19 results about "Stepping switch" patented technology

The present invention suppresses a peak in power consumption while reducing a processing load.　A numerical control device (2) comprises: a determination unit (212) that analyzes a machining program and determines a step switching command in the machining program; an information acquisition unit (213) that acquires time information about a first time zone of a step among a plurality of steps, and condition information indicating a second machining condition different from a first machining condition specified in the machining program; a condition setting unit (214) that sets the machining condition in the first time zone to be the second machining condition on the basis of the step switching command, the time information, and the condition information; and a control unit (215) that controls a drive shaft in the first time zone on the basis of the second machining condition set by the condition setting unit.

System (200) for operating a load tap changer, wherein the system comprises: a plurality of strands (208, 210), at least one of which is caused to switch from a first tap (202) to a second tap (204) of the load tap changer upon receipt of a tap change signal, each strand having at least one mechanical switch (214, 216) and wherein an electrical connection is established between the first tap (202) or the second tap (204) and a supply terminal (212) of the load tap changer when at least one mechanical switch (214, 216) of at least one of the plurality of strands is opened; and a plurality of semiconductor switches (220, 222, 224, 226), wherein each semiconductor switch (220, 222, 224, 226) is arranged in parallel to the mechanical switches (214, 216) and, in the activated state, provides an electrical connection between the first tap (202) or the second tap (204) and a supply terminal (212) of the load tap changer; and a processing unit (228) configured to selectively activate and deactivate the mechanical switches (214, 216) and the semiconductor switches (220, 222, 224, 226) such that the electrical connection between the at least one tap (202, 204) and the supply terminal (212) is maintained during the transition of the at least one strand (208, 210) from the first tap (202) to the second tap (204) without causing a short circuit between the two taps (202, 204). the processing unit (228) is also configured to: Generating the step switching signal to move at least one strand (208, 210) from the first tap (202) to the second tap (204) when a condition for step switching is met; Generating activation signals for the semiconductor switches (220, 222, 224, 226) when the stage switching signal is generated; and Generating a plurality of deactivation signals for the mechanical switches (214, 216) from at least one strand (208, 210) connected to the first tap (202) when a stage switching condition is met.

Resistor arrangement (10) for a tap changer (1) for uninterrupted switching between winding taps of a transformer, the resistor arrangement (10) comprising at least one resistive element (20) which is held by at least two resistive holders (30), characterized by: - a base plate (11) with at least one opening (12) on which the at least two resistance holders (30) for receiving the resistance element (20) are arranged; - a guide (31) formed in each resistance holder (30), wherein each guide (31) positions a first end (201) or a second end (202) of the resistance element (20) with respect to a longitudinal direction (L) between the two resistance holders (30), and wherein the resistance element (20) can be inserted through the opening (12) into each of the guides (31); and - two contact points (24) of the resistance element (20) which, when a resistance element (20) is inserted into the resistance holder (30), can be electrically contacted by a respective contact (40) of the tap changer (1).

A circuit interrupter includes an inductor module connected in series with a hybrid interrupter switch between a power source and a load. The inductor module includes a coupled inductor including a primary winding connected in series between the power source and the interrupter module, and a secondary winding connected to the power source on its line side. The load side of the secondary winding is connected to a first stage switching device that forms a switch between the secondary winding and the interrupter module. In normal current conditions, the first stage switching device and the hybrid interrupter switch remain closed. During a fault, the first stage switching device is first opened, which significantly increases the magnetic flux in the inductor module and the impedance of the circuit, and thus reduces the current through the interrupter module. The hybrid switch is then turned on to complete the interruption.

Remote-controlled lighting system (100), characterized in that it comprises a remote control (11), at least one lighting device (12) and a control unit (13) provided for each lighting device (12); wherein the control unit (13) comprises a main control unit (131), a DIP switch assembly (132) connected to the main control unit (131) and a wireless communication unit (133), wherein the DIP switch assembly (132) comprises several tap switches and is configured to establish a unique identification identifier for the corresponding lighting device (12);wherein the remote control (11) is wirelessly connected to the wireless communication unit (133), wherein the remote control (11) is provided with setting buttons (111) and several step selection buttons (112), the number of which corresponds to the number of step switches, wherein each step selection button (112) is configured to send a target step remote control command to the main control unit (131) which contains a corresponding button identifier, wherein the main control unit (131), if the button identifier in the target step remote control command received by the main control unit (131) matches the current identity identifier of the corresponding lighting device (12), responds to a setting command of the setting buttons (111) in order to control the corresponding lighting device (12) to perform a corresponding lighting operation, and otherwise does not respond to the setting command of the setting buttons (111).

The present invention relates to the technical field of power distribution system safety control, and provides a step-by-step operation type switch interlocking device, and also provides an equipment cabinet, wherein the step-by-step operation type switch interlocking device includes: a cabinet, on which a system panel is provided, and the system panel is provided with a circuit breaker operation button and an isolation operation hole; a circuit breaker, an isolation switch and a grounding switch, and the circuit breaker operation button is used to open / close the circuit breaker; a first interlocking component, including an isolation operation shaft and a grounding operation shaft; a second interlocking component, including an interlocking drive plate and an isolation operation baffle. Compared with the existing technology, the present invention adopts a self-contained mechanical interlocking structure that operates in sequence and a maintenance-free cabinet door interlocking mechanism, so that the power supply and power off operations can only be completed by performing the steps allowed by the "safety regulations" one by one, eliminating manual dependence, reducing the occupied space, and realizing a miniaturized and compact structural design.

The invention relates to a high-voltage high-power power electronic device and a control method thereof. The high-voltage high-power power electronic device comprises a controller and a bridge arm unit connected with a power grid alternating current bus, the bridge arm unit comprises at least one group of bridge arms; each group of bridge arms comprises an alternating current reactor, an upper bridge arm and a lower bridge arm; each of the upper bridge arm and the lower bridge arm comprises a plurality of sub-modules; the upper bridge arm is connected with the lower bridge arm; one end of the AC reactor is connected with a power grid AC bus, and the other end is connected with a connection point between the upper bridge arm and the lower bridge arm; the controller is used for controlling each sub-module by adopting a step switching modulation strategy so as to control the potential to ground of a target end point of the alternating current reactor; wherein the target end point is one end of the alternating current reactor connected with the connection point between the upper bridge arm and the lower bridge arm. According to the invention, the problem of unbalanced series voltage is solved, the capacitance value of a sub-module capacitor is greatly reduced by innovating a modulation strategy, the volume and the weight of the device are reduced, and the voltage stress of the alternating current side is greatly reduced by adopting a step switching modulation mode.

The application discloses a kind of network construction and follow network control's no fluctuation switching method in full-power wind power converter, when converter is in follow network control, converter network side control bus and reactive power, machine side carries out power control, when converter is in network construction control, network side uses virtual synchronous machine control, machine side controls bus.When in network construction operation, the running angle of follow network and machine network side outer ring integrator real-time value are calculated, when in follow network operation, the running angle of network construction and machine network side outer ring integrator real-time value are calculated, when switching, angle switching, the mode of step switching control ring can reduce fluctuation in switching process, using reasonable switching timing, finally obtain optimal online follow network network construction switching control algorithm.The application can flexibly switch control mode according to power grid demand, improve system stability and economy, with higher engineering practical value.

The invention relates to the technical field of power systems and automation thereof, in particular to a flexible direct current averaging modeling method considering negative sequence control and an amplitude limiting link, which comprises the following steps of: S1, decomposing a periodic time-varying state quantity of an MMC into a differential mode component and a common mode component through multi-frequency coordinate transformation, and establishing a steady double-loop state-space equation; s2, for the negative sequence control system containing the DDSRF-PLL, realizing voltage / current positive and negative sequence separation through a dynamic equation; and S3, carrying out continuity on the step switch characteristics of the amplitude limiting link through a continuity approximation tool. By constructing an averaging state space model containing negative sequence control and amplitude limiting links, the problems that MMC-HVDC modeling calculation is complex and dynamic precision is insufficient are solved.

To provide a device (1) for connection to a high-voltage network carrying an alternating voltage, the high-voltage network having a plurality of phases, the device comprising: an active part (7) having at least one phase connection (2) for connection to a phase of the high-voltage network; at least one step winding (8, 9, 25, 26, 27) connected downstream of one of the phase connections and having a plurality of taps; and a step switch having a selector (10, 11, 28, 29, 30) and a load changeover switch (12, 13, 31, 32) for each step winding. 2, 33), the selector is used to switch from the current tap of the graded winding to the desired tap when there is no current, the load switching switch is connected in series downstream of the selector, and is used to switch the current from the current tap to the desired tap, thereby avoiding a large short-circuit current in the graded winding or in the graded switch, and it is proposed that an impedance unit (15) is arranged between each selector (10, 11, 28, 29, 30) and each load switching switch (12, 13, 31, 32, 33), and the impedance of the impedance unit (15) can be switched between low impedance and high impedance.

A resistor device (10) for a graded switch (1) has at least one resistive element (20) held by at least two resistor holders (30). The resistor device (10) includes: a substrate (11) having at least one opening (12) on which the at least two resistor holders (30) for receiving the resistive element (20) are disposed; and a guide (31) constructed in each resistor holder (30), each guide (31) positioning a first end (201) and a second end (202) of the resistive element (20) about a longitudinal direction (L) between the two resistor holders (30). Here, each contact (24) of the resistive element (20) is electrically connected via a contact (40) of the graded switch (1) when the resistive element (20) is inserted into the resistor holder (30).

The invention relates to a step-type switched capacitor conversion circuit and method. The conversion circuit comprises a step determination module, a switch control module, an output capacitor connected between a current output end and the ground, and at least one flying capacitor. One end of the flying capacitor is connected between the current input end and the current output end, and the other end of the flying capacitor is grounded through a switch and connected between the current output end and the output capacitor through another switch; the step determination module is used for determining the number of steps according to the proportion of the input voltage to the output voltage, and the number of the steps is a positive integer; and the switch control module controls the on-off of each switch according to the step number, and further controls the charging and discharging process of the corresponding flying capacitor, so that the voltage of the last flying capacitor is equal to the output voltage. According to the invention, through a multi-step switched capacitor control mode, the step voltage change of the flying capacitor is utilized, and the efficient conversion of the fixed integer proportion and / or the non-integer proportion of the input and output voltage is realized.

The application provides an asymmetric multi-step switching push non-destructive peeling method for a flexible ultrathin chip, and relates to the technical field of flexible electronics. The method comprises the following steps: obtaining the length of a substrate and the length of a chip, and determining the switching step number of a push pin; determining the relationship between a peeling health index and a crack propagation length according to the elastic modulus of the chip and the thickness of the chip, and determining the switching position corresponding to each switching step number of the push pin; determining the displacement of the push pin according to the switching position; controlling the push pin to push the chip according to the displacement of the push pin until the peeling of the chip is completed after the push is performed at all the switching positions. According to the application, the push position can be selected in a systematic and quantitative manner, the performance is close to the theoretical optimum, the operation steps are clear, the requirements for the equipment are reasonable, the integration and automation can be realized on the existing wafer-level packaging equipment, the stress state of the chip in the peeling process can be effectively managed, and the non-destructive and high-yield peeling of the ultrathin chip can be realized.

The invention relates to a device for releasing brakes of a rail vehicle, wherein a first release device (1) is provided for releasing a service brake and a second release device (2) is provided for releasing a parking brake, characterized in that the first release device (1, 1.1) can be controlled electrically with two poles via a first release relay (3) and the second release device (2, 2.1) can be controlled electrically with two poles, in parallel with a parking brake venting valve (10), by means of a second release relay (4), the first release relay (3) being connected to a first supply voltage (6) by means of a three-step switch (5) in the second and third steps of the three-step switch (5) and the second release relay (4) being connected to the first supply voltage (6) only in the third step of the three-step switch (5), and electrical return lines (8) of the first release relay (3) and of the second release relay (4) being connected to a second supply voltage (7) in the second and third steps of the three-step switch (5).

Switching converter driver operable in: a first mode in which a first and a second output step switch are controlled to generate a binary output signal, wherein an impedance of the first output step switch is substantially the same as the impedance of the second output step switch; and a second mode in which the first and second output step switches and a third switch are controlled to generate a three-step output signal, wherein an impedance of the third switch is substantially greater than an impedance of the first output step switch and the second output step switch.

This invention proposes a method, system, electronic device, and storage medium for switching power supply steps on a production line. The method includes: receiving a process flow data packet containing multiple sets of step parameters for each step, including step status, current setpoint, and step switching parameters; during the execution of the current step, real-time acquisition of the current step's operating parameters, and determining whether to trigger a step switch based on the operating parameters and the corresponding step switching parameters; acquiring the step parameter set for the next step, and comparing the step status of the next step with that of the current step; if the step statuses are the same, maintaining an enable signal in a valid state when triggering a step switch, and directly jumping the power supply's output current from the current setpoint of the current step to the current setpoint of the next step before executing the next step. This invention can significantly shorten step transition time, prevent voltage rebound from affecting DCIR values, and improve test accuracy.