基于APF的静止无功发生器应用研究
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摘要
针对目前井下电网中功率因数偏低、线路运行电流高、无功损耗大以及谐波污染等问题,设计出一种基于有源电力滤波器(APF)的静止无功发生器,采用APF不仅可以降低自身产生的谐波含量,而且还能够对负载的谐波和无功进行补偿,采用三电平技术和多重化技术,实现了有源滤波的功能。该装置在山东能源新矿集团翟镇煤矿井下掘进面和采区面的测试结果表明,其动态响应时间优于5ms,柔性启动技术保证了电网无冲击,模块化小型化设计易于安装,并可多台并列直挂电网运行,推广性较强。
In view of the current problems in coal mine power network,such as low power factor,the line of high running current,great reactive power loss and harmonic pollution,etc.,the paper designs a static var generator based on APF,reducing the content of self- generated harmonic,and achieving reactive compensation for harmonic of the load. The device adopts three- level technology and multiple technologies to realize active power filtering. The device has been tested in the heading face and mining face of Zhaizhen coal mine,and the test results show that,the dynamic response time is within 5ms,the soft start technology prevents the power system from impact starting,and the modular and miniaturization design ensures the easy installation and the direct hanging operation of multiple parallel APFs to power grid.
In view of the current problems in coal mine power network,such as low power factor,the line of high running current,great reactive power loss and harmonic pollution,etc.,the paper designs a static var generator based on APF,reducing the content of self- generated harmonic,and achieving reactive compensation for harmonic of the load. The device adopts three- level technology and multiple technologies to realize active power filtering. The device has been tested in the heading face and mining face of Zhaizhen coal mine,and the test results show that,the dynamic response time is within 5ms,the soft start technology prevents the power system from impact starting,and the modular and miniaturization design ensures the easy installation and the direct hanging operation of multiple parallel APFs to power grid.
引文
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[3]王祖麟,高维福,盛颖飞.电力系统低压无功补偿技术[J].工业控制计算机,2013(8):117-118.
[4]郭辉,兰志恒,宋建成.煤矿井下低压无功补偿技术探析[J].电气开关,2013(5):9-10,19.
[5]胡进辉.变电站无功补偿技术研究与应用[D].北京:华北电力大学,2013.
[6]熊卿,张哲,尹项根,文明浩,王存平.新型配电变一体化静止无功补偿技术研究[J].电力系统保护与控制,2012(10):59-64.
[7]杨赛强.TCR+FC型无功补偿技术在矿井提升系统中的应用研究[D].长沙:中南大学,2013.
[8]聂贤葛.新型动态无功补偿装置在电网中的应用[J].大众用电,2013(12):20-21.
[9]韩宇泽,王立国.基于模糊自适应控制的接触器过零投切系统研究[J].电测与仪表,2014(15):23-28.
[10]王存平.配电网节能补偿应用中储能逆变控制技术研究[D].武汉:华中科技大学,2013.