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(guò)程：算法計(jì)算過(guò)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(guò)程：電壓模算法計(jì)算過(guò)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(chēng)為前推回代計(jì)算方法上述兩種方法稱(chēng)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(guò)程配電網(wǎng)的重構(gòu)。配電網(wǎng)優(yōu)化過(guò)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(duì)線(xiàn)性多口網(wǎng)絡(luò)有：對(duì)線(xiàn)性多口網(wǎng)絡(luò)有：電流源少環(huán)輻射網(wǎng)絡(luò)對(duì)電流源少環(huán)網(wǎng)絡(luò)對(duì)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(xiàn)性多端口短路電流的計(jì)算線(xiàn)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(kāi)路電壓端口開(kāi)

3、路電壓ZEI0V根據(jù)迭加原理根據(jù)迭加原理+線(xiàn)性多線(xiàn)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(shì)或端口開(kāi)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(kāi)路電壓EVIEIZ)(00VEIZ)(V0IE )(端口短路電流端口短路電流端口開(kāi)路電壓端口開(kāi)路電壓ZEZ0VEI)()()(0VE0IE對(duì)于功率源多口網(wǎng)絡(luò)對(duì)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(kāi)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(kāi)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(guò)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(guò)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(kāi)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(guò)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(guò)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(kāi)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(xiàn)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(mǎn)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(guò)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(guò)程計(jì)算。求得第T次