光伏发电一般通过逆变器接入电网，这类电力电子器件的频繁开通和关断，不容易产生谐波污染。（  ）

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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69531' and id < 4505164 and id<>'4505164' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69531' and id > 4505164 and id<>'4505164' order by id asc limit 5