The scope of supply involves more than 3,000 items, including: distribution transformers, high-efficiency motors, electrical panels and drives
The Canoas Wastewater Lift Station – a key part in the effort to clean the Bogotá River. This solution will raise residential wastewater to ground level, allowing it to be conveyed by means of gravity
Producing clean energy and taking advantage of the hydraulic potential of a river is the main role of hydroelectric power plants. In order to allow them to operate efficiently and safely, a set of quality and reliable equipment built for long continuous operating periods is required. To guarantee the success of this project’s operation, WEG was selected to supply the hidrogenerators for São Roque Hydroelectric Power Plant, located in the municipality of Vargem, the state of Santa Catarina, in Brazil.
Regarded as one of the most important project components, WEG´s package includes three 50.5 MVA, 13.8 kV and 180 rpm SLW 4000 hydrogenerators and the auxiliary equipment.
Weighing 285 tons each and approximately eight meters in diameter, these machineries are the largest electric hydrogenerators ever produced by WEG.With specialized engineering and verticalized production, WEG designs and produces equipment that fully meets our customer’s needs and requirements.
This supply is part of a large infrastructure project that will provide energy for Brazil´s electric system, boosting the region and the country´s economic sector. Dependent on 142 megawatts of installed capacity, the São Roque Power Plant generates enough energy to supply a city with approximately 170 thousand people.
The use of a ball mill in the grinding process is a traditional technique widely used for particle size reduction or for mixing materials, used in various industrial works, such as mining companies. In this sense, because it is a more severe environment, it is necessary to use a motor with greater resistance and protection.
With efficient solutions in the mining sector, WEG supplied a slip ring motor from the M Mining line, frame 560, 1,300 kW, 3,300 V, 4 poles, 50 Hz to drive the ball mill of a mining company in Argentina. The applied motor makes the process more efficient, ensuring greater operational security, in addition to having simple and reduced maintenance.
WEG motors of the M Mining line were specially developed with electromechanical characteristics that provide durability, resistance and robustness, ideal for operating in harsh environments in the mining and cement segment. The big difference in this project is that to reduce the need for field adjustments, WEG adapted the manufacturing process to scale the solution according to the customer’s needs.
This supply consolidates WEG as one of the main suppliers of motors for the mining segment in Latin America, in addition to reinforcing the company’s flexibility in meeting the specific needs of its customers. For the customer, it increases reliability in operation and reduces downtime for maintenance.
The new brush lifting system is the evolution of the already established WEG brush lifting system, with the incorporation of the operating logic, fault investigation capabilities, operation monitoring via HMI simplifying and reducing the costs of motor installation, operation, and maintenance. In order to carry out the operation logic in a simpler way, its operation is via PLC. The monitoring of the operation and eventual faults is available via the integrated PLC’s display so that the user has full control over the performance of this system.
The need for maintenance compared to a fixed brush system reduces considerably, due to the brushes being lifted after the motor starts, in addition to allowing the elimination or reduction of several variables, such as:
The lifting set has a gearbox driving the operation, adding robustness, reliability, and simplicity to the system. The brush holder works with constant pressure springs and has three inspection points, allowing agility and visibility in preventive, predictive or corrective maintenance. The internal position of the lifting mechanism is read by means of inductive sensors and they have a system that indicates their operating status.
WEG is the supplier of the complete Utility Scale Lithium-ion Battery Energy Storage System for the green hydrogen generation study plant Furnas, installed at the Itumbiara Hydroelectric Power Plant, stated of Goiás and Minas Gerais.
Counting on an installed capacity of 300kW and 600kWh, BESS (Battery Energy Storage System) is part of the Research and Development (R&D) Project, regulated by the National Electric Energy Agency (Aneel), which will test the storage of seasonal and intermittent energies and their interaction with the National Interconnected System (SIN).
Named “Development of synergy between hydroelectric and solar sources with seasonal and intermittent energy storage in hydrogen and electrochemical systems – SHSBH2”, this R&D project is the result of a partnership between Furnas and the company Base Energia Sustentável, associated with Unesp (State University of São Paulo); Unicamp (University of Campinas); Senai (National Service for Industrial Learning); Brandenburg University (Germany) – academic institution with experience in hydrogen storage; and PV Solar, a partner company experienced in implementing photovoltaic systems.
“Participating in a pioneering green hydrogen generation project is a great opportunity to show our expertise to meet the growing market of energy storage by batteries, also in Brazil”, says Manfred Peter Johann, WEG Automation Business Unit Managing Director.
The first stage consisted of installing a photovoltaic plant with a capacity to produce 1000 kWp (peak kilowatts, a power unit associated to photovoltaic energy). From this total amount, 200 kWp will come from floating solar plates on the reservoir and 800 kWp from solar plates installed on the ground. Itumbiara HPP was chosen to be the location for the project due to the good rates for solar generation and for allowing an adequate storage reservoir for the installation of floating photovoltaic panels.
The energy generated by the photovoltaic system feeds an electrolyser that produces hydrogen from a physical-chemical process with water. The hydrogen is then stored in the form of gas, in a tank with a capacity of 900 cubic meters at 27 bar, installed in the plant. For conversion of chemical energy contained in hydrogen into electrical energy a fuel cell is used. The result of the conversion is electricity and water steam.
In addition to hydrogen, the project also allows research of electrochemical storage into lithium batteries. Used in this project to support the startup of the hydrogen plant and provide energy reserve (backup) for eventual failures, lithium batteries also ensure fast energy supply during load fluctuations.
Hydrogen storage usually provides longer performance time, but efficiency is still reduced – around 35%, against 97% for batteries. This occurs due to the losses in electrolysis and conversion into electricity. Tests in Itumbiara will evaluate the electrolyser technology, the maintenance cost, the equipment lifetime, the efficiency losses resulting from system wear, the quality of stored energy and the response time when it is interacted with the National Interconnected System, among other aspects. These analyzes can provide essential information for the development of large projects. FURNAS is a pioneer about these studies.
The energy will be integrated into the National Interconnected System (SIN) through the substation installed at Itumbiara HPP and will be used for supporting hydroelectric power services, such as lighting, ventilation and others.
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