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iPDC-suite
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iPDC-suite/resources/applications.c

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/* -----------------------------------------------------------------------------
* applications.c
*
* iPDC - Phasor Data Concentrator
*
* Copyright (C) 2011-2012 Nitesh Pandit
* Copyright (C) 2011-2012 Kedar V. Khandeparkar
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Authors:
* Kedar V. Khandeparkar <kedar.khandeparkar@gmail.com>
*
* ----------------------------------------------------------------------------- */
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <math.h> /* fabs */
#include "parser.h"
#include "global.h"
#include "dallocate.h"
#include "applications.h"
/* ---------------------------------------------------------------------------- */
/* FUNCTION averageFrequency(): */
/* Computes average of frequency from all PMUs */
/* ---------------------------------------------------------------------------- */
float averageFrequency(struct data_frame *df) {
//struct data_frame *df = TSB[index].first_data_frame;
struct cfg_frame *temp_cfg = cfgfirst;
struct data_frame *temp_df;
float tempFreq = 0,avgFrequency;
int noOfPMU,i,j,count = 0;
pthread_mutex_lock(&mutex_cfg);
while(temp_cfg != NULL){
noOfPMU = to_intconvertor(temp_cfg->num_pmu);
count += noOfPMU;
temp_cfg = temp_cfg->cfgnext;
}
for(i = 0;i<(count*10-100);i++) {
temp_df = df;
temp_cfg = cfgfirst;
//printf("count = %d\n",count);
while(temp_cfg != NULL){
noOfPMU = to_intconvertor(temp_cfg->num_pmu);
if(temp_df != NULL) {
for(j = 0;j < noOfPMU; j++) {
//printf("a\n");
if(temp_cfg->pmu[j]->fmt->freq == '1') {
tempFreq += decode_ieee_single(temp_df->dpmu[j]->freq);
} else {
tempFreq += to_intconvertor(temp_df->dpmu[j]->freq);
}
}
temp_df = temp_df->dnext;
}
temp_cfg = temp_cfg->cfgnext;
}
}
pthread_mutex_unlock(&mutex_cfg);
avgFrequency = tempFreq/count;
return avgFrequency;
}
/* ---------------------------------------------------------------------------- */
/* FUNCTION frequencyInstability(): */
/* Computes weighted average of frequency from some PMUs */
/* ---------------------------------------------------------------------------- */
/*int frequencyInstability(struct data_frame *df) {
//struct data_frame *df = TSB[index].first_data_frame;
struct cfg_frame *temp_cfg = cfgfirst;
float tempFreq = 0,tempFc=0,totalFreq =0,totalHi=0;
float timeDiff = 20*1e-3;
float deltaFreq = 0;
int noOfPMUs = 0,totalPMUs=0,j;
while(temp_cfg != NULL){
totalPMUs += to_intconvertor(temp_cfg->num_pmu);
temp_cfg = temp_cfg->cfgnext;
}
int generatorPMUs = (totalPMUs*ratio) + 2; // Considered 1/5*noofPMUs+2 frequencies
int x = 0,*Hi;
Hi = randomGenerator(minHi,maxHi,generatorPMUs);
temp_cfg = cfgfirst;
while(temp_cfg != NULL) {
noOfPMUs = to_intconvertor(temp_cfg->num_pmu);
if(df != NULL) {
for(j=0;j<noOfPMUs;j++) {
if(temp_cfg->pmu[j]->fmt->freq == '1') {
if(x == generatorPMUs)
break;
tempFreq = decode_ieee_single(df->dpmu[j]->freq);
totalFreq += Hi[x]*tempFreq; // Sum of Hi*fi (numerator)
totalHi += Hi[x]; // Sum of Hi (denominator)
x++;
} else {
if(x == generatorPMUs)
break;
tempFreq = to_intconvertor(df->dpmu[j]->freq);
totalFreq += Hi[x]*tempFreq; // Sum of Hi*fi (numerator)
totalHi += Hi[x]; // Sum of Hi (denominator)
x++;
}
}
df = df->dnext;
}
temp_cfg = temp_cfg->cfgnext;
}
free(Hi);
if(fc == 0) {
fc = totalFreq/totalHi;
return 0;
} else {
tempFc = totalFreq/totalHi;
deltaFreq = fabs(fc-tempFc)/timeDiff;
/// Need to check deltaFreq < Threshold
fc = tempFc;
if(deltaFreq>delFThreshold)
return 1;
else return 0;
}
}
*/
/* ---------------------------------------------------------------------------- */
/* FUNCTION angleInstability(): */
/* Computes angular deviations from center of inertia */
/* ---------------------------------------------------------------------------- */
/*int angleInstability(struct data_frame *df) {
//struct data_frame *df = TSB[index].first_data_frame
struct cfg_frame *temp_cfg = cfgfirst;
float totalPi,totalTheta,localAreaPi,*localAreaTheta;
int totalPMUs,noOfPMU,noOfAreas,noOfPMUsInOneArea,tempTotalPMUs,*localAreaPowerSchedule,*individualPowerSchedule;
noOfPMUsInOneArea = 5;
totalPi= totalTheta =localAreaPi = 0;
while(temp_cfg != NULL){
totalPMUs += to_intconvertor(temp_cfg->num_pmu);
temp_cfg = temp_cfg->cfgnext;
}
tempTotalPMUs = totalPMUs;
float tt;
tt = (float)(totalPMUs*ratio)+2; // Number of areas eg 200*1/5+2 = 42
noOfAreas = nearbyint(tt/noOfPMUsInOneArea); // 42/5 = 8.4
int tt1 = (int)(noOfAreas); // 8
int rem = nearbyint(tt%noOfPMUsInOneArea);
if(fabs(tt-tt1) >0) { //8.4 - 8 =0.4
noOfAreas++; // noOfAreas = 9
}
localAreaTheta = malloc((noOfAreas + 1)*sizeof(float));
localAreaPowerSchedule = malloc((noOfAreas + 1)*sizeof(int));
individualPowerSchedule = randomGenerator(minPi,maxPi,tt);
temp_cfg = cfgfirst;
float tempAreaAngle,tempAreaPower;
unsigned int phnmr,noOfPMUs,pType;
int x,y,z,i,j; // x to track no of areas and y to track no of generators in those areas z for individual generator schedule
i = j = x = y = z = 0;
tempAreaPower = tempAreaAngle = 0;
unsigned char *d,*fp_left,*fp_right,*fx_left,*fx_right,*phasorType,polar;
fp_left = malloc(5*sizeof(unsigned char));
fp_right = malloc(5*sizeof(unsigned char));
fx_left = malloc(3*sizeof(unsigned char));
fx_right = malloc(3*sizeof(unsigned char));
phasorType = malloc(1*sizeof(unsigned char));
while(temp_cfg != NULL) { // Main Loop starts
if(df != NULL) {
noOfPMUs = to_intconvertor(temp_cfg->num_pmu);
for(j = 0;j < noOfPMUs;j++) {
phnmr = to_intconvertor(temp_cfg->pmu[j]->phnmr);
if(phnmr != 0) {
if(temp_cfg->pmu[j]->fmt->phasor == 1) { // Floating
for(i = 0;i<phnmr;i++) {
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0)&&(i%3 ==0)) { // pTYpe = 0 indicates V and only phase I is chosen with the assumption that 3 phase data is sent
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
tempAreaAngle += (getVoltagePhasorAngle(1,fp_left,fp_right,d,polar,temp_cfg,i,j)) * individualPowerSchedule[z]; // 1 -> floating pt
tempAreaPower += individualPowerSchedule[z];
z++;
y++;
if(y == rem && (x == noOfAreas - 1)) {
localAreaTheta[x] = tempAreaAngle/tempAreaPower;
x++;
break;
} else if(y == noOfPMUsInOneArea) {
localAreaTheta[x] = tempAreaAngle/tempAreaPower;
y = 0;
x++;
}
}
}
} else { // fixed point
for(i = 0;i < phnmr; i++){
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0)&&(i%3 ==0)) {
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
tempAreaAngle += getVoltagePhasorAngle(0,fp_left,fp_right,d,polar,temp_cfg,i,j)* individualPowerSchedule[z]; // 0 -> fixed pt
tempAreaPower += individualPowerSchedule[z];
z++;
y++;
if(y == rem && (x == noOfAreas - 1)) {
localAreaTheta[x] = tempAreaAngle/tempAreaPower;
localAreaPowerSchedule[x] = tempAreaPower;
x++;
break;
} else if(y == noOfPMUsInOneArea) {
localAreaTheta[x] = tempAreaAngle/tempAreaPower;
localAreaPowerSchedule[x] = tempAreaPower;
y = 0;
x++;
}
}
}
}
}
} // if df ends
df = df->dnext;
}
temp_cfg = temp_cfg->cfgnext;
} // Main loop ends
float centerAngle,totalPower;
centerAngle = totalPower = 0;
for (i = 0;i<noOfAreas;i++) {
centerAngle += localAreaTheta[i]*localAreaPowerSchedule[i];
totalPower += localAreaPowerSchedule[i];
}
centerAngle = centerAngle/totalPower;
char *violation = malloc(noOfAreas*sizeof(char));
for (i = 0;i<noOfAreas;i++)
{
if(fabs(centerAngle - localAreaTheta[i]) > angleThreshold)
violation[i] = '1';
else
violation[i] = '0';
}
free(violation);
free(localAreaTheta);
free(localAreaPowerSchedule);
free(individualPowerSchedule);
free(fp_right);
free(fp_left);
free(fx_right);
free(fx_left);
}
*/
/* ---------------------------------------------------------------------------- */
/* FUNCTION voltagePhasorAggregation(): */
/* Computes voltage phasor phasorAggregation */
/* ---------------------------------------------------------------------------- */
/*float voltagePhasorAggregation(struct data_frame *df) {
//struct data_frame *df = TSB[index].first_data_frame;
struct cfg_frame *temp_cfg = cfgfirst;
int i,j,noOfPMUs,totalPMUs;
totalPMUs = i = j = 0;
while(temp_cfg != NULL){
totalPMUs += to_intconvertor(temp_cfg->num_pmu);
temp_cfg = temp_cfg->cfgnext;
}
int generatorPMUs = (totalPMUs*ratio) + 4;
temp_cfg = cfgfirst;
unsigned int phnmr;
char polar;
float avgVoltageMagnitude = 0;
unsigned char *d;
int x = 0;
unsigned char *fp_left,*fp_right,*fx_left,*fx_right,*phasorType;
fp_left = malloc(5*sizeof(unsigned char));
fp_right = malloc(5*sizeof(unsigned char));
fx_left = malloc(3*sizeof(unsigned char));
fx_right = malloc(3*sizeof(unsigned char));
phasorType = malloc(1*sizeof(unsigned char));
int pType;
while(temp_cfg != NULL){ // Main Loop starts
if(df != NULL) {
noOfPMUs = to_intconvertor(temp_cfg->num_pmu);
for(j=0;j<noOfPMUs;j++) {
phnmr = to_intconvertor(temp_cfg->pmu[j]->phnmr);
if(phnmr != 0) {
if(temp_cfg->pmu[j]->fmt->phasor == 1) { // Floating
for(i = 0;i<phnmr;i++) {
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0) && (i%3 == 0)) {
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
avgVoltageMagnitude += getPhasorVolageMagnitude(1,fp_left,fp_right,d,polar,temp_cfg,i,j); // 1 -> floating pt
}
}
x++;
if(x == generatorPMUs)
break;
} else { // fixed point
for(i = 0;i < phnmr; i++){
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0) && (i%3 == 0)) {
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
avgVoltageMagnitude += getPhasorVolageMagnitude(0,fp_left,fp_right,d,polar,temp_cfg,i,j); // 0 -> fixed pt
}
}
x++;
if(x == generatorPMUs)
break;
}
}
}
df = df->dnext;
}
temp_cfg = temp_cfg->cfgnext;
} // Main loop ends
free(fp_right);
free(fp_left);
free(fx_right);
free(fx_left);
return avgVoltageMagnitude;
}
*/
/* ---------------------------------------------------------------------------- */
/* FUNCTION randomGenerator(): */
/* num random numbers array generated between min to max */
/* ---------------------------------------------------------------------------- */
int * randomGenerator(int max,int min,int num) {
int c =0,n,*coeff;
coeff = malloc((num+1)*sizeof(int));
while(1) {
n = rand()%max + min;
if(n>=min && n<= max) {
coeff[c] = n;
c++;
if(c == num)
break;
}
}
return coeff;
}
/* ---------------------------------------------------------------------------- */
/* FUNCTION getVoltagePhasorAngle(): */
/* get the phase angle */
/* ---------------------------------------------------------------------------- */
/*float getVoltagePhasorAngle(int format,char left[],char right[],unsigned char *d,char polar,struct cfg_frame *temp_cfg,int i,int j) {
float fp_r,fp_i,fp_angle;
unsigned int f_r,f_i;
if(format == 1) { // format indicates fixed or floating point
memset(left,'\0',5);
memset(right,'\0',5);
//d = df->dpmu[j]->phasors[i];
copy_cbyc (left,d,4);
left[4] = '\0';
d += 4;
copy_cbyc(right,d,4);
right[4] = '\0';
d += 4;
fp_r = decode_ieee_single(left);
fp_i = decode_ieee_single(right);
if(polar == '1') { // POLAR
fp_angle = fp_i;
} else { // rectangular
fp_angle = atan2f(fp_i, fp_r);
}
} else {
memset(left,'\0',3);
memset(right,'\0',3);
copy_cbyc (left,d,2);
left[2] = '\0';
d += 2;
copy_cbyc(right,d,2);
right[2] = '\0';
d += 2;
f_r = to_intconvertor(left);
f_i = to_intconvertor(right);
if(polar == '1') { // POLAR
fp_angle = f_i*1e-4; // Angle is in 10^4 radians
} else // RECTANGULAR
{
unsigned char *s = (unsigned char *)temp_cfg->pmu[j]->phunit[i];
s++;
unsigned char *buf = malloc(4*sizeof(unsigned char));
copy_cbyc (buf,(unsigned char *)s,3);
buf[3] = '\0';
unsigned long int l_phunit;
l_phunit = to_long_int_convertor1(buf);
l_phunit = l_phunit * 1e-5;
fp_r = l_phunit *f_r;
fp_i = l_phunit *f_i;
fp_angle = atan2f(fp_i, fp_r);
free(buf);
}
}
return fp_angle;
}
*/
/* ---------------------------------------------------------------------------- */
/* FUNCTION getPhasorVolageMagnitude(): */
/* get the phasor volage magnitude */
/* ---------------------------------------------------------------------------- */
/*float getPhasorVolageMagnitude(int format,char left[],char right[],unsigned char *d,char polar,struct cfg_frame *temp_cfg,int i,int j) {
float fp_r,fp_i,fp_magnitude;
unsigned int f_r,f_i;
if(format == 1) { // format indicates fixed or floating point
memset(left,'\0',5);
memset(right,'\0',5);
//d = df->dpmu[j]->phasors[i];
copy_cbyc (left,d,4);
left[4] = '\0';
d += 4;
copy_cbyc(right,d,4);
right[4] = '\0';
d += 4;
fp_r = decode_ieee_single(left);
fp_i = decode_ieee_single(right);
if(polar == '1') { // POLAR
fp_magnitude = fp_r;
} else { // rectangular
fp_magnitude = sqrt(fp_i*fp_i + fp_r*fp_r);
}
} else {
memset(left,'\0',3);
memset(right,'\0',3);
copy_cbyc (left,d,2);
left[2] = '\0';
d += 2;
copy_cbyc(right,d,2);
right[2] = '\0';
d += 2;
f_r = to_intconvertor(left);
f_i = to_intconvertor(right);
unsigned char *s = (unsigned char *)temp_cfg->pmu[j]->phunit[i];
s++;
unsigned char *buf = malloc(4*sizeof(unsigned char));
copy_cbyc (buf,(unsigned char *)s,3);
buf[3] = '\0';
unsigned long int l_phunit;
l_phunit = to_long_int_convertor1(buf);
l_phunit = l_phunit * 1e-5;
free(buf);
if(polar == '1') { // POLAR
fp_magnitude = f_r*l_phunit;
} else // RECTANGULAR
{
fp_r = l_phunit *f_r;
fp_i = l_phunit *f_i;
fp_magnitude = sqrt(fp_i*fp_i + fp_r*fp_r);
}
}
return fp_magnitude;
}
*/
/* ---------------------------------------------------------------------------- */
/* FUNCTION outOfStepDetection(): */
/* angle deviations */
/* ---------------------------------------------------------------------------- */
/*float outOfStepDetection(struct data_frame *df) {
//struct data_frame *df = TSB[index].first_data_frame;
struct cfg_frame *temp_cfg = cfgfirst;
int i,j,noOfPMUs,totalPMUs;
totalPMUs = i = j = 0;
while(temp_cfg != NULL){
totalPMUs += to_intconvertor(temp_cfg->num_pmu);
temp_cfg = temp_cfg->cfgnext;
}
int generatorPMUs = (totalPMUs*ratio);
if(generatorPMUs%2 == 1)
generatorPMUs +=1;
temp_cfg = cfgfirst;
if(OOSTD == '0') {
delta = malloc((generatorPMUs+1)*sizeof(float));
if(delta == NULL)
printf("no memory for delta\n");
slipFreuency = malloc((generatorPMUs+1)*sizeof(float));
if(slipFreuency == NULL)
printf("no memory for slipFreuency\n");
OOSTD = '1';
}
unsigned int phnmr;
char polar;
float phasorAngle = 0;
unsigned char *d;
int x = 0;
unsigned char *fp_left,*fp_right,*fx_left,*fx_right,*phasorType;
fp_left = malloc(5*sizeof(unsigned char));
fp_right = malloc(5*sizeof(unsigned char));
fx_left = malloc(3*sizeof(unsigned char));
fx_right = malloc(3*sizeof(unsigned char));
phasorType = malloc(1*sizeof(unsigned char));
int pType;
while(temp_cfg != NULL){ // Main Loop starts
if(df != NULL) {
noOfPMUs = to_intconvertor(temp_cfg->num_pmu);
for(j=0;j<noOfPMUs;j++) {
phnmr = to_intconvertor(temp_cfg->pmu[j]->phnmr);
if(phnmr != 0) {
if(temp_cfg->pmu[j]->fmt->phasor == 1) { // Floating
for(i = 0;i<phnmr;i++) {
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0) && (i%3 == 0)) {
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
phasorAngle = getVoltagePhasorAngle(1,fp_left,fp_right,d,polar,temp_cfg,i,j); // 1 -> floating pt
}
}
x++;
if(x == generatorPMUs)
break;
} else { // fixed point
for(i = 0;i < phnmr; i++){
copy_cbyc (phasorType,(unsigned char *)temp_cfg->pmu[j]->phunit[i],1);
pType = to_intconvertor1(phasorType);
if((pType == 0) && (i%3 == 0)) {
d = df->dpmu[j]->phasors[i];
polar = temp_cfg->pmu[j]->fmt->polar;
phasorAngle = getVoltagePhasorAngle(0,fp_left,fp_right,d,polar,temp_cfg,i,j); // 0 -> fixed pt
}
}
x++;
if(x == generatorPMUs)
break;
}
}
}
df = df->dnext;
}
temp_cfg = temp_cfg->cfgnext;
} // Main loop ends
free(fp_right);
free(fp_left);
free(fx_right);
free(fx_left);
return 0;
}*/
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