Journal Article10.1109/TIA.1983.4504163
A Microprocessor-Based Controller for a Three-Phase Controlled Rectifier Bridge
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TL;DR: In this article, a complete design of a microprocessor-based control circuit for a three-phase controlled rectifier bridge is presented, and a flowchart and program listing are provided.
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Abstract: A complete design of a microprocessor-based control circuit for a three-phase controlled rectifier bridge is presented. The Motorola M6802 microprocessor is used, and a flowchart and program listing are provided. Practical problems such as synchronization with noisy references are discussed, and modifications to the basic program are indicated. The basic control' philosophy developed can be extended to. the entire class of phase controlled systems, e.g., cyclo- converters, ac-voltge controllers, etc.
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Citations
Decreasing the commutation failure frequency in HVDC transmission systems
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A microprocessor-based DC drive control scheme using predictive synchronization
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Hardware design and implementation of Unity Power Factor Rectifiers using microcontrollers
Bidyut Mahato,P. R. Thakura,Kartick Chandra Jana +2 more
- 01 Dec 2014
TL;DR: A hardware design of phase controlled rectifier has been implemented in an economical manner in power electronics laboratory using microcontroller, which is better than uncontrolled rectifier in the aspect of harmonics generated as well as controlled DC output.
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An efficient software-controlled PLL for low-frequency applications
Ahmed El-Amawy,Ali Mirbod +1 more
TL;DR: It is shown that SCPLLs can offer several advantages over pure hardware implementations and can efficiently substitute for the conventional hardware PLL used for timing and clock frequency multiplication in the control circuit of a power converter.
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A General-Purpose Microprocessor-Based Control Circuit for a Three-Phase Controlled Rectifier Bridge
Ali Mirbod,Ahmed El-Amawy +1 more
TL;DR: A novel general-purpose microprocessor-based control circuit for a three-phase controlled rectifier is presented and the performance exhibited by the controller is superior to previously presented circuits.
11
References
The Phase-Locked Oscillator - A New Control System for Controlled Static Convertors
TL;DR: In this paper, it has been shown that it is possible to operate a convertor on a very weak (high impedance) ac system; one principal reason is inherent harmonic instability caused by the direct dependence of the control system on ac line voltage and its distortion.
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Microcomputer-Controlled Single-Phase Cycloconverter
Daljit Singh,Richard G. Hoft +1 more
TL;DR: In this article, a microcomputer was used to generate the gating signals for a single-phase-to-single-phase cycloconverter, keeping the same firing angle on all thyristors for a particular output voltage and frequency.
24
Dedicated-microprocessor scheme for thyristor phase control of multiphase convertors
TL;DR: A general-purpose dedicated-microprocessor firing controller scheme is proposed for multiphase thyristor convertors suitable for interfacing with microprocessor-based control systems and including provisions for limit checks and nonlinearity compensation.
21
Direct Digital Control of HVDC Converters
TL;DR: In this paper, the authors describe the hardware and operation of a direct digital control of static converters for HVDC transmission and show that the new control offers considerable advantage over the existing analog-based method in terms of speed, accuracy and reliability.
18
Theoretical Basis of a Digital Method of Grid Control for HVDC Converters
J. Arrillaga,G. Galanos +1 more
TL;DR: In this paper, a theory suitable for numerical control of static converters is developed as an alternative to the analog-type methods in existence, which introduces a new control parameter, the phase of firing, which unlike the conventional ones (?,s) is independent of the shape and unbalance of the voltage waveforms.
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