A voltage monitoring system having a microcontroller with an analog-to-digital converter with a first channel, and a memory device is provided. The microcontroller includes a monitoring application and a hardware abstraction layer. The monitoring application sends a first encoded channel number to the hardware abstraction layer. The hardware abstraction layer determines a first channel number based on the first encoded channel number, and obtains a measured voltage value associated with the first channel number. The hardware abstraction layer sends a second encoded channel number and the measured voltage value therein to the monitoring application. If the first encoded channel number is equal to the second encoded channel number, then the monitoring application stores the measured voltage value in the memory device.

Provided are a control method and system for enhancing an endurance capability to an abnormal voltage of a wind turbine generator system. The control method, includes; providing a doubly-fed wind turbine generator system connected to a power grid; detecting a voltage of the power grid, and determining whether the voltage of the power grid has a fault; when the voltage of the power grid has a fault, detecting a voltage of the DC buses, and determining whether the voltage of the DC buses exceeds a limit value; when the voltage of the DC buses exceeds the limit value, performing integrated system coordination control according to an abnormal operating condition mode; and when the voltage of the power grid returns to a normal range, performing integrated system coordination control on the according to a normal operating condition mode.

The invention relates to a cascade activation method and mechatronic system for simultaneous generation and consumption. The system includes a non-return diode connected to an electric generator; a first voltage regulator connected to a microcontroller; a voltage converter; and an actuator, which has an activation voltage greater than the first activation voltage of the first voltage regulator. The actuator is configured to simultaneously consume a portion of the electrical energy generated by the electric generator. The method includes the steps of listing the elements of the mechatronic system that require power; calculating the activation sequence of the elements based on the minimum activation voltage and the activation time interval; selecting the electric generator based on the energy/power that needs to be provided to the mechatronic system; and programming the microcontroller with the activation sequence.

Systems and methods for protecting a generator are provided. An example method can include receiving a signal indicative of a voltage associated with a stator. The method can include receiving a signal indicative of a nominal voltage associated with the stator. The method can include receiving a signal indicative of a monitoring state associated with the generator. The method can include receiving a signal indicative of a deadband range. The method can include determining a voltage ratio based at least in part on the voltage associated with the stator and the nominal voltage. The method can include determining an adjusted operating limit using a multiplier determined based at least in part on the voltage ratio. The method can include generating a power command to control operation of the generator based at least in part on the adjusted operating limit.

An electrical generator (114) and a power electronics interface (115) for a direct-drive turbine (110). The turbine (110) may include a rotor (112) for transforming kinetic (from, e.g., wind, water, steam) into mechanical energy, the generator (114) for transforming the mechanical into electrical energy, and the power electronics interface (115) for conditioning the electrical energy for delivery to a power distribution grid (124). The interface (115) includes a three-phase single-stage boost inverter (120) for converting a lower DC voltage into a higher AC voltage, and which uses a synchronous reactance of the generator (114) as a DC link inductance. The turbine (110) has neither the gearbox of indirect-drive designs nor the electrolytic capacitor bank of conventional direct-drive designs, while still allowing for a substantially smaller number of generator poles, resulting in reduced size, weight, complexity, and cost.

A field circuit includes a positive pole side switching element which is for controlling field current that flows in a field winding and a negative pole side switching element which is for interrupting the field current; a field circuit control section includes a field high-speed interruption determination block and a field current interruption speed control block; and at the time of interrupting the field current at a high speed, the field current is interrupted immediately by turning OFF both switching elements of the positive pole side and the negative pole side and interruption speed of the field current is controlled by intermittently driving the negative pole side switching element.

The invention relates to a voltage regulator (43) for a motor vehicle alternator (44). The device comprises a control module (I) for controlling an excitation current (lexc) in an excitation winding (3) of the alternator (44) according to a difference (5) between a setpoint voltage (DO) and a control voltage (Dbat) of an on-board network (9). The on-board network (9) of the vehicle is powered by a battery (10) to which the alternator (44) is connected. According to the invention, the voltage regulator (43) further comprises a safety module (30) that monitors the control voltage (Ubat) and which is separate from the control module (I). In a particular embodiment, the control module (I) and the safety module (30) are connected electrically by external bonding interconnections.

An alternator configured for use in a vehicle includes a housing, a stator located within the housing, a field coil, a regulator, and a transceiver. The field coil is positioned in proximity to the stator and is configured for rotation relative to the stator. The regulator is electrically connected to the field coil and is configured to supply the field coil with an electrical signal based on a control signal. The transceiver is electrically connected to the regulator and is configured to wirelessly receive the control signal from an engine control module of the vehicle and to transmit the control signal to the regulator.

A P terminal that is connected to an armature coil, an LIN terminal for LIN communications, and an interface circuit are provided, and the interface circuit converts serial signals which are input from the P terminal and the LIN terminal into parallel signals and transmits scan test signals input from the P terminal and the LIN terminal to a digital circuit and transmits a scan test signal output from the digital circuit to the LIN terminal.

An output of a generator may vary according to the speed of the engine, physical characteristics of the engine, or other factors. A profile for a generator that describes a periodic fluctuation in an operating characteristic for the generator is identified. A field current of an alternator associated with the generator is modified based on the profile for the generator in order to counter variations in the output of the generator.