7 results about "Time base generator" patented technology

The invention discloses an unmanned aerial vehicle full-time-domain preset time control method based on a periodic TBG function. According to the method, full-time-domain preset time convergence is realized by introducing a periodic time base generator function, so that the unmanned aerial vehicle can complete convergence within preset time after state deviation occurs at any operation moment, and the problem of single-time effectiveness existing in a traditional method is solved. According to the method, the unmanned aerial vehicle can recover to the expected state within the preset time interval after being disturbed or executing transient maneuver at any operation moment, so that the unmanned aerial vehicle has consistent and predictable time domain performance in the full operation period, and the reliability is improved.

The invention discloses a partial discharge online monitoring nanosecond time base synchronization method and system. The method comprises the following steps: transmitting a clock pulse signal with a reference moment T to a plurality of online monitoring units through optical fibers by a time base generator; recording a local moment when each on-line monitoring unit receives the clock pulse signal; calculating a delay error of each online monitoring unit based on the local moment of each online monitoring unit and the reference moment T; and error correction is carried out on each online monitoring unit through the delay error of each online monitoring unit, so that the recording time of each online monitoring unit is unified with the reference time T. According to the invention, high-voltage power equipment partial discharge on-line monitoring is realized, 1ns-level time base synchronization of any monitoring point can be realized, and partial discharge on-line monitoring positioning errors are greatly reduced.

The present invention discloses a multi-agent set-time consensus control method based on a time-base generator. By only using the output information of adjacent agents and itself, through designing a dynamic observer containing a time reference generator and combining state transformation techniques, a collaborative framework of a distributed output feedback controller and a leader controller is constructed, realizing the set-time tracking consensus of a multi-agent system, significantly saving communication bandwidth while reducing the amount of information transmission; the constructed set-time control strategy based on TBG effectively avoids saturation and saves energy by reducing the number of initial control inputs; the unsigned function TBG control method is innovatively proposed, ensuring the dynamic performance of the system while eliminating high-frequency oscillations; this strategy has a fixed-time convergence characteristic, which can ensure that all followers accurately track the leader state within a preset time, and the upper bound of its convergence time is strictly decoupled from the initial state of the system, significantly optimizing the balance problem of dynamic quality and convergence speed.

The application discloses a circuit breaker and automatic transfer switch integrated power supply continuity guarantee system and a method thereof. The system comprises a controlled pulse modulator circuit, which changes the output pulse sequence frequency of a driving switching actuator in response to a voltage regulation signal; a period extender circuit, which performs integer multiple expansion on the pulse sequence; a phase deviation discriminator circuit, which detects the time deviation between the expanded pulse sequence and a power supply reference synchronization signal, generates a compensated deviation voltage through a loop dynamic compensation filter; a tunable time base generator circuit, which generates a time base reference pulse based on a series magnetostrictive delay line element and a piezoelectric adjustable capacitor, and is controlled by the compensated deviation voltage; and a transient time error sampler circuit, which determines the time error signal between the output pulse sequence and the time base reference pulse through a charge holding integral sampling mode, and forms the voltage regulation signal through negative feedback closed loop.

The present application belongs to the technical field of flexible joint robot control, and relates to a preset time sliding mode tracking control method for a flexible joint robot under mixed constraints, comprising: constructing a high-order full-drive model containing disturbances and uncertainties; converting into an equivalent integral chain form by using a full-drive system method; constructing a reference trajectory based on a tensor-time base generator; designing an adaptive neural network sliding mode control law to suppress disturbance oscillation through an adaptive gain; verifying the trajectory feasible region by using interpolation planning to ensure that the state and input satisfy the mixed constraints within the preset time; and achieving preset time convergence, strong robustness, and good constraint adaptability, which is suitable for high-precision trajectory tracking control of a multi-joint flexible joint robot.

This invention discloses a cooperative control method for heterogeneous battery energy storage systems based on a distributed preset time observer, comprising the following steps: 1) establishing a heterogeneous battery energy storage system model; 2) establishing a preset time observer based on a time base generator and a heterogeneous battery energy storage system cooperative controller; 3) using the preset time observer to estimate the average battery cell state and average expected power, and transmitting this estimate to the heterogeneous battery energy storage system cooperative controller; 4) the heterogeneous battery energy storage system cooperative controller processes the average battery cell state and average expected power to obtain the microgrid expected power that meets the SoC equalization requirements of the battery cells. Under the premise that only some battery cells can receive the expected power, this invention achieves SoC equalization and power point tracking in heterogeneous battery energy storage systems under detailed balanced directed and undirected graph topologies, reducing communication costs and avoiding single points of failure.