CN111707851A - Multi-channel alternating current signal state sequence sequential control generator - Google Patents
Multi-channel alternating current signal state sequence sequential control generator Download PDFInfo
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Abstract
A multi-channel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module; the state sequence accurate control module executes sequential control of the time sequence according to the number of the state sequences and the duration of each state sequence; the channel switching module receives a channel switching signal of the state sequence accurate control module in real time and executes sequential switching of a voltage channel and a current channel; the signal generation module receives the amplitude of the alternating current signal in real time, combines a preset phase angle and a preset frequency, synthesizes the alternating current signal and outputs the alternating current signal. The invention adopts the modularized arrangement, has high transportability and strong universality, and can greatly reduce the workload of testers, thereby improving the detection efficiency.
Description
Technical Field
The invention relates to the technical field of power system control logic simulation modeling, in particular to a multi-channel alternating current signal state sequence control generator.
Background
In the process of development, test, detection and the like of an electric power system, a real-time simulator of the electric power system is often required to be sampled to simulate working conditions. In the process of developing and debugging the power measurement and control device by adopting the real-time simulator of the power system, the synchronous sequential control of a plurality of groups of alternating voltage and current magnitude sequences is difficult to carry out. The synchronous sequential control simulation modeling of a multichannel alternating current signal state sequence becomes a difficult problem in the industry. The synchronous sequence control of a plurality of groups of alternating current quantity state sequences is realized based on the real-time simulator of the power system, and the application is complex. At present, no data is disclosed to show that the technical problem of the present invention can be effectively solved by the existing technical scheme.
Therefore, it is desirable to provide a multi-channel ac signal state sequence sequential control generator to overcome the deficiencies of the prior art.
Disclosure of Invention
The invention aims to avoid the defects of the prior art and provides a multi-channel alternating current signal state sequence control generator which can realize the accurate control of a state sequence and has the characteristics of strong universality, high transportability and high detection efficiency.
The object of the invention is achieved by the following technical measures.
The multichannel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module;
the state sequence initialization module is used for defining the number of the state sequences, the voltage and current amplitude of each state sequence and the duration of each state sequence;
the state sequence accurate control module executes sequential control of the time sequence according to the number of the state sequences and the duration of each state sequence;
the channel switching module receives a channel switching signal of the state sequence accurate control module in real time and executes sequential switching of a voltage channel and a current channel;
the signal generation module receives the amplitude of the alternating current signal in real time, combines a preset phase angle and a preset frequency, synthesizes the alternating current signal and outputs the alternating current signal.
Preferably, the multi-channel ac signal state sequence control generator, the state sequence initialization module:
defining the number N of state sequences, wherein N is a natural number, Seq _ Num is a state sequence number flag bit, Seq _ Num is N, and N belongs to N;
defining the voltage and current amplitude of each state sequence, wherein Ux _ Stan is the amplitude of voltage in the nth state, Ix _ Stan is the amplitude of current in the nth state, x represents a phase sequence, and x is a phase a, a phase b and a phase c;
the duration Dt _ Stan of each state sequence is defined as the duration for which the nth state lasts.
Preferably, the multi-channel ac signal state sequence control generator, the state sequence initialization module further sets:
amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current;
the magnitudes Ux _ End and Ix _ End of the voltage current End state.
Preferably, the multi-channel alternating current signal state sequence sequential control generator, the channel switching module is provided with a channel selector,
the amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current, the amplitudes Ux _ End and Ix _ End of the ending state of the voltage and the current, the voltage and the current amplitudes of each state sequence and the state sequence number flag bit Seq _ Num are respectively input into the channel selector, and the amplitude of the state period corresponding to the state sequence number flag bit Seq _ Num is respectively output to the alternating current voltage channel by the channel selector, and is output by the M _ Ux, the alternating current channel and is output by the M _ I x.
Preferably, in the multi-channel alternating current signal state sequence sequential control generator, the state sequence precise control module is provided with a sequence starting and stopping trigger unit, a state sequence precise control unit and a state sequence integration unit;
after the voltage and current amplitude of each state sequence and the duration of each state sequence are initialized, triggering a sequence starting button, starting a timer and triggering a state 1 sequence starting signal, wherein the working mark position 1 of the state 1 sequence, Dt _ Sta1 is the duration of the first state sequence, and the initialization stage is used for configuring the state 1 sequence starting signal;
after Sta1 is set to 1, the clock is compared with Dt _ Sta1, when the operation of the time interval Dt _ Sta1 is finished, the state 1 is automatically locked, Dis _ Sta1 is a locking mark position 1, the locking signal is a starting signal of a state 2 sequence, and each state sequence is sequentially executed;
when the last state sequence is executed and locked, triggering termination sequence logic to finish the state sequence execution;
the state sequence integration unit is mainly responsible for generating a value of Seq _ Num, flag bits of other sequences are all 0 in the operation stage of the state sequence n, the Seq _ Num drives the channel selection module, and the amplitude, the phase angle and the frequency of the alternating current signal at the corresponding state moment are transmitted to the sine signal generator module, so that synchronous sequential control of the state sequence of the multi-channel alternating current signal is realized.
The invention relates to a multi-channel alternating current signal state sequence control generator which is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module; the state sequence initialization module is used for defining the number of the state sequences, the voltage and current amplitude of each state sequence and the duration of each state sequence; the state sequence accurate control module executes sequential control of the time sequence according to the number of the state sequences and the duration of each state sequence; the channel switching module receives a channel switching signal of the state sequence accurate control module in real time and executes sequential switching of a voltage channel and a current channel; the signal generation module receives the amplitude of the alternating current signal in real time, combines a preset phase angle and a preset frequency, synthesizes the alternating current signal and outputs the alternating current signal. The multichannel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module, and all the modules cooperate with each other to realize accurate control of a state sequence. The invention adopts the modularized arrangement, has high transportability and strong universality, and can greatly reduce the workload of testers, thereby improving the detection efficiency.
Drawings
The invention is further illustrated by means of the attached drawings, the content of which is not in any way limiting.
FIG. 1 is a schematic diagram of a multi-channel AC signal state sequence sequential control generator according to the present invention.
FIG. 2 is a logic diagram of the multi-channel AC signal state sequence sequential control generator initialization and channel switching according to the present invention.
FIG. 3 is a state sequence control logic diagram of a multi-channel AC signal state sequence control generator of the invention.
Detailed Description
The invention is further illustrated by the following examples.
Example 1.
A multi-channel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module as shown in figure 1.
The state sequence initialization module is used for defining the number of the state sequences, the voltage and current amplitude of each state sequence and the duration of each state sequence;
the state sequence accurate control module executes sequential control of the time sequence according to the number of the state sequences and the duration of each state sequence;
the channel switching module receives a channel switching signal of the state sequence accurate control module in real time and executes sequential switching of a voltage channel and a current channel;
the signal generation module receives the amplitude of the alternating current signal in real time, combines a preset phase angle and a preset frequency, synthesizes the alternating current signal and outputs the alternating current signal.
Specifically, the state sequence initialization module performs the following specific initialization operations:
defining the number N of state sequences, wherein N is a natural number, Seq _ Num is a state sequence number flag bit, Seq _ Num is N, and N belongs to N;
defining the voltage and current amplitude of each state sequence, wherein Ux _ Stan is the amplitude of voltage in the nth state, Ix _ Stan is the amplitude of current in the nth state, x represents a phase sequence, and x is a phase a, a phase b and a phase c;
defining the duration Dt _ Stan of each state sequence as the duration of the nth state;
amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current;
the magnitudes Ux _ End and Ix _ End of the voltage current End state.
The multi-channel alternating current signal state sequence control generator is characterized in that a channel selector is arranged on a channel switching module. The amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current, the amplitudes Ux _ End and Ix _ End of the ending state of the voltage and the current, the voltage and the current amplitudes of each state sequence and the state sequence number flag bit Seq _ Num are respectively input into the channel selector, and the amplitude of the state period corresponding to the state sequence number flag bit Seq _ Num is respectively output to the alternating current voltage channel by the channel selector, and is output by the M _ Ux, the alternating current channel and is output by the M _ I x.
The state sequence accurate control module is provided with a sequence starting and stopping triggering unit, a state sequence accurate control unit and a state sequence integration unit.
After the voltage and current amplitude of each state sequence and the duration of each state sequence are initialized, triggering a sequence starting button, starting a timer and triggering a state 1 sequence starting signal, wherein the working mark position 1 of the state 1 sequence, Dt _ Sta1 is the duration of the first state sequence, and the initialization stage is used for configuring the state 1 sequence starting signal; after Sta1 is set to 1, the clock is compared with Dt _ Sta1, when the operation of the time interval Dt _ Sta1 is finished, the state 1 is automatically locked, Dis _ Sta1 is a locking mark position 1, the locking signal is a starting signal of a state 2 sequence, and each state sequence is sequentially executed; when the last state sequence is executed and locked, triggering termination sequence logic to finish the state sequence execution;
the state sequence integration unit is mainly responsible for generating a value of Seq _ Num, flag bits of other sequences are all 0 in the operation stage of the state sequence n, the Seq _ Num drives the channel selection module, and the amplitude, the phase angle and the frequency of the alternating current signal at the corresponding state moment are transmitted to the sine signal generator module, so that synchronous sequential control of the state sequence of the multi-channel alternating current signal is realized.
The multichannel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module, and all the modules cooperate with each other to realize accurate control of a state sequence. The invention adopts the modularized arrangement, has high transportability and strong universality, and can greatly reduce the workload of testers, thereby improving the detection efficiency.
Example 2.
The multi-channel AC signal state sequence control generator of the present invention will be described by taking a voltage-current sequence having 6 states as an example. The multichannel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module.
As shown in fig. 2, in the channel switching module, Ux _ Init (x is a, b, c) and Ix _ Init (x is a, b, c) are amplitudes of the voltage and current initial states; ux _ End (x ═ a, b, c), Ix _ End (x ═ a, b, c) are the magnitudes of the voltage current End states. Ux _ Stan (x ═ a, b, c) and Ix _ Stan (x ═ a, b, c) represent the magnitudes of the voltage and current in the n-th (n ═ 1,2,3,4,5,6) state sequence. Seq _ Num is a state sequence number flag, that is, during the nth state, Seq _ Num equals n, and the channel selector outputs the magnitude of the corresponding state to M _ Ux (x equals a, b, c) and M _ Ix (x equals a, b, c).
The state sequence accurate control module, as shown in fig. 3, mainly consists of three parts: the system comprises a sequence starting and stopping triggering unit, a state sequence accurate control unit and a state sequence integration unit.
In fig. 3, En _ Sta1 is the start state sequence 1 signal, Timer is the clock signal, Sta6 is the running flag of state sequence 6, and the falling edge triggers the logic to terminate. Dis _ Sta1 is State sequence 1 latch signal, Dt _ Sta1 is State sequence 1 duration constant.
After the initialization of the amplitude and time of each state sequence is completed, the sequence start button is triggered, the control logic starts the timer and triggers the state sequence 1 start signal (En _ Sta1), the state sequence 1 operation flag (Sta1) is set to 1, and Dt _ Sta1 indicates the duration of the first state sequence, which is configured for the initialization phase. After Sta1 is set to 1, the clock (Timer) is ratioed to Dt _ Sta1, and when the time interval Dt _ Sta1 ends, the auto-lock status sequence 1, Dis _ Sta1 is lock flag position 1, and the lock signal (Dis _ Sta1) is the enable signal for status sequence 2, and the status sequences are executed in sequence. And when the execution of the last state sequence is finished and locked, triggering termination sequence logic and finishing the execution of the state sequence. The state sequence integration logic is mainly responsible for generating the value of Seq _ Num, for example, in the operating stage of the state sequence 3, flag bits of other sequences are all 0, Sta3 is 1, the association between Seq _ Num and the executing sequence is realized, Seq _ Num drives the channel selection module shown in fig. 2, the amplitude, the phase angle and the frequency of the alternating current signal at the corresponding state moment are transmitted to the sinusoidal signal generator module, and the synchronous sequence control of the state sequence of the multi-channel alternating current signal is realized.
The multichannel alternating current signal state sequence control generator is provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module, and all the modules cooperate with each other to realize accurate control of a state sequence. The invention adopts the modularized arrangement, has high transportability and strong universality, and can greatly reduce the workload of testers, thereby improving the detection efficiency.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the protection scope of the present invention, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A multi-channel alternating current signal state sequence control generator is characterized by being provided with a state sequence initialization module, a signal generation module, a channel switching module and a state sequence accurate control module;
the state sequence initialization module is used for defining the number of the state sequences, the voltage and current amplitude of each state sequence and the duration of each state sequence;
the state sequence accurate control module executes sequential control of the time sequence according to the number of the state sequences and the duration of each state sequence;
the channel switching module receives a channel switching signal of the state sequence accurate control module in real time and executes sequential switching of a voltage channel and a current channel;
the signal generation module receives the amplitude of the alternating current signal in real time, combines a preset phase angle and a preset frequency, synthesizes the alternating current signal and outputs the alternating current signal.
2. The multi-channel ac signal state sequence sequential control generator of claim 1, wherein the state sequence initialization module:
defining the number N of state sequences, wherein N is a natural number, Seq _ Num is a state sequence number flag bit, Seq _ Num is N, and N belongs to N;
defining the voltage and current amplitude of each state sequence, wherein Ux _ Stan is the amplitude of voltage in the nth state, Ix _ Stan is the amplitude of current in the nth state, x represents a phase sequence, and x is a phase a, a phase b and a phase c;
the duration Dt _ Stan of each state sequence is defined as the duration for which the nth state lasts.
3. The multi-channel ac signal state sequence sequential control generator of claim 2, wherein the state sequence initialization module further configures:
amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current;
the magnitudes Ux _ End and Ix _ End of the voltage current End state.
4. A multi-channel AC signal state sequence sequential control generator as claimed in claim 3, wherein the channel switching module is provided with a channel selector,
the amplitudes Ux _ Init and Ix _ Init of the initial state of the voltage and the current, the amplitudes Ux _ End and Ix _ End of the ending state of the voltage and the current, the voltage and the current amplitudes of each state sequence and the state sequence number flag bit Seq _ Num are respectively input into the channel selector, and the amplitude of the state period corresponding to the state sequence number flag bit Seq _ Num is respectively output to the alternating current voltage channel by the channel selector, and is output by the M _ Ux, the alternating current channel and is output by the M _ Ix.
5. The multi-channel AC signal state sequence sequential control generator of claim 4, wherein the state sequence precise control module is provided with a sequence start and stop trigger unit, a state sequence precise control unit and a state sequence integration unit.
6. The multi-channel AC signal state sequence sequential control generator of claim 5, wherein after initialization of the voltage and current amplitudes of each state sequence and the duration of each state sequence is completed, the sequence start button is triggered, the timer is started, and the state 1 sequence start signal is triggered, the state 1 sequence operation flag position 1, Dt _ Sta1 is the duration of the first state sequence, configured by the initialization phase;
after Sta1 is set to 1, the clock is compared with Dt _ Sta1, when the operation of the time interval Dt _ Sta1 is finished, the state 1 is automatically locked, Dis _ Sta1 is a locking mark position 1, the locking signal is a starting signal of a state 2 sequence, and each state sequence is sequentially executed;
when the last state sequence is executed and locked, triggering termination sequence logic to finish the state sequence execution;
the state sequence integration unit is mainly responsible for generating a value of Seq _ Num, flag bits of other sequences are all 0 in the operation stage of the state sequence n, the Seq _ Num drives the channel selection module, and the amplitude, the phase angle and the frequency of the alternating current signal at the corresponding state moment are transmitted to the sine signal generator module, so that synchronous sequential control of the state sequence of the multi-channel alternating current signal is realized.
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