A sliding mode control scheme is presented in αβ frame for grid-side PWM rectifiers in wind power generation systems. The positive and negative sequence voltages are needed to design the controller, nevertheless, th...
详细信息
In this paper, a novel fault detection scheme is presented for networked controlsystems with random delays and noises. Since the random noises and delays existed in networked controlsystem are probably non- Gaussian...
详细信息
A novel control method is proposed for networked controlsystems with nonlinear process,probably non-Gaussian process noise and time *** performance index of closed loop controlsystem consists of entropy,mean value a...
详细信息
A novel control method is proposed for networked controlsystems with nonlinear process,probably non-Gaussian process noise and time *** performance index of closed loop controlsystem consists of entropy,mean value and control energy *** stochastic control methods for networked controlsystems are given under the same general *** method utilizes gradient optimal techniques to obtain an optimal control law,and the stability of closed loop systems is *** other method gives the optimal solution of control law *** implementation issues are *** sliding window techniques and non-parametric probability density function estimation techniques are employed to obtain the entropy of tracking error *** a result,the controller can be on-line ***,the methodology is illustrated by simulations.
A sliding mode control scheme is presented in αβframe for grid-side PWM rectifiers in wind power generation systems. The positive and negative sequence voltages are needed to design the controller, nevertheless, the...
详细信息
ISBN:
(纸本)9781424427994
A sliding mode control scheme is presented in αβframe for grid-side PWM rectifiers in wind power generation systems. The positive and negative sequence voltages are needed to design the controller, nevertheless, the positive and negative sequence currents are not needed. This scheme is compared with the dual current control scheme in the rotating frame d-q. The simulation results show that sliding mode control scheme can realize unit power factor operation when the amplitude is unbalanced.
In most batch processes, quality controlmeasurements cannot be completed before the next batch operation. Thus, the corrective step is often delayed by one batch or more. The uncertain duration of delay with stochast...
详细信息
ISBN:
(纸本)9781424454402
In most batch processes, quality controlmeasurements cannot be completed before the next batch operation. Thus, the corrective step is often delayed by one batch or more. The uncertain duration of delay with stochastic characteristics can be treated as a random variable of unknown distribution. Coupled with inaccurate process models, the delay may lead to significant process output variations even with EWMA controllers. This paper proposes a new method of handling the uncertain metrology delay and its ensuing complications. The run-to-run controller is designed based on minimization of error entropy, and the probability density function of the tracking error can be estimated by the historical operation data. The simulation example demonstrates the effectiveness of the proposed method.
This paper presents a new technique for software pipelining using the Petri nets. Our technique called the Petri Net Pacemaker (PNP) can create near optimal pipelines with less algorithmic effort than other techniques...
详细信息
ISBN:
(纸本)9780818652806
This paper presents a new technique for software pipelining using the Petri nets. Our technique called the Petri Net Pacemaker (PNP) can create near optimal pipelines with less algorithmic effort than other techniques. The pacemaker is a novel idea which exploits the behavior of Petri nets to model the problem of scheduling operations of a loop body for software pipelining.< >
暂无评论