With　the　widespread　use　of　distributed　generation,　a　large　number　of　power　electronic　switches　and　nonlinear　loads　greatly　deteriorate　the　power　quality　of　the　micro-grid(MG).　In　order　to　effectively　address　harmonics　problems　in　the　micro-grid,　a　novel　control　topology　of　the　unified　power　quality　conditioner　based　on　photovoltaic　grid-connected　generation　and　super-capacitor　energy　storage　(SCPV-UPQC)　is　proposed　in　this　paper.　The　control　system　is　able　to　calculate　the　appropriate　compensation　amount　by　extracting　the　fundamental　and　harmonic　components　in　the　current　and　voltage　signals　of　the　PCC　point.　And　a　fuzzy　logic　PI　control　method　is　proposed　to　adaptively　adjust　the　parameters　of　the　traditional　PI　controller　to　mitigate　the　harmonic　distortion　and　other　power　quality　problems　of　the　MG.　The　proposed　SCPV-UPQC　structure　based　on　the　fuzzy　PI　control　strategy　is　simulated　in　MATLAB/Simulink　under　a　typical　MG　model,　and　the　results　illustrate　that　this　method　can　significantly　suppress　the　harmonics　in　the　MG,　verifying　the　validity　and　feasibility　of　the　proposed　UPQC　structure　and　control　strategy.　The　method　can　provide　helpful　assistance　for　harmonic　control　of　the　future　AC　or　DC　MG　and　even　multiple　parallel　MGs.