Penetration of distributed generation (DG) makes the power flow of distribution network change greatly, so the traditional relay protection of distribution network is no longer suitable.
分布式发电（DG）的接入对配电网的规划和运行产生了深远影响，由于DG的存在，配电网检修负荷转移方案有了更多的选择。
Calculation results indicated that the multi-objectives optimization method and application software were helpful to raise the level of distribution network reactive power flow optimization.
计算结果表明，这种多目标无功优化方法及应用软件有利于提高配电网的无功优化水平。
For improving speed of distribution network optimum reconfiguration, quickly computing power loss using hybrid power flow calculation method is put forward.
为了提高重构优化速度，提出了利用混合潮流算法快速计算网损的方法。
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