Usually a hydroelectric generator is a salientpole synchronous generator whose rotor is connected to the rotor of a hydraulic turbine. A hydroelectric generator converts this mechanical energy into electricity. When the rotor turns, it causes the field poles the electromagnets to move past the conductors mounted in the stator. The rotor has laminated poles fitted with strip or wire wound field coils and supplied with an amortisseur winding on the outer pole face. Mechanical software solid works is used to design the turbine. Laminated spider the rotor spider is made of thin laminations, clamped with axial studs. If possible, inspect interior of tubes for scale buildup or corrosion.
It was especially created to enable a quick and efficient design optimization of rotating machinery components. Umbrella type generator is specific because turbine bearings support generator and generator uses the same shaft with turbine. All together, results in rotor vibration as mentioned in 40, 41. Similarly, the rotor consists of a specific number of field poles, each with a specific number of windings. Presented at hydro 2000 bern, switzerland, october 24, 2000 advances in. Design of microhydroelectric power station article pdf available in international journal of advanced technology and engineering exploration 25. In addition to shorted turns, other factors affect the magnetic field from each pole, such as. Hydro power turbine generator rotor monitoring 030515nr visit us online at. Runner hub, blades, turbine cone, and runner discharge in the downstream pit. Kinetic hydropower turbine rotor hub adept engineering. A new type of probe was designed for use in a hydro generator. Axial turbine design software axstream platform overview.
Developed a 2lobe rootsbased rotor design through cfd that is predicted to achieve the target 80% mechanical efficiency stresses and strains are reasonable. Afterwards case study is presented and end design solution is described. A mode hydro electric power plant is simulated using presented turbine design matlabsimulink and the results are presented for verification. The rotor is attached to the turbine shaft, and rotates at a fixed speed. Computer automated design drawing, a standard wiring diagram of a generator takes only a few. Numeca offers advanced grid generation and cfd tools for modeling complex flow. Simulation of hydro turbine and synchronous generator can be done using various simulation tools, in this work, simulinkmatlab is favored over other tools in modeling the dynamics of a hydro. When the rotor turns inside the stator, the electrons in the copper windings vibrate.
Online detection of these faults first described in 1971 16, 42. Home free software extended programs about us contact us client zone our programs hydrohelp 1. Design and simulation of turbine design for improving the. Air is circulated inside the machine by two internal fans and the rotor. The tight shrink fit loosens between the end of the cast or fabricated rotor spider arms and the rim.
Hydrosensors for hydro turbine vibration monitoring. Hydro turbine blade design a hydro turbine generator will only work if it is able to use the mechanical energy from water to spin the specially designed turbine blades and generator. The generator is connected to the turbine drive shaft. Turbnpro is the only software of its kind created to develop information on hydraulic turbines, their. Axial turbine design software turbomachinery design software. The generator is designed for open enclosure wpi, ip2324 or totally enclosed airtowater tewaccacw cooling system top or bottom cooling. The rotor eccentricity can be sketched schematically as shown in figure 1. Paper gives complete description of calculation input data and methods. Water turbine cfd for designing water turbines and their. This paper presents evaluation of improved rotor spider design rotor spider is part of vertical hydrogenerator which transfers torque and rotation from shaft to rotor rim and poles. Adapt 370146 hydro monitor generator temperatures temperature sensors installed in locations such as in stator slots, air cooler inlet and outlet, water inlet and outlet rotor poles, etc. The monitor provides alarming functions, alerting operators when temperatures are outside. The main goals are to make a higher nominal voltage of the used insulation system as well as a highprecision threedimensional prognosis of the temperature distribution in the generator possible.
Using magnetic flux monitoring to detect hydrogenerator. Hydro generator mechanical brake device electric motors. Collector end of generator field retaining ring bore copper main terminal field coil endwindings collectors collector terminal main leads axial fan a typical collecter end configuration is shown in. Reverse power negative watts occurs when the water flowrate through the hydro turbine is less than whats required to make the generator rotor maintain synchronous speedand power flows from other generators and their prime movers on the grid to the generator to keep the generator rotor spinning at synchronous speed. Combining onshore and offshore wind, blades, hydro, storage, utilityscale solar, and grid solutions as well as hybrid renewables and digital services offerings, ge renewable energy. Development and implementation of hydro turbine and governor models in a free and open source software package. Technology for a better society about the work background problem. A preliminary design of the rotor bracket was improved to avoid cracks and rub between the rotor and stator. A hydraulic turbine converts the energy of flowing water into mechanical energy. The design of a hydroelectric generator is basically determined by the position of its rotors axis, as well as by the frequency of rotation and power of the turbine. Free power how to convert an old washing machine into a.
Hydro info systems introduces turbnpro version kc4. The operation of a generator is based on the principles discovered by faraday. Design of zero head turbines for power generation intechopen. Base values, transformation ratio, and rotor parameters referred to the stator. Site servicesonsite management and supervisionmobilization of tools, equipment and trained personnelenvironmental health and safetygenerator preparationasbestos removalmechanical inspectionsregional. Improved design of rotor spider will be compared to earlier designs from previous similar projects with. It runs on microsoft excel and uses 2 mb of memory. He found that when a magnet is moved past a conductor, it causes electricity to flow. Simulation model of hydro power plant using matlabsimulink. A turbine connected to a generator produces power inside a. Advances in hydrogenerator refurbishment technology. Development and implementation of hydro turbine and. Autocoil computer aided design, performance upgrade and reverse engineering capabilities.
Our integrated software environments, such as fineturbo, fineopen with. The flexible probe is installed on a stator tooth and has a profile of just 0. Pay particular attention to welds on the rotor spider. Detailed electrical design of a small hydropower plant eep. This, in turn, causes electricity to flow and a voltage to develop at the generator output terminals. The research on rotor dynamics started 1869 when rankine. Sources of vibration and their treatment in hydro power. Dynamic analysis and structural design of turbine generator foundations dr. Hydrogenerator rotor rim shrink age causes deviation from original circular shape as hydrogenerators age, their laminated rotor rims relax, deviating from their original circular shapes. Detailed electrical design of a small hydropower plant from turbine, generator to transformer photo credit. Hydro turbine and hydro turbine governor terminology. Water turbine cfd is an opensource cfd software package and. These analytical capabilities may be used to guide the design of new blades as well as to. Tollfree8886840012 5183932200 keeping a watchful eye on hydro generator temperatures accumetrics a pcb group company.
Global hydro energy gmbh the generator shall be star connected complete with stator, rotor, bearings, stator temperature detector, oil coolers for bearings, brush less excitation system, avr and protection equipment. Aeroacoustic noise sources from a wind turbine not only often dominate over other turbine noise sources, they also often limit the tip speed of the rotor, thereby increasing. In this paper, a bulb turbine generator rotor system was modeled using the contact methodology, and the equivalent youngs modulus of the rim was obtained by simulation other than engineering experience. Toshiba power generation, equipment and services provider for utility industries in the americas, including thermal, hydro and nuclear power plants, as well as steam turbine and generator services. Rootsbased hydro turbine eaton roots rotor for low head. Iris power provides the sensors, instruments, diagnostic software and services needed to ensure your condition monitoring program provides the information required for you to understand the health of your hydro generators, prioritize corrective measures and plan maintenance outages prior to failures. Houghton international quality coils designed with. Ger4212 ge generator rotor design, operational issues.
This method can diagnose this fault when the hydro. The stators inner surface, or cylinder wall, is made up of copper windings. These are called field poles, and are mounted on the perimeter of the rotor. Thoroughly inspect all stress carrying parts of rotor for cracks. It has a moving partthe rotorand a fixed partthe stator. A typical ac generator consists of a stationary stator and a rotor mounted within the stator see below. Open source software tool for designing generators in wind power systems. Products include steam turbines, turbines, generators and reactors. The occurrence and the effect of rotor eccentricity in electrical machines have been discussed for more than one hundred years 2 and is still a question of research. There are several techniques for collecting the mechanical energy of water into a water turbine generator. Air gap is a measure of the distance between the rotor and stator in a hydro generator. This is the end of this little tutorial software modeling and calculation heliciel on the rotor design of the tidal turbines, which should.
Hydro information systems turbnpro version 3 software. Improved insulation systems and using high strength materials for the stator and rotor substantially increases output. The project generator next level shall develop the technology for future large hydropower generators. Maintenance planning and decision making should be based on reliable and relevant data. Shaft voltage occurs in electric motors and generators due to rotor winding ground fault, spikes caused by the rotor excitation system, magnetized generator parts and magnetic fields. The increased cooling and ventilation requirements also need be mapped and measured against the existing capacity. The hydro generator mantra renovate, modernize and uprate. Psat is an open source matlab and gnuoctavebased software package for analysis and design of electrical power systems. The 4000 series air gap sensor system provides monitoring and diagnostic capability for all new and existing hydro generators and motorgenerators, and fully integrates with the 350046m hydro monitor and system 1 software.
Servicestrust ge to deliver hydro services that can improve your equipments performance, extend asset lifecycles, and lower your total cost of ownership. Ge generator rotor design, operational issues, and refurbishment options coupling coil slot retaining ring balance plug fan collector ring collector fan figure 2. Finite element analysis design of a split rotor bracket. Veski provides all the necessary equipment and services to provide the valuable information required for hydro generator predictive maintenance. Hydroelectric generator article about hydroelectric. Inter turn faults in a hydro generator rotor winding lead to rotor earth faults, local overheating and imbalanced pull. The rotors outer surface is covered with electromagnets.
Modelling and analysis of hydropower generator rotors. Objective was to design and analyze a trilobe turbine blade support hub capable of withstanding ultimate design loads and record strain quantities. Rotating assembly of an electric generator, alternator or motor. The stator contains a specific number of coils, each with a specific number of windings. As the number of automaker recalls due to software issues are increasing and gaining widespread attention, we are striving to enable the automotive industry with the bestinclass software and guidelines to control and improve the architecture and technical quality of embedded software. Gustavsson modelling and analysis of hydropower generator rotors. In addition to the rotor and stator, a generator has a collector assembly. This generator is designed for brezice hydro power plant in slovenia. In a large generator, electromagnets are made by circulating direct current through loops of wire wound around stacks of magnetic steel laminations. Hydro turbine governor systems designed and produced to control hydro turbines with gateshaft wicket gate operating systems. The rotor is the most important component in a hydrokinetic turbine. Model the dynamics of threephase roundrotor or salient. Hydro generators iris power qualitrol solutions provide information required by generator operators to understand the current condition of their assets, prioritize corrective measures and plan maintenance outages prior to failures.