一種電力電子孤島檢測和模擬電網(wǎng)交流源裝置的研究
于傳1,2,黃永明3,田可心3,周金博3
(1 安徽電氣工程職業(yè)技術(shù)學(xué)院,安徽 合肥 230051;2 國網(wǎng)安徽省電力有限公司 培訓(xùn)中心,安徽 合肥 230022;
3 東南大學(xué) 自動(dòng)化學(xué)院,江蘇 南京 210096)
摘 要:為了較好地利用光伏并網(wǎng)新能源,防止在使用過程中的孤島效應(yīng),提出了利用電力電子技術(shù)模擬傳統(tǒng)的RLC負(fù)載的有效方案,并針對孤島檢測提出了一種基于重復(fù)控制器與復(fù)合控制器的新型電力電子孤島檢測裝置,分析了控制系統(tǒng)設(shè)計(jì)流程,闡述了硬件電路設(shè)備的選定原則與方法。仿真結(jié)果表明,該裝置能夠滿足檢測新能源并網(wǎng)逆變器的防孤島功能要求,并可以模擬電網(wǎng)的種種狀態(tài),節(jié)省了電能,提高了裝置的利用率。
關(guān)鍵詞:分布式發(fā)電系統(tǒng);電力電子孤島;瞬時(shí)功率檢測;重復(fù)控制器與復(fù)合控制器
中圖分類號:TM73 文獻(xiàn)標(biāo)識碼:A 文章編號:1007-3175(2019)08-0035-07
Research on a Kind of Power Electronic Islanding Detection and Analog Power Network AC Device
YU Chuan1,2, HUANG Yong-ming3, TIAN Ke-xin3 , ZHOU Jin-bo3
(1 Anhui Electrical Engineering Professional Technique College, Hefei 230051, China;
2 Training Center of State Grid Anhui Electric Power Corporation, Hefei 230022, China;
3 School of Automation, Southeast University, Nanjing 210096, China)
Abstract: In order to make use of the photovoltaic grid connected new energy better and to prevent the islanding effect in the process of use, this paper proposed to use the power electronic technology to simulate the valid scheme of traditional RLC load. A new type of power electronic islanding detection device based on the repetition controller and recombination controller was proposed in allusion to the islanding detection. This paper analyzed the control system design flow and expounded the selected principle and method of the hardware circuit equipment. The simulation result shows that this device could meet the anti-islanding function requirement of detection new energy grid-connected inverter and simulate a variety of power grid state, so as to save the energy and to improve the use ratio of the device.
Key words: distributed generation system; power electronic island; instantaneous power detection; repetition controller and recombination controller
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