电力系统保护与控制
電力繫統保護與控製
전력계통보호여공제
POWER SYSTM PROTECTION AND CONTROL
2014年
14期
87-92
,共6页
配电网%功率量%潮流追踪%逆向追踪%阻抗匹配
配電網%功率量%潮流追蹤%逆嚮追蹤%阻抗匹配
배전망%공솔량%조류추종%역향추종%조항필배
distribution network%power quantities%power flow tracing%backward tracing%impedances matching
为了得到以负荷为主体的配电网中各功率量的关系，提出了逆向潮流追踪方法。利用功率分布理论，得到了表示每个负荷与对应损耗之间关系的功率链和每个负荷与对应汲取功率之间关系的功率流。给出正弦稳态形式的负荷-损耗分布系数、负荷-汲取功率流分布系数。将该方法应用到一典型的14节点配电网，得到各功率量的和与网络原有功率量相等的结论。算例分析结果表明，单电源网络中正弦稳态功率按照阻抗匹配原则来分配。
為瞭得到以負荷為主體的配電網中各功率量的關繫，提齣瞭逆嚮潮流追蹤方法。利用功率分佈理論，得到瞭錶示每箇負荷與對應損耗之間關繫的功率鏈和每箇負荷與對應伋取功率之間關繫的功率流。給齣正絃穩態形式的負荷-損耗分佈繫數、負荷-伋取功率流分佈繫數。將該方法應用到一典型的14節點配電網，得到各功率量的和與網絡原有功率量相等的結論。算例分析結果錶明，單電源網絡中正絃穩態功率按照阻抗匹配原則來分配。
위료득도이부하위주체적배전망중각공솔량적관계，제출료역향조류추종방법。이용공솔분포이론，득도료표시매개부하여대응손모지간관계적공솔련화매개부하여대응급취공솔지간관계적공솔류。급출정현은태형식적부하-손모분포계수、부하-급취공솔류분포계수。장해방법응용도일전형적14절점배전망，득도각공솔량적화여망락원유공솔량상등적결론。산례분석결과표명，단전원망락중정현은태공솔안조조항필배원칙래분배。
Method of backward power flow tracing is proposed for getting the relationship of each power quantity in distribution network. This paper gets power chain containing the relationship between each load and corresponding loss and power stream covering the relationship between each load and extracted power utilizing the theory of power distribution. Load-loss distribution coefficient, and load-extracted power flow distribution coefficient are given in the form of sinusoidal steady-state. This method is adopted to a typical 14-node distribution network, getting the conclusion that the sum of each power quantity equaling to the origin power quantity. Case study shows that in the single source power network, sinusoidal steady-state power follows the principle of impedance matching.
