The wind speed control system has an output current of 4-20mA from the wind speed transmitter,...
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The wind speed control system has an output current of 4-20mA from the wind speed transmitter, corresponding to a wind speed range of 0-10m/s. The acquisition circuit is shown in Figure 12 (a) (b), CSO: 1000H-10FH. The PWM controller circuit is shown in Figure 13, CS1: 110H-11FH. When the PWM duty cycle is 0, the corresponding wind speed is 0m/s, and the maximum opening is at 100%. Control the wind speed to 5m/s. Fuzzy PID is used for errors within 0.2m/s, and fuzzy PD is used for errors outside 0.2m/s. The initial parameters of the system are obtained using the extended response curve method, where the parameters t=1S, Tt=0.38, and the control degree is 1.1. The step response curve of the system is shown in Figure 14. Write a program and explain the selection of fuzzy parameters. IORD- IOW CSO AO D4-07- DO-D3- R/C CE 8 10 2 BIPOFF 10UIN D4-D11 20UN DO-D3 AGND (a) AD574A hardware circuit. DO D1 D2 PWM module D3 AD574A D4 12/8 DO D1- D2 D3 D4 DS D6 D7 P1.0- P1.1- P1.2- WR CS Figure 13 PWM controller circuit D5 D6 D7 АО VREAN VREFOUT 8 A1 A2 WR CS 10UW OUT -15V -0-10V -0-+20V 100k O 100k O 100k Q क (b) Wind speed transmitter hardware circuit Figure 12 data acquisition circuit. Wind speed control system 10UIN [500 A t wind speed transmitter Figure 14 Step response curve Register description of PWM controller: When CS=0, WR-0, A2-0, A1-0, A0-0, select the start register PWME. PWME=0 x 00, PWM does not work; PWME=0xff, PWM working. When CS=0, WR=0, A2=0, AI-1, A0=1, select 8 bits lower than the duty cycle register PWMDTYL; When CS=0, WR-0, A2=1, A1-0, A0-0, select 8 bits higher than the duty cycle register PWMDTYH. PWMDTY=0x0000, duty cycle 0%: PWMIDTY=0xf E, duty cycle 100% The duty cycle varies between 0% and 100%, and different duty cycles can be selected. The wind speed control system has an output current of 4-20mA from the wind speed transmitter, corresponding to a wind speed range of 0-10m/s. The acquisition circuit is shown in Figure 12 (a) (b), CSO: 1000H-10FH. The PWM controller circuit is shown in Figure 13, CS1: 110H-11FH. When the PWM duty cycle is 0, the corresponding wind speed is 0m/s, and the maximum opening is at 100%. Control the wind speed to 5m/s. Fuzzy PID is used for errors within 0.2m/s, and fuzzy PD is used for errors outside 0.2m/s. The initial parameters of the system are obtained using the extended response curve method, where the parameters t=1S, Tt=0.38, and the control degree is 1.1. The step response curve of the system is shown in Figure 14. Write a program and explain the selection of fuzzy parameters. IORD- IOW CSO AO D4-07- DO-D3- R/C CE 8 10 2 BIPOFF 10UIN D4-D11 20UN DO-D3 AGND (a) AD574A hardware circuit. DO D1 D2 PWM module D3 AD574A D4 12/8 DO D1- D2 D3 D4 DS D6 D7 P1.0- P1.1- P1.2- WR CS Figure 13 PWM controller circuit D5 D6 D7 АО VREAN VREFOUT 8 A1 A2 WR CS 10UW OUT -15V -0-10V -0-+20V 100k O 100k O 100k Q क (b) Wind speed transmitter hardware circuit Figure 12 data acquisition circuit. Wind speed control system 10UIN [500 A t wind speed transmitter Figure 14 Step response curve Register description of PWM controller: When CS=0, WR-0, A2-0, A1-0, A0-0, select the start register PWME. PWME=0 x 00, PWM does not work; PWME=0xff, PWM working. When CS=0, WR=0, A2=0, AI-1, A0=1, select 8 bits lower than the duty cycle register PWMDTYL; When CS=0, WR-0, A2=1, A1-0, A0-0, select 8 bits higher than the duty cycle register PWMDTYH. PWMDTY=0x0000, duty cycle 0%: PWMIDTY=0xf E, duty cycle 100% The duty cycle varies between 0% and 100%, and different duty cycles can be selected.
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Database Systems Design Implementation And Management
ISBN: 9780357673034
14th Edition
Authors: Carlos Coronel, Steven Morris
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