42results about How to "Achieve autonomous operation" patented technology

The related control and management system for mini power network comprises: the top organization layer to start system and send connection command to next layer for channel building, the middle coordinate layer as connected loop structure to receive command from last layer and start to build communication channel, and the bottom execution layer to control distributed energy combination when the middle layer decides the energy fit to be combined. Wherein, from top to bottom, the control precision increases successively, while the AI level decreases successively.

The invention discloses a distributed network firewall system of Linux based on a defense strategy, which provides network security protection for a computer with a Linux operating system in a local area network. The system has a distributed structure which consists of a server terminal subsystem and a client subsystem. In the network firewall system, a network topologic structure for the local area network is firstly constructed in the server terminal for the local area network to be protected and then services to be protected and possibly attacked manners are selected and a defense rule document is generated. The defense rule document is timely updated in the client system and deployed to achieve the purpose of protection. A plurality of defense rules aiming at different computers and services in the network are generated by means of strategy reasoning and explanation of the client system to protect all computers with the client subsystem and firewall correspondingly. One defense strategy is set for a single network node to safely protect the plurality of network nodes simultaneously.

The invention discloses a coordination control method of an isolated island DC micro grid. The method comprises the following steps: aiming at the isolated island DC micro grid composed of a renewable energy power generation unit, an accumulator energy storage unit, and an AC / DC load unit, firstly performing charging / discharging control on an accumulator so as to enable the DC bus voltage to change along the accumulator SOC according to segmented drooping characteristics; and then realizing the autonomous running of the renewable energy power generation unit and the AC / DC load unit by taking the DC bus voltage as a coordination signal; enabling the renewable energy power generation unit to run in reduced power when the SOC approaches the upper limit to cause the boosting of the DC bus voltage; and enabling the load unit to run in load shedding when the SOC approaches the lower limit to cause the stepping down of the DC bus voltage. By use of the coordination control signal disclosed by the invention, the accumulator SOC is used for controlling the DC bus voltage and the DC bus voltage is used as the coordination signal between the micro sources in a power grid, the autonomous running of each micro source is realized; the deep charging / discharging of the accumulator is avoided by reducing the power of the renewable energy power generation unit or shedding the load of the load unit when the SOC approaches to the limit value.

The invention discloses an environmental energy collector and its early warning system and application method, relates to the field of micro energy technology and micro system, and solves the problem of inconvenient use of batteries and cables of sensing nodes in outdoor environments such as forests. The present invention includes that the rotating inner skeleton structure (7) converts rotational energy into electrical energy through a rotating-stationary friction group; the rotating-stationary friction group includes a comb-toothed metal electrode, a negative friction material layer (8) and a positive friction material layer ( 10), the positive friction material layer (10) is attached to the rotating inner skeleton structure (7), the two comb-tooth-shaped metal electrodes are staggered to surround multiple separation areas, and the negative friction material layer (8) is filled in multiple The blades in the partition area, the positive friction material layer (10) is attached to the blades. The invention utilizes green energy to realize independent power supply and independent operation.

A method for coordinating energy use of an integrated energy system based on virtual energy storage according to the present invention comprises the following steps: acquiring basic operating parameters of an integrated energy system managed and controlled by different agents; aiming at minimizing building operating costs, constructing intelligent building-level optimized operation model; and establish a virtual energy storage model; at the agent level, based on the virtual energy storage model of a single building, construct the optimization objectives and constraints of the agent-level operation strategy for multiple buildings considering the total cost of agent operation, and calculate the The quantified value of virtual storage; at the interaction level between multi-agents and distribution network, construct the optimization target, determine the objective function and constraint conditions of the regional comprehensive energy system energy coordination model based on multi-agents, and calculate the comprehensive energy based on virtual energy storage The system uses the optimal solution capable of coordinated control. According to the decision-making target, the present invention maximizes the utilization of various resources of IES at various levels such as buildings and parks with the distribution network as the core, and satisfies the multi-subject energy demand of buildings, parks and distribution networks.

The invention provides a distributed power grid system, comprising a first-grade node, a second-grade power network, a first secondary-grade node, a first user, a second secondary-grade node, a second user, a third secondary-grade node and a third user, wherein a power device of the user performs the power energy exchange through the respective second-grade node and the second-grade power network; the first-grade node can coordinate power energy exchange between the different second-grade nodes through the secondary-grade power network.

When it is not possible for a power generation device to operate coupled to an electric power system, an autonomous operation of connection and disconnection of a load of the power generation device is performed along an efficiency-characteristics curve within a speed range from a rated speed to a maximum speed in the efficiency-characteristics curve of an energy source. During the autonomous operation, an aperture command is outputted to an inlet valve of a water turbine and a first converter is operated in a converter mode when an operation preparation command is outputted by a control unit, a second converter is operated in an inverter mode when a voltage is established by of a DC linkage unit, and the load is connected when the operation preparation is completed.

The invention provides an autonomous control method for a GEO (Geosynchronous) orbit satellite by using angle information only. The method comprises the steps of correcting the orbit deviation of a star sensor and an infrared earth sensor; calculating the projection of a geocentric unit vector in an inertial equatorial coordinate system; calculating longitude and latitude deviation between the current satellite and an ideal fixed point, and using a result as a filter observed quantity; using a C_W equation as a system equation and estimating the right ascension and the declination of the satellite by using a Kalman recursion method; determining the reference coordinate system of the current attitude control of the satellite by using the result; calculating the attitude deviation of the satellite by using the information of the star sensor again and using the attitude deviation as system control input; and repeating the steps to realize the autonomous continuous navigation and the autonomous attitude control of the satellite. By conducting the autonomous on-star resolution and the autonomous attitude control of the position of a spacecraft through on-star sensor observation only, the problems that a measurement and control network cannot be globally distributed and the measurement and control cost is high are solved, the autonomous running of the satellite is realized and the survivability of the satellite is improved.

The invention provides a method for constructing a manually controlled submarine algae field. The method comprises the steps of selection and treatment of seaweed substrates, culture of seedlings of seaweeds, sowing and the like, wherein the seaweed substrates are breeding screens formed by weaving reddish brown ropes; the step of culture of seedlings of seaweeds comprises the substeps of collection of seedlings of seaweeds and management of culture of seedlings; after the water density of the collected spores during release in the substep of collection of seedlings of seaweeds reaches 10-15 zoospores in the field of 100-times microscope, the seaweed substrates are put in the seawater to adhere; and the adhesion density is 20-30 embryo spores in the field of 100-times microscope. The method has the following advantages and beneficial effects: the variety, density, place and sowing time of the submarine algae field achieve manual control; the fixed substances of the algae, such as C, N, P and the like, are taken from the sea to the land by harvesting the seaweed, so the effect on solving the ecological problems is longer; the cost is far lower than that of the artificial reefs; thenatural submarine geomorphology is not damaged; and the submarine algae field can be formed in a shorter time, thus rapidly increasing the resource quantity.

The invention relates to a heating control and / or regulation device having a plurality of power outputs which can be electrically connected to each heating element, in particular to each of a radiant heater; the power of a power supply system for the heating elements can be electrically connected Input terminal; a power distribution device electrically connected on the input side to the power input terminal and on the output side to the power output terminal through each branch to supply it with the current of the power supply system; either in each of the branches or in the power A switching element between the output and the heating element; a control and / or regulating unit configured to control and / or regulate the switching state of the switching element according to a desired value; an interface for receiving the desired value. According to the invention there is also at least one additional interface for a temperature measuring device for the actual temperature value and the control and / or regulating unit is configured to acquire the actual temperature value from the temperature measuring device and additionally control and / or regulate the switching element as a function of the actual temperature value switch status.