Disclosed are a driver IC circuit of an intelligent power module, an intelligent power module and an air conditioner. The driver IC circuit includes: an operating voltage input end, an inverter logic buffer circuit, an upper bridge driver circuit, a lower bridge driver circuit, a PFC logic buffer circuit, a PFC driver circuit, a first voltage regulation control input end, a second voltage regulation control input end, a first voltage regulation module and a second voltage regulation module. The first voltage regulation module increases or decreases the operating voltage according to the first voltage regulation control signal; the second voltage regulation module increase or decreases the operating voltage according to the second voltage regulation control signal; or output the operating voltage to the PFC logic buffer input circuit and the PFC driver circuit. The problem that existing driver IC circuits cannot directly drive SiC-based power switching devices can be solved.

A control system for monitoring a motor and wheel drive gearbox of an irrigation system drive train. The control system includes a motor sensor for sensing an operating state of the motor and a gearbox sensor for sensing an operating state of the wheel drive gearbox. If the motor operating state exceeds a motor operating state threshold or changes too quickly, or if the wheel drive gearbox operating state exceeds a wheel drive gearbox operating state threshold or changes too quickly, the control system operates the drive train at a reduced capacity or in a modified mode such that the operating state is not exceeded or does not change too quickly.

In a dual-inverter type of motor control apparatus which controls a synchronous motor having two or more open-end armature windings corresponding to respective phases, first and second inverter control circuits control the motor by supplying voltage commands to corresponding ones of the two inverters, with a combination of respective control methods executed by the inverter control circuits for generating the voltage commands being determined such as to provide a high speed of control response, while preventing control interference caused by effects of component characteristic disparities, such as deviations between timings of updating the voltage commands by the two inverter control circuits.

A dual actuated power pack (300) comprises a battery (104) and first (101) and second (102) electric motors, as well as a power generator (103). The first electric motor (101) is powered by the battery (104) and the second electric motor (102) by a grid (106). The first and second electric motors (101, 102) are mechanically coupled (108) with each other so that when said second electric motor (102) is powered, said second electric motor (102) actuates (109) said power generator (103) and said first electric motor (101) at the same time, whereupon the first electric motor (101) functions as a hi-power battery charger and recharge the battery (104) when said second electric motor (102) actuates (109) the power generator (103). When the second electric motor is not used, the first electric motor (101) is powered (104, 105), and the power generator (103) is actuated (108) by said first electric motor (101).

A dual actuated power pack (300) comprises a battery (104) and first (101) and second (102) electric motors, as well as a power generator (103). The first electric motor (101) is powered by the battery (104) and the second electric motor (102) by a grid (106). The first and second electric motors (101, 102) are mechanically coupled (108) with each other so that when said second electric motor (102) is powered, said second electric motor (102) actuates (109) said power generator (103) and said first electric motor (101) at the same time, whereupon the first electric motor (101) functions as a hi-power battery charger and recharge the battery (104) when said second electric motor (102) actuates (109) the power generator (103). When the second electric motor is not used, the first electric motor (101) is powered (104, 105), and the power generator (103) is actuated (108) by said first electric motor (101).

A control device of a motor includes difference calculation circuitry that calculates a difference between a current rotation speed and a target rotation speed of the motor, coefficient correction circuitry that outputs corrected proportion coefficient and integration coefficient by multiplying each of an initially set proportion coefficient and integration coefficient by a correction coefficient, output voltage determination circuitry that calculates at least one of a proportional term in which the difference is multiplied by the corrected proportion coefficient and an integral term in which the difference is multiplied by the corrected integration coefficient and the result is integrated and determines one of the proportional term and the integral term or the sum of the two terms as a control value of the output voltage, and signal generation circuitry that generates a control signal on the basis of the control value.

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A power distribution trailer distributes the electric power generated by the power generation system at the power generation voltage level to the single VFD and converts the electric power at a power generation voltage level to a VFD voltage level and controls the operation of the single shaft electric motor and the single hydraulic pump. The power distribution trailer converts the electric power generated by the power generation system at the power generation level to an auxiliary voltage level that is less than the power generation voltage level. The power distribution trailer distributes the electric power at the auxiliary voltage level to the single VFD that controls an operation of the of the auxiliary systems.

An apparatus includes a multi-channel DC bus assembly comprising a first channel and a second channel, a first electromechanical device coupled to a positive DC link of the first channel, and a second electromechanical device coupled to a positive DC link of the second channel. A first DC-to-AC voltage inverter is coupled to the positive DC link of the first channel and a second DC-to-AC voltage inverter is coupled to the positive DC link of the second channel. The apparatus further includes a bi-directional voltage modification assembly coupled to the positive DC link of the second channel and a first energy storage system electrically coupled to the first electromechanical device.

An electric driven hydraulic fracking system is disclosed. A pump configuration that includes the single VFD, the single shaft electric motor, and the single hydraulic pump that is mounted on the single pump trailer. A power distribution trailer distributes the electric power generated by the power generation system at the power generation voltage level to the single VFD and converts the electric power at a power generation voltage level to a VFD voltage level and controls the operation of the single shaft electric motor and the single hydraulic pump. The power distribution trailer converts the electric power generated by the power generation system at the power generation level to an auxiliary voltage level that is less than the power generation voltage level. The power distribution trailer distributes the electric power at the auxiliary voltage level to the single VFD that controls an operation of the of the auxiliary systems.

A configuration instruction associated with configuring a plurality of batteries which supply power to a plurality of motors in a vehicle is received. The batteries are configuring as specified by the configuration instruction, where the batteries are able to be configured in a plurality of configurations, including: a first configuration where at least some of the batteries are electrically connected together in parallel and a second configuration where at least some of the batteries are electrically connected together in series.