因技术 得品质 以服务 RU Series AFE Unit & Regeneration Unit JiaWei Yang 08/2014
Contents 1 2 Product Introduction Part of the product 3 4 Applications of product Product Specifications
1. Product Introduction-Basic Concept What is Regeneration Unit? Regeneration Unit, or The Energy Feedback Unit, the full name for special energy feedback unit of frequency converter, is a kind of special inverter braking unit, is mainly used for large inertia frequency speed regulation system, help renewable electricity back to the grid produced in the process of the motor reducing the speed,help system achieve rapid braking.
1. Product Introduction-Basic Concept Classification: 1.Parallel energy feedback refers to feedback device and VVVF used in parallel. 2.Tandem energy feedback refers to feedback device and VVVF used in tandem, usually say "active front end rectifier and inverter"afe(active Front End)
1. Product Introduction- Our product RU Series AFE Unit & Regeneration Unit arise at the historic moment. RU600 was developed and launched in 2013, high-performance, active energy feedback unit It can be used in conjunction with the inverter,can replace the traditional braking resistors, reducing heat generation.the effect of energy-saving is obvious. While minimizing the input side harmonics, Reduce the pollution to the grid in the use process of inverter. With a converter to achieve fourquadrant operation.
1. Product Introduction- Our product Energy flow diagram Energy consumption braking mode Energy feedback mode Power supply VVVF Motor Power supply VVVF Motor Energy resistance Regeneration unit RU630 AFE Mode Power supply AFE VVVF Motor Motor driven RU600 Braking
1. Product Introduction- Our product A Structure Design B Easy to use C Guaranteed by design Galvanized chassis effective safety ground Wall-mounted installation program supports and floor Independent duct design Efficient design parameters Pluggable terminal block design. Simplify loading and unloading. Design of new features and ease of keyboard IPD complete development process Optimized thermal design model Power chip thermal assessment program A common platform of design and manufacture to ensure the quality.
Contents 1 2 Product Introduction Part of the product 3 4 Applications of product Product Specifications
2.Part of the product- The whole system diagram Drive and protection circuits Functional circuits and optical isolation DC-Bus
2.Part of the product -RU600 Wiring Diagram The three 三相 phase 电源 grid MCCB MC R/L1 S/L2 T/L3 RU600 + - 变频器 M 多 功 Multi-function 能 terminals 输 Input 入 Others: Standard RS485 端 communication 子 terminals, Modbus protocol support RUN STOP ET RES External expansion card, Multi-machine communication interconnection 通讯端口 Communi cation port X1 X2 X3 X4 X5 X6 GND A+ A- RA RB RC Y1 GND PE ground 接地 继电器输出触点 AC250V 10mA 以上 3A 以下 DC30V 10mA 以上 1A 以下多功能开路集电极输出 0V~24V/0mA~200mA 接地 ground PE
Contents 1 2 Product introduction Part of the product 3 4 Applications of product Product specifications
3. Applications of product - Typical applications Large cargo lifting equipment when removing the cargo,installation RU600 / RU630 can replace conventional braking resistor. Elevator light load upward, overload downward,motor in the state of renewable energy, installation RU600 / RU630 can make Energy back to the grid, to save energy.
3. Applications of product - Typical applications Energy feedback unit used in high inertia loads such as: fan, cement pipe, balancing machines, centrifuges grinder, etc. Energy feedback unit for applications requiring quick stop occasions, such as rolling mills, large planer, machine tools, presses, etc.
3.Applications of product - Other applications Regeneration unit as inverter device for wind power, the electricity coming from wind power generator can be sent back to the utility grid by means of regeneration unit. Regeneration unit used in photovoltaic power generation, the electricity coming from photovoltaic panels can be sent back to the utility grid by means of regeneration unit. Energy feedback unit used in UPS power supply, EPS power supply, AFE units used in applications where a stable DC voltage is needed, energy feedback unit is used as a power inverter for local load electricity generation.
3.Applications of product applications in spot Regeneration unit RU630 was used in the Construction Machinery Company In Guangxi. R&D Laboratories and production plants in A4 RU600 was used in Motor Test System in our R&D laboratories and product plants.
3. Applications of product - Operating Mode Wiring a CH1: Inverter input current waveform when RU600 is not used CH3: AFE input current waveform Automatic switching of the rectifier / feedback operation mode based on the bus voltage change, the current flow in both directions, the bus voltage is held constant, the power factor is close to 1. And can be limited to a single direction rectifier mode, provided for electrical constraints for irreversible system, such as diesel generators.
3. Applications of product - Operating Mode Wiring b : RU630-11kW CH1: DC-bus voltage. CH3: feedback current When braking the motor, when the bus voltage exceeds the set voltage, the capacitor energy back to the grid. Improve the use of energy-efficient to achieve energy saving,compared with braking resistor.
3. Applications of product - Operating Mode RU60 0 Mode Wiring Current control 1 Four quadrant rectifier Wiring a Controllable bidirectional flow 2 Single rectifier mode Wiring a Controlled rectifier 3 Single feedback mode Wiring b Network side flow RU630 Mode Wiring Current control 1 Single feedback mode Wiring b Network side flow Well,let s watch a video.
Contents 1 2 Product Introduction Part of the product 3 4 Applications of product Specifications and attention
4.Specifications and attention-naming Rules Rated input voltage Type Power(kW) Rated output current(a) Three-phase AC-380V RU600-030-3 30 60
4.Specifications and attention- Shape and Size Product model Shape Size/mm Installation size/mm Remarks W H D W1 H1 D1 RU600-030-3 316 595 249 240 573 8 RU630-011-3 270 480 150 150 482 9 W =316 W1=240 D1=249 H =595 H1=573 4-M6 12 RU600 4-M8 14 RU630
4.Specifications and attention- Selection guide When using the four-quadrant mode rectifier mode, in accordance with the following selection table : Inverter power(kw) 7.5 9 11 15 22 30 RU power(kw) 11 30 Dedicated to energy feedback mode (instead of braking resistor), you can press the selection table: Inverter power(kw) 15 18.5 22 30 37 45 RU power(kw) 11 30 Other products are in development.
4.Specifications and attention-technical Feature Low harmonic value :Advanced PWM technology, harmonic value of the current less than 5%. Power Factor: Real-time monitoring of the grid, to ensure that the power factor> 0.95(usually 0.98). Group control features: supports two sets of parallel, system expansion, networking group control Dynamic performance: solve fast transient braking problems, improve system braking performance Personalized solution:solve lift type equipment overload problem Automatic current limiting: Automatically switched according to the external environment and usage Perfect solution in parallel circulation:reduce energy consumption, improve performance Perfect voltage loop control strategy:to ensure the DC-bus voltage of frequency converter accurate and stable
4.Specifications and attention-attention Check program: First power off Then check carefully First outside and then inside First control and then power part Three-phase grid Inductance IGBT Model Soft-Drive capacitor Frequency Convert Fuse Switching Power Run time, to ensure Running lights are lit The control logic is normal Operating current and the detected current is consistent Input and Output terminals are normal The red dashed box for RU600
4.Specifications and attention-attention In my experiment, encountered some problems, and share 5 tips with you: Tip1. It is different with the inverter, RU600 require real-time monitoring of the grid voltage.if it shows LP,after power on,firstly check the grid voltage detection line wiring is properly connected to the grid. Tip2. When using an external inductor,grid detection wire needs to be connected to the grid side. Tip3. Energy feedback unit and inverter applications in parallel mode, need to use Commonmode Choke in series with the bus, or will cause circulation, affecting the normal use. Tip4. Power normal, keyboard display properly on RU600, but the bus voltage and bus voltage of the inverter are inconsistent, to confirm the internal fuse is damaged or not. Tip5. It is different from the inverter, losing uncontrolled rectifier bridge, increasing the grid voltage detection circuit, so we can handle the rest of the abnormal as the inverter.
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