Patent
Predictive control-based PWM rectifier control method
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The article was published on 2013-06-12. It has received 5 citations till now. The article focuses on the topics: PWM rectifier & Model predictive control.read more
Citations
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Patent
Voltage-type PWM (pulse-width modulation) rectifier output power control method under power grid unsymmetrical fault
Shi Yanyan,Wang Meng +1 more
TL;DR: In this paper, a voltage-type PWM rectifier output power control method under a power grid unsymmetrical fault is presented. But the method is not suitable for the case of a single-input single-output (SISO) system.
Patent
Control device and control method of PWM (Pulse-Width Modulation) rectifier
TL;DR: In this article, a control method and a control device of a PWM rectifier is presented, which comprises the following steps of: step (1), determining line voltages uab, ubc, and uca expected to be output by the rectifier; step (2), determining switch vectors (ka, kb, and kc) for indicating command voltage vectors according to the polarities of uab and ubc and uCA, wherein the switch vectors include two nonzero vectors and two zero vectors, i.e., zero vectors.
Patent
Device for detecting voltage of three-phase neutral point clamped PWM (pulse-width modulation) inverter
TL;DR: In this article, a measurement device for detecting the voltage of a three-phase neutral point clamped PWM (pulsewidth modulation) inverter is presented. But the device is not suitable for the measurement of the output phase voltage.
Patent
Three-phase pulse width modulation (PWM) method
TL;DR: In this article, a three-phase pulse width modulation (PWM) method is proposed, which is characterized by comprising the following steps of: firstly finding out a line voltage output expectation Uxy which has the maximum absolute value in line voltage outputs of three phases and is a positive number; depending on the line voltageoutput expectation UXY which has a maximum absolute values and is the positive number, calculating comparison values of various phases of comparison counters; and feeding the obtained comparison values into the comparison counters, to implement the three-Phase PWM.
Patent
PWM rectifier current prediction control method containing dead-time compensation
TL;DR: In this article, a PWM rectifier current prediction control method containing dead-time compensation is proposed, which is based on a discretized mathematical model of a rectification circuit as a prediction model at a (k+1) moment.
References
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Patent
Electric power converting device and power converting method for controlling doubly-fed induction generator
TL;DR: In this article, an electric power converting device and power converting method for controlling doubly-fed induction generators, which provides a synchronous generator for generating auxiliary electric power independently of a doublyfed induction generator so as to generate electricity even in a system power-free environment, is presented.
Patent
Method and apparatus for estimating line inductance for PWM rectifier control
TL;DR: In this article, a rectifier is coupled between positive and negative buses and a plurality of input voltage sources, each pair is associated with one of the inputs voltage sources and the controller is further operable to estimate a line inductance seen by the rectifier based on the control signals and generate an inductance compensation gain factor for applying to the control loops.
Patent
Control method of three-phase voltage type PWM rectifier under unbalance voltage of power grid
Fei Lin,Qionglin Zheng,Yongjun Huang,Jilei Gao,Xiaojie You,Zhongping Yang,Ruixiang Hao,Liwei Zhang,Xianjin Huang,Hu Sun,Mingzhi He,Chenchen Wang,Hong Li +12 more
TL;DR: In this paper, a control method of a three-phase voltage type PWM rectifier under unbalance voltage of a power grid, relates to the technical field of power electrons.
Patent
Controller of exciting power-supply net sided converter for double-feedback speed-variable frequency-constant wind-driven generator
TL;DR: In this article, a dead-beat controller of side converter to excitation electrical source web of double-fed variable speed constant frequency wind generator is proposed, which controls current by deadbeat control based on predicted current control, turns the current command signal of dq coordinate to two-phase immobile coordinate to get positive and negative order current present value of alpha and beta axes.
Patent
Control system for induction motor
Katsuyuki Watanabe,勝之 渡邉 +1 more
TL;DR: In this article, the problem of providing a control system for an induction motor by a voltage-type PWM inverter, by which an efficiency drop can be suppressed at a light load irrespective of the kind of a load, is addressed.