Composite Energy Storage System with Photovoltaic Power Generation and UPS Function

CIRCUIT WAVEFORMS GATE SIGNALS OF INVERTER MOSFET Step-up transformer  The transformer rating is 12-0-12V,8A. AC (centre tapped) at primary and 230V,0.9A across the secondary winding. The 230V appearing across the secondary is the RMS value of the waveform and the peak value would be 230*1.414=325.22V. PROGRAM ( COMPILER MIKRO C) //used crystal of 4 MHz // duty_50% = (clock frequency/ (output_frequency*4* 2*1)) -1 =19999 #define modeswitch  PORTE.F8  //modeswitch #define relay LATC.F14  //relay #define charge_switch LATC.F13  //relay int boostvoltage,solarvoltage; int maximum_duty=5; int maximum_duty_solar=5; unsigned long int pwm_period, current_duty ; unsigned int current_duty2,current_duty3; unsigned int pwm_period2, pwm_period3; int f=0; void pins_init(void); void inverter_init(void); void solarboost_init(void); void charger_boost_init(void); void boostcontrol(void); void solar_boost_control(void); void off_inverter_and_boost(void); void on_inverter_and_boost(void); void mode_control(void); void main() { pins_init() ; inverter_init(); charger_boost_init(); solarboost_init();  ADC1_Init(); relay=0; while (1) {  if(f==0)  //boost mode duty {  boostcontrol(); }  solar_boost_control();  mode_control(); } } void mode_control(void) { if(modeswitch==0) { if(f==0)   //change to rectifier mode { f=1; off_inverter_and_boost();Delay_ms(1000); relay=1;charge_switch=1; } else     //change to inverter mode { relay=0;charge_switch=0;Delay_ms(1000); f=0;on_inverter_and_boost(); } } } void off_inverter_and_boost(void) { PWM1_Mc_Stop(); PWM_Stop(2); } void on_inverter_and_boost(void) { PWM1_MC_Start();  PWM_Start(2); } void solar_boost_control(void) { solarvoltage = ADC1_Read(1)*0.054; Delay_ms(1); if(solarvoltage>12) { current_duty2=current_duty2-1;   if(current_duty2<1)current_duty2=0; PWM_Set_Duty(current_duty2,  1); } else if (solarvoltage<14 ) { current_duty2=current_duty2+1;   if(current_duty2>maximum_duty_solar)current_duty2=maximum_duty_solar; PWM_Set_Duty(current_duty2,  1); } } void boostcontrol(void) { boostvoltage = ADC1_Read(0)*0.054; Delay_ms(100); if(boostvoltage>13) { current_duty3=current_duty3-1;   if(current_duty3<1)current_duty3=0;   PWM_Set_Duty(current_duty3, 2); } else if (boostvoltage<11 ) { current_duty3=current_duty3+1;   if(current_duty3>maximum_duty)current_duty3=maximum_duty;   PWM_Set_Duty(current_duty3, 2); } } void inverter_init(void) { current_duty=20000;                   //duty ratio 50% =99 pwm_period = PWM1_MC_Init(50, 0, 0x11, 0);      //enable 1L AND 1H pwm pins PWM1_MC_Set_Duty (current_duty, 1) ; PWM1_MC_Start(); DTCON1=511;     //DEAD TIME CONTROL   maximum 79 ////Delay_ms(2000); PWM1_Mc_Stop(); } void solarboost_init(void)  //pwm 2 { current_duty2  =1;      //80% IS 24,MAXIMUM  33  pwm_period2 = PWM_Init(30000 , 1, 1, 2);//FREQ,CHANNEL,PRESCALE,TIMER NAME PWM_Start(1); PWM_Set_Duty(current_duty2,  1);            // Set current duty for PWM1                         // initial value for current_duty1 } void charger_boost_init(void) //pwm 3 { current_duty3 = 1;                        // initial value for current_duty1 pwm_period3 = PWM_Init(30000, 2, 1, 3); PWM_Start(2); PWM_Set_Duty(current_duty3, 2); } void pins_init(void) //pwm 3 { TRISB.F0 = 1; TRISB.F1 = 1; //feed back TRISE.F8 = 1;   //mode switch TRISD.F0 = 0; TRISD.F1 = 0;  //pwm boost TRISE.F0 = 0; TRISE.F1 = 0;  //inverter TRISC.F14 = 0;   //RELAY TRISC.F13 = 0;   //charger mosfet }