641 results about "Wind system" patented technology

A tether for a kite wind power system is disclosed. The tether has a cross-section that is designed to have less aerodynamic drag than a tether with a circular-shaped cross-section.

The invention relates to a method of registering events in a wind power system comprising at least two data processors, wherein the data processors of said wind power system are mutually time synchronized, wherein events are registered in said at least two data processors, wherein the timing of said events registered in different of said at least two data processors is established according to said time synchronization. According to an advantageous embodiment of the invention, events may be registered and preferably analyzed according to a common timing. This analyzing makes it possible to establish an analysis where events of different wind turbines are basically interrelated and where information regarding such interrelation is important or crucial for establishment of control or fault detection based on correctly timed events from different wind turbines.

A three-phase dynamoelectrical permanently excited synchronous machine includes a stator with teeth which point to a rotor, wherein twelve slots are formed between the teeth. The slots have coil sides of coils of a winding system in such a manner that two coil sides of different coils are situated in each slot. The rotor has a cylindrical support structure which is provided with permanent magnets defined by an inner radius which corresponds to a radius of the support structure, and by an outer radius which is smaller than their inner radius. The permanent magnets are formed with ten magnet poles when viewed in a circumferential direction.

The present invention provides a structure comprising a blade attachment, a blade structure, an integrated driving shaft/generator for a wind system such as a vertical axis windmill, and a self erecting structure for such a wind system, together with an erecting method thereof.

A rewinding machine including a winding system and a feed path for a web material towards the winding system is described. Positioned along the feed path is at least one air jet severing member to cause severing of the web material after winding of each log has terminated.

The invention relates to an electric machine (1) comprising a stator (21) and a rotor. The stator (21) includes at least one winding system having a plurality of coils (2) wherein start and end of the corresponding coils (21) is fixed on an end face of the stator (21) by means of a circuit support (7) and contacted in such a manner as to obtain predeterminable connections of the coils (2).

The present invention relates to a power system having a plurality wind turbine generators and a power plant controller arranged to communicate with the plurality of wind turbines generators, where each of the plurality of wind turbine generator being related to a wind turbine controller, the wind turbine controller being arranged to control an active power output in its related wind turbine generator according to an active power set point received from the wind power plant controller; a first subset of wind turbine generators operating at an active power output unrestricted of the active power set point; and a second subset of wind turbine generators operating according to an active power set point; and wherein the wind power plant controller communicates the active power set point, in accordance with the active power output of the first subset of the plurality of wind turbines generators, so as to reduce active power fluctuation of the aggregated active power output of the first and second subset of the plurality of wind turbines generators. The present invention also relates to method accordingly.

A wind energy installation control device includes a wind rotor, a generator driven by the wind rotor, a torque control unit configured to control a torque of the generator, and a control system. The control system includes a detector configured to identify a grid dip and an end of the grid dip, a residual torque transmitter configured to provide a preset value for a torque of the generator after identification of the grid dip, and an initializer configured to initialize a component of the torque control unit at the preset value. Accordingly, upon return of grid power after a grid dip, the vibration behaviour of a wind power system can be significantly improved. Overload of a drive train upon return of grid voltage can thus be reduced.

The invention relates to a type of belt-reticulation furnace with multiple independent warm areas. It comprises furnace body, transporting reticulation belt set in the furnace body, heating element, wind power system and control system controlling process parameter such as temperature of the furnace and wind power etc. There are several independent heating warm areas along portrait of the transporting reticulation belt and independent heating elements and wind systems in each heating warm area. The control system includes controller controlling heating power in each independent heating warm area and controller controlling wind power in each independent heating warm area. The power line connections of each independent heating element and wind power system connect respectively with control ports of heating power and wind power in corresponding area. The invention can reduce experience and randomicity of technologic setting and adjusting. It controls temperature sectionally more accurately and more effectively. Also it can improve the production efficiency of printing and dyeing and dying and the quality of product.

The invention provides a chamber fire simulation experiment device under the action of external wind. The device can simulate chamber fire combustion conditions in a laboratory under the action of the external wind and can be used for researching chamber fire development and windowsill overflow rules under the action of the external wind. The chamber fire simulation experiment device under the action of the external wind comprises an experiment table body, an outer vertical face, an external wind system and a matched measurement and control system. The device is designed according to a medium-size model proportion of 1:3 and is the first experimental device carrying out comprehensive and systematic study on the heat release rate, smoke flowing, temperature distribution, smoke compositions, the air supplement speed, thermal radiation flux, flame forms, sill overflowing and the like of a chamber fire under the action of the external wind. On the basis of previous experimental bases, the defects that a full-scale experiment is high in cost and a numerical simulation tool is not precise enough are overcome, repeatability of the experiment is guaranteed, and the device has great application value and important guiding significance in conducting laboratory scientific research and influences of actual external wind on the chamber fire.

Disclosed is an electric machine (1) comprising a stator (2) that encompasses a winding system (10) with three winding branches, and a certain number of effective pole pairs. Each winding branch is provided with at least one coil group, each of which contains an even number of serially connected individual coils (11) that generate an individual magnetic field, respectively. Two respective individual coils (11) of a coil group are offset relative to each other in a circumferential direction of the stator (2) in such a way that the associated individual magnetic fields are provided with an offset electrical angle relative to one another at the sixth harmonic of the number of effective pole pairs, said offset electrical angle being equal to an odd multiple of 180°.

The invention relates to the field of air conditioning, in particular to a variable refrigerant flow radiation air-conditioning system. The variable refrigerant flow radiation air-conditioning system comprises an indoor machine, an outdoor machine, a sub-water collector, a radiation tail end and a dew-point temperature controller; the indoor machine is connected with the outdoor machine in series; the radiation tail end is connected with the indoor machine through the sub-water collector; the dew-point temperature controller is connected with the sub-water collector and used for perceiving indoor temperature and humidity changes and preventing the phenomenon that condensation may occur on the radiation surface under the circumstance of wind system faults through the mode that a water circulation valve is cut off in advance. According to the variable refrigerant flow radiation air-conditioning system, heating and humidification can be performed in winter, refrigeration and dehumidification are performed in summer, meanwhile, new wind is fed to an indoor area after purification, and it is guaranteed that indoor air temperature and humidity and cleanliness reach a living optimal comfortable state. The variable refrigerant flow radiation air-conditioning system has the advantages that the installation is simple, the reliability is high, the indoor temperature, the humidity and the air cleanliness are adjusted uniformly and softly, and no noise, condensate water, secondary pollution and the strong blowing feeling exist. The equipment whole volume is small, the occupied space is small, the noise is low, and the appearance is beautiful.

The invention relates to a waterpower gravity type vertical ship lift. A ship chamber and a gravity water chamber are caused to be in butted joint by an assembly pulley and a steel cable winding system of a wound roll in the way of bilateral balance so as to cause the lifting points of the ship chamber and the gravity water chamber to be in mutual rigid connection, thereby benefiting the maintenance of favorable synchronization during up and down running. When the ship chamber needs to be descended, water in the gravity water chamber is discharged; and when the ship chamber needs to be lifted, water is added to the gravity water chamber. By changing the gravity difference of counterpoise on both sides, the abrasion resisting moment of the steel cable winding system is overcome, thereby causing a ship reception chamber to be moved up and down and realizing the navigable butted joint of upstream and downstream water levels. A method for adding water to the gravity water chamber is as follows: by enlarging the area of a feed water inlet, the flow of the water is decelerated, and the mode of multi-layer water supply is adopted so as to reduce the water supply drop height of the feed water inlet and the gravity water chamber. The water flows out from overflow pore plates of a water storage chamber in a way of overflow and then flows downwards into the gravity water chamber along water curtain wall plates.

The rewinding machine comprises: a winding system (1, 2, 3) and a path for feeding a web material (N) towards said winding system. Along the feed path at least one suction member (23) is positioned to temporarily obstruct feeding of the web material and cause interruption thereof at the end of winding of each log (R).

The invention discloses a device and method for monitoring the dynamic contact status between a multi-layer winding steel wire rope and a winding drum of an extradeep well. The device comprises a supporting system, a winding system, a dynamic loading monitoring system and a stress monitoring system, wherein the winding system comprises an electromotor; the electromotor is connected with a main shaft through a speed reducer; a flange plate is arranged on the main shaft; a double broken line winding drum that sleeves the main shaft is fixed with the flange plate; a friction disk is fixed on each of the two sides of the double broken line winding drum; a disk brake is fixed on one side of each of the friction disks; the steel wire rope is wound on the rope groove of the double broken line winding drum for at least two layers; the dynamic loading monitoring system comprises a servo electric cylinder; a threaded rod of the servo electric cylinder is connected with a steel wire rope fixture through an S type tension sensor; one end of the steel wire rope penetrates through the steel wire rope fixture to be tightly locked; U-shaped through grooves are formed in each of the rope groove and a baffle of the double broken line winding drum; strain gauges are adhered onto the inner wall of each of the U-shaped through grooves. According to the device and method, the dynamic contact stress, produced by the steel wire rope, acting on the surface of the double broken line winding drum and the baffle of the winding drum can be monitored in real time.

A dynamo-electrical machine includes a stator with teeth which are aligned with respect to a rotor, wherein at least a predeterminable number of teeth are surrounded by a winding system which is arranged in slots. The slots which are formed by the teeth and designed to be open, are each closed by a slot sealing element which has an electrically non-conductive and magnetically non-permeable material in which a tooth head widening element is provided in the area of those tooth sections of the tooth heads which face the air gap.

A motor control unit is provided that controls a motor with multi-system windings via motor driving circuits on winding systems based on a current command value including current detecting circuits to detect at least two-phase or more currents for each of the multi-system windings of the three-phase motor, three-phase/two-phase converting sections to convert the detected phase currents to two-phase currents for the multi-system windings, and a failure diagnosing section to perform a current-calculation of the two-phase currents converted to two-phase for the multi-system windings, and to perform a diagnosis failure by comparing a difference of current-calculated results between the multi-system windings and an accumulating value of the difference with respective thresholds.

The invention discloses a winding system for textile machinery. The winding system comprises a control device, an unwinding roller, a winding diameter detecting device, a detecting device and a winding adjustment device, wherein the winding diameter detecting device comprises a length measuring roller, a traction motor and a traction frequency convertor; the detecting device comprises a rotating part and a sensing part matched with the rotating part; the winding adjustment device comprises a winding roller, a speed device, a winding motor as well as a winding frequency convertor and an encode which are electrically connected with the winding motor; the winding frequency convertor is electrically connected with the control device; the encoder is electrically connected with the control device. According to the winding system disclosed by the invention, the accuracy is improved by calculating the winding diameter in real time, so the rotating stability of the winding roller is guaranteed; besides, due to the arrangement of the traction frequency converter, the winding frequency convertor, the encoder and the like, the rotating speeds of the traction motor and the winding motor are controlled by using the control device, and further the constancy of the tension is guaranteed, and the quality of finished yarns is improved.

The invention relates to an intelligently controlled ventilation system capable of improving indoor air quality. Under control of a computer main control machine, the system comprises at least one frequency conversion driving full-heat exchange bidirectional ventilation fan, an air quantity control switch which corresponds to each ventilation sub-area and controls the opening, closing and air quantity of each ventilation sub-area, and a digital control adjustment air door, wherein at least two independent ventilation sub-areas are built; and the frequency conversion driving full-heat exchange bidirectional ventilation fan conducts outdoor fresh air into each ventilation sub-area indoors and exhausts the turbid air in each ventilation sub-area indoors. In the system, a way of manual control and/or intelligent control can be adopted. The system intelligently controls different ventilation sub-areas, ventilates different ventilation sub-areas according to actual needs, realizes fixed point, quantificational and fixed timing control, and fully saves energy; and rich negative oxygen ions are added into the fresh air conducted indoors, so the system has the health-care effects of alleviating mental stress and improving body immunity and health.

The invention discloses a disinfecting method of a robot, a disinfecting device of the robot and the robot. The method comprises the following steps of collecting the disinfectant concentration in a disinfecting space in real time in a disinfecting task executing process; comparing the collected disinfectant concentration with a first threshold value; regulating the disinfectant spraying quantityaccording to the comparison result. The disinfecting method of the robot provided by the invention effectively solves the problems that during hospital operating room disinfection, due to the existence of an operating room circulation wind system or self decomposition of disinfectants in air after atomization, the disinfectant concentration in the disinfecting space is influenced, and further, thefinal disinfection effect is influenced. A disinfectant sensor is arranged on the robot, so that the disinfectant concentration in the disinfecting space is monitored in real time; certain measures are taken, so that the disinfectant concentration in the disinfecting space keeps constant or is kept within a certain range; further, the final disinfection effect is ensured; meanwhile, the waste ofthe disinfectants is avoided.

A LNG filling station intelligent control system disclosed by the present invention is characterized by comprising a gas dispenser control system, a PLC process control system, a gas alarm system, an alarm system, an emergency cut-off system, an instrument wind system and an industrial control computer, wherein the PLC process control system is in signal connection with the gas dispenser control system, the gas alarm system, the alarm system, the emergency cut-off system, the instrument wind system and the industrial control computer separately, and the industrial control computer is in communication connection with the gas alarm system. Meanwhile, the present invention discloses a control method of the LNG filling station intelligent control system. The LNG filling station intelligent control system of the present invention integrates the control of the parts of an LNG filling station highly, realizes the centralized acquisition, display and control, solves the problems that a conventional LNG filling station is dispersive in control, and the devices can not work cooperatively and effectively, and operates safely.