The RENergy engineering team will advise and provide professional solutionsto customertechnical queries. The technology support department is ready and standing-by to help you by offering technical and application example documents via Email or telephone. You can also find us on our website www.relectric.cn
All information contained in this brochure is subject to change at any time. RENergy assumes no liability for any errors or omissions in the content of this brochure, nor does RENergy give any guarantees under it. Any scope of services and supply of products shall be determined exclusively by a formal agreement.
Renewable Energy and EfficiencyManagement Expertise
REsmart+
0201 0201
RENergy Being Powerful to Promote Intelligence
This will be a revolution in new energy efficiency management
Good at Control Great at Increments
RENergy • REsmart
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Company ProfileRENergy Electric Tianjin Ltd. is a renowned enterprise in the field of electric control technology. It innovates and develops the “REsmart+” system based on internet energy and provides professional, entire-life-cycle energy efficiency management solutions. RENergy also helps customers in the field of wind power, PV and micro-grid in order to create value.
RENergy’s business covers the customization of multiple service schemes for entire-life-cycle energy efficiency management. This includes the “REsmart + wind power” solution, “REsmart + PV” solution and “REsmart+micro-grid” solution.
Depending on the amount of profound technology accumulation in wind power, RENergy participates in the design of wind turbines for customers. This includes the initial selection of an optimized electric control scheme, the independent development of smart WTG solutions and the development of intelligent WTG diagnosis as well as self-adaptive controls with big data technology. This will help customers improve the reliability and energy efficiency of WTG.RENergy customizes and develops a full set of solutions for main control, converter and pitch system. It provides energy efficiency management servicesover the entire life cycle. The company insists on customer-oriented ideas and provides customers with 360 degree support via a complete service system and professional technical team. It has 8 regional service centers in China, and its 16,000+ sets of different products cover more than 190 wind farms around the world.
By means of mature technology in wind power, RENergy Electric provides a micro-grid, PV power and other energy projects with various services. These services include consultation, “REsmart+” scheme customization, products development & manufacturing, as well as O&M and value-added services. All of these help customers improve efficiency and the reliability of projects. Currently, the independently customized and designed “REsmart + microgrid” design scheme has already been used on the national “863” smart microgrid demonstration project. It is able to provide customers with a reproducible and successful microgrid project mode.
RENergy firmly believes that premium renewable energy and high-quality advanced industrial equipment will change the world. We will continuously create value for customers with smarter technologies and more reliable products. We will also create a national brand within the industry of electrical systems in the fields of renewable energy and power electronics. RENergy aims to be a respectable world class company and help people to use clean energy more conveniently.
Milestone2008RENergy Electric Tianjin Ltd.was established by a team of professionals with more than 10 years of control system development experiencesThe main control system for the 1.5MW doubly-fed WTG was independently and successfully developed and applied in bulk.
2009 Recognized as a National High-Tech EnterpriseThe converter and pitch system for 1.5MW doubly-fed WTG was independently and successfully developed and applied in bulkPromoted more sustainable development in China, and obtained the support of the “New Ventures China Program” from the World Resources Institute, as well as the outstanding achievement honor
2010The world’s first wind farm with elevation over 3500m —— Yunnan Ma’anshan Wind Farmwas successfully grid-connectedA full set of electric control systems for the 2MW doubly-fed WTG was independently and successfully developedA full set of electric control systems for the 1.5MW and 2MW doubly-fed WTG passed wind farm LVRT testing
2011A full set of electric control systems for the 2MW doubly-fed WTG was applied in bulkThe converter for the 2MW doubly-fed WTG won the “National Key New product” prize
2012A full set of electric control systems for the 1.5MW doubly-fed WTG was applied in the first distribution and generation project in China - Shaanxi Lang’ergou Wind FarmThe electric control system for the 1.5MW doubly-fed WTG passed CE certification500kW PV inverter was independently and successfully developedA full set of electric control systems for the 3MW doubly-fed WTG was independently and successfully developed
2013The company undertook the national 863 microgrid demonstration project; and independently developed a high-speed communication protocolA full set of electric control systems for the 3MW direct-drive WTG was independently and successfully developed, creating the most compact converter in China, by volumeThe 5.5kW electric motor was successfully developed and applied in bulkA PV monitoring solution was successfully installed at the Yunnan PV power plant
2014The world’s leading and most advanced WTGcontrol strategy based on nonlinear intelligent control was independently and successfully developed. It was able to increase generating capacity by 7%The electric control system for the 2MW direct-drive WTGwas applied to the permanent magnet direct-drive generator in bulk10,000 sets of products had been appliedThe postdoctoral research workstation was approved
2015The electric control system for the 1.5MW doubly-fed WTG was applied at a 50 degree ultrahigh temperature wind farm in IndiaThe unattended intelligent wind farm schemewas independently and successfully developed. It was able to realize assetmanagement and provideearly fault warningsover the entire life cycle of productsA 2MW main control system was customized and designed for a customer which obtained GL design authentication
2016The electric control system for a 2MW direct-drive WTG was applied to an electro-magnetic direct-drive generator in bulkKey components for the electric control system were independently and successfully developed and applied in bulk. This was able to save costs for customers while ensuring reliabilityA 2MW electric control system was exported to an European WTG manufacture
■ Control system technology reform■ Wind farm monitoring■ Grid connection optimization
REsmart+Operation &Maintenance
■ Big data platform■ Remote diagnosis■ Early fault warning■ Energy efficiency management
REsmart+unattended intelligent wind farm
REsmart+wind power
Based on wind farm energy efficiency management, and proceeding from WTG design through the design of reliable and efficient programs over the entire life cycle, “REsmart+wind power” smart wind farm solutions from RENergy reduce energy loss and help customers realize optimized productivity and higher incomes.
The Overall “REsmart+Wind Power” Program
REsmart + Electric Control“REsmart+electric control” participates inturbine simulation modeling and load calculations based on the technical accumulation of control system intelligence. It functions in accordance with customer’s demands, and independently develops products suitable for China’s climatic and grid environment. This means it is able to meet customers’ comprehensive requirements in terms ofeconomical efficiency, reliability and convenience.
REsmart+Operation &MaintenanceThe “REsmart+operation &maintenance” solution from RENergy improves electric-power output and the overall reliability of WTG. Through technology updates and control strategy optimization, it allows wind farmsto meet the latest operational requirements of electric systems; meanwhile, our optimal spare parts solution allows the customer to save on operation maintenance costs.■ OptimizesWTG components, and reduces self consumables; ■ Optimizes control segment by segment and uses a distinctive damping techniques; ■ Wind farm dispatching and electric power system optimization; ■ Establishes a stable supply chain of spare parts, and changes wind power operation maintenance to capital management;■ Spare parts preparation considers the properties and electric-power output of the wind turbine and provides“alternative solutions” for recondition in accordance with the operational condition of the complete units; ■ Creats a complete and unified system, including the components and parts service system, quality management system, as well as operation& maintenance personnel qualification,authentication and training.
“REsmart+” Whole Life Cycle Energy Efficiency Management Solution
Technical Modifications to the Wind Farm
■ Remodification of low voltage ride through ■ Adaptability and remodification of the wind turbine generator■ Optimization and remodification of power components ■ Spare parts support
Optimization of the Main control system
■ Optimization of the control strategy ■ Replacement of the main control system ■ Remodification of low voltage ride through■ Software upgrading (power management, active and reactive power control, communication with SCADA system of wind power station)
Remodification of the Converter
■ Remodification of low voltage ride through (complete transformation, replacing control elements)■ Localization of special program ■ Complete replacement
Upgrading the Pitch System
■ Completely replaces the control cabinet (electric motor is able to be saved)■ Adds the overspeed protection module ■ Remodification of the backup power supply
SCADA Increment
■ Adds the SCADA system to unequipped wind power stations ■ Gathers different wind power farm' SCADA systems into one display■ Combines wind turbine generators from different companies into one wind power station's SCADA system
+230,000Yuan +7%One of the wind farms in Liaoning was able to increase profit by RMB 230,000 Yuan + each year after reducing self consumables
One of the wind farms in Yunnan increased electric-power output by 7% after reducing self cosumption + adjusting its control strategy
RENergy • REsmart
High energy efficiency:■ A full product set carries out one-time trouble shooting and reduces shutdown and waiting time;■ Information interaction occurs succinctly between integrally designed components, which causes the start-up and shutdown time is shorter;■ It uniformly arranges control strategy verification and optimization, and reduces compliance evaluation time;■ It also features fast gust response, high computational accuracy, less loss, strong overload capacity, and high generation efficiency over the turbine and helps customersto increase income.
Economicalefficiency:■ Customization comes in a full set of electric control products and the general design manages to save costs;■ Simplified complexity involved with training to maintenance personnel and decreasedspare part numbers manage to effectively save operation &maintenance costs;■ System linkage and remote update featuressave time and improve maintenance efficiency.
Reliability:■ The focus has been placed onthe whole to provide an optimal solution and to avoid unilateral considerationsfor single products;■ Strong and integrated development, stable system operations and integral grounding and lightning protection provide ideal optimization;■ Abundant operation achievements have been made on several models, such as the doubly-fed generator, permanent-magnet direct-drive generator, and electro-magnetic direct-drive generator.
Convenience:■ A more compact structure occupies smaller internal space within the complete unit. This promotes a more convenient installation and layout;■ The seamless connector and the custom-designed communication mode providing several kinds of communication interface programs;■ The standardized and user-friendly operation interface realizes rapid and skilled operations.
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REsmart + PV
The "REsmart+PV" solution from RENergy can be customized in accordance with customer demands. It includes thePV inverter system, sun tracking system, intelligent confluence and monitoring system, energy storage system, and SCADA system. It will improve the energy efficiency of power stations by utilizingcore technologies,and it can provide customers with value-added services forthe overall operation, as well as upgrading and diagnosis maintenance at the PV power plant.■ Multi-peak knee point effect with the MPPT control strategy uses variable-step power forecasting technology to achieve MPPT and ensure efficient dynamics and a static MPPT effect;■ The control strategy for unbalanced grid voltage will uniformly analyzes the current control loop during different failure periods; it adopts control measures to ensure system stability;■ The special grid voltage oriented vector control strategy improves on-grid power quality;■ LVRT capacity with reactive compensation;■ PV generation intelligent monitoring. The monitoring network has been constructed based on a single component and it can obtain all assembly performance indexes.
REsmart+Unmanned Intelligent Wind FarmThe "REsmart+unmanned intelligent wind farm" solution from RENergy includes wind farm remote monitoring and the failure analysis
system. It also includesthe remote maintenance system, asset management system and energy efficiency management system. It
provides whole process integrated services from R&D to on-site operation. It also realizes remote diagnosis, fault precaution and energy
efficiency management based on the big data platform forefficient wind farm energy management and helps customers increase profits.■ Advanced technology of health status diagnosis of components made by experts, intelligent diagnosis for unintelligent components;■ Self learning and self-adaptive unit control strategiescan improve the energy efficiency of the unit;■ Automatically generates the pre-maintenance program and material demand program for theunit and wind farm based on big data;■ Connects with the enterprise's information system to realize after-sales service informationization, spare parts distribution
optimization and management of products over the entire life cycle.
Storage Battery Local Electricity Load
Solar Modules
Distribution Cabinet
Grid
PV Inverter
RENergy • REsmart
Accurate phase synchronism,the power factor is higher than 0.99
Accurate damping control algorithm, the efficiency of the inverter reaches
The total harmonic distortion (THD) of the on-grid current is less than 1.5%, which is much lower than theChinese national standard
10% power and above 98.7% 1.5%v
Wind FarmSCADA
APP
Comprehensive Diagnosis Platform (Cloud Service, Big Data,
Expert Diagnosis)
SCADA
APPWind Farm
Level Optimized Decision
Remote Online Expert DiagnosisPAD
RemoteMaintenance
Private Database
Enterprise ERPDiagnosis Result
Spare Parts Demands
Main Control PLC
Front End Processor
3G/GPRS
Fiber Optic Network
Fiber Optic Network
Fiber Optic Network
Fiber Optic Network
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REsmart+Microgrid “3+2 Turn-key Project■ Meets customer demands for more flexible application of energy ■ Realizes electric power balance within the microgrid■ Promotes smooth and seamless switching between grid connection and disconnection ■ Improves power supply and consumption quality and increases power consumption efficiency■ Provides clean and stable electric power for islands and remote areas without electricity and power terminal areas ■ Improves the utilization rate of terminal energy
■ Demand analysis: the demand analysis of resource development is made according to the customer demand;■ Plan analysis: the plan design and coupling-reliability calculation about the operation optimization is made according the project field.■ System integration: the photovoltaic and wind power products are made to match the project. And the project is processed by systematic comprehensive match to make the integrated solution to be of high cost performance.
■ Project construction: selects the optimal construction program to improve safety and construction timeframes;■ Debugging and acceptance: carries out operation and on-grid debugging for the project, and providessmooth operation guarantees.
Microgrid CommunicationManagement Unit
Quick Switch Cabinet
Microgrid monitor workstation
Central Controller
Microgrid Intelligent Distribution Box
PV On-grid Inverter
Wind Turbine On-grid Inverter
Microgrid Stabilizing Controller
Microgrid Stabilizing Controller
Microgrid Stabilizing Controller
JunctionBox
JunctionBox
PV Module Wind Turbines Stored Energy Stored Energy Stored Energy Client
Big Grid
Transformer
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RENergy • REsmart
REsmart+Microgrid
The "REsmart+microgrid" solution from RENergy provides customers with complete turn-key project services. This includes load side data
acquisition, multi-energy program design, grid side operation optimization, and energy efficiency management based on big data. This
solution realizes integrated planning and optimizescomprehensive energy efficiency and higher customer benefits. It also provides a
customized intelligent microgrid with wide serviceability with distributed and complimentary multi-energy products, including medium
and small-sized wind turbines, the PV power generation system, energy storage systemand grid control system.
Key REsmart+Microgrid Technology■ High-speed real-time Ethernet communication technology provides the looped network with a real-time, efficient and friendly
networking mode. It fulfills the real-time distribution of power, real-time collection of voltage and current data and provides real-time
control to each node. It also realizes rapid dispatching and more efficient utilization of microgrid energy;■ The microgrid control system platform was created by adopting the DSP+ARM+FPGA, high speed backplane bus and embedded
RT-Linux operation system. Abundant bus interfaces are available, including EtherCat, EtherNet, RS485, and CanOpen;■ Multi-energy-storage-module parallel technology allows switching between grid connection and disconnection in 10ms and provides
the entiremicrogrid system with stable voltage frequency support;■ Power quality improvement technology: our independently developed power quality improvement product APF has an active power
filter. It separatesthesubharmonic and reactive power by sampling load current. It also controls and actively outputs the current
magnitude, frequency and phase, and responds rapidly. This allows it tocounteract any corresponding current in the load and realize
dynamic tracking compensation.
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Service Network Close to Customer■ This is the only electric control manufacturer in China carrying out regional service coverage according to the setup mode of the machine manufacturer’s service center;■ 8 offices covering 90% of the areain China have been builtto help us stay close to customers and provide high efficiency services;■ Ensuring a12-hour response mechanism and responding to failure feedback rapidly;■ 24-hour all-day technical advisory services.
Talent
RENergy was established with the dream that human beings could enjoy the convenience of low-carbon energy. The company takes
"understanding talent, using talent, cultivating talent and retaining talent" as itsemployment philosophy. As such, the company creates
opportunities for talented employees. Weletthem improve continuously and help them to realize their dreams.
Our employment philosophy also means that we attract more talented employees. RENergy Electric encourages all employees to fully
participate in enterprise operations and contribute their creativity and potential.
RENergy provides its employees with healthy and safe working conditions and it gives them respect. This creates a win-win situation for
employees and the enterprise.
Abundant Achievements in ApplicationOver 16,000 sets wind energy products have been put into operation at more than 190 wind farmslocated all across China, Eastern Europe and South Asia.We provide quality services to 40 owners. Ourproducts and programs are suitable for various models, such as double fed turbines, permanent-magnet direct-drive turbines, and electro-magnetic direct-drive turbines.We provide highly compatible types of products specifically suitable for highlands, low temperatures, ultra-low temperatures, high temperatures, and coastal environments.
The First Distributed Demonstration Wind Farm in China –The Lang'ergouWind Farm
■ 1600m elevation, 9MW total installed capacity, 1.5MW low temperature type main control system, pitch system and converter.■ Realizes automatic port voltage control; improves power quality at the local distribution network; and avoids the "wind discard" phenomenon to the maximum extent possible.
The Highest Altitude Wind Farm in the World –The Yunnan Fenghua MountainWind Farm■ 3900m altitude, 139.5MW total installed capacity, 1.5MW highland-type
main control system, pitch system and converter.
■ Thin air, an unstable wind energy source, high demands of insulation and
dehumidification.
Successfully Withstanding a Violent 17-classTyphoon –The Hainan DongfangGanchengWind Farm
■ Coastal-type wind farm project with atotal installed capacity of 49.5MW.
■ 1.5MW coastal-type main control system.
■ The anti-typhoon strategy ensures stabilized operation under a 17-class
typhoon environment andeffectively protects the safety of the unit.
The Largest Offshore (Intertidal Zone) Wind Farm in China - Jiangsu RudongOffshore Demonstration Wind Farm
■ The largest offshore wind farm demonstration project in China with a total installed capacity of 150MW.■ 1.5MW coastal type main control system, pitch system, and converter■ This project has instructive and demonstrative significance for wind resource utilization and operation maintenance for offshore wind farms in China.
Third Class Spare Parts WarehouseRENergy Regional Service Centers
Wulumuqi office
Wuzhong office
长春办事处
HQoffice
Kunming office
Guazhou office
Changchun office
Jining office
Xinyang office
Tianjin HQ
Zhongshan office
C ClassB ClassA Class
12-24hMaterial Turnover Rate < 50%
24-48hMaterial Turnover Rate < 50%
0-12hMaterial Turnover Rate ≥90% 12-24h
50%≤Material Turnover Rate <90%
0-12h50%≤Material Turnover Rate <90%
First class warehouse coverage areaTime effect of wind farm within service area ≥ 24 hours
Second class warehouse coverage areaTime effect of wind farm within service area ≥ 12 hours
Third class warehouse coverage areaTime effect of wind farm within service area ≤ 12 hours
