An intelligent power supply and distribution control system

Abstract

The present invention discloses an intelligent power supply and distribution control system, which relates to the field of power supply and distribution technology, including a new energy power supply module, a time module, a database, a first controller, a second controller, a backup energy storage module, an environment module, an early warning controller and a power distribution module. The environment module monitors the weather signal of the new energy power supply module in real time in the next week. When the weather signal of the next week is cloudy during the daytime for more than 30% of the time, an environmental early warning signal will be sent to the second controller. The second controller will regulate the power of the traditional power supply module in advance to prepare power distribution for the power distribution module, thereby achieving the effect of early prediction and early scheduling. A backup energy storage module is set, and at the same time, the traditional power supply module is combined to improve the stability of power supply and distribution of the intelligent power supply and distribution control system, so as to ensure the stable operation of the power grid.

Description

Technical Field

[0001] The present invention relates to the technical field of power supply and distribution, and in particular to an intelligent power supply and distribution control system. Background Art

[0002] As a new type of power management system that integrates modern information technology, power automation technology and intelligent control technology, the intelligent power supply and distribution control system can optimize power distribution, reduce unnecessary power loss and achieve high efficiency and energy saving by real-time monitoring of the load of the power system. This helps to reduce the load pressure of the power grid and improve the overall energy utilization efficiency.

[0003] At the same time, with the rapid development of distributed new energy (such as solar energy, wind energy, etc.), the grid connection of a large number of new energy equipment has put forward higher requirements for the intelligent power supply and distribution control of the power grid. The instability and intermittency of new energy power generation have brought uncertainty to the operation of the power grid. For example, solar power generation cannot generate electricity on cloudy days or at night, and wind power generation has reduced efficiency when there is no wind or the wind speed is too low. This uncertainty will lead to fluctuations and instability in the power supply and distribution of the intelligent power supply and distribution control system, posing a challenge to the stability and reliability of the power grid. Summary of the invention

[0004] In view of the above situation, the present invention can improve the stability of power supply and distribution of the intelligent power supply and distribution control system, and has stronger prediction and scheduling capabilities. At the same time, it regulates the traditional power supply module to boost the pressure of the new energy power supply module to ensure that the new energy power supply module supplies power normally, thereby ensuring the stable operation of the power grid.

[0005] The technical solution is an intelligent power supply and distribution control system, including a new energy power supply module, a time module, and a database. It is characterized in that it also includes a first controller, a second controller, a backup energy storage module, an environment module, an early warning controller, and a power distribution module. The specific operation of this system is as follows;

[0006] S1, the new energy power supply module is powered by distributed new energy solar energy or wind energy, and sends a power supply voltage value UA signal to the first regulator; the time module is a time signal T for the first regulator to receive the power supply voltage value UA signal;

[0007] S2, the first regulator compares the received power supply voltage value UA signal with the relevant data in the database to calculate the voltage deviation value UC signal, and sends the detected deviation value UC signal and the power supply voltage status of the new energy power supply module to the second regulator. The voltage status is divided into three states: normal, overvoltage, and undervoltage;

[0008] S3, the environmental module monitors the weather signal of the new energy power supply module in real time in the next week, and sends an environmental warning signal to the second regulator when the weather signal of the next week is cloudy during the daytime for more than 30% of the time;

[0009] S4, when the second regulator receives the undervoltage state of the power supply voltage of the new energy power supply module and the environmental warning signal at the same time, the second regulator adjusts the traditional power supply module in real time according to the deviation value UC signal to boost the voltage of the new energy power supply module to the normal voltage, and calculates in advance the maximum distribution quota M1 consumed by the traditional power supply module for boosting the voltage of the new energy power supply module according to the weather signal in the next week, and calculates the maximum distribution quota M2 of the traditional power supply module for supplying power to the distribution module in the next week, and then sends the pre-allocated power quota M=M1+M2 to the warning regulator, and the warning regulator adjusts the power of the traditional power supply module in advance to prepare for power distribution to the distribution module.

[0010] Furthermore, the first regulator extracts the corresponding power supply rated voltage value UA1 in the database, and then calculates the voltage deviation value UC, UC=(UA-UA1) / UA1, UC is less than +7% and greater than -10%, indicating that the power supply voltage of the new energy power supply module is normal, otherwise, UC is greater than +7%, indicating that the power supply voltage of the new energy power supply module is in an overvoltage state, and UC is less than -10%, indicating that the power supply voltage of the new energy power supply module is in an undervoltage state.

[0011] Further, when the second regulator receives that the power supply voltage state of the new energy power supply module is in a normal state, it determines whether it is a peak power consumption stage according to the time signal T. In the non-peak power consumption stage, the second regulator regulates the new energy power supply module to supply power to the distribution module and charges the backup energy storage module at the same time. On the contrary, the new energy power supply module normally supplies power to the distribution module; when the second regulator receives that the power supply voltage of the new energy power supply module is in an undervoltage state, it regulates the backup energy storage module and the new energy power supply module to supply power to the distribution module together;

[0012] When the power supply voltage received by the second regulator from the new energy power supply module is in an overvoltage state, the second regulator turns off the new energy power supply module, regulates the traditional power supply module to supply and distribute power, and sends an alarm signal to the early warning regulator.

[0013] Furthermore, when the second regulator receives the environmental warning signal, the specific working steps are as follows:

[0014] a. First, take the time signal T as the starting point to retrieve the weather signal for the next week;

[0015] b. According to the weather signal of the next week and the power generation parameters of the distributed new energy solar energy or wind energy equipment, calculate the amount of power that will be less generated by the new energy solar energy or wind energy equipment in the next week, that is, the maximum power distribution quota M2 of the traditional power supply module to the distribution module in the next week;

[0016] C. The control and early warning controller regulates the power of the traditional power supply module in advance to prepare power distribution for the distribution module, and plans in advance to prepare for the distribution module. The maximum power distribution quota of the original traditional power supply module to supply power to the distribution module is increased by M2.

[0017] Furthermore, the second regulator controls the traditional power supply module in real time to boost the voltage of the new energy power supply module to a normal voltage according to the deviation value UC signal, and then calculates the power consumption of the traditional power supply module for boosting the new energy power supply module according to the parameters of the new energy solar or wind power equipment, and then calculates in advance the duration of undervoltage of the new energy power supply module in the next week according to the weather signal in the next week, and finally obtains the maximum distribution quota M1 consumed by the traditional power supply module for boosting the new energy power supply module in the next week.

[0018] Due to the adoption of the above technical solution, the present invention has the following advantages compared with the prior art:

[0019] 1. When the second regulator simultaneously receives the undervoltage state of the power supply voltage of the new energy power supply module and the environmental warning signal, it calculates in advance the maximum power distribution quota M1 consumed by the traditional power supply module for boosting the new energy power supply module according to the weather signal in the next week, and calculates the maximum power distribution quota M2 consumed by the traditional power supply module for supplying power to the distribution module in the next week, and then sends the pre-allocated power quota M=M1+M2 to the early warning regulator, and the early warning regulator adjusts the power of the traditional power supply module in advance to prepare for power distribution for the distribution module, thereby achieving the effect of early prediction and early scheduling.

[0020] 2. Due to the instability of power supply from the new energy power supply module, the second regulator controls the traditional power supply module in real time according to the deviation value UC signal to boost the voltage of the new energy power supply module to normal voltage, so as to ensure normal power supply of the new energy power supply module and prevent long-term undervoltage power supply from damaging distributed new energy solar or wind power equipment, thereby improving the stability of power supply and distribution of the intelligent power supply and distribution control system to ensure the stable operation of the power grid. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a module diagram of an intelligent power supply and distribution control system of the present invention. DETAILED DESCRIPTION

[0022] The above and other technical contents, features and effects of the present invention are described in detail below with reference to the attached Figure 1The detailed description of the embodiments will clearly show that the structural contents mentioned in the following embodiments are all based on the drawings in the specification.

[0023] In order to improve the stability of power supply and distribution of the intelligent power supply and distribution control system, and to have stronger prediction and dispatching capabilities to ensure the stable operation of the power grid, distributed new energy solar energy or wind energy is integrated into the power grid on the basis of the traditional power supply and distribution system to form a microgrid construction, facing the end of the large power grid, as follows.

[0024] An intelligent power supply and distribution control system includes a new energy power supply module, a time module, and a database. It is characterized in that it also includes a first controller, a second controller, a backup energy storage module, an environment module, an early warning controller, and a power distribution module. The specific operation of this system is as follows;

[0025] S1, the new energy power supply module is powered by distributed new energy solar energy or wind energy, and sends a power supply voltage value UA signal to the first regulator; the time module is a time signal T for the first regulator to receive the power supply voltage value UA signal;

[0026] S2, the first regulator compares the received power supply voltage value UA signal with the relevant data in the database to calculate the voltage deviation value UC signal, and sends the detected deviation value UC signal and the power supply voltage status of the new energy power supply module to the second regulator. The voltage status is divided into three states: normal, overvoltage, and undervoltage;

[0027] S3, the environmental module monitors the weather signal of the new energy power supply module in real time in the next week, and sends an environmental warning signal to the second regulator when the weather signal of the next week is cloudy during the daytime for more than 30% of the time;

[0028] S4, when the second regulator receives the undervoltage state of the power supply voltage of the new energy power supply module and the environmental warning signal at the same time, the second regulator adjusts the traditional power supply module in real time according to the deviation value UC signal to boost the voltage of the new energy power supply module to the normal voltage, and calculates in advance the maximum distribution quota M1 consumed by the traditional power supply module for boosting the voltage of the new energy power supply module according to the weather signal in the next week, and calculates the maximum distribution quota M2 of the traditional power supply module for supplying power to the distribution module in the next week, and then sends the pre-allocated power quota M=M1+M2 to the warning regulator, and the warning regulator adjusts the power of the traditional power supply module in advance to prepare for power distribution to the distribution module.

[0029] The first regulator extracts the corresponding power supply rated voltage value UA1 in the database, and then calculates the voltage deviation value UC, UC=(UA-UA1) / UA1, UC is less than +7% and greater than -10%, indicating that the power supply voltage of the new energy power supply module is normal. Conversely, UC is greater than +7%, indicating that the power supply voltage of the new energy power supply module is in an overvoltage state, and UC is less than -10%, indicating that the power supply voltage of the new energy power supply module is in an undervoltage state.

[0030] When the second regulator receives that the power supply voltage state of the new energy power supply module is in a normal state, it determines whether it is a peak power consumption stage according to the time signal T. In the non-peak power consumption stage, the second regulator regulates the new energy power supply module to supply power to the distribution module and charges the backup energy storage module at the same time. On the contrary, the new energy power supply module normally supplies power to the distribution module; when the second regulator receives that the power supply voltage of the new energy power supply module is in an undervoltage state, it regulates the backup energy storage module and the new energy power supply module to supply power to the distribution module together;

[0031] When the power supply voltage received by the second regulator from the new energy power supply module is in an overvoltage state, the second regulator turns off the new energy power supply module, regulates the traditional power supply module to supply and distribute power, and sends an alarm signal to the early warning regulator.

[0032] When the second controller receives the environmental warning signal, the specific working steps are as follows:

[0033] a. First, take the time signal T as the starting point to retrieve the weather signal for the next week;

[0034] b. According to the weather signal of the next week and the power generation parameters of the distributed new energy solar energy or wind energy equipment, calculate the amount of power that will be less generated by the new energy solar energy or wind energy equipment in the next week, that is, the maximum power distribution quota M2 of the traditional power supply module to the distribution module in the next week;

[0035] C. The control and early warning controller regulates the power of the traditional power supply module in advance to prepare power distribution for the distribution module, and plans in advance to prepare for the distribution module. The maximum power distribution quota of the original traditional power supply module to supply power to the distribution module is increased by M2.

[0036] The second regulator controls the traditional power supply module in real time to boost the voltage of the new energy power supply module to a normal voltage according to the deviation value UC signal, and then calculates the power consumption of the traditional power supply module for boosting the new energy power supply module according to the parameters of the new energy solar or wind power equipment, and then calculates in advance the duration of undervoltage of the new energy power supply module in the next week according to the weather signal in the next week, and finally obtains the maximum distribution quota M1 consumed by the traditional power supply module for boosting the new energy power supply module in the next week.

[0037] When the second controller receives the environmental warning signal, it sends a first alarm signal to the warning controller.

[0038] The early warning controller receives the first alarm signal, sends an early warning signal to the distribution area of ​​the corresponding distribution module, and there is a risk of power outage. At the same time, it regulates the power of the traditional power supply module to supply power to the distribution module until the second regulator receives the power supply voltage of the new energy power supply module as normal; the early warning controller receives the second alarm signal, and sends an early warning signal to the relevant personnel of the new energy power supply module for maintenance until the second regulator receives the power supply voltage of the new energy power supply module as normal. The second regulator regulates the new energy power supply module and / or the traditional power supply module to supply power to the distribution module, with the new energy power supply module as the main one and the traditional power supply module as the backup.

[0039] When the conventional power supply module supplies power, the backup energy storage module does not work.

[0040] When the present invention is used specifically, on the basis of the traditional power supply and distribution system, distributed new energy solar energy or wind energy is integrated into the power grid to form a microgrid construction, facing the end of the large power grid, including a new energy power supply module, a time module, a database, and also includes a first regulator, a second regulator, a backup energy storage module, an environmental module, an early warning regulator and a power distribution module. The new energy power supply module supplies power to the distributed new energy solar energy or wind energy, and sends the power supply voltage value UA signal to the first regulator; the time module is the time signal T for the first regulator to receive the power supply voltage value UA signal;

[0041] The first regulator compares the received power supply voltage value UA signal with the relevant data in the database to calculate the voltage deviation value UC signal, and sends the detected deviation value UC signal and the power supply voltage status of the new energy power supply module to the second regulator. The voltage status is divided into three states: normal, overvoltage, and undervoltage;

[0042] The environmental module monitors the weather signal of the new energy power supply module in real time in the next week. When the weather signal of the next week is cloudy during the daytime for more than 30% of the time, an environmental warning signal is sent to the second controller;

[0043] When the second regulator simultaneously receives the undervoltage state of the power supply voltage of the new energy power supply module and the environmental warning signal, the second regulator adjusts the traditional power supply module in real time according to the deviation value UC signal to boost the voltage of the new energy power supply module to a normal voltage, and at the same time calculates in advance the maximum distribution quota M1 consumed by the traditional power supply module to boost the voltage of the new energy power supply module according to the weather signal for the next week, and calculates the maximum distribution quota M2 of the traditional power supply module to supply power to the distribution module in the next week, and then sends the pre-allocated power quota M=M1+M2 to the warning regulator, and the warning regulator adjusts the power of the traditional power supply module in advance to prepare for power distribution to the distribution module.

[0044] Using the above method, the early warning controller regulates the power of the traditional power supply module in advance to prepare for power distribution to the distribution module, thereby achieving the effect of advance prediction and advance scheduling. At the same time, the traditional power supply module is regulated to boost the voltage of the new energy power supply module to normal voltage to ensure normal power supply of the new energy power supply module, prevent long-term undervoltage power supply from damaging distributed new energy solar or wind power equipment, and improve the stability of power supply and distribution of the intelligent power supply and distribution control system to ensure the stable operation of the power grid.

[0045] The above is a further detailed description of the present invention in combination with a specific implementation method, and it cannot be determined that the specific implementation of the present invention is limited to this; for technical personnel in the technical field to which the present invention belongs and related technical fields, based on the technical solution of the present invention, the expansion and replacement of operating methods and data should all fall within the protection scope of the present invention.

Claims

1. An intelligent power supply and distribution control system, including a new energy power supply module, a time module, and a database, characterized in that: It also includes a first regulator, a second regulator, a backup energy storage module, an environmental module, an early warning regulator and a power distribution module. The specific operation of this system is as follows; S1, the new energy power supply module is powered by distributed new energy solar energy or wind energy, and sends a power supply voltage value UA signal to the first regulator; the time module is a time signal T for the first regulator to receive the power supply voltage value UA signal; S2, the first regulator compares the received power supply voltage value UA signal with the relevant data in the database to calculate the voltage deviation value UC signal, and sends the detected deviation value UC signal and the power supply voltage status of the new energy power supply module to the second regulator. The voltage status is divided into three states: normal, overvoltage, and undervoltage; S3, the environmental module monitors the weather signal of the new energy power supply module in real time in the next week, and sends an environmental warning signal to the second regulator when the weather signal of the next week is cloudy during the daytime for more than 30% of the time; S4, when the second regulator receives the undervoltage state of the power supply voltage of the new energy power supply module and the environmental warning signal at the same time, the second regulator adjusts the traditional power supply module in real time according to the deviation value UC signal to boost the voltage of the new energy power supply module to the normal voltage, and calculates in advance the maximum distribution quota M1 consumed by the traditional power supply module for boosting the voltage of the new energy power supply module according to the weather signal in the next week, and calculates the maximum distribution quota M2 of the traditional power supply module for supplying power to the distribution module in the next week, and then sends the pre-allocated power quota M=M1+M2 to the warning regulator, and the warning regulator adjusts the power of the traditional power supply module in advance to prepare for power distribution to the distribution module.

2. An intelligent power supply and distribution control system as claimed in claim 1, characterized in that: The first regulator extracts the corresponding power supply rated voltage value UA1 in the database, and then calculates the voltage deviation value UC, UC=(UA-UA1) / UA1, UC is less than +7% and greater than -10%, indicating that the power supply voltage of the new energy power supply module is normal. Conversely, UC is greater than +7%, indicating that the power supply voltage of the new energy power supply module is in an overvoltage state, and UC is less than -10%, indicating that the power supply voltage of the new energy power supply module is in an undervoltage state.

3. The intelligent power supply and distribution control system according to claim 1, characterized in that: When the second regulator receives that the power supply voltage state of the new energy power supply module is in a normal state, it determines whether it is a peak power consumption stage according to the time signal T. In the non-peak power consumption stage, the second regulator regulates the new energy power supply module to supply power to the distribution module and charges the backup energy storage module at the same time. On the contrary, the new energy power supply module normally supplies power to the distribution module; when the second regulator receives that the power supply voltage of the new energy power supply module is in an undervoltage state, it regulates the backup energy storage module and the new energy power supply module to supply power to the distribution module together; When the power supply voltage received by the second regulator from the new energy power supply module is in an overvoltage state, the second regulator turns off the new energy power supply module, regulates the traditional power supply module to supply and distribute power, and sends an alarm signal to the early warning regulator.

4. The intelligent power supply and distribution control system according to claim 1, characterized in that: When the second controller receives the environmental warning signal, the specific working steps are as follows: a. First, take the time signal T as the starting point to retrieve the weather signal for the next week; b. According to the weather signal of the next week and the power generation parameters of the distributed new energy solar energy or wind energy equipment, calculate the amount of power that will be less generated by the new energy solar energy or wind energy equipment in the next week, that is, the maximum power distribution quota M2 of the traditional power supply module to the distribution module in the next week; C. The control and early warning controller regulates the power of the traditional power supply module in advance to prepare power distribution for the distribution module, and plans in advance to prepare for the distribution module. The maximum power distribution quota of the original traditional power supply module to supply power to the distribution module is increased by M2.

5. The intelligent power supply and distribution control system as claimed in claim 2, characterized in that: The second regulator controls the traditional power supply module in real time to boost the voltage of the new energy power supply module to a normal voltage according to the deviation value UC signal, and then calculates the power consumption of the traditional power supply module for boosting the new energy power supply module according to the parameters of the new energy solar or wind power equipment, and then calculates in advance the duration of undervoltage of the new energy power supply module in the next week according to the weather signal in the next week, and finally obtains the maximum distribution quota M1 consumed by the traditional power supply module for boosting the new energy power supply module in the next week.

6. The intelligent power supply and distribution control system as claimed in claim 4, characterized in that: When the second controller receives the environmental warning signal, it sends a first alarm signal to the warning controller.

7. The intelligent power supply and distribution control system according to claim 1, characterized in that: The early warning controller receives the first alarm signal, sends an early warning signal to the power distribution area of ​​the corresponding power distribution module, and at the same time adjusts the power of the traditional power supply module to supply power to the power distribution module until the second controller receives the power supply voltage of the new energy power supply module as normal; The early warning controller receives the second alarm signal and sends the early warning signal to the relevant personnel of the new energy power supply module for maintenance until the second controller receives the power supply voltage of the new energy power supply module as normal.

8. The intelligent power supply and distribution control system according to claim 1, characterized in that: The second regulator regulates the new energy power supply module and / or the traditional power supply module to supply power to the distribution module, with the new energy power supply module as the main one and the traditional power supply module as the backup.

9. An intelligent power supply and distribution control system as claimed in any one of claims 1 to 8, characterized in that: When the conventional power supply module supplies power, the backup energy storage module does not work.

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