5results about How to "Meet load demand" patented technology

The invention discloses an energy-saving optimization control method and system of an air compression station building, a medium and a product, and belongs to the field of air compression station building energy-saving control, and the method comprises the steps: collecting multi-source operation data of the air compression station building in a current sampling period; based on the multi-source operation data, the real gas consumption of the user in the current sampling period is calculated through the mass conservation relation among the gas supply amount, the gas storage variable amount and the gas consumption; inputting the real gas consumption of the user into a preset gas consumption prediction model, outputting gas consumption prediction data in future preset time, and solving to obtain gas supply distribution of each air compressor based on the gas consumption prediction data and a preset power-gas supply relation model of each air compressor; and on the basis of all the air supply distributions, an operation instruction is generated, all the air compressors are controlled to operate, and energy-saving optimization control is completed. By implementing the method, the problem that in the prior art, due to the fact that the outlet flow of the air compressor is directly adopted as the user gas consumption, gas consumption requirement recognition is not accurate can be solved.

The application relates to the technical field of micro-grid energy management, and discloses a micro-grid dynamic coordination control method for distributed energy. The method acquires a data set of multiple monitoring nodes of a micro-grid in a historical operation interval; performs multi-resolution fluctuation analysis on an energy output data set, an energy demand data set and a system frequency data set to generate an output fluctuation index, a demand fluctuation index and a frequency fluctuation index; takes the fluctuation index as a guide variable, adopts a group optimization algorithm to explore in a micro-grid control parameter space, and locates an optimal control interval; periodically adjusts distributed power generation units and load units in the micro-grid according to the optimal control interval, generates a regulation and control instruction set and executes the regulation and control instruction set to achieve dynamic coordination control. The application realizes accurate interval positioning and efficient coordinated operation of micro-grid control, and effectively improves the stability and regulation and control efficiency of a distributed energy system.

The invention relates to the technical field of heat pump control, and discloses a multi-heat-pump linkage control method, device and system and a storage medium, which are used for balance control of multiple heat pumps, meet the load requirement, start the heat pumps to operate in the optimal interval, improve the energy efficiency, reduce the energy consumption and reduce the cost. The multi-heat-pump linkage control method comprises the steps that the first actual starting number and multiple operation condition parameters of the heat pump centralized control system in the current adjusting period are obtained; determining the maximum conversion rate corresponding to each started heat pump in a preset heat pump performance monitoring table according to the plurality of operation condition parameters; a centralized control conversion rate reference value is determined according to the maximum conversion rates corresponding to the multiple heat pumps, and a target operation frequency interval corresponding to the centralized control conversion rate reference value is obtained; and performing linkage control on each heat pump in the heat pump centralized control system according to the plurality of operation condition parameters, the first actual starting number and the target operation frequency interval.

The application provides a control method of an axial flow variable pitch unit and relates to the field of automatic control. The axial flow variable pitch unit suitable for the control method comprises a control unit, an excitation system, a speed regulation system, a water pressurizing system, a draft tube and guide vanes, wherein the water pressurizing system comprises a water pressurizing main valve and a supplementary air valve. When the unit is in a power generation working condition, the active power thereof is reduced to a preset value, the loss of excitation protection, the loss of step protection and the reverse power protection are sequentially exited, the speed regulation system enters a phase modulation mode, the guide vanes are fully closed, the water pressurizing system is used for water pressurizing, and the water pressurizing main valve and the supplementary air valve are sequentially opened. When the water level is reduced to a preset minimum water level, the water pressurizing main valve is closed, the water level is controlled through the supplementary air valve, the excitation system enters the phase modulation mode, the active power is absorbed and the reactive power is emitted, and the unit operates in a phase modulation working condition. The control method adds the phase modulation working condition operation mode to the axial flow variable pitch unit, so that the axial flow variable pitch unit can absorb a small amount of active power from a system and provide reactive power to the system.

The present application belongs to the technical field of high-efficiency energy-saving air conditioner, and discloses a finned tube heat exchanger, a multi-system heavy load air conditioner main unit and an equipment platform. The finned tube heat exchanger is provided with heat exchange tube groups penetrating through the fin plate in parallel along the short side direction of the fin plate; the heat exchange tube groups are connected to different compressors to construct different air conditioner unit main units; the air conditioner main unit comprises at least two air conditioner unit main units; and the air conditioner main unit equipment platform is provided with the air conditioner main unit in the transverse direction. The combination of multiple small-power air conditioner unit main units in multiple air conditioner main units can more efficiently meet the wide variation and partition variation of the building heat load, and increase the flexibility of the air conditioning system. The present application also comprises the combination of the air conditioner unit main unit and the air energy water heater main unit, and the combination of the air conditioner unit main unit and the air energy water heater main unit. The present application improves the utilization coefficient of the whole two-in-one finned tube heat exchanger, and improves the COP of the two systems of the air conditioner unit main unit and the air conditioner unit main unit (air energy water heater main unit).