少網(wǎng)孔配電網(wǎng)潮流計(jì)算ppt課件

1、BBB算法算法 BBB算法計(jì)算過程：算法計(jì)算過程：1 順流計(jì)算順著功率流向計(jì)算順流計(jì)算順著功率流向計(jì)算 目的目的 確定節(jié)點(diǎn)電壓確定節(jié)點(diǎn)電壓2 逆流計(jì)算逆著功率流向計(jì)算逆流計(jì)算逆著功率流向計(jì)算 目的目的 確定支路功率饋入與饋出確定支路功率饋入與饋出輻射型配電網(wǎng)輻射型配電網(wǎng)潮流算法潮流算法電壓模算法電壓模算法電壓模算法計(jì)算過程：電壓模算法計(jì)算過程：1 順流計(jì)算順著功率流向計(jì)算順流計(jì)算順著功率流向計(jì)算 目的目的 確定節(jié)點(diǎn)電壓模確定節(jié)點(diǎn)電壓模2 逆流計(jì)算逆著功率流向計(jì)算逆流計(jì)算逆著功率流向計(jì)算 目的目的 確定支路功率饋入與饋出確定支路功率饋入與饋出上述兩種方法稱為前推回代計(jì)算方法上述兩種方法稱為前推回

2、代計(jì)算方法少環(huán)配電網(wǎng)潮流算法少環(huán)配電網(wǎng)潮流算法 少環(huán)配電網(wǎng)少環(huán)配電網(wǎng):1配電網(wǎng)的重構(gòu)。配電網(wǎng)優(yōu)化過程配電網(wǎng)的重構(gòu)。配電網(wǎng)優(yōu)化過程2雙多電源供電。提高供電系統(tǒng)的可靠性雙多電源供電。提高供電系統(tǒng)的可靠性節(jié)點(diǎn)PVVSJLI)(IVSJLVEIZTSnEQnSn)(KZKZ EQnEQnSnJZKERnRRnSRnSnEQnJYYJJ1)()(IEE對線性多口網(wǎng)絡(luò)有：對線性多口網(wǎng)絡(luò)有：電流源少環(huán)輻射網(wǎng)絡(luò)對電流源少環(huán)網(wǎng)絡(luò)對電流源少環(huán)網(wǎng)絡(luò)VIEIZ)(多端口短路電流的計(jì)算多端口短路電流的計(jì)算線性多端口短路電流的計(jì)算線性多端口短路電流的計(jì)算VEIZEIZ0V0IVE端口短路電流端口短路電流端口開路電壓端口開

3、路電壓ZEI0V根據(jù)迭加原理根據(jù)迭加原理+線性多線性多端口短端口短路電流路電流的計(jì)算的計(jì)算ZEI0V短路電流+為端口電勢或端口開路電壓E電流源少環(huán)網(wǎng)絡(luò)電流源少環(huán)網(wǎng)絡(luò)+不為端口開路電壓EVIEIZ)(00VEIZ)(V0IE )(端口短路電流端口短路電流端口開路電壓端口開路電壓ZEZ0VEI)()()(0VE0IE對于功率源多口網(wǎng)絡(luò)對于功率源多口網(wǎng)絡(luò))()(IE0VE+E少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算+少環(huán)配電網(wǎng)潮流計(jì)算分為：少環(huán)配電網(wǎng)潮流計(jì)算分為：1有源輻射網(wǎng)的迭代有源輻射網(wǎng)的迭代 計(jì)算出有源輻射網(wǎng)內(nèi)部節(jié)點(diǎn)電壓和端口開路電壓計(jì)算出有源輻射網(wǎng)內(nèi)部節(jié)點(diǎn)電壓和端口開路電壓2端口回路迭代端口回路

4、迭代 計(jì)算出端口電流計(jì)算出端口電流 少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算1輻射網(wǎng)計(jì)算設(shè)置節(jié)點(diǎn)電壓初值進(jìn)展逆流過程計(jì)算，求得第T次迭代的各節(jié)點(diǎn)各饋出復(fù)功率值。順流過程計(jì)算。求得第T次迭代的各節(jié)點(diǎn)電壓值；收斂判別。假設(shè)相鄰兩次迭代的各節(jié)點(diǎn)的各饋出功率之差足夠小，收斂，計(jì)算并輸出端口開路電壓 否那么T=T+1，轉(zhuǎn)b。第一步計(jì)算)()0(0IE少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算2端口電流初值的計(jì)算第一步計(jì)算)()0(0IE知)()()0()0(0VE0IE設(shè)ZEZ0VEI)(端口短路電流的計(jì)算Z0IEI)()0()0(端口電流初值少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算1輻射網(wǎng)計(jì)算設(shè)置節(jié)點(diǎn)電壓初值進(jìn)展逆

5、流過程計(jì)算，求得第T次迭代的各節(jié)點(diǎn)各饋出復(fù)功率值。順流過程計(jì)算。求得第T次迭代的各節(jié)點(diǎn)電壓值；收斂判別。假設(shè)相鄰兩次迭代的各節(jié)點(diǎn)的各饋出功率之差足夠小，收斂，計(jì)算并輸出端口開路電壓 否那么T=T+1，轉(zhuǎn)b。第二步計(jì)算)()1(0IE少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算2端口電流的迭代計(jì)算第二步計(jì)算端口電流的計(jì)算VIEIZ)(EIZ線性化計(jì)算公式第k次迭代計(jì)算公式)()(kkEIZ)1()()(kkkEEE)()()(1kIEEk的計(jì)算與)()(kIEk)()1()(kkkIII端口電流 作用下的端口電壓源向量)1( kI時(shí)，計(jì)算結(jié)束。當(dāng)滿足 maxI端口電流 少環(huán)配電網(wǎng)潮流計(jì)算少環(huán)配電網(wǎng)潮流計(jì)算1輻射網(wǎng)計(jì)算設(shè)置節(jié)點(diǎn)電壓初值進(jìn)展逆流過程計(jì)算，求得第T次迭代的各節(jié)點(diǎn)各饋出復(fù)功率值。順流過程計(jì)算。求得第T次