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In order to study the effect of fillers with adsorption and drying on rubbish degradation, leachate production and water quality of leachate, five cylinder reactors for landfill disposal were built to simulate the operation of landfill, one reactor was used as contrast reactor, no filler added in it. Saw powder, activated carbon, zleolite and newspaper were added into another four reactors. In the...
An algorithm based on extended Kalman filter applied to the sensorless PMSM drives to estimate rotor position and speed are described in this paper. The EKF is an optimal recursive estimation algorithm for estimating the states of dynamic nonlinear systems. The system simulation model is established in MATLAB/Simulink. And the sensorless PMSM drive system is implemented on the DSP employed field oriented...
The time-domain and frequency-domain character of common-mode voltage in three-phase two level PWM-driven motor system is analyzed based on the detailed deduction of common-mode voltage expression in DC side and AC side. And the changes of common-mode voltage in motor side when using long cable between converter and motor is analyzed also. Theoretical predictions are verified using simulation with...
In order to study the effect of saw powder on reducing leachate production, accelerating degradation of rubbish, COD and NH3-N concentration of leachate, three cylinder reactors for anaerobic landfill disposal were built to simulate the operation of landfill. In the experiment, leachate quantity, settling height of rubbish layer, COD and NH3-N concentration were monitored. The results come from experiment...
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