CN112671099A - Power monitoring system of power generation equipment - Google Patents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention provides an electric energy monitoring system of power generation equipment, which utilizes a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, electric equipment and an automatic starting circuit to monitor the electric equipment and the power generation equipment simultaneously, wherein the current sensor, the voltage sensor and the data processor are used for monitoring the power generation equipment, and the temperature sensor, the data processor and the automatic starting circuit are used for monitoring the electric equipment.
Description
Technical Field
The invention relates to the field of intelligent testing, in particular to an electric energy monitoring system of power generation equipment.
Background
The electric power industry is a public utility and a basic industry supporting national economy and social development, electric energy is used as the most widely used energy, and the automation degree and the application degree of production management are one of the main signs of the national development level and the comprehensive national force. In recent years, along with the vigorous development of the power industry in China and the rapid increase of power loads, various nonlinear and impact loads are continuously increased, the loads cause serious pollution to the power quality of a power supply system, and on the other hand, modern highly-automated and intelligent industrial electric equipment also puts higher requirements on the power supply quality.
In the prior art, when monitoring the electric energy of the power generation equipment, the monitoring is usually carried out through a complex electric energy quality algorithm, for the purpose, when the data collected by a sensor is operated by using the complex electric energy quality algorithm, the algorithm is influenced, the calculation result is often easy to distort, meanwhile, when monitoring the electric energy, the monitoring is usually carried out only on the power generation equipment, the monitoring belongs to front-end monitoring, the monitoring is not effectively carried out on a rear-end load, namely, the monitoring is effectively carried out on the power generation equipment, and therefore monitoring is not complete.
Disclosure of Invention
Therefore, in order to overcome the above problems, the present invention provides a power monitoring system for a power generation device, which utilizes a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, a power consumption device and an automatic starting circuit to simultaneously monitor the power consumption device and the power generation device, wherein, the current sensor, the voltage sensor and the data processor are used for monitoring the power generation equipment, the temperature sensor, the data processor and the automatic starting circuit are used for monitoring the electric equipment, the electric energy can be monitored from the electric equipment and the power generation equipment at the same time, moreover, the automatic starting circuit and the data processor can timely control the connection relation of the power generation equipment and the electric equipment according to the analyzed power quality of the power generation equipment and the power load condition of the electric equipment, and the safety of power utilization is improved.
The power generation equipment electric energy monitoring system provided by the invention comprises a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, power utilization equipment and an automatic starting circuit.
The power generation equipment is wind power generation equipment or solar power generation equipment, the current sensor and the voltage sensor are both connected with the power generation equipment, the current sensor and the voltage sensor are also both connected with the data processor, the data processor is connected with the energy storage charging and discharging circuit, the power generation equipment is connected with the energy storage charging and discharging circuit, the energy storage charging and discharging circuit is connected with the super capacitor, the super capacitor is connected with the power utilization equipment, the temperature sensor is also connected with the data processor, and the power utilization equipment is connected with the automatic starting circuit.
The current sensor is used for monitoring a current signal of the electric equipment, the voltage sensor is used for monitoring a voltage signal of the electric equipment, the current sensor transmits the current signal obtained by monitoring to the data processor, the voltage sensor transmits the voltage signal obtained by monitoring to the data processor, and the data processor controls the on-off of the energy storage charging and discharging circuit after analyzing and processing the received current signal and the received voltage signal; the temperature sensor is used for monitoring a temperature signal of a power supply of the electric equipment, the temperature sensor transmits the temperature signal obtained by monitoring to the data processor, and the data processor analyzes and processes the received temperature signal and then controls the on-off of the energy storage charging and discharging circuit; the automatic starting circuit is used for controlling the working state of the electric equipment.
Specifically, the current signal collected by the current sensor is i (t), the voltage signal collected by the voltage sensor is u (t), if any,
wherein h is the harmonic order, h =1 is the fundamental wave, N is the highest harmonic order,
for the effective value of each voltage harmonic signal,
for the effective value of each sub-current harmonic signal,
is the initial phase of the voltage harmonics,
is the initial phase of the current harmonics,
is the fundamental frequency; the data processor calculates the total harmonic power P from the received voltage and current signals, and, if so,
wherein,
is the power of the fundamental wave,
and if the power P is not in the range of the power threshold, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
Specifically, the data processor also comprises an AND gate circuit, the current signal collected by the current sensor is i (T), the voltage signal collected by the voltage sensor is u (T), the data processor analyzes the voltage signal and the current signal in the time period T, wherein T is a time parameter which is more than or equal to n sampling periods, n is more than or equal to 3, the data processor extracts n-1 peak values of the voltage signal in the T period, and taking the absolute value of the difference between every two n-1 peak values, storing the voltage threshold range in the data processor, if the absolute values are all in the voltage threshold range, the data processor inputs a high level signal to the first input terminal of the and circuit, and if any one of the absolute values is not within the voltage threshold range, the data processor inputs a low level signal to the first input terminal of the and circuit.
The data processor extracts n-1 peak values of the current signal in the T time period, performs subtraction on every two n-1 peak values to obtain an absolute value, stores a current threshold range in the data processor, inputs a high level signal to a second input end of the AND gate circuit if the absolute values are all in the current threshold range, and inputs a low level signal to the second input end of the AND gate circuit if any one of the absolute values is not in the current threshold range.
The output end of the AND gate circuit is connected with the input end of the energy storage charging and discharging circuit, if the energy storage charging and discharging circuit receives a high level signal, the energy storage charging and discharging circuit is connected with the power generation equipment, and if the energy storage charging and discharging circuit receives a low level signal, the energy storage charging and discharging circuit is disconnected with the power generation equipment.
Specifically, the temperature sensor is used for monitoring a temperature signal of a power supply of the electric equipment, the temperature sensor transmits the temperature signal obtained through monitoring to the data processor, a temperature threshold range is stored in the data processor, if the temperature signal is within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be connected with the power generation equipment, and if the temperature signal is not within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
Specifically, the energy storage charging and discharging circuit comprises capacitors C1-C3, an inductor L1, a voltage regulator tube D1 and a boost converter.
One end of a capacitor C1 is connected with a negative output end of a power generation device, the other end of the capacitor C1 is connected with a positive output end of the power generation device, the other end of a capacitor C1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with an input end of a boost converter, the other end of the inductor L1 is further connected with an anode of a voltage regulator tube D1, one end of the capacitor C1 is grounded, a cathode of the voltage regulator tube D1 is connected with an output end of the boost converter, one end of the capacitor C2 is grounded, the other end of the capacitor C2 is connected with an output end of the boost converter, one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected with a cathode of a voltage regulator tube D1, and.
Specifically, the auto-start circuit includes resistors R1-R5, a capacitor C4, an N-type power switch transistor N1, a voltage converter, and a voltage threshold circuit.
Wherein, the negative output end of the power supply of the electric equipment is connected with one end of a resistor R2, the other end of the resistor R2 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the positive output end of the electric equipment, one end of a resistor R2 is grounded, one end of a resistor R3 is connected with the input end of a voltage threshold circuit, the other end of a resistor R1 is also connected with the other end of a resistor R3, the other end of a resistor R3 is connected with one end of a resistor R1, one end of a capacitor C4 is grounded, the other end of a capacitor C4 is connected with one end of a resistor R3, the other end of a capacitor C4 is also connected with the input end of the voltage converter, one end of a resistor R4 is grounded, the other end of a resistor R4 is connected with the output end of the voltage threshold circuit, the other end of the resistor R4 is also connected with the grid of an N-type power switching transistor N1, one end of the resistor R5 is connected with the, the source of the N-type power switch transistor N1 is grounded, and the output terminal of the voltage converter is connected to the external interrupt pin V of the electric equipment.
Compared with the prior art, the invention has the following beneficial effects:
(1) the invention provides an electric energy monitoring system of power generation equipment, which utilizes a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, electric equipment and an automatic starting circuit to monitor the electric equipment and the power generation equipment simultaneously, wherein the current sensor, the voltage sensor and the data processor are used for monitoring the power generation equipment, and the temperature sensor, the data processor and the automatic starting circuit are used for monitoring the electric equipment.
(2) The invention provides an electric energy monitoring system of power generation equipment, which is characterized in that when the electric energy of the power generation equipment is monitored, a current sensor and a voltage sensor are used for monitoring a voltage signal and a current signal of the power generation equipment, a data processor analyzes and processes the received current signal and the received voltage signal, two analysis and processing methods are used, the first method is to test the total power of harmonic waves through a preset algorithm, and the other method is to obtain the difference between peak values by sampling the peak values in a preset time period so as to know whether the electric signals generated by the power generation equipment are stable.
(3) The invention also provides a power monitoring system of the power generation equipment, and the invention also provides an output voltage V of the super capacitorCUsing an internal VHTo VLThe energy interval resistors R1 and R2 are used for voltage division. The invention uses the voltage threshold circuit with the IC number MAX809 to avoid the output voltage V of the super capacitorCLess than VHA short circuit is formed, and the subsequent N-type power switch transistor Nl is used as a switch control. When the internal energy of the super capacitor can satisfy PALLWhen the N-type power switch transistor Nl is turned on, the pin V of the active device is changed from a High signal (3.3V) to a Low signal (the voltage across the resistor R5 and the N-type power switch transistor N1 when they are turned on), and the active device wakes up again and enters the active mode.
Drawings
FIG. 1 is a functional diagram of a power plant power monitoring system of the present invention;
FIG. 2 is a circuit diagram of the energy storage charging and discharging circuit of the present invention;
fig. 3 is a circuit diagram of the automatic start-up circuit of the present invention.
Detailed Description
The following describes the power monitoring system of a power generation device in detail with reference to the accompanying drawings and embodiments.
As shown in fig. 1, the power monitoring system for power generation equipment provided by the invention comprises a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, power utilization equipment and an automatic starting circuit.
The power generation equipment is wind power generation equipment or solar power generation equipment, the current sensor and the voltage sensor are both connected with the power generation equipment, the current sensor and the voltage sensor are also both connected with the data processor, the data processor is connected with the energy storage charging and discharging circuit, the power generation equipment is connected with the energy storage charging and discharging circuit, the energy storage charging and discharging circuit is connected with the super capacitor, the super capacitor is connected with the power utilization equipment, the temperature sensor is also connected with the data processor, and the power utilization equipment is connected with the automatic starting circuit.
The current sensor is used for monitoring a current signal of the electric equipment, the voltage sensor is used for monitoring a voltage signal of the electric equipment, the current sensor transmits the current signal obtained by monitoring to the data processor, the voltage sensor transmits the voltage signal obtained by monitoring to the data processor, and the data processor controls the on-off of the energy storage charging and discharging circuit after analyzing and processing the received current signal and the received voltage signal; the temperature sensor is used for monitoring a temperature signal of a power supply of the electric equipment, the temperature sensor transmits the temperature signal obtained by monitoring to the data processor, and the data processor analyzes and processes the received temperature signal and then controls the on-off of the energy storage charging and discharging circuit; the automatic starting circuit is used for controlling the working state of the electric equipment.
In the above embodiment, the data processor, the current sensor, the voltage sensor, the energy storage charging and discharging circuit, the super capacitor, the temperature sensor, the power consumption equipment and the automatic starting circuit are used for monitoring the power consumption equipment and the power generation equipment simultaneously, wherein the current sensor is used, the voltage sensor and the data processor are used for monitoring the power generation equipment, the temperature sensor is used, the data processor and the automatic starting circuit are used for monitoring the power consumption equipment, not only can the power consumption equipment and the power generation equipment be monitored simultaneously, but also the automatic starting circuit and the data processor can timely control the connection relation between the power generation equipment and the power consumption equipment according to the power quality of the power generation equipment and the power load condition of the power consumption equipment obtained through analysis, and the safety of power consumption is improved.
Furthermore, the current signal collected by the current sensor is i (t), the voltage signal collected by the voltage sensor is u (t), if yes,
wherein h is the harmonic order, h =1 is the fundamental wave, N is the highest harmonic order,
for the effective value of each voltage harmonic signal,
for the effective value of each sub-current harmonic signal,
is the initial phase of the voltage harmonics,
is the initial phase of the current harmonics,
is the fundamental frequency; the data processor calculates the total harmonic power P from the received voltage and current signals, and, if so,
wherein,
is the power of the fundamental wave,
and if the power P is not in the range of the power threshold, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
In the above embodiment, when monitoring the electric energy of the power generation equipment, the current sensor and the voltage sensor are used to monitor the voltage signal and the current signal of the power generation equipment, the data processor analyzes and processes the received current signal and the received voltage signal, and herein, the total harmonic power is tested by a preset algorithm to know whether the electric signal generated by the power generation equipment is stable.
Furthermore, the data processor also comprises an AND gate circuit, the current signal collected by the current sensor is i (T), the voltage signal collected by the voltage sensor is u (T), the data processor analyzes the voltage signal and the current signal in the time period T, wherein T is a time parameter which is more than or equal to n sampling periods, n is more than or equal to 3, the data processor extracts n-1 peak values of the voltage signal in the T period, and taking the absolute value of the difference between every two n-1 peak values, storing the voltage threshold range in the data processor, if the absolute values are all in the voltage threshold range, the data processor inputs a high level signal to the first input terminal of the and circuit, and if any one of the absolute values is not within the voltage threshold range, the data processor inputs a low level signal to the first input terminal of the and circuit.
The data processor extracts n-1 peak values of the current signal in the T time period, performs subtraction on every two n-1 peak values to obtain an absolute value, stores a current threshold range in the data processor, inputs a high level signal to a second input end of the AND gate circuit if the absolute values are all in the current threshold range, and inputs a low level signal to the second input end of the AND gate circuit if any one of the absolute values is not in the current threshold range.
The output end of the AND gate circuit is connected with the input end of the energy storage charging and discharging circuit, if the energy storage charging and discharging circuit receives a high level signal, the energy storage charging and discharging circuit is connected with the power generation equipment, and if the energy storage charging and discharging circuit receives a low level signal, the energy storage charging and discharging circuit is disconnected with the power generation equipment.
In the above embodiment, when monitoring the electric energy of the power generation equipment, the current sensor and the voltage sensor are used to monitor the voltage signal and the current signal of the power generation equipment, and the data processor analyzes and processes the received current signal and the received voltage signal, and herein, the peak value within the preset time period is sampled to obtain the difference between the peak values, so as to know whether the electric signal generated by the power generation equipment is stable.
Furthermore, the temperature sensor is used for monitoring a temperature signal of a power supply of the electric equipment, the temperature sensor transmits the temperature signal obtained through monitoring to the data processor, a temperature threshold range is stored in the data processor, if the temperature signal is within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be connected with the power generation equipment, and if the temperature signal is not within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
As shown in fig. 2, the energy storage charging and discharging circuit includes capacitors C1-C3, an inductor L1, a voltage regulator tube D1, and a boost converter.
One end of a capacitor C1 is connected with a negative output end of a power generation device, the other end of the capacitor C1 is connected with a positive output end of the power generation device, the other end of a capacitor C1 is connected with one end of an inductor L1, the other end of the inductor L1 is connected with an input end of a boost converter, the other end of the inductor L1 is further connected with an anode of a voltage regulator tube D1, one end of the capacitor C1 is grounded, a cathode of the voltage regulator tube D1 is connected with an output end of the boost converter, one end of the capacitor C2 is grounded, the other end of the capacitor C2 is connected with an output end of the boost converter, one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected with a cathode of a voltage regulator tube D1, and.
In the above embodiment, the inductor L1 is connected across the first terminal P1 and the second terminal P2. The voltage regulator tube Dl is connected between the second end P2 and the third end P3. The human input end and the output end of the boost converter are respectively connected with the second end P2 and the third end P3, and the capacitor C2 and the capacitor C3 are connected between the third end P3 and the reference voltage end GND in a bridging manner. After the voltage VT generated by the power generation device is operated by the energy storage charging and discharging circuit, an electric energy is provided from the third terminal P3, and the electric energy is stored in the super capacitor to form a super capacitor voltage VC.
Further, the supercapacitor voltage VC is greater than 3.3V.
After determining the power of the load on the rear stage circuit, the invention sets the capacitance value V of the super capacitorHThreshold value and VLA threshold value and apply this VHAnd VLThe interval is set as the energy storage source to provide power to the subsequent circuit (i.e. the electrical device).
The derivation formula of the energy stored by the super capacitor is as follows:
wherein
The maximum required power of the device, namely the power provided by the super capacitor energy interval
Mainly from the power demand P of the consumerMCURequired power P of temperature sensorSNCircuit loss power PLOSSGlobal input PinTo the overall output power PoutConversion efficiency of
And (4) determining. Namely:
this gives:
in the above formula, Ec is the energy stored in the super capacitor, C is the capacitance of the super capacitor,
in order to provide a voltage across the super capacitor 13,
is the total power demand of the device,
is the time required for the device to transmit a signal.
As shown in FIG. 3, the auto-start circuit includes resistors R1-R5, a capacitor C4, an N-type power switch transistor N1, a voltage converter, and a voltage threshold circuit.
Wherein, the negative output end of the power supply of the electric equipment is connected with one end of a resistor R2, the other end of the resistor R2 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the positive output end of the electric equipment, one end of a resistor R2 is grounded, one end of a resistor R3 is connected with the input end of a voltage threshold circuit, the other end of a resistor R1 is also connected with the other end of a resistor R3, the other end of a resistor R3 is connected with one end of a resistor R1, one end of a capacitor C4 is grounded, the other end of a capacitor C4 is connected with one end of a resistor R3, the other end of a capacitor C4 is also connected with the input end of the voltage converter, one end of a resistor R4 is grounded, the other end of a resistor R4 is connected with the output end of the voltage threshold circuit, the other end of the resistor R4 is also connected with the grid of an N-type power switching transistor N1, one end of the resistor R5 is connected with the, the source of the N-type power switch transistor N1 is grounded, and the output terminal of the voltage converter is connected to the external interrupt pin V of the electric equipment.
In the above embodiment, when the powered device enters the sleep state, the I/O point needs to trigger a signal to wake up to enter the operating mode. In this embodiment, the operation mode is performed by triggering the external interrupt pin V of the powered device. And when the V pin is changed from a High signal to a Low signal during the internal burning interrupt processing program of the electric equipment, the electric equipment can be awakened again to enter the working mode.
The resistor R1 and the resistor R2 are connected in series and are connected between the third terminal P3 and the reference voltage terminal GND. The input terminal of the voltage threshold circuit is connected to the third terminal P3 through a resistor R3, the output terminal (the fourth terminal P4) is connected to the gate of the N-type power switch transistor N1, and the fourth terminal P4 is further connected to the reference voltage terminal GND through a resistor R4. The input end of the voltage converter (output 3.3V) is connected to the third terminal P3, and is connected to the reference voltage terminal GND through the capacitor C4, while the output terminal thereof is connected to the fifth terminal P5, the drain of the N-type power switch transistor N1 is connected to the fifth terminal P5 through the resistor R5, and the source thereof is connected to the reference voltage terminal GND.
Output voltage V of super capacitorCUsing an internal VHTo VLThe energy interval resistors R1 and R2 doFor partial pressure. The invention uses the voltage threshold circuit with the IC number MAX809 to avoid the output voltage V of the super capacitorCLess than VHA short circuit is formed, and the subsequent N-type power switch transistor Nl is used as a switch control. When the internal energy of the super capacitor can satisfy PALLWhen the N-type power switch transistor Nl is turned on, the pin V of the active device is changed from a High signal (3.3V) to a Low signal (the voltage across the resistor R5 and the N-type power switch transistor N1 when they are turned on), and the active device wakes up again and enters the active mode.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and are not limited. Although the present invention has been described in detail with reference to the embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (6)
1. The power generation equipment power monitoring system is characterized by comprising a data processor, a current sensor, a voltage sensor, an energy storage charging and discharging circuit, a super capacitor, a temperature sensor, power utilization equipment and an automatic starting circuit;
the power generation equipment is wind power generation equipment or solar power generation equipment, the current sensor and the voltage sensor are both connected with the power generation equipment, the current sensor and the voltage sensor are also both connected with the data processor, the data processor is connected with the energy storage charging and discharging circuit, the power generation equipment is connected with the energy storage charging and discharging circuit, the energy storage charging and discharging circuit is connected with the super capacitor, the super capacitor is connected with the electric equipment, the temperature sensor is also connected with the data processor, and the electric equipment is connected with the automatic starting circuit;
the current sensor is used for monitoring a current signal of the electric equipment, the voltage sensor is used for monitoring a voltage signal of the electric equipment, the current sensor transmits the current signal obtained by monitoring to the data processor, the voltage sensor transmits the voltage signal obtained by monitoring to the data processor, and the data processor analyzes and processes the received current signal and the received voltage signal and then controls the on-off of the energy storage charging and discharging circuit; the temperature sensor is used for monitoring a temperature signal of the power supply of the electric equipment, the temperature sensor transmits the temperature signal obtained by monitoring to the data processor, and the data processor analyzes and processes the received temperature signal and then controls the on-off of the energy storage charging and discharging circuit; the automatic starting circuit is used for controlling the working state of the electric equipment.
2. The power generation equipment power monitoring system of claim 1, wherein the current signal collected by the current sensor is i (t), the voltage signal collected by the voltage sensor is u (t), and then,
wherein h is the harmonic order, h =1 is the fundamental wave, N is the highest harmonic order,
for the effective value of each voltage harmonic signal,
for the effective value of each sub-current harmonic signal,
is the initial phase of the voltage harmonics,
is the initial phase of the current harmonics,
is the fundamental frequency; the data processor calculates the total harmonic power P from the received voltage and current signals, and if so,
wherein,
is the power of the fundamental wave,
and a power threshold range is stored in the data processor for harmonic power, if the power P is within the power threshold range, the data processor controls the energy storage charging and discharging circuit to be connected with the power generation equipment, and if the power P is not within the power threshold range, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
3. The power generation equipment electric energy monitoring system of claim 1, characterized in that the data processor further comprises an AND gate circuit, the current signal collected by the current sensor is i (T), the voltage signal collected by the voltage sensor is u (T), the data processor analyzes the voltage signal and the current signal in a T time period, wherein T is a time parameter which is greater than or equal to n sampling periods, n is greater than or equal to 3, the data processor extracts n-1 peak values of the voltage signal in the T time period and performs difference on n-1 peak values to obtain an absolute value, a voltage threshold range is stored in the data processor, if the absolute values are all in the voltage threshold range, the data processor inputs a high level signal to the first input end of the AND gate circuit, and if any one of the absolute values is not in the voltage threshold range, the data processor inputs a low level signal to the first input end of the and circuit;
the data processor extracts n-1 peak values of the current signal in the T time period, performs subtraction on every two n-1 peak values to obtain an absolute value, stores a current threshold range in the data processor, inputs a high level signal to a second input end of the AND gate circuit if the absolute values are all in the current threshold range, and inputs a low level signal to the second input end of the AND gate circuit if any one of the absolute values is not in the current threshold range;
the output end of the AND gate circuit is connected with the input end of the energy storage charging and discharging circuit, if the energy storage charging and discharging circuit receives a high level signal, the energy storage charging and discharging circuit is connected with the power generation equipment, and if the energy storage charging and discharging circuit receives a low level signal, the energy storage charging and discharging circuit is disconnected with the power generation equipment.
4. The power generation equipment electric energy monitoring system of claim 1, wherein the temperature sensor is configured to monitor a temperature signal of the power supply of the power consumption equipment, the temperature sensor transmits the monitored temperature signal to the data processor, a temperature threshold range is stored in the data processor, if the temperature signal is within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be connected with the power generation equipment, and if the temperature signal is not within the temperature threshold range, the data processor controls the energy storage charging and discharging circuit to be disconnected with the power generation equipment.
5. The power generation equipment power monitoring system of claim 1, wherein the energy storage charging and discharging circuit comprises capacitors C1-C3, an inductor L1, a voltage regulator tube D1 and a boost converter;
one end of the capacitor C1 is connected with a negative output end of the power generation equipment, the other end of the capacitor C1 is connected with a positive output end of the power generation equipment, the other end of the capacitor C1 is connected with one end of the inductor L1, the other end of the inductor L1 is connected with an input end of the boost converter, the other end of the inductor L1 is connected with an anode of a voltage regulator tube D1, one end of the capacitor C1 is grounded, a cathode of the voltage regulator tube D1 is connected with an output end of the boost converter, one end of the capacitor C2 is grounded, the other end of the capacitor C2 is connected with an output end of the boost converter, one end of the capacitor C3 is grounded, the other end of the capacitor C3 is connected with a cathode of the voltage regulator tube D1, and the other end of the capacitor C3.
6. The power plant power monitoring system of claim 4, wherein the auto-start circuit comprises resistors R1-R5, a capacitor C4, an N-type power switch transistor N1, a voltage converter, and a voltage threshold circuit;
wherein, the negative output end of the power supply of the electric equipment is connected with one end of a resistor R2, the other end of the resistor R2 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with the positive output end of the electric equipment, one end of a resistor R2 is grounded, one end of a resistor R3 is connected with the input end of the voltage threshold circuit, the other end of a resistor R1 is further connected with the other end of a resistor R3, the other end of a resistor R3 is connected with one end of a resistor R1, one end of a capacitor C4 is grounded, the other end of a capacitor C4 is connected with one end of a resistor R3, the other end of a capacitor C4 is further connected with the input end of the voltage converter, one end of a resistor R4 is grounded, the other end of a resistor R8 is connected with the output end of the voltage threshold circuit, the other end of a resistor R4 is further connected with the gate of an N-type power switch transistor N1, one end of a resistor, the other end of the resistor R5 is connected with the output end of the voltage converter, the source electrode of the N-type power switch transistor N1 is grounded, and the output end of the voltage converter is connected with an external interrupt pin V of the electric equipment.
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