tian Fan, Shan Changhong
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Phase-Locked Loop with Inverse Tangent based Phase Detection
In this paper, a novel closed-loop synchronization algorithm is proposed based on the linear phase angle detection. The linear phase detection is performed by the inverse tangent (atan2) trigonometric function, while the frequency tracking is performed
STOJIC, D.
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A Single-Event-Hardened Scheme of Phase-Locked Loop Microsystems for Aerospace Applications
In order to improve the ability of the phase-locked loop (PLL) microsystem applied in the aerospace environment to suppress the irradiation effect, this study presents an efficient charge pump hardened scheme by using the radiation-hardened-by-design ...
Qi Xiang, Hongxia Liu, Yulun Zhou
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The study of stability criterion and interaction analysis for grid-connected inverter under weak grid is of great value. The previous stability criterion combined current loop, phase-locked loop and other loops together, and used the same external ...
Fang Liu +4 more
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