Renewable Energy towards a Low-Carbon Society Public Infrastructure for affluent society Tree of Meiden Power Conversion Systems Power conversion systems The branches of the Meiden Power for renewable energy Photovoltaic Conversion Systems are Growing inverters Distributed energy ststorage system For lithium-ion For NAS battery in the 21st Century. batteries (LiB) High-quality power sources For Redox Flow For lithium-ion Voltage dip For lead storage batteries (RF) batteries capacitors (LiC) compensators Uninterruptible power systems (UPS) Power conversion is general terminology for electric power Power sources conversion and associated controls with the use of power DC power Pulse power sources semiconductor devices. sources Starting with mercury arc rectifiers, Meidensha Corporation has Power conversion systems for raililway Frequency dedicated itself to the development of power conversion products. converters For DC railway Presently, as a result of almost half a century of remarkable power systems Power quality imprimprovining semiconductor device evolutions, its technologies have been For AC railway equipment systems equipment introduced to a variety of industrial fields such as various types of Static var power sources, railway facilities, industrial facilities, recyclable compensators Multi-functional energy, and so on. active filters Based on its fundamental research and development of factory products (the root of product tree), the Meidensha staff is longing to grow a tree of Meiden power conversion systems into a “large tree that bears numerous dreams in the future,” advancing in the 21st century with our customers all together. Technologies for product development Applied technology Technologies that support products Fundamental Analytical technology simulation 1 2 To attain a healthy society, Meidensha Corporation is always striving towards technological innovation. Meiden power conversion systems are contributing to society in many industrial fields, making full use of elaborated techniques such as those relating to renewable energy that are intended to reduce environ- mental loads, power storage for load leveling, high-quality power systems to compensate for voltage dips and power failure, and many other issues. Photovoltaic Inverters High-Quality Power Sources Photovoltaic power generation systems are expanding worldwide as an Voltage dip and power failure caused by accidents and natural phenomena effective means to take protective actions for the global environment, and we like lightning strokes and snowfall are normally unavoidable. We propose the offer photovoltaic inverters (PV inverters) as essential equipment for the optimal combination of our product lineup to protect important facilities of our above-mentioned systems. customers against voltage dip and power failure continuing for a range of time The Meiden PCS for photovoltaic power generation has product lineups for both short and long. both indoor and outdoor installations, available at users’ choice according to their choice. ※PCS : Power Conditioning Subsystem An examplexamplee of ooutdoorutdoor ppanelanel AnAn exampleexample of enclosed air-conditioner package Voltage dip Uninterruptible power Power conversion system for compensator system (UPS) NAS battery and also for voltage dip compensator or emergency power generation Pulsed Power Supply Applicable conditions: Applicable conditions: Applicable conditions: Minimum temperature of a year –15℃ (optional) Air-cooled system using open air Indoor installation Coastal area where salt damage is anticipated Coastal area where no salt damage is anticipated Pulsed power supply delivers instantaneous high power in a short time of microseconds and nanoseconds. The MEIDEN Pulsed Power conversion systems for batteries Power Supply has been used in various power supplies such as excimer laser, EUV light source, and algae treatment. These Power conversion systems (PCS) can be combined with various types of products offer unique features such as output pulse width of batteries so that optimal distributed energy storage systems can be below 100 ns, recurrence frequency of 10 kHz, and output voltage of 120 kV. offered. Pulse generation unit Charger unit When distributed energy storage systems are adequately introduced, it is possible to expect the following results: Semiconductor manufacturing Accelerator Environment Others ・ Load leveling (reduction of electricity rates) Frequency regulation (stabilization of power systems) ・ Excimer laser ・ Synchrotron ・ Water and sewage treatment (ozonizer) ・ Nuclear fusion ・ DLC coating ・ EUV light source ・ Charged particle beam ・ Algae treatment ・ ・ Emergency power supplies and compensation for momentary voltage ・ Sterilization dip (BCP and reinforcement of continued business undertaking) ・ Plasma CVD ・ Significant power microwave ・ Exhaust gas treatment ・ Medical, bio, etc. ・ Sputtering ・ Electromagnetic accelerator ・ Plasma deodorization ・ RE (renewable energy) coordination (rail gun) ※PCS : Power Conversion System Pulsed power supply has been used for various applications. Power Conversion Systems for Railways Electric railways are constantly increasing their needs for dense traffic such as requirements for mass transit and high-speed trans- portation. People are calling for further reliability in transportation systems. To meet such needs, we offer power conversion systems for DC and AC railway systems. PCS for NAS batteriesPCS for lithium ion batteries Railway Static Power Natural air cooling type silicon rectifier Large-capacity PWM Regenerative power PCS for Redox Flow (RF) batteriesPCS for lithium ion capacitors (LiC) Conditioner (RPC) with pure-water heat pipe power conversion system storage system (CAPAPOST) 3 4 List of Power Conversion Products Power station ・High-quality power source ・Distributed energy storage system ・High-quality power source ・High-quality power source ・Distributed energy storage ・High-quality power source ・Distributed energy storage system system ・Power conversion system ・Power conversion system Substation for renewable energy for renewable energy ・Power system stabilizer ・Power quality improving equipment Factory Water purification plant ・High-quality power source ・Distributed energy storage system ・Power conversion system ・Power conversion system for railways for renewable energy ・High-quality power source Office Buildings Railways ・High-quality power source ・Distributed energy storage Power conversion system system ・ ■Power Conversion Systems for for renewable energy ・Power conversion system for renewable energy Renewable Energy ・Distributed energy storage Photovoltaic Inverters…………………………… 7 system ・Power quality improving Hospital ・ equipment ■Power conversion systems for storage batteries ………………………………………… 11 High-quality power source Photovoltaic power generation ・ ・Distributed energy storage ■High-Quality Power Sources system Uninterruptible Power Systems (UPS) ………… 13 ・Power conversion system ・ for renewable energy ・Parallel type momentary voltage dip compensator …… 15 ・Power quality improving ・Dynamic Voltage Compensators………………… 16 equipment ■Power System Stabilizers ・Power conversion system ・Multi-Functional Active Filters …………………… 17 Sewerage treatment for renewable energy plant ■Power Sources ・DC Power Sources………………………………… 18 Pulsed Power Supply …………………………… 19 Park ・ ■Power Conversion Systems for Railway System ・For DC Railway System ………………………… 21 ・For AC Railway System…………………………… 24 Wind power generation ■Some examples of deliveries ………………… 25 ・Distributed energy storage system ■Technologies and Facilities that Support Products ……………………………… 27 ・Converter for wind power generation 5 6 JIS Standard Compliance Standard Specifications Photovoltaic Inverters SUNGENEC Type SP310-250T-FN SP310-100T-FN DC input Features of SP310 Series Input voltage range 400〜750V 1. Characteristics most suitable for the MEGASOLAR MPPT working voltage range 400〜750V ・ Available up to 750V that is the upper limit of legal low-voltage range Max. input voltage 750V ・ MPPT working voltage range: 400 ~ 750V (Rated input voltage: 500V) No. of input circuits 2 circuits max. (Cable size: 325sq. max.) 2. High-efficiency inverters AC output ・ Adoption of a new PWM system that is the latest 6th generation IGBT (patent applied for) Electrical system (Grounding system) 3-phase, 3-wire ・ Attainment of 96.5% efficiency (rated) by optimized design Rated output power 250kW 100KW 3. Emergency power interlinkage functions (optional) Rated output voltage 420／440V ・ Effective utilization of photovoltaic power systems with emergency power generators in Rated output current 344／328A 138／132A operation Rated frequency 50／60Hz ・ Fuel saving for emergency power generators Current distortion factor 3% or less for each order, 5% or less on average (rated) 4. Remote monitoring systems Output power factor 0.95 or more lagging (rated) ・ Standard equipment of an external communication system conforming to RS-485 Efficiency Efficiency 96.5% or more (rated) 96.7% or more (rated) Dimensions & mass Dimensions (Width × Height × Depth) 1200×1950×1000mm (fan block excluded) 900×1950×1000mm (fan block excluded) Mass approx 2050kg 1200kg SP310-250T Applicable standards Applicable standards JEAC9701-2010, JEC-2470 Advantages of the DC 750V systems Former Meiden models (up to DC600V) SP310 (up to DC750V) When the number of series of solar IEC Standard Compliance battery strings is increased and that of parallels is decreased, it is possible to decrease the number Photovoltaic Inverters SP100