This includes the ability to stack a large number of switches and coordinate their turn on/off transients, availability of control platforms that provide enough PWM channels, and ability to produce large space vector maps. This paper's main focus is to create a method for direct calculation of...
sinMapData < 0) SetInputB(false, true); else SetInputB(true, true); } void TB67H450Base::SetTwoCoilsCurrent(uint16_t _currentA_3300mAIn12Bits, uint16_t _currentB_3300mAIn12Bits) { /* * After SetFocCurrentVector calculation a 12bits value was mapped to 0~3300mA. * And due to ...
function[sys,x0,str,ts] = func_N_calculation(t,x,u,flag) %A=0;B=0; %C=0;N=0; globalA B C N; switchflag, case0, [sys,x0,str,ts]=mdlInitializeSizes; case1, sys=[]; case2, sys=[]; case3, sys=mdlOutputs(t,x,u,A,B,C,N); case4, sys=[]; case9, sys=[]; o...
4.2开关逻辑的实现如下图所示 functionpwm=fcn(Fs,Mag,ang,Sec,Vdc,clk)% Time synchronization with thesimulink clock.t=clk;% Vdc at workspace% General expression for the calculation of T1, T2 and T0.T1=(sqrt(3)*(Mag/Vdc))*sin(Sec*pi/3-ang)/Fs; T2=(sqrt(3)*(Mag/Vdc))*sin(ang -...
function[sys,x0,str,ts] = func_N_calculation(t,x,u,flag) %A=0;B=0; %C=0;N=0; globalA B C N; switchflag, case0, [sys,x0,str,ts]=mdlInitializeSizes; case1, sys=[]; case2, sys=[]; case3, sys=mdlOutputs(t,x,u,A,B,C,N); ...
在光伏发电技术日趋成熟的今天,三电平逆变电路已经成为逆变设备的首选结构。与传统的两电平逆变电路相比,主要有能够承受高电压、电压电流上升率低等优点[1]。在众多的控制策略中,SVPWM(空间矢量脉宽调制)具有调制比大、能够优化输出电压波形、易于数字实现、母线电压利用率高等特点,因而SVPWM控制方式受到了人们的普遍关注...
%===Sector calculation=== if (Vref1>0) sector = 1; end if (Vref2>0) sector = sector+2; end if (Vref3>0) sector = sector+4; end %=== X Y Z calculation=== X = sqrt(3)*Vbeta*Tpwm/Udc; Y = Tpwm/Udc*(3/2*V
is located.Afterwards,the seven-segment SVPWM modulation method is used to realize the SVPWM of a,b,and c three-phase voltages.By using the proposed algorithm,the determination of space vector sector and the calculation of duty cycle in SVPWM is simplified and the calculation time ...
function [sys,x0,str,ts] = func_N_calculation(t,x,u,flag) %A=0;B=0; %C=0;N=0; global A B C N; switch flag, case 0, [sys,x0,str,ts]=mdlInitializeSizes; case 1, sys=[]; case 2, sys=[]; case 3, sys=mdlOutputs(t,x,u,A,B,C,N); ...
In simplified SVPWM timing calculation is required for only one sector and therefore calculations are tremendously reduced and the same could be applied to different types of mul- tilevel inverters like flying capacitor and cascaded h bridge. By using simplified SVPWM a passive RL load and motor ...