306results about "Generator control details" patented technology

Systems, method, and computer readable medium are provided for a controller for a generator. The system includes a rectifier for converting a first AC signal generated by the generator to a first DC signal; a first DC-DC associated with energy storage and a first mode; a second DC-DC associated with an inverter and a second mode; a switch for alternately toggling between the first DC-DC and the second DC-DC, wherein the first mode prevents output to the electrical grid, and the second mode enables inversion of the second DC signal to a second AC signal via the inverter; and a processor that uses the indicator to operate the switch to operate the generator in the first mode when a connection to the grid does not conform with a parameter, and operate the generator in the second mode when the connection to the grid conforms with the parameter.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, - A balancing circuit containing components that allow current to flow in only one direction, in particular a diode (D) or a component acting like a diode, is connected between the two LP generators (14, 16, 18).

A method for controlling operation of a generator for a wind turbine is disclosed. At least one amplitude of a harmonic in the gearbox vibrations is determined. A torque modulating signal for the generator is generated. A phase angle and the amplitude are adjusted during operation of the generator, until a minimum in amplitude of a resultant vibration is reached, thereby obtaining an adjusted torque modulating signal. The adjusted torque modulating signal is injected into the generator, resulting in the resultant vibration of vibrations of the gearbox and vibrations of the generator, corresponding to the harmonic in the gearbox vibrations, being reduced.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each LP generator (14, 16, 18) includes an energy storage component (C1, L1), and in use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; each LP generator (14, 16, 18) when in use provides at its output an LP generator value corresponding to the value of an energy storage component (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18); Several low power (LP) generators (14, 16, 18); - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, At least one, preferably several and most preferably all LP generators (14, 16, 18) comprise an LP generator value limiting circuit (151), e.g. a voltage limiting circuit or a current limiting circuit.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: a plurality of low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Multiple LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during at least a plurality of states of the HP generator (10) in use; - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, The control unit (22) furthermore determines the contribution of the LP generators (14, 16, 18) according to the following characteristics: The output of the coupling (20) and / or the output of the HP generator (10) is a stepped waveform, particularly at the rising and / or falling edges of a pulse and / or during that pulse. The method is configured to select one or some combination of the above to be achieved.

The invention discloses a doubly-fed fan parameter identification method based on an improved sparrow algorithm, and the method comprises the steps: analyzing the sensitivity of doubly-fed fan parameters, selecting key control parameters, building a doubly-fed fan low-voltage ride-through transient model in a PSCAD (Power System Computer Aided Design), obtaining a plurality of groups of output data through adjusting the key control parameters, and carrying out the identification of the doubly-fed fan parameters. Constructing a multi-target error function of the original model and the identification model; the improved sparrow algorithm is adopted to optimize and solve the established multi-target error function based on the key control parameters and the output data, the identification result of the to-be-identified control parameters of the doubly-fed fan is obtained, an identification model obtained through identification and an original model are compared and verified, the key control parameters in the transient model of the doubly-fed fan can be accurately and reliably identified, and the identification accuracy of the to-be-identified control parameters of the doubly-fed fan is improved. The problems that a traditional doubly-fed fan parameter identification method is low in identification precision, poor in adaptability to extreme working conditions and low in consistency of multiple identification results are effectively solved.

The invention provides a method for constructing a digital twinborn body of a wind turbine generator, and belongs to the technical field of wind power generation, and the method comprises the steps: constructing a refined mechanism model, converting a historical meteorological data sequence into a physical field parameter sequence, inputting the physical field parameter sequence into the refined mechanism model, and outputting a simulation output sequence; acquiring a simulation output sequence and an actual operation output sequence of the wind turbine generator, and calculating a derivative dynamic time warping distance between the simulation output sequence and the actual operation output sequence; sparsification processing is carried out on parameter vectors of the refined mechanism model, and a key parameter subset influencing the derivative dynamic time warping distance is screened out; taking a minimum derivative dynamic time warping distance as a target function, and adopting a moss optimization algorithm to carry out optimization solution on the key parameter subset to obtain an optimal parameter combination; and backfilling the optimal parameter combination into corresponding parameters of the constructed refined mechanism model to obtain the digital twin model of the wind turbine generator. And the model precision is improved.

The invention relates to the technical field of generator control, and discloses an emergency control method, device and equipment for a generator set controller and a medium, the same generator set at least comprises two generator controllers, the method is applied to any current generator controller in the generator set, and the method comprises the following steps: determining whether a target generator controller has a fault or not; the target generator controller is another generator controller in the generator set; if the target generator controller breaks down, power supply of the target generator controller is cut off, and input of a first current and voltage signal and output of a control signal based on a target generator are conducted; and accessing the first current and voltage signal, and carrying out parallel operation control on the target generator and the current generator. According to the invention, the generator controlled by the faulty generator controller can be restarted to solve related faults caused by the faulty generator controller, and the normal generator controller automatically carries out parallel operation control on all generators without manpower, so that the operation reliability of the system is improved.

Provided in the present application are a motor zero position angle calibration method, a vehicle and a storage medium. The method is applied to the field of vehicles, and the method comprises: if an obtained control signal sent by a vehicle control unit is a calibration mode setting signal, reading a reserved bit value of the calibration mode setting signal; if the reserved bit value is a preset calibration value, performing zero position angle calibration processing on a vehicle motor on the basis of the calibration mode setting signal, so as to obtain a calibrated zero position angle; and updating the motor zero position angle on the basis of the calibrated zero position angle, and using the updated motor zero position angle to control the vehicle motor to operate. The method can again determine whether the reserved bit value meets the preset calibration value after reception of the calibration mode setting signal, and uses an idle reserved bit as an identification bit, such that the vehicle motor is prevented from mistakenly entering the calibration mode under signal interference, thereby improving the accuracy of zero position angle calibration, and further ensuring the normal operation of the vehicle motor.

The invention relates to a wireless power transmission-based synchronous motor excitation system for an aero-engine, which belongs to the technical field of wireless power transmission synchronous motor excitation, and comprises a power supply, an inversion module, a metal eddy current resonance compensation network, a passive rectification module and an excitation module, on one hand, a synchronous motor excitation system suitable for wireless electric energy transmission of an engine rotating part is designed and arranged in an aero-engine, power transmission from a power source to a load can be completed without physical connection, the reliability problem of friction of a contact structure is solved, and the structure is simple; on the other hand, a metal eddy current resonance compensation network is introduced into a coupling mechanism of a transmitting end coil and a receiving end coil for wireless electric energy transmission, so that the excitation system of the synchronous motor is in a resonance state, and the compensation inductance and capacitance of the aero-engine under the consideration of the metal eddy current influence can be obtained; and resonance compensation under the influence of the metal eddy current is further realized.

The invention discloses a brushless air-core pulse generator and supercapacitor hybrid energy storage self-excitation type pulse power supply topological structure and a control method, and relates to the field of pulse power supplies. The problems that in the prior art, a storage battery is high in energy storage density, low in power density, short in large-current cycle life, low in high-voltage charging speed and high in step-up ratio, so that a step-up converter between the storage battery and a super capacitor works in a near-saturation working condition, and the charging speed and the charging linearity are seriously affected are solved. The self-excitation pulse power supply topological structure comprises a prime motor, a brushless air-core pulse generator, a self-excitation charging rectifier bridge, a pulse capacitor bank and a load. The prime motor is coaxially connected with a rotor of the brushless hollow pulse generator; the self-excitation charging rectifier bridge is connected in series with the brushless air-core pulse generator and the pulse capacitor bank; and the brushless air core pulse generator and the pulse capacitor bank discharge to a load together in a parallel connection mode. The method is also suitable for the hybrid energy storage field based on three forms of inertia, magnetic field and electric field.

Systems, method, and computer readable medium are provided for producing a DC output, comprising: a turbine for generating a variable AC from a variable flow; a rectifier for converting the variable AC to a variable first DC; a first DC-DC associated with a storage component; a second DC-DC associated with an inverter; a dual mode circuit for alternately toggling between the first DC-DC and the second DC-DC; and a controller for: operating the circuit to store the first DC in the storage component when the first DC is below a target level, and release energy at the target level using the first DC-DC when the energy reaches the target level; operating the circuit to convert the variable DC to the target level using the second DC-DC when the variable DC is above the target level; and output a target level DC including the released energy or the second DC.

Systems, method, and computer readable medium are provided for a controller for a generator. The system includes a rectifier for converting a first AC signal generated by the generator to a first DC signal; a first DC-DC associated with energy storage and a first mode; a second DC-DC associated with an inverter and a second mode; a switch for alternately toggling between the first DC-DC and the second DC-DC, wherein the first mode prevents output to the electrical grid, and the second mode enables inversion of the second DC signal to a second AC signal via the inverter; and a processor that uses the indicator to operate the switch to operate the generator in the first mode when a connection to the grid does not conform with a parameter, and operate the generator in the second mode when the connection to the grid conforms with the parameter.

The invention discloses an energy-saving control method and system for a servo hydraulic motor, and the method comprises the steps: detecting and obtaining the initial state of a load, and determining the initial flow and initial pressure required by the servo hydraulic motor; the initial rotating speed and the initial torque of the servo hydraulic motor are set, the power needed by the servo hydraulic motor is calculated, and therefore the servo hydraulic motor is driven to operate; real-time data of the servo hydraulic motor in the operation stage are obtained, the deviation of the servo hydraulic motor is calculated according to the real-time data, and the operation rotating speed and the operation torque of the servo hydraulic motor are adjusted in real time according to the deviation; when the servo hydraulic motor is in the operation stage, the temperature of hydraulic oil is monitored in real time, when the temperature of the hydraulic oil exceeds a set threshold value, heat of the servo hydraulic motor is recovered through a heat recovery device, and the recovered heat is stored through a phase change material; when the servo hydraulic motor is in the braking stage, electricity is generated through reverse rotation of the servo hydraulic motor, and electric energy generated by electricity generation is stored in the energy storage device.

A method and apparatus for generating electrical power, including providing a generator configured to generate a first voltage, providing a voltage converter configured to operably down-convert the first voltage output to a second voltage output to provide a first amount of power to a set of electrical loads, and changing a power demand for at least a subset of the set of electrical loads, wherein the changed power demand increases the power demanded. To meet the increased power demand, the voltage converter is controlled to operably down-convert the first voltage output to the second voltage output to provide a second amount of power to the set of electrical loads. The second amount of power is greater than the first amount of power. The power-generating capabilities of the generator are not modified between providing the first amount of power and providing the second amount of power.

The invention provides a wind turbine generator control parameter identification method and system based on subsynchronous oscillation characteristics, and the method comprises the steps: carrying out the phase margin sensitivity analysis based on the main oscillation mode of a wind turbine generator grid-connected system, and determining a to-be-identified control parameter; constructing a simulation model of the wind turbine generator, determining an initial value of a to-be-identified control parameter, and determining a to-be-identified control parameter-active output parameter group; performing analog simulation on the simulation model of the wind turbine generator, and determining oscillation characteristics; performing model training on a preset neural network model according to the to-be-identified control parameter-active output parameter group and the oscillation characteristics, and determining the neural network model after model training is completed; and inputting the actual oscillation characteristics and the actual active power output into the neural network model which completes model training, and determining an actual to-be-identified control parameter identification result. According to the method and the device, the key control parameter identification of the wind turbine generator is realized by adopting the finite oscillation data, the calculation amount is small, and the identification efficiency is high.

Electrical apparatus (20) includes an inverter (24) having input terminals for receiving DC input power and output terminals for coupling to an AC power grid. A pulse-width modulation (PWM) generator and drivers (26) drive the switches so as to control respective amplitudes, frequencies, and phases of the output current waveforms of the inverter. Control circuitry (28) receives measurements of respective time-varying voltages and currents on the input and output terminals, computes a model (40) that includes three virtual currents flowing in a synchronous machine that is emulated by the apparatus, wherein the three virtual currents are associated respectively with the three output current waveforms, and controls the PWM generator and drivers responsively to the three virtual currents so as to synchronize the amplitudes, frequencies, and phases of the three output current waveforms of the inverter with the three phases of the AC power grid.

A high power (HP) generator (10) and a method for delivering pulsed high power at high voltage and / or current values ​​to a capacitive load, in particular a plasma process, comprising: - several low power (LP) generators (14, 16, 18), each including an energy storage component (C1, L1), wherein, during use, the energy storage component (C1, L1) is charged to a predetermined value associated with the energy storage component; Each provides, when in use, at its output an LP generator value that corresponds to the value of the energy storage components (C1, C2, Cn, L1, L2, Ln) incorporated in the respective LP generator (14, 16, 18) Several LP generators (14, 16, 18) and - a coupling (20), the LP generators (14, 16, 18) being electrically connected such that a coupling value at an output of the coupling (20) can be obtained which corresponds to an output value of the HP generator (10) and which is higher than the LP generator value at the output of one of the LP generators (14, 16, 18) during use, at least in some states of the HP generator (10); - a control unit (22) configured to select the contribution of the LP generators (14, 16, 18) to the output value of the HP generator (10) during the power delivery of the HP generator (10) in order to produce a rise and / or a decay of a pulse at the output of the coupling (20); Including, The control unit (22) may further be configured to sequentially select the contributions of the LP generators (14, 16, 18) through the LP generators (14, 16, 18), in particular each pulse sequence may start with a different LP generator (14, 16, 18).

The present invention provides a control system for a power generation system, comprising a generator coupled to a turbine via a shaft. The control system includes a memory storing instructions. The control system also includes a processor coupled to the memory and configured to execute the instructions. When the instructions are executed, the processor receives a direct current (DC) bus voltage from an automatic voltage regulator (AVR), wherein the AVR is configured to control the voltage characteristics of the generator and determine the speed of the generator based on the DC bus voltage.

The invention discloses multipurpose electrotherapy equipment, and relates to the technical field of medical instruments, in particular to the multipurpose electrotherapy equipment which comprises a box body, a motor in the box body, a rotating head driven by the motor, a connecting column, a supporting rod, a connector, a piston rod and a power generation plate. After the motor works, the piston rod is driven by the transmission mechanism to reciprocate to impact the power generation plate to generate current. Generated current is transmitted to a current distributor through a current transmitter and a first wire, the current distributor can steplessly adjust output voltage between 6 volts and 25 volts through a current adjusting button according to pathological types, and the current is transmitted to application ends such as a foot pedal through a second wire to be used for electrotherapy. The device is provided with a display screen for monitoring electrical parameters in real time and ensuring treatment safety. The equipment is stable in power generation, the output current can be finely adjusted according to the adaptation period of a patient, the operation is simple and convenient, and electrotherapy requirements of various pathologies can be effectively met.

The invention discloses an integrated control method for an aircraft power supply system. The method comprises the following steps: directly and electrically connecting an engine controller with a generator output contactor, a transformer output contactor, a storage battery output contactor, a transformer rectifier and a storage battery; the engine controller receives the temperature signal, the output voltage signal and the output current signal of the transformer rectifier in real time, judges the working state of the transformer rectifier, and carries out output control and fault protection on the transformer rectifier according to the working state of the transformer rectifier; and the generator controller receives the temperature signal, the voltage signal and the current signal of the storage battery in real time, judges the working state of the storage battery, and performs output control and fault protection on the storage battery according to the working state of the storage battery. The types and the number of airborne equipment are reduced, three different types of controllers, namely a generator controller, a direct current control protector and a storage battery controller, are combined into a whole, and the economical efficiency of a development stage and an external field use and maintenance stage is improved.

A power generation system for supplying power to at least one electrical grid of an aircraft, the power generation system comprising a control device configured to receive a universal operational setpoint and to output a first parameterized setpoint (PCONS1) of a first converter (C1) and a second parameterized setpoint (PCONS2) of a second converter (C2), each parameterized setpoint (PCONS1, PCONS2) being a power supply for switching between the converters (C1, C2) and the first converter (C1) and the second converter (C2). The control device is controlled by a voltage regulation setpoint (RegU) of the distribution voltage or an auxiliary regulation setpoint (RegA) for the turbine, the control device being configured to output a parameterized setpoint with a stable delay with respect to the parameterized setpoint of the voltage conversion (TransU) for the auxiliary conversion (TransA) such that the voltage regulation (RegU) is extended during the auxiliary conversion (TransA).

A solar power system which includes an electric engine power generator assembly to produce and store electrical energy as needed, when solar energy is not available or the level of solar energy is insufficient, to maintain a full or substantially full stored power charge level.

An electrical generation system for supplying at least one electrical network of an aircraft. The electrical generation system includes a control device configured to receive a general operating setpoint and to output a first parameterization setpoint for the first converter and a second parameterization setpoint for the second converter. Each parameterization setpoint being either a voltage regulation setpoint for slaving the converter to a distribution voltage or an auxiliary regulation setpoint for the turbomachine. The control device being configured to output a parameterization setpoint in relation to an auxiliary transition with a stabilization delay relative to a parameterization setpoint in relation to a voltage transition so that the voltage regulation is extended during an auxiliary transition.

The application provides a wind turbine digital twin construction method, belonging to the technical field of wind power generation. The method comprises: constructing a refined mechanism model, inputting a historical meteorological data sequence into the refined mechanism model after converting the sequence into a physical field parameter sequence, and outputting a simulation output sequence; obtaining the simulation output sequence and the actual operation output sequence of the wind turbine, and calculating the derivative dynamic time warping distance of the two sequences; performing sparse processing on the parameter vector of the refined mechanism model, and screening out a key parameter subset affecting the derivative dynamic time warping distance; taking the minimization of the derivative dynamic time warping distance as an objective function, and using a moss optimization algorithm to optimize and solve the key parameter subset to obtain an optimal parameter combination; and backfilling the optimal parameter combination into the corresponding parameters of the constructed refined mechanism model to obtain a wind turbine digital twin model. The model precision is improved.

A method for a power system is disclosed. The method includes receiving signals, activating switches to pass a current from a power source to an apparatus. The method also includes deactivating switches and bypassing the power source. The power source may be a photovoltaic power source. The signals may be power line communication (PLC) signals.

An automobile double-motor power generation system comprises a power generator, a special power generator, a secondary gear train, a primary gear train and an engine, the power generator is mounted at the upper left corner of the engine, the special power generator is mounted at the lower left corner of the engine and connected through the secondary gear train, the power generators are connected through the primary gear train, and the power generator is mounted at the lower left corner of the engine. A flywheel is arranged on the lower portion of the engine and connected with a power output shaft of the engine, the engine transmits power to the flywheel through the power output shaft by doing work and drives the flywheel to rotate, and a belt installed on the flywheel is driven by the flywheel to move. And the generator and the special motor are finally driven to rotate and generate electricity through the movement of each wheel disc on the engine. According to the utility model, the special generator and the generator are integrated on one engine, so that the utilization space of the whole vehicle can be saved, two different power supply modes are provided for the whole vehicle, and a larger operation space is provided for the arrangement of the whole vehicle.

The invention discloses a power output device capable of coping with various emergencies, which belongs to the technical field of power output and comprises a container generator set, a high-voltage series output device, a low-voltage parallel output device, an alternative second starting device and a master controller CM1. The container generator set, the high-voltage series output device, the low-voltage parallel output device and the alternative second starting device are all connected with the master controller CM1 through communication lines and are all monitored by the master controller CM1. And the master controller CM1 is provided with a control switch for controlling the operation of the container generator set, the high-voltage series output device, the low-voltage parallel output device and the alternative second starting device. The invention discloses a power output device capable of coping with the use of the container generator set in various emergencies.