大型屋顶光伏电站并网直流抑制方法_李圣清.pdfVIP

鐢垫皵浼犲姩 2015骞 绗?5鍗 绗?1鏈 ELECTRICDRIVE 2015 Vol.45 No.11 澶у瀷灞嬮《鍏変紡鐢电珯骞剁綉鐩存祦鎶戝埗鏂规硶 鏉庡湥娓 锛屾潹宄 锛屽緪澶╀繆 锛屽紶褰? 2 1 1 锛?.婀栧崡宸ヤ笟澶у 鐢垫皵涓庝俊鎭伐绋嬪闄紝婀栧崡鏍床412007锛 2. 鍥界綉婀樿タ渚涚數鍏徃锛屾箹鍗楀悏棣?16000锛 鎽樿锛氬ぇ鍨嬮潪闅旂鍨嬪厜浼忕數绔欑悍绾锋秾鐜帮紝浣嗗鍏剁洿娴佹敞鍏ョ殑鐩稿叧闂杩橀矞鏈夋秹鍙娿€傛彁鍑轰竴绉嶅ぇ鍨嬮潪闅旂 鍨嬪厜浼忕數绔欏苟缃戠洿娴佸垎閲忔姂鍒舵柟娉曘€傞鍏堝垎鏋愮郴缁熷苟缃戠洿娴佸垎閲忎笌绯荤粺鍐匰VG 鐩存祦渚х數瀹瑰熀棰戠汗娉㈢數鍘嬬殑 绾挎€у叧绯伙紝缁ц€屽SVG 鐩存祦渚у熀棰戠數鍘嬬粡杩嘾q 鍙樻崲鍜孡PF 婊ゆ尝澶勭悊锛屾渶鍚庡鍏舵瀯寤洪棴鐜礋鍙嶉锛屽湪娑堥櫎姝ょ汗 娉㈢數鍘嬬殑鍚屾椂闂存帴娑堥櫎骞剁綉鐩存祦鍒嗛噺IDC 銆備豢鐪熷強瀹為獙璇佸疄浜嗚鏂规鐨勫悎鐞嗘€у強鍙鎬с€ 鍏抽敭璇嶏細鍏変紡鐢电珯锛涢潪闅旂锛涗笁鐩搁€嗗彉鍣紱鐩存祦鍒嗛噺锛涢潤姝㈠悓姝ヨˉ鍋垮櫒 涓浘鍒嗙被鍙凤細TM464 鏂囩尞鏍囪瘑鐮侊細A DC Injection Elimination for Large Roof Photovoltaic Power Station 1 2 1 1 LISheng鈦僸ing 锛孻ANGJun 锛孹UTian鈦僯un 锛孼HANGBin 锛?.College of Electrical and Information Engineering锛孒unan University of Technology 锛孼huzhou 412007锛 Hunan 锛孋hina锛?.State Grid Xiangxi Power Supply Company 锛孞ishou 416000锛孒unan 锛孋hina锛 Abstract: Alotlarge鈦僺calenon鈦僫solatedroofPVpowerstationshaveemerged锛宐uttheDCinjectionproblemis rarelyinvolved.AmethodwasproposedtosuppressthisDCcomponent.Firstanalysisthelinearrelationshipbetween DCcomponentandcapacitorfundamentalfrequencyripplevoltageonSVGDCside 锛宼henthecapacitorfundamental frequencyripplevoltagethroughdq transformandLPFfiltering锛宖inallytheconstructclosedloopnegativefeedback锛 theDCcomponentcanbeeliminated.Thesimulationandexperimentprovetherationalityandfeasibilityofthescheme. Key words: photovoltaicpowerstation锛沶on鈦僫solated锛泃hreephaseinverter锛沝irect鈦僣urrentcomponents锛泂tatic synchronouscompensator 鍏変紡鐩存祦鍒嗛噺娉ㄥ叆灞炰簬鐢佃兘璐ㄩ噺闂銆傜洰 寰椾笉鍋垮け銆傛湁鐨勬彁鍑哄姞璁剧洿娴佸垎閲忔娴嬬數璺紝鏋 鍓嶈鏈哄閲忓湪5 MW 涓嬬殑澶у瀷鍘傜熆浼佷笟鍙婂晢涓氬缓 寤洪棴鐜礋鍙嶉鐨勬柟寮忔秷闄ょ洿娴佸垎閲忥蓟3锛姐€傜粨鏋勭畝鍗曪紝 绛戝眿椤跺厜浼忕數绔欐櫘閬嶉噰鐢ㄧ粍涓插紡涓夌浉闈為殧绂诲瀷 鐞嗚鏁堟灉杈冨ソ锛屼絾鍏舵姂鍒舵晥鏋滀弗