7 results about "Phase balancing" patented technology

A system for adaptive electrical load balancing and phase balancing in a multi-node power grid, the system comprising: a plurality of electrical nodes interconnected via a multi-phase power distribution network, each electrical node comprising a sensor unit configured to measure electrical parameters such as phase voltage, phase current, phase angle, and power factor; an analog-to-digital converter unit coupled to the sensor unit and configured to convert measured electrical parameters into digital signals; a processing unit operationally coupled to the analog-to-digital converter unit and configured to determine the load distribution characteristics and phase imbalance states across the plurality of electrical nodes;a switching unit with a plurality of controllable switching elements arranged such that electrical loads can be selectively connected to different phases and nodes; and a communication unit configured to send and receive data between the numerous electrical nodes and at least one processing unit, the processing unit being configured to generate control signals based on the determined load distribution characteristics and phase imbalance conditions to actuate the switching unit to redistribute electrical loads across phases and nodes in order to achieve a balanced phase load.

A balun circuit addresses the bandwidth issue by using symmetric amplitude division and phase delay networks to convert single-ended signals to differential signals. Because the balun circuit's balance characteristics are guaranteed over a very wide bandwidth, other performance characteristics that can limit the operating bandwidth, such as impedance matching and insertion loss, can be carefully addressed without concern for amplitude and phase balance. A balun circuit splits a single-ended signal into four differential paths through symmetric networks and applies phase inversion by inverting the polarity of each differential path, thereby reducing the complexity, size, and loss of the balun circuit's overall configuration.

This application discloses a three-phase balancing device, control method, apparatus, and medium. The three-phase balancing device includes a first control switch, the input terminal of which is connected to a three-phase input power supply; a second control switch, the input terminal of which is connected to the output terminal of the first control switch; a first AC contactor, the input terminal of which is connected to the input terminal of the second control switch; an energy-saving device, the input terminal of which is connected to the output terminal of the first AC contactor; a third control switch, the input terminal of which is connected to the output terminal of the energy-saving device, and the output terminal of which is connected to an external load; and a second AC contactor, the input terminal of which is connected between the first and second control switches, and the output terminal of which is connected to the external load. This application enables dynamic three-phase balancing.

The application relates to a control method and device of an MMC-DES integrated system, equipment, a storage medium and a product. The method comprises the following steps: determining a direct-current input current reference value corresponding to a desired output power of the MMC-DES integrated system; determining a global balancing current reference, an inter-phase balancing current reference and an intra-phase balancing current reference in the MMC-DES integrated system based on a global, inter-phase and intra-phase three-level energy balancing management mechanism of the MMC-DES integrated system; determining a bridge arm voltage reference value based on the direct-current input current reference value, the global balancing current reference, the inter-phase balancing current reference and the intra-phase balancing current reference; and controlling the MMC-DES integrated system based on the bridge arm voltage reference value. The method can realize stable operation of the system and reasonable distribution of energy.

The embodiment of the invention discloses an eight-path power divider, which adopts a ceramic bottom plate as a stable substrate and a ferrite magnetic core as a magnetic circuit core, and is combined with a specific winding layout and an impedance matching network, so that a signal distribution path is effectively optimized, energy loss and phase mismatch are reduced, and meanwhile, the isolation performance between ports and the mechanical stability are improved. The power divider has the advantages of low insertion loss, excellent phase balance degree, high isolation degree between ports and good environmental adaptability.

The embodiment of the invention discloses a five-path power divider, which effectively solves the problems of non-uniform distribution of an electromagnetic field and infirm fixation of internal elements through the collaborative design of a ceramic bottom plate as a supporting base body and a ferrite magnetic core and a multi-coil winding in combination with the optimized layout of an impedance capacitor and an isolation resistor. Uniform distribution and high isolation of five paths of signals are achieved, the structural reliability is high, the signal distribution uniformity is good, the port isolation is excellent, and the phase balance degree is high.