This application provides a power supply system. The power supply system includes first switch module, an UPS, and a plurality of power consumption branches. An input end of the first switch module is connected to a plurality of power supply apparatuses. An output end of the first switch module is connected to an input end of the UPS. The first switch module is switched between the plurality of power supply apparatuses to supply power to the UPS. An output end of the UPS is connected to each power consumption branch. The UPS is configured to receive electric energy and input a first voltage to each power consumption branch. Each power consumption branch includes a first transformer module and at least one power consumption load. The first transformer module is configured to convert the first voltage into a second voltage, and then provide the second voltage to the power consumption load.

A method for determining a function of a capacitor of a passive filter circuit, which partially reduces line-conducted interference of an electrical device electrically coupled to a power supply system via the passive filter circuit. The passive filter circuit comprises the capacitor having a predefined capacitance value and a choke having a predefined inductance value. An electric capacitor voltage on the capacitor is detected. A connection voltage of the electrical device is detected. Spectral components are determined for the capacitor voltage and the connection voltage. The function of the capacitor is determined by analysing the spectral components in consideration of the inductance value of the choke by a statistical processing operation.

Vehicles that are capable of connecting to the AC grid are described that comprise a prime mover and at least one motor generator. In one embodiment, a vehicle may be constructed as a plug-in hybrid system and using the powertrain under controller instruction to either place power on an AC power line (to service AC grids) or to draw power from the AC power line to add electrical energy to the batteries on the vehicle. In some aspects, vehicles may test whether the power needed to service the AC power line may be satisfied by the on-vehicle batteries or, if not, whether and how much power to extract from the prime mover. In some aspects, vehicles may have a thermal management system on board to dynamically supply desired heat dissipation for the powertrain, if the powertrain is using the prime mover to supply power to the AC grid.

A low-carbon energy utilization system for steam and power cogeneration of oil field is provided, which includes a first water pump device, a second water pump device, electric heating devices, a liquid mixer, a fossil-fuel steam injection boiler, a steam mixer, a super-heater, and a new energy generation station. The electric heating devices are connected to the first water pump device. The liquid mixer is connected to the second water pump device and the electric heating devices. The fossil-fuel steam injection boiler is connected to the liquid mixer. The steam mixer is connected to the electric heating devices and the fossil-fuel steam injection boiler. The super-heater is connected to the steam mixer. The new energy generation station is used for supplying power to the electric heating devices.

A microgrid system for water pumps is provided herein and includes a solar array comprising three independent branches and a first pair of photovoltaic modules and a second pair of photovoltaic modules on each of the three independent branches, each of the first pair photovoltaic modules and the second pair of photovoltaic modules connected by a corresponding single-phase inverter connected in series with each other and connected to a common controller configured to connect the first pair photovoltaic modules and the second pair of photovoltaic modules to a grid during a first mode of operation and connect the first pair photovoltaic modules and the second pair of photovoltaic modules to a water pump during a second mode of operation, different from the first mode of operation.

A power supply system for an electrically driven wellsite facility is provided. The power supply system includes a combined power supply module configured to be connected with the electrically driven wellsite facility, the combined power supply module comprising at least one generator and at least one power distribution station, wherein the at least one generator and the at least one power distribution station are disposed in parallel or combined to a power grid for supplying power to the electrically driven wellsite facility.

System, method, and interface for visualized resource allocation and algorithms for the reallocation of resources to achieve a goal. The system analyses an initial state of resource allocation, a cost function for undesirable resources, and a set of potential incremental improvements, each with an associated cost, and determines a step-wise path of applying the incremental improvements to achieve an ultimate resource-allocation goal in an economically feasible way. Simultaneously, a user interface depicts the state of the allocation at the beginning, at the end, and along the path, allowing an intuitive understanding of how the goal will be achieved.

An integrated utility system, comprising: at least one heat pump which includes a compressor for processing water mist from an evaporator and providing the water mist to a condenser; a thermal reservoir configured to contain water and operatively connected to the condenser; a heat management system configured to receive and process excess heat generated between the thermal reservoir and condenser. The heat management system comprises: a plurality of sensors for measuring water pressure, temperature and flow; at least one control valve for controlling movement of a thermal energy from thermal sources; at least one thermal sink; a thermal storage; a plurality of heat exchangers fluidly connected to the thermal sources, to the at least one thermal sinks, to the thermal reservoir and to a plurality of pumps configured to circulate a heat exchange fluid between the thermal sources, thermal reservoir and the at least one thermal sink.

Performance optimization of power plants is one of the major challenges. Several machine learning based techniques are available which are used for optimization of the power plants. Coal selection and blending is critical to ensuring optimum operation of thermal power plants. The present disclosure provides a system and method for optimum coal selection for the power plant and power plant optimization. The system mainly comprises two components. First, a coal usage advisory module providing coal usage and blending ratio advice to the operators based on the available coal. The optimization is with respect to the entire power plant operation including its components. And second, a performance optimization advisory module provides operation instruction for boiler, SCR, APH and other power plant equipment based on the implemented coal blend in real-time.

An electrical energy supply device having a plurality of usage units, each usage unit being adapted to generate or to buffer electrical energy. The usage units in the energy supply device are divided up into strands and each strand is adapted to generate a summed voltage by a series circuit of the usage units, and each strand end is connected across a respective switching unit to a busbar assembly and within each strand a bridging circuit is provided for each usage unit and a control device is adapted to identify a defective usage unit in one of the strands and to then galvanically separate the strand by its switching units from the busbar assembly.