5 results about "Conservation energy" patented technology

The invention provides a wind and light storage micro-grid dispatching method based on an ant colony algorithm, and relates to the technical field of micro-grid dispatching, and the method comprises the following steps: S1, building a wind and light storage micro-grid system, and building a model of each device in a micro-grid; s2, establishing a comprehensive cost model, and forming a target function considering both the economic cost and the environmental cost of the system; s3, various constraint conditions of the system are established; s4, establishing a mathematical model of microgrid optimization scheduling based on S1-S3, and obtaining various basic parameters; s5, initializing related parameters and a pheromone matrix of the ant colony algorithm; according to the method, the comprehensive energy system micro-grid model is constructed, the economic cost and the environmental cost are taken as indexes, the output condition of each device in the system is reasonably configured, so that the cost is reasonably dispatched and reduced, the micro-grid is taken as a small system capable of realizing power generation and distribution, the utilization rate of clean energy can be increased, and the energy utilization rate is increased. The method plays an important role in energy conservation and environmental protection.

The invention provides a multifunctional cycle power generation system and method by a gravity lever. The system comprises a supporting rack and a balance weight arranged on the supporting rack and slidably matched with the supporting rack, wherein engines are arranged on one side or two sides of the balance weight; the input shaft of each engine is connected to a transmission shaft; two or more single-directional clutches are fixedly connected to the middle of the transmission shaft; the locking directions of the single-directional clutches are same, gears are fixed to the peripheries of thesingle-directional clutches, and a rack matched with each gear to drive the transmission shaft to rotate is arranged next to each single-directional clutch; at least one pair of racks is arranged on the upper part and the lower part, separately, the racks and the balance weight which reciprocates are in driving movement and the balance weight is arranged on the supporting rack to swing through a lifting mechanism in a reciprocating manner. As the balance weight which swings in the reciprocating manner pulls the racks to drive the transmission shaft to rotate in the single direction, multiple engines can be driven synchronously to generate electricity synchronously, and the power needed by a supporting rack lifting device is alleviated greatly by means of a swing mode like to a lever, so that the energy sources are saved and the power generation efficiency is improved greatly.

An example operation includes one or more of determining a location in an area that may lose electricity during an event related to a grid, conserving energy through a muting of energy consumption at the location, storing the conserved energy in an energy storage device at the location, and using the conserved energy at the location when the event occurs.

A posture control method is a posture control method of a non-linear inverted pendulum model, of which a height of a center of gravity is variable, and a trajectory of the center of gravity is an energy conserving system, using a control device, the posture control method including: obtaining a conservation energy function on the basis of a measured value of the center of gravity; converting the conservation energy function into a curve function; and calculating a set of eigenvectors through approximation as a convergent component and a divergent component without iterative calculation of a controllable area in a phase plot of the converted curve function and feeding back the convergent component and the divergent component that have been calculated.

Method for determining a critical time for energy saving for the standstill of the spindle of an NC machine tool and for energy saving, characterized in that it comprises the following steps: Step 1, the motion process of the NC machine tool spindle system is divided into two parts, namely a stationary process and a transient process, whereby the total energy consumption E of the motion process of the NC machine tool spindle system is calculated as: E=E S +E T where E denotes the total energy consumption of the motion process of the NC machine tool spindle system; E S the energy consumption of the steady-state process at spindle speed n; E T the energy consumption of the transient process of spindle acceleration from the initial speed n0 to the target speed n1; Step 2, the energy consumption of the NC machine tool spindle system for the stationary process comprises two components, namely the energy consumption for spindle rotation P SR (n) and the energy consumption for the basic machine tool module P B , which are calculated as follows: ES = PS t = [ P SR ( n ) + PB ] t E S =P S t=[P SR (n)+P B ]t where P S The steady-state process power at spindle speed n is denoted; P SR (n) the spindle rotational power at spindle speed n; P B the performance of the basic module of the machine tool; t the steady-state process duration; Step 3, the energy consumption of the transient process of the NC machine tool spindle system is calculated as follows: ET = ∫ 0 t T 1 PT 1 dt + PB ( t T 1 + t T 2 ) + 1 2 [ P SR ( n 0 + 30 α t T 1 π ) + T s ( π n 0 30 + α t T 1 ) + P SR ( n 1 ) ] t T 2 where t T1 denotes the time of the spindle rotation acceleration process, s; P T1 The power of the spindle rotational acceleration, W; P B the power of the NC machine base module, W; t T2 the time of the spindle turning transition process, s; P SR ( n 0 + 30 α t T 1 π ) the power of the spindle rotation at the spindle speed n 0 + 30 α t T 1 π , W; n0 the initial spindle speed, rpm; α the angular acceleration of the spindle rotational acceleration process, rad / s 2 ; T S the acceleration torque of the spindle rotational acceleration, N·m, n1 the target speed of the spindle rotational acceleration, r / min; Step 4, NC machine tool spindle to standstill for energy saving meets the following conditions: (1) The time between machining activities is greater than the critical time for spindle standstill for energy savings; (2) The energy consumption during the process of restarting and accelerating to the target speed n1 after the spindle has stopped is less than the energy consumption of the spindle which maintained the original speed n0 rotation, and the original speed n0 is equal to the target speed n1; where the equation is given as follows: { t I > t min t I ( P SR ( n 1 ) + PB ) > ( t I − t T ) PB + ET where t I denotes the time between two machining operations, s; t min the critical point for spindle standstill to save energy, s; P SR (n1) the spindle rotational power at spindle speed n1, W; n1 the target speed of the spindle rotational acceleration, rpm; P B the power output of the machine base module, W; t T the transient process time of the spindle rotational acceleration, which is the sum of the process time for the spindle rotational acceleration tT1 and the process time for the spindle rotation transition t T2 results in, s; E T the transient process energy consumption of the spindle system, J; Step 5, the critical point in time for spindle standstill to save energy in the NC machine tool system, meets the following conditions: (1) The critical time for stopping the spindle to save energy is greater than or equal to the time for the transient process acceleration of the spindle rotation; (2) Within the critical time t min The energy consumption during the process of the spindle being stationary for a period of time and restarting and accelerating to the target speed n1 is equal to the energy consumption during which the spindle maintained the original rotational speed n0, and the original rotational speed n0 is equal to the target rotational speed n1; where the equation is given as follows: { t min ≥ t T t min ( P SR ( n 1 ) + PB ) = ( t min − t T ) PB + ET where t min denotes the critical point in time when the spindle stops to save energy, s; t T the time of the transient process for accelerating the spindle rotation, which is the sum of the time t T1 to accelerate the spindle rotation process and the time t T2 for the transition of the spindle rotation is, s; P SR (n1) the power of the spindle rotation at spindle speed n1, W; P B the power of the basic module of the machine tool, W; E T the energy consumption of the transient process of the spindle system, J; Step 6, the critical point in time for energy saving through standstill of the spindle of the NC machine tool, can be calculated as follows: t min = 1 2 t TI 2 ( A SR 30 α π + T s α ) + t T 1 B SR + 1 2 t T 2 [ A SR ( 30 α t T 1 π + n 1 ) + T s α t T 1 + 2 B SR ] A SR n 1 + B SR where t T1 denotes the time of the spindle rotation acceleration process, s; A SR the coefficient of the primary term of the formula for spindle rotation power; α the angular acceleration of the spindle rotation acceleration process, rad / s 2 ; T S the acceleration torque of the spindle rotation acceleration, N·m; B SR the constant term of the formula for spindle rotation power; t T2 the time of the spindle rotation transition process, s; n1 the target speed of the spindle rotation acceleration, r / min; Step 7, the energy saving achieved through the energy-saving method of the NC machine tool's spindle system by means of standstill of rotation, is calculated as follows: E SA = t I ( P SR ( n 1 ) + PB ) − ( t I − t T ) PB − ET where E SA The energy saved through the energy-saving procedure involving standstill is denoted as W; t Ithe time between two machining operations, s; P SR (n1) the spindle rotational power at spindle speed n1, W; n1 the target speed for the spindle rotational acceleration, rpm; P B the power of the basic module of the machine tool, W; t T the time for the transient acceleration of the spindle rotation, which is the sum of the time for the acceleration of the spindle rotation t T1 and the time for the transition of the spindle rotation t T2 composes, s; E T the energy consumption of the transient spindle system, J; which is further represented as follows: E SA = ( t I − t min ) P SR ( n 1 ) where t I denotes the time between two machining operations, s; t min the critical point for spindle standstill to save energy, s; P SR(n1) the spindle rotational power at spindle speed n1, W; n1 the target speed for the spindle rotational acceleration, r / min.