Demonstrative Research on Development of Islanding Prevention Methods under Clustered Conditions and Improvement of Power Quality August 17, 2006 The kansai electric power co., inc. Fuji electric systems co., ltd. Photovoltaic power generation technology research association
Organization of this project 2 DIW Request for Cooperation Memorandum of Understanding on this project NEDO Entrustment ChoHeng TEI PEA Implementation with cooperation *The Kansai Electric Power Co., Inc. Fuji Electric Systems Co., Ltd. Photovoltaic power generation technology research association
Large amount of systems is expected to penetrate into Thailand in the near future 3 Renewable and environmentally friendly energy source Climate and weather in Thailand Hot all through the year Affluent Irradiation Thailand is very suitable for Clustered Yearly average of daily irradiation in Thailand
Challenges for the Project (1) 4 Technical problems on grid connection 1. Possibility of islanding prevention malfunction could be increasing in clustered system. 2. Over voltage due to reverse power flow by a large number of could limit output. We develop new methods solving these subjects on both islanding prevention and voltage control.
Challenges for the Project (2) 5 Improvement of system s s generation efficiency under tropical condition 3. The most optimum combination of amorphous silicon and crystalline silicon can improve the system performance. We develop new methods to decide the most optimum combination according to its climate condition.
2004 2005 2006 Jan Feb Mar Jan Feb Mar Jan Feb Mar Project Schedule Apr May Jun Jul Aug Sep Oct Nov Dec Kickoff Meeting WS 1 Apr May Jun Jul Aug Sep Oct Nov Dec WS 2 Apr May Jun Jul Aug Sep Oct Nov Dec WS 3 Site survey Deliberation on system interconnection and installation works System installation Invitation Training Voltage control test Islanding Test 2,3 WS 4 (Oct. 28) Start operation!! Demonstrative research (continuous data collection) Islanding Test 1 withdrawal 6
Demonstrative Site Cho Heng Site 7 Cho Heng Rice Vermicelli Factory Co., Ltd. 19, Moo, Petkasam Road, Yaicha, Sampran, Nakhon Pathom 73110, Thailand TEL 03 422 5240, 03 432 1661~3 FAX 03 422 5241, 03 432 1660 Practical site for the subjects on Islanding prevention malfunction and Prevention of over voltage Reference site for the subject on The most optimum combination of a Si a and c Si Actual operation started on October 28, 2006.
Concept for System Installation and Demonstrative Research. 8 Substation OM YAI_1 No.7 Feeder Panel (7VB 01) ChoHeng Rice Vermicelli Factory. C1 Batteries with Inverter/Converter ( 20kVA x 3set ) (30Ah360V x 3set ) Sensor Voltage Control Center Warehouse AC power Control Cable Junction box AC power modules on roof top. ( 20kW x 7set ) Low voltage switchboard Distribution Line Model. ( 7 units ) 400V Line DC power Power Islanding Conditioners Detector 2 (20kW x 7set ) Dummy Load Measurement unit(01 27) Control Room LAN cable Load CT, PT Stop system Data Storage Server for Measurement B3 22k/400V #1 Trans. LAN cable Islanding Detector 1, Measurement unit (B1 B3, 28 30) Telephone line for TOT ADSL 22kV Line UVR, OVGR Vo Power flow B1 CT, PT, GPT R1 B2 R2 400V pole Wireless LAN Modem Meter Pole R3 Power flow Measurement Unit Data Server R4 B4 Measurement Unit (B4) 22kV Line Power flow Measurement System (Unit) Indoor type (Newly install) Measurement System Outdoor type (Newly install) Internet CT and VT (3 phase : Newly install) Voltage and Current Sensor (Newly install) Wireless LAN Modem (Newly install) 8
Demonstrative Site TEI Site Thailand Environment Institute 16/151 4 Muang Thong Thani, Bond Street Road, Bangpood Pakkred, Nonthaburi 11120, Thailand TEL 02 503 3333 FAX 02 504 4826~8 9 Practical site for the subjects on The most optimum combination of a Si a and c Si Actual operation started on November 1, 2006.
TEI Site: Connection Diagram 10 High voltage transmission line (22kV) Low voltage distribution line (400V) TEI Building Switchboard at ground floor WHM Pole transformer module for I V measurement c Si (Shell) p Si (Kyocera) p Si (Sharp) [L] MCCB a Si (Kaneka) Elevater room at rooftop Switchboard LP5 at 5th floor MCCB for 5th floor MCCB MCB MCCB a Si (MHI) a Si (FES) Junction box for module switching box TC switching box I V curve tracer Pyranometer (total irradiance) Warehouse at 5th floor [K] MCCB 3Φ3W Computer room at 2nd floor Power conditioner 2.5kW(1φ) J box2 PC 2 PC 1 PC 3 PC 4 Power conditioner 4.2kW(1φ) Power conditioner 4.2kW(1φ) Power conditioner 4.2kW(1φ) ~ ~ ~ ~ J box1 J box3 Area (2) Area (1) Area (3) Area (4) a Si p Si HIT c Si 2.42kW 4.51kW 4.56kW 3.84kW (Kaneka) (Sharp) (Sanyo) (Shell) J box4 Converter Rain gauge Anemometer (wind speed) (wind direction) LCD Personal computer (No.2) TD LCD Personal computer (No.1) [J] Spectral Pyranometer TD Pyranometer (total irradiance) [I] Thermometer (ambient temperature) PT100Ω