CN114914939A - Complementary power supply system composed of photovoltaic, energy storage and diesel generator systems - Google Patents

Complementary power supply system composed of photovoltaic, energy storage and diesel generator systems Download PDF

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CN114914939A
CN114914939A CN202210533975.5A CN202210533975A CN114914939A CN 114914939 A CN114914939 A CN 114914939A CN 202210533975 A CN202210533975 A CN 202210533975A CN 114914939 A CN114914939 A CN 114914939A
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power
power generation
photovoltaic
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unit
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卢钢
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SHENZHEN VERYPOWER NEW ENERGY CO Ltd
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SHENZHEN VERYPOWER NEW ENERGY CO Ltd
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/38—Arrangements for parallely feeding a single network by two or more generators, converters or transformers
    • H02J3/381—Dispersed generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
    • H02J3/14—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load by switching loads on to, or off from, network, e.g. progressively balanced loading
    • H02J3/144—Demand-response operation of the power transmission or distribution network
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J3/00—Circuit arrangements for ac mains or ac distribution networks
    • H02J3/28—Arrangements for balancing of the load in a network by storage of energy
    • H02J3/32—Arrangements for balancing of the load in a network by storage of energy using batteries with converting means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2203/00—Indexing scheme relating to details of circuit arrangements for AC mains or AC distribution networks
    • H02J2203/20—Simulating, e g planning, reliability check, modelling or computer assisted design [CAD]
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/10—The dispersed energy generation being of fossil origin, e.g. diesel generators
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/22—The renewable source being solar energy
    • H02J2300/24—The renewable source being solar energy of photovoltaic origin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2300/00—Systems for supplying or distributing electric power characterised by decentralized, dispersed, or local generation
    • H02J2300/20—The dispersed energy generation being of renewable origin
    • H02J2300/28—The renewable source being wind energy
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/76—Power conversion electric or electronic aspects

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Electrical Variables (AREA)

Abstract

The invention discloses a complementary power supply system consisting of a photovoltaic system, an energy storage system and a diesel generator system, which belongs to the technical field of power supply and comprises a control unit, wherein the control unit is electrically connected with a photovoltaic system and a wind power generation system through an inversion control module, and the input end of the control unit is connected with the output end of a generator power supply unit. According to the invention, the power regulation and control unit automatically regulates the photovoltaic power generation power, the wind power generation power and the generator power generation power according to the current load requirement, so that the intelligent complementary power supply purpose of photovoltaic power generation, wind power generation and generator set power generation is realized, meanwhile, the simplified PCNN model is utilized, the threshold value is improved, an algorithm suitable for data noise reduction is obtained, the noise in signals is effectively filtered, the characteristic information of the data can be retained, compared with wavelet noise reduction, the algorithm has a larger signal-to-noise ratio and a smaller mean square error, and the wrong evaluation and fault judgment of a power supply mode are avoided.

Description

Complementary power supply system composed of photovoltaic, energy storage and diesel generator systems
Technical Field
The invention belongs to the technical field of power supply, and particularly relates to a complementary power supply system consisting of a photovoltaic system, an energy storage system and a diesel generator system.
Background
The power supply system is a system which is composed of a power supply system and a power transmission and distribution system and is used for generating electric energy and supplying and conveying the electric energy to electric equipment, the power supply system can be roughly divided into three types of TN, IT and TT, wherein the TN system is divided into three expression forms of TN-C, TN-S and TN-C-S, and can be divided into a non-standby system and a standby wiring system according to the requirement on the reliability of load power supply. In a standby wiring system, when one circuit fails, the rest circuits can ensure that all power supplies become a complete standby system; if only the power supply to important users can be guaranteed, the system becomes an incomplete standby system, and the standby system can be switched into a manual mode, an automatic mode, a frequent mode and the like.
Along with the aggravation of global energy crisis and increasingly severe atmospheric pollution, the state sets a series of environmental protection policies, wherein related research, development and application benefits of clean energy are remarkable, the clean energy is accelerated to enter the visual field of people, and matched multi-energy complementary technologies such as light energy, wind energy, gas energy and energy storage are further developed to form a new situation of clean energy application.
In the power data transmission technology, noise data is inevitably generated due to random errors in monitoring of power data, and the accuracy of an analysis result is affected by the noise-containing data, thereby causing erroneous evaluation and failure judgment of a power supply method.
Disclosure of Invention
Technical problem to be solved
In order to overcome the defects of the prior art, the invention provides a complementary power supply system consisting of a photovoltaic system, an energy storage system and a diesel generator system, which solves the problem of energy storage of a storage battery, ensures that the charge and discharge of the storage battery cannot reach normal values, shortens the service life of the storage battery, only solves the aim of saving diesel power generation by adding a new energy power generation strategy, cannot realize the intelligent complementary power supply aim, and aims at the problems that in the power data transmission technology, noise data are inevitably generated due to the existence of random errors in the monitoring of power data, the accuracy of an analysis result is influenced by the data containing the noise, and the power supply mode is subjected to wrong evaluation and fault judgment.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: complementary power supply system who constitutes by photovoltaic, energy storage and diesel generator system, including the control unit, the control unit passes through contravariant control module and photovoltaic, wind power generation system electric connection, the input of the control unit is connected with generator power supply unit's output, generator power supply unit's input is connected with electricity generation switch control module's output, electricity generation switch control module is connected with mains switch control module's output, mains switch control module is connected with the output of commercial power incoming line control module, the control unit is connected with power consumption storage module both way, power consumption storage module is qualified for the next round of competitions control module through PCS energy storage converter and load and is connected.
The output end of the PCS energy storage converter is connected with the input end of the control unit, the output end of the control unit is connected with the electricity distribution unit and the intelligent monitoring unit, the input end of the intelligent monitoring unit is connected with the output ends of the generator power supply unit and the inversion control module, the output end of the intelligent monitoring unit is connected with the input end of the data transmission unit through the power management unit, the output end of the data transmission unit is connected with the input end of the power regulation and control unit, and the output end of the power regulation and control unit is connected with the input end of the control unit.
As a further scheme of the invention: the photovoltaic and wind power generation system comprises a photovoltaic array acquisition module and a wind power generation module, the output ends of the photovoltaic array acquisition module and the wind power generation module are respectively connected with the input ends of a photovoltaic controller and a wind power controller, and the output ends of the photovoltaic controller and the wind power controller are connected with the input end of an inversion control module.
The inversion control module is an inversion control integrated machine.
The photovoltaic controller is used for converting electric energy obtained by photovoltaic power generation into direct current electric energy.
The wind power controller is used for converting electric energy obtained by wind power generation into direct current electric energy.
As a further scheme of the invention: the power distribution unit is used for distributing power supplied to each electric device, and the commercial power incoming line control module is composed of a commercial power incoming line box and a current transformer.
As a further scheme of the invention: the control unit comprises an EMS energy management unit, a BMS battery management module, a multifunctional instrument, a bus controller, a unit control module and a bus self-electricity utilization control module.
The EMS energy management unit is electrically connected with the BMS battery management module, the multifunctional instrument, the bus controller and the unit control module through wires, the unit controller is electrically connected with the generator power supply unit, and the unit control module is in signal connection with the power generation switch control module.
As a further scheme of the invention: the intelligent monitoring unit comprises a power utilization storage monitoring module and a microgrid load monitoring module.
The microgrid load monitoring module: the method is used for monitoring the characteristic data of the power supply system in real time.
The power utilization storage monitoring module: the power consumption monitoring system is used for monitoring the real-time stored power of the power consumption storage module and judging whether the power consumption storage module has power shortage or power overload.
As a further scheme of the invention: the power management unit comprises a photovoltaic power generation power monitoring module, a wind power generation power monitoring module and a generator set power generation power monitoring module and is used for monitoring photovoltaic power generation power, wind power generation power and generator power generation power in real time.
As a further scheme of the invention: the power regulation and control unit is used for automatically regulating and controlling photovoltaic power generation power, wind power generation power and generator power generation power.
As a further scheme of the invention: the generator power supply unit consists of a generator set, an engine, a battery, a base oil tank, a water tank and a water jacket heater, and the generator set comprises a generator and a current transformer.
As a further scheme of the invention: the electrical connection relationship of the generator power supply unit in the power supply mode is as follows:
the input end of the generator set is connected with the output end of the power generation switch control module, the output end of the generator set is connected with the input end of the EMS energy management unit, the output end of the EMS energy management unit is respectively connected with the input ends of the BMS battery management module and the PCS energy storage converter, the output end of the BMS battery management module is connected with the input end of the electricity utilization storage module, the electricity utilization storage module is bidirectionally connected with the PCS energy storage converter, and the PCS energy storage converter outputs load power supply.
The power of the PCS energy storage converter is 20KW or 100 KW.
As a further scheme of the invention: the specific implementation steps of the microgrid load monitoring module and the power regulation and control unit are as follows:
and S10, when the microgrid load changes, analyzing the multiple characteristic feedback signals according to the control unit, forming control parameters, and transmitting the control parameter signals to the power regulation and control unit.
And S11, when the photovoltaic power generation power, the wind power generation power and the generator power do not meet the current load requirement, generating and outputting control parameters according to the difference between the photovoltaic power generation power, the wind power generation power and the generator power and the current load requirement, and sending the control parameters to the power regulation and control unit.
And S12, enabling the power regulation and control unit to automatically regulate the photovoltaic power generation power, the wind power generation power and the generator power generation power according to the current load requirement, and performing power supply complementation.
As a further scheme of the invention: the regulation and control mode of the power regulation and control unit is as follows:
and S20, monitoring the photovoltaic power generation power, the wind power generation power and the generator power generation power in real time through the power management unit, and controlling the residual alternating current power meeting the current load requirement to be led out through the PCS energy storage converter and stored in the electricity utilization storage module if the monitored photovoltaic power generation power, the wind power generation power and the generator power generation meet the current load requirement.
And S21, adjusting the photovoltaic power generation and the wind power generation to work at the highest power, reducing the power generation power of the generator set, enabling the generator set to output at the minimum power, and achieving the purpose of power supply complementation of the photovoltaic power generation, the wind power generation and the generator set power generation.
(III) advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, the photovoltaic power generation power, the wind power generation power and the generator power are monitored in real time through a power management unit, if the monitored photovoltaic power generation power, the wind power generation power and the generator power meet the current load demand, the residual alternating current power meeting the current load demand is controlled to be led out through a PCS energy storage converter and stored in an electricity utilization storage module, the electricity utilization storage module is effectively stored, the charge and discharge of the electricity utilization storage module reach a normal value, the service life of the electricity utilization storage module is ensured, the photovoltaic power generation and the wind power generation are regulated to work at the highest power, the generator power of a generator set is reduced, the generator set is output at the minimum power, and when the photovoltaic power generation power, the wind power generation power and the generator power do not meet the current load demand, the difference between the photovoltaic power, the wind power generation power and the generator power and the current load demand is calculated according to the difference, and generating and outputting control parameters, sending the control parameters to a power regulation and control unit, and enabling the power regulation and control unit to automatically regulate the photovoltaic power generation power, the wind power generation power and the generator power generation power according to the current load requirement, so as to realize the intelligent complementary power supply purpose of photovoltaic power generation, wind power generation and generator set power generation.
2. In the invention, a data transmission unit adopts a PCNN mathematical model to process and transmit data, load data information of a power supply system, real-time storage electric quantity real-time information of an electric storage module, photovoltaic power generation power, wind power generation power and generator power generation information are obtained, normalization noise signal data and ideal signal data are carried out on the information to [1,2], a matrix B is established to obtain a matrix T through cyclic calculation, noise points are judged according to elements in the matrix T, filtering processing is carried out on each data point, cyclic noise reduction is carried out, output noise reduction data are subjected to inverse normalization and are transmitted, a simplified PCNN model is utilized to improve a threshold value, an algorithm suitable for data noise reduction is obtained, noise in signals is effectively filtered, characteristic information of the data can be reserved and compared with wavelet noise reduction, the method has larger signal-to-noise ratio and smaller mean square error, and avoids causing wrong evaluation and fault judgment on the power supply mode.
Drawings
FIG. 1 is a schematic block diagram of the system of the present invention;
fig. 2 is a block diagram of the power supply mode of the power supply unit of the generator of the present invention.
Detailed Description
The technical solution of the present patent will be described in further detail with reference to the following embodiments.
Example (b):
as shown in fig. 1-2, the present invention provides a technical solution: the complementary power supply system comprises a photovoltaic system, an energy storage system and a diesel generator system, and comprises a control unit, wherein the control unit is electrically connected with a photovoltaic and wind power generation system through an inversion control module, the input end of the control unit is connected with the output end of the generator power supply unit, the input end of the generator power supply unit is connected with the output end of a power generation switch control module, the power generation switch control module is connected with the output end of a mains supply switch control module, the mains supply switch control module is connected with the output end of a mains supply incoming line control module, the control unit is in two-way connection with an electricity utilization storage module, and the electricity utilization storage module is connected with a load outgoing line control module through a PCS energy storage converter.
The output end of the PCS energy storage converter is connected with the input end of the control unit, the output end of the control unit is connected with the electricity distribution unit and the intelligent monitoring unit, the input end of the intelligent monitoring unit is connected with the output ends of the generator power supply unit and the inversion control module, the output end of the intelligent monitoring unit is connected with the input end of the data transmission unit through the power management unit, the output end of the data transmission unit is connected with the input end of the power regulation and control unit, and the output end of the power regulation and control unit is connected with the input end of the control unit.
The photovoltaic and wind power generation system comprises a photovoltaic array acquisition module and a wind power generation module, wherein the output ends of the photovoltaic array acquisition module and the wind power generation module are respectively connected with the input ends of a photovoltaic controller and a wind power controller, and the output ends of the photovoltaic controller and the wind power controller are connected with the input end of an inversion control module.
The inversion control module is set as an inversion control integrated machine.
The photovoltaic controller is used for converting electric energy obtained by photovoltaic power generation into direct current electric energy.
The wind power controller is used for converting electric energy obtained by wind power generation into direct current electric energy.
The power distribution unit is used for supplying power to each power utilization device, and the commercial power incoming line control module is composed of a commercial power incoming line box and a current transformer.
The control unit comprises an EMS energy management unit, a BMS battery management module, a multifunctional instrument, a bus controller, a unit control module and a bus self-electricity utilization control module.
EMS energy management unit passes through wire and BMS battery management module, multi-functional instrument, bus controller and unit control module electric connection, unit controller and generator power supply unit electric connection, unit control module and power generation switch control module signal connection.
The intelligent monitoring unit comprises a power utilization storage monitoring module and a microgrid load monitoring module.
The microgrid load monitoring module: the method is used for monitoring the characteristic data of the power supply system in real time.
The power utilization storage monitoring module: the power consumption monitoring system is used for monitoring the real-time stored power of the power consumption storage module and judging whether the power consumption storage module has power shortage or power overload.
The power management unit comprises a photovoltaic power generation power monitoring module, a wind power generation power monitoring module and a generator set power generation power monitoring module and is used for monitoring photovoltaic power generation power, wind power generation power and generator power generation power in real time.
The power regulation and control unit is used for automatically regulating and controlling photovoltaic power generation power, wind power generation power and generator power generation power.
The generator power supply unit consists of a generator set, an engine, a battery, a base oil tank, a water tank and a water jacket heater, and the generator set comprises a generator and a current transformer.
The electrical connection relationship of the generator power supply unit in the power supply mode is as follows:
the input end of the generator set is connected with the output end of the power generation switch control module, the output end of the generator set is connected with the input end of the EMS energy management unit, the output end of the EMS energy management unit is respectively connected with the input ends of the BMS battery management module and the PCS energy storage converter, the output end of the BMS battery management module is connected with the input end of the power utilization storage module, the power utilization storage module is bidirectionally connected with the PCS energy storage converter, and the PCS energy storage converter outputs load power supply.
The power of the PCS energy storage converter is 20KW or 100 KW.
The specific implementation steps of the microgrid load monitoring module and the power regulation and control unit are as follows:
and S10, when the microgrid load changes, analyzing the multiple characteristic feedback signals according to the control unit, forming control parameters, and transmitting the control parameter signals to the power regulation and control unit.
And S11, when the photovoltaic power generation power, the wind power generation power and the generator power do not meet the current load requirement, generating and outputting control parameters according to the difference between the photovoltaic power generation power, the wind power generation power and the generator power and the current load requirement, and sending the control parameters to the power regulation and control unit.
And S12, enabling the power regulation and control unit to automatically regulate the photovoltaic power generation power, the wind power generation power and the generator power generation power according to the current load requirement, and performing power supply complementation.
The regulation and control mode of the power regulation and control unit is as follows:
and S20, monitoring the photovoltaic power generation power, the wind power generation power and the generator power generation power in real time through the power management unit, and controlling the residual alternating current power meeting the current load requirement to be led out through the PCS energy storage converter and stored in the electricity utilization storage module if the monitored photovoltaic power generation power, the wind power generation power and the generator power generation meet the current load requirement.
And S21, adjusting the photovoltaic power generation and the wind power generation to work at the highest power, reducing the power generation power of the generator set, enabling the generator set to output at the minimum power, and achieving the purpose of power supply complementation of the photovoltaic power generation, the wind power generation and the generator set power generation.
The data transmission unit adopts a PCNN mathematical model to process and transmit data, and the specific implementation steps are as follows:
(1) firstly, acquiring load data information of the power supply system, real-time storage electric quantity real-time information of an electric storage module, photovoltaic power generation power, wind power generation power and generator power generation information, normalizing noise signal data and ideal signal data of the information to [1,2], calculating an initial mean square error, and initializing network parameters.
(2) And inputting the normalized data into a text model, judging that the circulation is finished according to whether all the elements in the matrix B are 0, and obtaining a matrix T after the circulation is finished.
(3) Noise points are judged according to elements in the matrix T, and each data point is subjected to filtering processing.
(4) And (3) calculating the mean square error of each data point, comparing the mean square error with the mean square error in the step (1), if the mean square error is smaller than the mean square error in the step (1), returning to the step (2), inputting the data into the text model to continue denoising, and otherwise, outputting the previous denoising result data.
(5) And (4) performing inverse normalization on the output noise reduction data and transmitting.
The formula of the PNCC mathematical model is as follows:
F ij [n]＝S ij
in the formula: f ij [n]Representing the nth feedback input, S, of the (i, j) th neuron ij Representing an externally input stimulus signal.
Figure BDA0003646625000000091
In the formula: y is ij [n]Representing neuronal output, θ ij [n]Representing a dynamic threshold.
Figure BDA0003646625000000092
In the formula: v θ Expressed as the corresponding neuron amplitude coefficient, and α represents the corresponding neuron decay time constant.
Figure BDA0003646625000000093
Wherein, T ij [n]Representing a neuron matrix T.
Figure BDA0003646625000000094
Wherein, B ij [n]Representing the neuron matrix B.
When F is present ij [n]＞θ ij [n]When firing a pulse from a neuron, theta ij [n]Rises rapidly and then decays exponentially with time until iteration to F ij [n]Is again greater than theta ij [n]The neuron will re-fire the output pulse, cycling through S ij Under the action of the pulse generator, pulses are emitted at a certain frequency, namely the natural firing frequency of the neuron, and the corresponding firing period is as follows:
Figure BDA0003646625000000095
the firing time of the neurons is recorded in the matrix T, whether the neurons fire or not is recorded in the matrix B, after one neuron is fired and activated, the threshold value of the neuron is endowed with a large amplitude value, so that the neuron cannot be fired within a certain time, the assignment in the matrix T is the initial firing time of the neurons, and the threshold value of the neuron which is not fired and activated is exponentially attenuated.
To sum up, the following results are obtained:
monitoring photovoltaic power generation power, wind power generation power and generator power generation power in real time through a power management unit, if the monitored photovoltaic power generation power, wind power generation power and generator power meet the current load demand, controlling the residual alternating current power meeting the current load demand to be led out through a PCS energy storage converter and stored in an electricity utilization storage module, effectively storing electricity for the electricity utilization storage module to ensure that the charge and discharge of the electricity utilization storage module reach the normal value, ensuring the service life of the electricity utilization storage module, adjusting the photovoltaic power generation and the wind power generation to work at the highest power, reducing the power generation power of a generator set, enabling the generator set to output at the minimum power, and when the photovoltaic power generation power, the wind power generation power and the generator power do not meet the current load demand, according to the difference between the photovoltaic power generation power, the wind power generation power and the generator power and the current load demand, and generating and outputting control parameters, sending the control parameters to a power regulation and control unit, and enabling the power regulation and control unit to automatically regulate the photovoltaic power generation power, the wind power generation power and the generator power generation power according to the current load requirement, so as to realize the intelligent complementary power supply purpose of photovoltaic power generation, wind power generation and generator set power generation.
The method comprises the steps of performing data processing and transmission by a data transmission unit through a PCNN mathematical model to obtain load data information of a power supply system, real-time stored electric quantity real-time information of an electric storage module, photovoltaic power generation power, wind power generation power and generator power generation information, normalizing noise signal data and ideal signal data to [1,2], establishing a matrix B to obtain a matrix T through cyclic calculation, judging noise points according to elements in the matrix T, performing filtering processing on each data point, performing cyclic noise reduction, performing inverse normalization on output noise reduction data and performing transmission, improving a threshold value by utilizing a simplified PCNN model to obtain an algorithm suitable for data noise reduction, effectively filtering noise in signals, retaining characteristic information of the data, comparing with wavelet noise reduction, having a larger signal-to-noise ratio and a smaller mean square error, the power supply mode is prevented from being evaluated wrongly and judged in failure.
Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (9)

1. Complementary formula power supply system by photovoltaic, energy storage and diesel generator system constitution, including the control unit, its characterized in that: the control unit is electrically connected with a photovoltaic and wind power generation system through an inversion control module, the input end of the control unit is connected with the output end of a generator power supply unit, the input end of the generator power supply unit is connected with the output end of a power generation switch control module, the power generation switch control module is connected with the output end of a mains supply switch control module, the mains supply switch control module is connected with the output end of a mains supply incoming line control module, the control unit is bidirectionally connected with a power consumption storage module, and the power consumption storage module is connected with a load outgoing line control module through a PCS energy storage converter;
the output end of the PCS energy storage converter is connected with the input end of the control unit, the output end of the control unit is connected with the electricity distribution unit and the intelligent monitoring unit, the input end of the intelligent monitoring unit is connected with the output ends of the generator power supply unit and the inversion control module, the output end of the intelligent monitoring unit is connected with the input end of the data transmission unit through the power management unit, the output end of the data transmission unit is connected with the input end of the power regulation and control unit, and the output end of the power regulation and control unit is connected with the input end of the control unit.
2. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the photovoltaic and wind power generation system comprises a photovoltaic array acquisition module and a wind power generation module, wherein the output ends of the photovoltaic array acquisition module and the wind power generation module are respectively connected with the input ends of a photovoltaic controller and a wind controller, and the output ends of the photovoltaic controller and the wind controller are connected with the input end of an inversion control module;
the inversion control module is set as an inversion control integrated machine;
the photovoltaic controller is used for converting electric energy obtained by photovoltaic power generation into direct current electric energy;
the wind power controller is used for converting electric energy obtained by wind power generation into direct current electric energy.
3. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the power distribution unit is used for supplying power to each power utilization device, and the commercial power incoming line control module is composed of a commercial power incoming line box and a current transformer.
4. The complementary power supply system of claim 3, comprising a photovoltaic, energy storage and diesel generator system, wherein: the control unit comprises an EMS energy management unit, a BMS battery management module, a multifunctional instrument, a bus controller, a unit control module and a bus self-electricity utilization control module;
the EMS energy management unit is electrically connected with the BMS battery management module, the multifunctional instrument, the bus controller and the unit control module through wires, the unit controller is electrically connected with the generator power supply unit, and the unit control module is in signal connection with the power generation switch control module.
5. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the intelligent monitoring unit comprises a power utilization storage monitoring module and a microgrid load monitoring module;
the microgrid load monitoring module: the system is used for monitoring the characteristic data of the power supply system in real time;
the power utilization storage monitoring module: the power consumption monitoring system is used for monitoring the real-time stored power of the power consumption storage module and judging whether the power consumption storage module has power shortage or power overload.
6. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the power management unit comprises a photovoltaic power generation power monitoring module, a wind power generation power monitoring module and a generator set power generation power monitoring module and is used for monitoring photovoltaic power generation power, wind power generation power and generator power generation power in real time.
7. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the power regulation and control unit is used for automatically regulating and controlling photovoltaic power generation power, wind power generation power and generator power generation power.
8. The complementary power supply system of claim 1, comprising a photovoltaic, energy storage and diesel generator system, wherein: the generator power supply unit consists of a generator set, an engine, a battery, a base oil tank, a water tank and a water jacket heater, and the generator set comprises a generator and a current transformer.
9. The complementary power supply system of claim 8, comprising a photovoltaic, energy storage and diesel generator system, wherein: the electrical connection relationship of the generator power supply unit in the power supply mode is as follows:
the input end of the generator set is connected with the output end of the power generation switch control module, the output end of the generator set is connected with the input end of the EMS energy management unit, the output end of the EMS energy management unit is respectively connected with the input ends of the BMS battery management module and the PCS energy storage converter, the output end of the BMS battery management module is connected with the input end of the electricity utilization storage module, the electricity utilization storage module is bidirectionally connected with the PCS energy storage converter, and the PCS energy storage converter outputs load power supply.
CN202210533975.5A 2022-05-17 2022-05-17 Complementary power supply system composed of photovoltaic, energy storage and diesel generator systems Pending CN114914939A (en)

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CN116014818A (en) * 2023-03-29 2023-04-25 河北思悟新能源科技有限公司 Comprehensive energy supply management system for climate change area
CN116031955A (en) * 2023-03-31 2023-04-28 赫里欧新能源有限公司 Micro-grid type wind-solar-diesel-thermal storage intelligent complementary power supply method and system
CN116750290A (en) * 2023-08-14 2023-09-15 青岛义龙包装机械有限公司 Intelligent monitoring method for running state of bag type packaging machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116014818A (en) * 2023-03-29 2023-04-25 河北思悟新能源科技有限公司 Comprehensive energy supply management system for climate change area
CN116014818B (en) * 2023-03-29 2023-06-27 河北思悟新能源科技有限公司 Comprehensive energy supply management system for climate change area
CN116031955A (en) * 2023-03-31 2023-04-28 赫里欧新能源有限公司 Micro-grid type wind-solar-diesel-thermal storage intelligent complementary power supply method and system
CN116750290A (en) * 2023-08-14 2023-09-15 青岛义龙包装机械有限公司 Intelligent monitoring method for running state of bag type packaging machine
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