In the present legacy electrical power generation and distribution system, the power quality delivered to end consumers is being degraded by a number of disruptive technologies and legislative impacts; especially with the rapidly increasing myriad of privately owned and operated domestic and commercial distributed energy generation (DEG) devices connected at any point across a low voltage (LV) distribution network. The present invention bypasses this increasing critical DEG problem by offering a solution comprising an energy processing unit (EPU) that is installed at the electrical power point of use (POU).

An AC-AC voltage transformation device is provide, which includes: a first diode (D1), its positive electrode connects to one end of a (AC) power source; a second diode (D2), its negative electrode connects to the joint of D1 and the power source; a third diode (D3), its positive electrode connects to the other end of the power source; a fourth diode (D4), its negative electrode connects to the joint of D3 and the power source, and its positive electrode connects to the positive electrode of D2; a transformer (10), its primary side has a first coil (N1) and a second coil (N2), wherein N1 connects to the negative electrode of D1, and N2 connects to the negative electrode of D3, and its secondary side connects to a load; an electrode switch (SW), one end thereof connects to the joint of D2 and D4, and the other end thereof connects to the joint of N1 and N2.

An energy saving alternate current (AC) series voltage regulator comprises an AC high frequency (HF) series voltage buck power regulator, a bypass contactor (K1), a bidirectional AC semiconductor device (S1) connected in parallel with the bypass contactor and a control circuitry. Under the condition of an input AC mains voltage (Vin) drops below a specified and set optimum energy savings voltage or a lower selected voltage point, the control circuitry transitions both the slow bypass contactor and the fast bidirectional AC semiconductor device, then the AC high frequency (HF) series voltage buck power regulator are switched out to save the AC high frequency (HF) series voltage buck power regulator internal power electronics usage. Under this condition, the lower input AC mains voltage is directly delivered to an electrical load by the contactor bypass system, hence achieving more energy savings.

A power conversion device 1 includes a matrix converter circuit 10 including a plurality of switching elements and being configured to perform bidirectional power conversion between alternating current power on a primary side and alternating current power on a secondary side, a power conversion control unit 114 configured to switch on and off the plurality of switching elements in unison with a carrier wave to cause an alternating current on the secondary side to follow a control command, and a carrier wave changing unit 116 configured to change, based on a nearness level between a frequency on the primary side and a frequency on the secondary side, a frequency of the carrier wave.

The present invention relates to methods for controlling a multi-channel power supply and to corresponding devices. According to one embodiment of the invention, a method for controlling a multi-channel power supply is provided. Therein each channel comprises an intrinsic channel resistance and a resistor adjustable between a lowest resistance and a highest resistance. The method comprises the following steps: Measuring for each channel a measure indicative of a current in the respective channel; Adjusting, on the basis of the measures, the adjustable resistor in the channel having the highest intrinsic channel resistance to the lowest resistance; and Adjusting, on the basis of the measures, the adjustable resistor(s) in the remaining channel(s), such that currents in each channel are balanced. With it a concept of simultaneously performing current balancing and reduction of power dissipation is provided.

The present invention relates to methods for controlling a multi-channel power supply and to corresponding devices. According to one embodiment of the invention, a method for controlling a multi-channel power supply is provided. Therein each channel comprises an intrinsic channel resistance and a resistor adjustable between a lowest resistance and a highest resistance. The method comprises the following steps: Measuring for each channel a measure indicative of a current in the respective channel; Adjusting, on the basis of the measures, the adjustable resistor in the channel having the highest intrinsic channel resistance to the lowest resistance; and Adjusting, on the basis of the measures, the adjustable resistor(s) in the remaining channel(s), such that currents in each channel are balanced. With it a concept of simultaneously performing current balancing and reduction of power dissipation is provided.

Disclosed is a biped robot and multi-configuration robot capable of being spliced autonomously, and a control method of the multi-configuration robot. The biped robot comprises a torso, arms, legs, a tolerance docking sleeve, and a torso docking device. The arms are correspondingly arranged at the left and right sides of the torso, and two legs are arranged at the lower side of the torso. The tolerance docking sleeve is movably arranged at the rear side of the torso through a base, and the torso docking device is fixed to the front side of the torso. Single biped robots in the present disclosure can form a multi-configuration legged combined body in a self-organization and reconstruction mode so as to achieve bipedal, quadrupedal, hexapodal and other multi-legged configurations. The motion stability and the load capacity of the legged robot are improved through the splicing combination of the modular legged robots.