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In this paper, an operator-based robust perfect control for nonlinear semiconductor refrigeration device with uncertainties is considered. For the research about the properties of the semiconductor refrigeration, an aluminum plate with Peltier device is very representative. So, the perfect tracking control performance is investigated by using this device. The robust right coprime factorization approach...
In this paper, operator-based robust perfect control for nonlinear semiconductor refrigeration device with uncertainties is considered. For the research about the properties of the semiconductor refrigeration, an aluminum plate with Peltier device is very representative. So, the perfect tracking control performance is studied by using this device. The robust right coprime factorization approach is...
The paper design a current control based active power filter (APF) for improving power quality by reactive power compensation and harmonic filtering. The designed APF is based on a voltage source inverter (VSI), where the VSI is controlled by two loops, the voltage control loop and the current control loop. The voltage control loop is used to regulate the DC link capacitor voltage of the VSI. Via...
In this paper, a 100W PEM fuel cell as the primary power supply provides DC power for a Peltier based cooling process. For the fuel cell, there exist slow dynamic response and soft characteristic. Therefore, fuel cell based hybrid power system is designed, including fuel cell, battery, unidirectional DC-DC converter and bidirectional DC-DC converter. In order to reduce the slow dynamic response and...
This paper purposes an optimal configuration of the distributed hybrid renewable generations based the stand-alone micro-grid system, considering the diesel as the main control source. Due to the natural sources and load of user changes randomly and the nonlinearity of the power output by renewable generations, an intelligent optimization method based improved genetic algorithm and the control strategy...
In this paper, a robust tracking control design for nonlinear plants with perturbation is considered by using operator-based observers and robust right coprime factorisation approach. In real situations, there exist unknown uncertainties consisting of modeling errors and external disturbances. The robust right coprime factorization approach is convenient in researching input-output stability problems...
In connection with the random fluctuation and the intermittent problems of output power of photovoltaic (PV) power station and the gray prediction had a less effective on the strong volatility sequence, exponential smoothing was proposed to improve gray prediction model to predict the PV power generation. The gray prediction model is improved by using exponential smoothing method since the exponential...
In this paper, the system identification toolbox is used to identify the model of the DC motor. The identification results show that this method is simple and effective. In view of the optimization problem of the controller, an automatic optimization design method of PID parameters based on the Matlab environment is presented. This method applies active set algorithm to realize the optimization of...
This paper describes the research of NC2000 computer monitoring system in Xinjiang Xiabandi hydraulic power plant. The system adopts client/serve system structure; it realizes the remote signaling, remote measuring, remote control and real-time monitoring for the water-turbine generator set. Under the condition of single generate, Through analysis incompatibility in anti-disturbance and stability...
This paper mainly introduced the basic structure and design process of hardware and software of PV power station remote monitoring system data acquisition device, collected and monitored the photovoltaic power generation system voltage,current,temperature,gave the bidirectional current sensing circuit, temperature detection circuit, serial communications interface circuit and remote communication...
Almost sure exponential stability of stochastic neural networks with general saturation output functions (GSCNN) is studied, the results obtained in this paper generalize some existent ones. By adopting the approach of decomposing the state space to some sub-regions and by using the theory of stochastic dynamic system, some generalized stability algebraic criteria are obtained, and the attractive...
The stability problem, including stability, asymptotical stability, uniformly asymptotical stability, and the stabilization of a linear discrete time-varying control system are discussed. Based on the system's fundamental matrix, the equivalent conditions ensuring the time-varying system to be some stability properties are obtained, and using inequality techniques, Some new sufficient stability and...
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