The voltage stability of distributed photovoltaic generation system has a significant role in actual life. }hhc practical criterion of voltage instability for the 38()一220 V low-voltage distribution network was discussed the vicw- point of engineering. hhe PSC 八I} software was used to build a()} kV 3-bus distributed network simulation model contai- ning a grickconnected distributed photovoltaic power. ()n that basis.the influences on the load voltage stability were ana- ly}ed by considering various disturbances, such as the growth of load·sudden reduction of light intensity, rise in environ- mental temperature and the short circuit fault of the load bus. Simulation results show that when the load voltage is ap- proaching the limit of voltage stability, the sudden reduction of light intensity will make the load bus voltage lose stability while the influence of temperature change is very tiny the load bus voltage will recover the original value quickly after the short circ

分布式光伏发电并网系统电压稳定性研究_李升.caj

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