30results about How to "With cross-platform emulation testing" patented technology

The invention provides an overcurrent protection simulation device, belongs to the field of electrical measurement and particularly relates to an overcurrent protection simulation test device used for high-voltage direct current transmission equipment in direct current control protection device simulation researches. A D current signal end of a current converter and a Y current signal end of the current converter are connected with a second extreme value selector through a first extreme value selector. A neutral current signal end is connected with the second extreme value selector. The output end of the second extreme value selector is connected with a maximum current signal end. The maximum current signal end is connected with an input end of a second joint gate sequentially through a fourth timer and a sixth timer. The maximum current signal end is connected with the other input end of the second joint gate through a fifth timer. The output end of the second joint gate is connected with a first overcurrent protection signal end through a seventh timer. The device can truly simulate and reflect operation states of a direct current control protection device and provides corresponding simulation results for researches or design of the direct current control protection device.

The invention provides an extinction angle start control simulation device, belongs to the field of electrical measurement, and particularly relates to the extinction angle start control simulation device which is used for simulation study of a direct current control and protection system of high-voltage direct current power transmission equipment. The extinction angle start control simulation device comprises a first speed limiting device, a first arithmetic operation element, a second arithmetic operation element, a first Schmitt trigger, a first timer, a second timer, a first phase inverter, a second phase inverter, a conjunction gate, a joint gate and a SR trigger. The first speed limiting device is connected to the first Schmitt trigger through the first arithmetic operation element and the second arithmetic operation element. The first Schmitt trigger is connected to the conjunction gate through the first timer, and the conjunction gate is connected to the S input end of the SR trigger. The first Schmitt trigger is connected to the joint gate through the second phase inverter and the second timer, and the joint gate is connected to the R input end of the SR trigger. According to the extinction angle starting control simulation device, the operating state of a direct current control protection device can be truly simulated and reflected, and corresponding simulation results can be provided for the study or the design of the direct current control protection device.

The invention belongs to the field of electrical measurement, and relates to a simulator for a minimum trigger angle limiter of a rectifier. The simulator for the minimum trigger angle limiter of the rectifier is used for simulation researches on a direct-current control protection system of high-voltage direct-current power transmission equipment. A first inertial element and a first arithmetic operation element are connected to a Schmitt trigger, an output end of the Schmitt trigger is connected to a first trigger signal forming module, a second inertial element and a second arithmetic operation element are connected to a comparator, an output end of the comparator is connected to a second trigger signal forming module and connected to an AND gate through a second OR gate, the trigger signal forming module comprise a first inverter, a first timer, a second timer, a third timer, a first OR gate and an SR (synchronous rectifier) trigger, and the first inverter is connected to the SR trigger through the second timer. The simulator is capable of truly simulating and reflecting running statues of a direct-current control protection device, and corresponding simulation results are provided for researches and design of the direct-current control protection device.

The invention discloses a no-load direct current voltage control simulation device, belongs to the field of electrical measurement, and particularly relates to a testing device for direct current control and protection system simulation study of high-voltage direct current power transmission equipment. According to the no-load direct current voltage control simulation device, direct current voltage reference signals are connected to a mode selective switch through a first arithmetic operation element and a second arithmetic operation element; the direct current voltage reference signals are connected to a second joint gate through a third arithmetic operation element and a first Schmitt trigger; the direct current voltage reference signals are connected to a speed limiting device through a second proportional element and a fourth arithmetic operation element; a fifth arithmetic operation element is connected to the fourth arithmetic operation element; an output end of the speed limiting device is connected to the third arithmetic operation element and the fourth arithmetic operation element through a sixth arithmetic operation element and is connected to a first AND gate through a second Schmitt trigger; and an output end of the first AND gate forms a no-load direct current voltage rise signal end. The no-load direct current voltage control simulation device can truly simulate and reflect the operation state of a direct current control and protection device, and provides a corresponding simulation result for research or design of the direct current control and protection device.

The invention provides a filter switching control simulation device, belongs to the field of electrical measuring, and particularly relates to a testing device for simulation research of direct current control protective systems of direct current high-voltage transmission equipment. A filter switching amount signal is connected to a first joint gate through a first comparator and a second comparator, the output end of the first joint gate is connected to a first timer, the output end of the first timer is connected to a first conjunction gate through a first phase inverter and connected to a second conjunction gate through a third phase inverter, an unlocking signal end is connected to the first conjunction gate and the second conjunction gate through a first edge detecting element and a second phase inverter, the output end of the first conjunction gate and the output end of the second conjunction gate are connected to a plus count input end of a bidirectional counter and a subtraction count input end of the bidirectional counter respectively, and a signal output end of the simulation device is formed by the output end of the bidirectional counter. The filter switching control simulation device can truly simulate and reflect the operating states of direct current control protective devices, and provides corresponding simulation results for the research or the design of the direct current control protective devices.

The invention discloses a trigger pulse closed-loop circuit controlling simulation device, belongs to the field of electrical measuring, and relates to the trigger pulse closed-loop circuit controlling simulation device used for simulation researching of a direct current controlling protecting system of high-voltage direct-current transmission equipment. A trigger angle command signal end passes through a delay element, a first speed limiting device and a trigonometric function element sequentially, and is connected to a first extreme value selector. The first extreme value selector passes through a third arithmetic operation element, a second speed limiting device and a fourth arithmetic operation element sequentially, and is connected to a fifth arithmetic operation element. The first extreme value selector then passes through a third speed limiting device, a sixth arithmetic operation element and a fourth speed limiting device sequentially, and is connected to the trigger angle command signal end, and closed-loop current control connection is formed. An upper limit and lower limit selection module is connected to an upper limit and lower limit selection end of the fourth speed limiting device. The trigger pulse closed-loop circuit controlling simulation device can simulate and reflect an operation state of a direct current controlling protecting device truly, and provides a corresponding simulation result for researching or design of the direct current controlling protecting device.

The invention discloses a current margin compensation simulation device, belongs to the field of electronic measuring, and relates to a current margin compensation simulation device used for simulation research of a direct current controlling protecting system of high-voltage direct current transmission equipment. The current margin compensation simulation device comprises a subtractor, a first mode selection switch, a speed limiting device, an integrator, a summator, a second mode selection switch and an inertia element. An electrode power controlling device is connected to the subtractor and the summator, and the subtractor is connected to a neutral current signal end of a thyristor converter. The subtractor is connected to the speed limiting device through the first mode selection switch. The speed limiting device is connected to the summator through the integrator. An output end of the summator is used as an output end of the electrode power controlling device, and the output end of the summator is connected to a converter trigger angle controlling module of the direct current controlling protecting system. The current margin compensation simulation device can simulate and reflect an operation state of the direct current controlling protecting device truly, and provide a corresponding simulation result for the researching and design of the direct current controlling protecting device.

The invention provides a commutation failure protection simulation device, belongs to the field of electrical measurement and particularly relates to a commutation failure protection simulation test device used for high-voltage direct current transmission equipment in a direct current control protection system simulation research. A D bridge current signal end is connected with the input end of a first commutation discrimination assembly, a Y bridge current signal end is connected with the input end of a second commutation discrimination assembly, the output end of the first commutation discrimination assembly and the output end of the second commutation discrimination assembly are connected with a third arithmetic operation element, the output end of the third arithmetic operation element is respectively connected with a second comparator and a third comparator, the second comparator is connected with a first commutation failure protection signal end through a second timer, and the third comparator is connected with a second commutation failure protection signal end through a third timer and a fourth timer. The device can truly simulate and reflect operation states of a direct current control protection device, and provides corresponding simulation results for researches or design of the direct current control protection device.

The invention provides an overvoltage control simulation device, belongs to the field of electrical measurement and particularly relates to an overvoltage control simulation test device used for high-voltage direct current transmission equipment in direct current control protection system simulation researches. A direct current voltage signal is connected with an extreme value selector through a first absolute value arithmetic unit, a second arithmetic operation element and a second absolute value arithmetic unit. The output end of the extreme value selector is connected with a control signal generation module, a first mode selective switch and a second mode selective switch, and the first mode selective switch is connected with an upper limit signal end of an integrator. The extreme value selector is connected with an inertial element and the integrator through a third arithmetic operation element, is connected with a speed limiting device through a fourth arithmetic operation element, and is connected with an overvoltage limit signal output end through the second mode selective switch. The device can truly simulate and reflect operation states of a direct current control protection device and provides corresponding simulation results for researches or design of the direct current control protection device.

The invention provides a voltage and angle reference value computing simulator, belongs to the field of electrical measurements, and particularly relates to a voltage and angle reference value computing simulation testing device used in the direct current control and protection system simulation study of direct current extra-high-voltage transmission equipment. The voltage and angle reference value computing simulator comprises a plurality of mode selective switches, extreme value selectors, speed limiting devices, subtractors, a proportional component and a summing unit. A set voltage input end is connected to a first speed limiting device and a third subtractor through a first mode selective switch, a first extreme value selector and a second mode selective switch in sequence, an output end of the third subtractor is connected to an input end of a second speed limiting device, an output end of the second speed limiting device is connected to another input end of the summing unit, and an output end of the summing unit is connected to a current converter firing angle control device. By means of the voltage and angle reference value computing simulator, the operating state of a direct current control and protection device can be simulated and reflected truly, and corresponding simulation results are supplied to the study or design of the direct current control and protection device.

The invention belongs to the field of electrical measurement, and particularly relates to a direct current under voltage protection simulating testing device which is used for simulation research of a direct current control protection system of a high voltage direct current transmission device. A direct current voltage signal end is connected with a first AND gate through an arithmetic operation element and a first Schmitt trigger sequentially; the other input end of the first AND gate is connected with a rectifying state signal end; an output end of the first AND gate is connected with a second AND gate through a first timer; the other input end of the second AND gate is connected with an original electrode operation state signal end; an output end of the second AND gate is connected with a first OR gate through a second timer; an output end of the first OR gate is connected with a direct current under voltage protection signal end of the direct current under voltage protection simulating device through a third timer. The direct current under voltage protection simulating device can truly simulate and reflect an operation state of a direct current control protection device and offer corresponding simulating results for research or design of the direct current control protection device.

The invention provides an overvoltage control simulation device, belongs to the field of electrical measurement and particularly relates to an overvoltage control simulation test device used for high-voltage direct current transmission equipment in direct current control protection system simulation researches. A direct current voltage signal is connected with an extreme value selector through a first absolute value arithmetic unit, a second arithmetic operation element and a second absolute value arithmetic unit. The output end of the extreme value selector is connected with a control signal generation module, a first mode selective switch and a second mode selective switch, and the first mode selective switch is connected with an upper limit signal end of an integrator. The extreme value selector is connected with an inertial element and the integrator through a third arithmetic operation element, is connected with a speed limiting device through a fourth arithmetic operation element, and is connected with an overvoltage limit signal output end through the second mode selective switch. The device can truly simulate and reflect operation states of a direct current control protection device and provides corresponding simulation results for researches or design of the direct current control protection device.

The invention discloses a low-voltage current-limiting controlling simulation device, belongs to the field of electrical measurement, and relates to a low-voltage current-limiting controlling simulation device used for simulation researching of a direct current controlling protecting system of high-voltage direct current transmission equipment. The low-voltage current-limiting controlling simulation device comprises a comparator, a first inertial element, a second inertial element, a third inertial element, a first mode selection switch, a second mode selection switch and a multi-way selection module; an output end of the first inertial element is connected to the first mode selection switch. Output ends of the second inertial element and the third inertial element are connected to the second mode selection switch; an output end of the second mode selection switch is connected to an input end of the multi-way selection module; an input end of the multi-way selection module is connected to an inverter largest trigger angle controlling device of a converter trigger angle controlling device. The low-voltage current-limiting controlling simulation device can simulate and reflect an operation state of a direct current controlling protecting device truly, and provides a corresponding simulation result for researching or design of the direct current controlling protecting device.

The invention provides a voltage and angle reference value computing simulator, belongs to the field of electrical measurements, and particularly relates to a voltage and angle reference value computing simulation testing device used in the direct current control and protection system simulation study of direct current extra-high-voltage transmission equipment. The voltage and angle reference value computing simulator comprises a plurality of mode selective switches, extreme value selectors, speed limiting devices, subtractors, a proportional component and a summing unit. A set voltage input end is connected to a first speed limiting device and a third subtractor through a first mode selective switch, a first extreme value selector and a second mode selective switch in sequence, an output end of the third subtractor is connected to an input end of a second speed limiting device, an output end of the second speed limiting device is connected to another input end of the summing unit, and an output end of the summing unit is connected to a current converter firing angle control device. By means of the voltage and angle reference value computing simulator, the operating state of a direct current control and protection device can be simulated and reflected truly, and corresponding simulation results are supplied to the study or design of the direct current control and protection device.

The invention belongs to the field of electrical measurement and particularly relates to an ignition pulse generator simulating device for simulation study of a direct current control system of high-voltage direct-current power transmission equipment. A double-pole unlocking signal end is connected to a first arithmetical operation element and a second arithmetical operation element via a timer, a protective locking signal end is connected to a Schmitt trigger via a phase inverter, the first arithmetical operation element is connected to a first conjunction gate, an output end of the Schmitt trigger is connected to the first conjunction gate, an output end of the first conjunction gate is connected to an unlocking signal end of a first ignition trigger assembly, the second arithmetical operation element is connected to a second conjunction gate, and the output end of the Schmitt trigger is connected to an unlocking signal end of a second ignition trigger assembly via the second conjunction gate. The ignition pulse generator simulating device can truly simulate and reflect running states of a direct current control and protection device, and provides corresponding simulation results to research or design of the direct current control and protection device.

The invention provides an extinction angle start control simulation device, belongs to the field of electrical measurement, and particularly relates to the extinction angle start control simulation device which is used for simulation study of a direct current control and protection system of high-voltage direct current power transmission equipment. The extinction angle start control simulation device comprises a first speed limiting device, a first arithmetic operation element, a second arithmetic operation element, a first Schmitt trigger, a first timer, a second timer, a first phase inverter, a second phase inverter, a conjunction gate, a joint gate and a SR trigger. The first speed limiting device is connected to the first Schmitt trigger through the first arithmetic operation element and the second arithmetic operation element. The first Schmitt trigger is connected to the conjunction gate through the first timer, and the conjunction gate is connected to the S input end of the SR trigger. The first Schmitt trigger is connected to the joint gate through the second phase inverter and the second timer, and the joint gate is connected to the R input end of the SR trigger. According to the extinction angle starting control simulation device, the operating state of a direct current control protection device can be truly simulated and reflected, and corresponding simulation results can be provided for the study or the design of the direct current control protection device.

The invention provides an overload limit simulation device, belongs to the field of electrical measurement, and particularly relates to an overload limit simulation test device used for high-voltage direct current transmission equipment in direct current control protection system simulation researches. The device comprises a substractor, a first mode selection switch, a speed limiting device, an integrator, a summator, a second mode selection switch and an inertial element. A polar power control device is connected with the substractor and the summator, the substractor is connected with a neutral current signal end of a thyristor current converter, the substractor is connected with the speed limiting device through the first mode selective switch, the speed limiting device is connected with the summator through the integrator, and the output end of the summator serves as the output end of the polar power control device and is connected with a trigger angle control module of the current converter of a direct current control protection system. The device can truly simulate and reflect operation states of a direct current control protection device and provides corresponding simulation results for researches or design of the direct current control protection device.

The invention belongs to the field of electrical measurement and relates to a reactive power control simulator, in particular to a testing device for simulation study of a direct current control and protection system of a direct current high-voltage transmission device. A reactive calculated value signal end and a reactive reference value signal end are connected to a second arithmetic operation element and a third arithmetic operation element through a first arithmetic operation element and a first proportioning element. A limitation reactive value signal end is connected with the second arithmetic operation element and the third arithmetic operation element. A reactive control signal end is connected with a first AND gate and a second AND gate. The second arithmetic operation element is connected to the first AND gate through a first Schmitt trigger. The third arithmetic operation element is connected to the second AND gate through a second Schmitt trigger. The first AND gate is connected to a reactive increasing signal end of a filter through a second timer. The second AND gate is connected to a reactive decreasing signal end of the filter through a first timer. The reactive power control simulator can truly simulate and reflect the operation state of a direct current control protector. Corresponding simulating results are provided for research or design of the direct current control protector.

The invention belongs to the field of electrical measurement, and particularly relates to the pole power control simulation device. The pole power control simulation device is used for simulation study of a direct current control and protection system of high-voltage direct current transmission equipment. The pole power control simulation device comprises an electric current computing element, a double-pole power balance and control unit, a divider, a first speed limiting device, a first mode selection switch, an adding device, a second speed limiting device, an integrator, an inverter and a second mode selection switch. The divider is connected to the adding device through the first speed limiting device and the first mode selection switch. The output end of the second speed limiting device is connected to the second mode selection switch through the integrator, the second mode selection switch is connected to a current converter firing angle control module of the direct current control and protection system through the adding device. The device can truly simulate and reflect a pole power control and operation state of the direct current control and protection device, and supplies corresponding simulation results to study or design of the direct current control and protection device.

The invention belongs to the field of electrical measurement and particularly relates to an ignition pulse generator simulating device for simulation study of a direct current control system of high-voltage direct-current power transmission equipment. A double-pole unlocking signal end is connected to a first arithmetical operation element and a second arithmetical operation element via a timer, a protective locking signal end is connected to a Schmitt trigger via a phase inverter, the first arithmetical operation element is connected to a first conjunction gate, an output end of the Schmitt trigger is connected to the first conjunction gate, an output end of the first conjunction gate is connected to an unlocking signal end of a first ignition trigger assembly, the second arithmetical operation element is connected to a second conjunction gate, and the output end of the Schmitt trigger is connected to an unlocking signal end of a second ignition trigger assembly via the second conjunction gate. The ignition pulse generator simulating device can truly simulate and reflect running states of a direct current control and protection device, and provides corresponding simulation results to research or design of the direct current control and protection device.

The invention provides a tapping point rise-and-fall instruction simulation device, belongs to the field of electrical measurement, and particularly relates to a testing device used for a simulation study of a direct current control protection system of high-voltage direct current transmission equipment. A neutral current signal is connected to a first proportional component through a first arithmetic operation component, and the neutral current signal is connected to a second proportional component through a second arithmetic operation component. The first arithmetic operation component is connected to a tapping point rising signal module through a first absolute value arithmetic unit. A voltage rising signal end of a voltage control module and an angle rising signal end of an angle control module are connected to the tapping point rising signal module. The second arithmetic operation component is connected with a tapping point falling signal module through a second absolute value arithmetic unit. A voltage falling signal end of the voltage control module and an angle falling signal end of the angle control module are connected with the tapping point falling signal module. The device can truly simulate and reflect the running state of a direct current protection device, and provide corresponding simulation results for the study or design of the direct current control protection device.

The invention provides a voltage regulator simulator, belongs to the field of electrical measurements, and particularly relates to a voltage regulator simulating testing device used in the direct current control and protection system simulation study of direct current high-voltage transmission equipment. Direct current voltage signals are connected to a second arithmetic operation element through a first arithmetic operation element and an absolute value arithmetic device, the second arithmetic operation element is connected to a first mode selective switch and a first proportional component through an inertia element, the first mode selective switch is connected to an integrator and is connected to a first speed limiting device through a second proportional component, an output end of a bound regulation module is connected to a bound regulation input end of the integrator, an output end of the first speed limiting device and an output end of the integrator are connected to a second speed limiting device through a third arithmetic operation element, and a voltage regulation signal output end is formed. By means of the voltage regulator simulator, the operating state of a direct current control and protection device can be simulated and reflected truly, and corresponding simulation results are supplied to the study or design of the direct current control and protection device.

The invention discloses a no-load direct current voltage control simulation device, belongs to the field of electrical measurement, and particularly relates to a testing device for direct current control and protection system simulation study of high-voltage direct current power transmission equipment. According to the no-load direct current voltage control simulation device, direct current voltage reference signals are connected to a mode selective switch through a first arithmetic operation element and a second arithmetic operation element; the direct current voltage reference signals are connected to a second joint gate through a third arithmetic operation element and a first Schmitt trigger; the direct current voltage reference signals are connected to a speed limiting device through a second proportional element and a fourth arithmetic operation element; a fifth arithmetic operation element is connected to the fourth arithmetic operation element; an output end of the speed limiting device is connected to the third arithmetic operation element and the fourth arithmetic operation element through a sixth arithmetic operation element and is connected to a first AND gate through a second Schmitt trigger; and an output end of the first AND gate forms a no-load direct current voltage rise signal end. The no-load direct current voltage control simulation device can truly simulate and reflect the operation state of a direct current control and protection device, and provides a corresponding simulation result for research or design of the direct current control and protection device.