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CN109510534B - Double-fed wind power generation system with energy storage function - Google Patents

Double-fed wind power generation system with energy storage function Download PDF

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Publication number
CN109510534B
CN109510534B CN201811520444.2A CN201811520444A CN109510534B CN 109510534 B CN109510534 B CN 109510534B CN 201811520444 A CN201811520444 A CN 201811520444A CN 109510534 B CN109510534 B CN 109510534B
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diode
module
energy storage
wind power
cpu
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CN109510534A (en
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张军利
张格丽
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Xuchang University
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Xuchang University
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    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/007—Control circuits for doubly fed generators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/25—Wind motors characterised by the driven apparatus the apparatus being an electrical generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P9/00—Arrangements for controlling electric generators for the purpose of obtaining a desired output
    • H02P9/04—Control effected upon non-electric prime mover and dependent upon electric output value of the generator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P2101/00—Special adaptation of control arrangements for generators
    • H02P2101/15—Special adaptation of control arrangements for generators for wind-driven turbines
    • 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
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Eletrric Generators (AREA)

Abstract

本发明公开了一种带储能的双馈风力发电系统，包括风力发电机组、整流模块、储能模块、逆变模块、CPU和反馈调节模块，所述风力发电机组的电压输出端连接整流模块的电压输入端，整流模块的电压输出端连接储能模块，储能模块还分别连接直流输出控制模块和逆变模块，直流输出控制模块和逆变模块均连接负载，整流模块还连接CPU，本发明带储能的双馈风力发电系统带储能的双馈风力发电系统能够对风力发电线路进行全程监控，通过采集输出电压的情况可以了解系统的运行状态，并且能够对风力发电机进行反馈调节，有效确保系统输出电压的稳定性。

Figure 201811520444

The invention discloses a doubly-fed wind power generation system with energy storage, comprising a wind power generator set, a rectifier module, an energy storage module, an inverter module, a CPU and a feedback adjustment module, wherein the voltage output end of the wind power generator set is connected to the rectifier module The voltage input terminal of the rectifier module is connected to the energy storage module, and the energy storage module is also connected to the DC output control module and the inverter module respectively. Both the DC output control module and the inverter module are connected to the load, and the rectifier module is also connected to the CPU. The invention of the double-fed wind power generation system with energy storage The double-fed wind power generation system with energy storage can monitor the whole process of the wind power generation line. By collecting the output voltage, the operating status of the system can be known, and the wind turbine can be feedback adjusted. , effectively ensure the stability of the system output voltage.

Figure 201811520444

Description

Double-fed wind power generation system with energy storage function
Technical Field
The invention relates to the technical field of electric power, in particular to a double-fed wind power generation system with energy storage.
Background
Wind power generation, as a clean, abundant and renewable energy source, is increasingly gaining wide attention all over the world, and particularly, has been rapidly developed in recent years. When wind flows through the blades of the wind turbine to drive the wind turbine to rotate, the wind energy is converted into mechanical energy, the wind turbine drives the rotor of the generator to rotate, the generator supplies power to the power grid, and the mechanical energy is converted into electric energy. Compared with the traditional constant-speed constant-frequency wind power generation system, the variable-speed constant-frequency wind power generation system adopting the doubly-fed wound asynchronous generator has the remarkable advantages that: the wind energy utilization coefficient is high, energy fluctuation generated by sudden change of wind speed can be absorbed, overlarge torque and stress borne by the main shaft and the transmission mechanism are avoided, active power and reactive power can be freely adjusted, the power factor of the system is improved, and convenient adjustment of frequency and voltage can be realized. At present, the double-fed wind power generation technology is one of the most widely applied wind power generation technologies.
The existing wind power generation control system is relatively backward, cannot meet the requirement of household miniaturization, and cannot monitor and manage the power generation process.
Disclosure of Invention
The invention aims to provide a double-fed wind power generation system with energy storage to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a double-fed wind power generation system of area energy storage, includes wind generating set, rectifier module, energy storage module, contravariant module, CPU and feedback regulation module, wind generating set's voltage output end connects rectifier module's voltage input end, and rectifier module's voltage output end connects energy storage module, and energy storage module still connects direct current output control module and contravariant module respectively, and direct current output control module and contravariant module all connect the load, and rectifier module still connects CPU, and CPU is still connected to direct current output control module's output, and CPU still connects CPU, and CPU still connects wind generating set through feedback regulation module.
As a further technical scheme of the invention: and the CPU is also connected with a keyboard for actively inputting control instructions.
As a further technical scheme of the invention: and the CPU is also connected with a display for displaying various data information.
As a further technical scheme of the invention: and the CPU is also connected with an alarm for sending out a prompt signal when an abnormal condition occurs.
As a further technical scheme of the invention: the direct current output control module comprises a resistor R1, a potentiometer RP1, a triode V1 and a relay J, one end of the resistor R1 is connected with the relay J, a contact J-1 of the relay J and the anode of a storage battery E, the other end of the resistor R1 is connected with a potentiometer RP1, the other end of the potentiometer RP1 is connected with a resistor R2, the sliding end of the potentiometer RP1 is connected with the cathode of a diode D1 and the base of the triode V1, the emitter of the triode V1 is connected with the anode of a diode D2, the collector of the triode V1 is connected with the other end of the relay J, the anode of the diode D1 is connected with a resistor R3 and a load RL, the cathode of the diode D2 is connected with the other end of the resistor R2, the other end of the resistor R3, a capacitor C1 and the cathode of the storage battery E, and the other end of the contact J-1 of the relay J is connected with the other end of the load RL and the other end of the capacitor C1.
As a further technical scheme of the invention: the rectifying module comprises diodes D3-D8, the anode of a diode D3 is connected with the cathode of a diode D4 and the pin 2 of an input end, the anode of a diode D6 is connected with the cathode of a diode D7 and the pin 3 of the input end, the anode of a diode D7 is connected with the cathode of a diode D8 and the pin 1 of the input end, the cathode of a diode D3 is connected with the cathode of a diode D5, the cathode of a diode D7, a capacitor C2 and the pin 4 of the output end, and the anode of a diode D4 is connected with the anode of a diode D8, the anode of a diode D6, the other end of the capacitor C2 and the pin 5 of the output end.
As a further technical scheme of the invention: the CPU is an AT89C52 singlechip.
Compared with the prior art, the invention has the beneficial effects that: the double-fed wind power generation system with energy storage can monitor the whole process of a wind power generation circuit, know the running state of the system by acquiring the output voltage condition, perform feedback regulation on the wind power generator and effectively ensure the stability of the output voltage of the system.
Drawings
Fig. 1 is an overall schematic view of the present invention.
Fig. 2 is a circuit diagram of the dc output control module.
Fig. 3 is a circuit diagram of a rectifier module.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1: referring to fig. 1-3, a double-fed wind power generation system with energy storage includes a wind power generator set for wind-electricity conversion, a rectification module for three-phase ac-dc voltage conversion, an energy storage module for storing electric energy for use at any time, an inversion module for meeting the power supply requirement of an ac load, a CPU for comprehensive signal processing, and a feedback regulation module for automatic regulation, wherein a voltage output terminal of the wind power generator set is connected to a voltage input terminal of the rectification module, a voltage output terminal of the rectification module is connected to the energy storage module, the energy storage module is further connected to a dc output control module and the inversion module respectively, both the dc output control module and the inversion module are connected to a load, and the voltage output by the wind power generator set can meet the use requirements of the dc load and the ac load through the above processes, and the rectification module is also connected to the CPU, the output end of the direct current output control module is also connected with the CPU, the output end of the inversion module is also connected with the CPU, and the CPU is also connected with the wind generating set through the feedback regulation module. Therefore, the CPU can collect the output voltage of the rectifier module so as to judge the running state of the wind generating set, the output voltage of the wind generating set is automatically stabilized through the adjusting function of the feedback adjusting module, the feedback adjusting module adopts a PWM control chip, and the CPU is also connected with a keyboard for actively inputting control instructions, a display for displaying various data information and an alarm for sending out prompt signals when abnormal conditions occur.
Embodiment 2, based on embodiment 1, the dc output control module of the present design includes a resistor R1, a potentiometer RP1, a transistor V1, and a relay J, one end of the resistor R1 is connected to the relay J, the other end of the resistor R1 is connected with a potentiometer RP1, the other end of the potentiometer RP1 is connected with a resistor R2, the sliding end of the potentiometer RP1 is connected with the cathode of a diode D1 and the base of a triode V1, the emitter of the triode V1 is connected with the anode of the diode D2, the collector of the triode V1 is connected with the other end of the relay J, the anode of the diode D1 is connected with a resistor R3 and a load RL, the cathode of the diode D2 is connected with the other end of a resistor R2, the other end of the resistor R3, a capacitor C1 and the cathode of the battery E, and the other end of the contact J-1 of the relay J is connected with the other end of the load RL and the other end of the capacitor C1. As shown in fig. 2, the resistor R1, the potentiometer RP1 and the resistor R2 form a group of voltage detection units, the working state of the relay J is changed by the state of the transistor V1, when the output voltage of the storage battery E is high enough, the voltage of the sliding end of the potentiometer RP1 meets the conduction condition of the triode V1, so that the triode V1 is conducted, the relay J is electrified, the load RL is electrified, when the output voltage of the storage battery E is insufficient, the triode V1 is cut off due to the reduction of the base voltage, the relay J is disconnected, the load RL loses the electricity, the resistor R3, the capacitor C1 and the diode D1 form an anti-shake circuit, when the voltage of the storage battery E is near a critical point, because the voltage at the two ends of the capacitor C1 can not change suddenly, the conduction of the triode V1 can be maintained in a short time through the load RL and the diode D1, and the jitter generated when the voltage of the storage battery E is near a critical point is avoided.
The rectifying module comprises diodes D3-D8, the anode of a diode D3 is connected with the cathode of a diode D4 and the pin 2 at the input end, the anode of a diode D6 is connected with the cathode of a diode D7 and the pin 3 at the input end, the anode of a diode D7 is connected with the cathode of a diode D8 and the pin 1 at the input end, the cathode of a diode D3 is connected with the cathode of a diode D5, the cathode of a diode D7, a capacitor C2 and the pin 4 at the output end, and the anode of a diode D4 is connected with the anode of a diode D8, the anode of a diode D6, the other end of the capacitor C2 and the pin 5 at the output end, so that the conversion from three-phase alternating current to direct current voltage can be completed as shown in FIG. 3.
The present invention may be embodied in other specific forms without departing from its spirit or essential characteristics. For example, the resistive and capacitive elements described in the specific embodiments may be one element or a plurality of elements connected in series or in parallel, without departing from the basic spirit of the present invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims (6)

1.一种带储能的双馈风力发电系统，包括风力发电机组、整流模块、储能模块、逆变模块、CPU和反馈调节模块，其特征在于，所述风力发电机组的电压输出端连接整流模块的电压输入端，整流模块的电压输出端连接储能模块，储能模块还分别连接直流输出控制模块和逆变模块，直流输出控制模块和逆变模块均连接负载，整流模块还连接CPU，直流输出控制模块的输出端还连接CPU，逆变模块的输出端还连接CPU，CPU还通过反馈调节模块连接风力发电机组，所述直流输出控制模块包括电阻R1、电位器RP1、三极管V1和继电器J，电阻R1的一端连接继电器J、继电器J的触点J-1和蓄电池E的正极，电阻R1的另一端连接电位器RP1，电位器RP1的另一端连接电阻R2，电位器RP1的滑动端连接二极管D1的负极和三极管V1的基极，三极管V1的发射极连接二极管D2的正极，三极管V1的集电极连接继电器J的另一端，二极管D1的正极连接电阻R3和负载RL，二极管D2的负极连接电阻R2的另一端、电阻R3的另一端、电容C1和蓄电池E的负极，继电器J的触点J-1的另一端连接负载RL的另一端和电容C1的另一端。1. a doubly-fed wind power generation system with energy storage, comprising a wind turbine generator set, a rectifier module, an energy storage module, an inverter module, a CPU and a feedback adjustment module, it is characterized in that, the voltage output end of the wind turbine generator set is connected The voltage input terminal of the rectifier module and the voltage output terminal of the rectifier module are connected to the energy storage module, and the energy storage module is also connected to the DC output control module and the inverter module respectively. Both the DC output control module and the inverter module are connected to the load, and the rectifier module is also connected to the CPU. , the output end of the DC output control module is also connected to the CPU, the output end of the inverter module is also connected to the CPU, the CPU is also connected to the wind turbine through the feedback adjustment module, and the DC output control module includes a resistor R1, potentiometer RP1, triode V1 and Relay J, one end of the resistor R1 is connected to the relay J, the contact J-1 of the relay J and the positive electrode of the battery E, the other end of the resistor R1 is connected to the potentiometer RP1, the other end of the potentiometer RP1 is connected to the resistor R2, the sliding of the potentiometer RP1 The terminal is connected to the cathode of the diode D1 and the base of the transistor V1, the emitter of the transistor V1 is connected to the anode of the diode D2, the collector of the transistor V1 is connected to the other end of the relay J, the anode of the diode D1 is connected to the resistor R3 and the load RL, and the diode D2 The negative electrode is connected to the other end of the resistor R2, the other end of the resistor R3, the capacitor C1 and the negative electrode of the battery E, and the other end of the contact J-1 of the relay J is connected to the other end of the load RL and the other end of the capacitor C1. 2.根据权利要求1所述的一种带储能的双馈风力发电系统，其特征在于，所述CPU上还连接有用于主动输入控制指令的键盘。2 . The doubly-fed wind power generation system with energy storage according to claim 1 , wherein a keyboard for actively inputting control instructions is also connected to the CPU. 3 . 3.根据权利要求1所述的一种带储能的双馈风力发电系统，其特征在于，所述CPU上还连接有用于显示各项数据信息的显示器。3 . The doubly-fed wind power generation system with energy storage according to claim 1 , wherein the CPU is further connected with a display for displaying various data information. 4 . 4.根据权利要求1-3任一所述的一种带储能的双馈风力发电系统，其特征在于，所述CPU上还连接有用于在出现异常情况时发出提示信号的报警器。4. The doubly-fed wind power generation system with energy storage according to any one of claims 1-3, characterized in that, an alarm for sending out a prompt signal when an abnormal situation occurs is also connected to the CPU. 5.根据权利要求1所述的一种带储能的双馈风力发电系统，其特征在于，所述整流模块包括二极管D3-D8，二极管D3的正极连接二极管D4的负极和输入端2脚，二极管D6的正极连接二极管D7的负极和输入端3脚，二极管D7的正极连接二极管D8的负极和输入端1脚，二极管D3的负极连接二极管D5的负极、二极管D7的负极、电容C2和输出端4脚，二极管D4的正极连接二极管D8的正极、二极管D6的正极、电容C2的另一端和输出端5脚。5. The doubly-fed wind power generation system with energy storage according to claim 1, wherein the rectifier module comprises diodes D3-D8, and the anode of the diode D3 is connected to the cathode of the diode D4 and the input end 2 feet, The anode of diode D6 is connected to the cathode of diode D7 and input terminal 3, the anode of diode D7 is connected to the cathode of diode D8 and input terminal 1, the cathode of diode D3 is connected to the cathode of diode D5, the cathode of diode D7, capacitor C2 and the output terminal 4 feet, the anode of diode D4 is connected to the anode of diode D8, the anode of diode D6, the other end of capacitor C2 and the output terminal 5 feet. 6.根据权利要求1所述的一种带储能的双馈风力发电系统，其特征在于，所述CPU为AT89C52单片机。6 . The doubly-fed wind power generation system with energy storage according to claim 1 , wherein the CPU is an AT89C52 single-chip microcomputer. 7 .
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