TWM474292U - Composite management system for power saving - Google Patents

Description

Compound power supply section cost management system

This creation is about a hybrid power supply section cost management system, especially a contracted capacity management system that integrates utility and renewable energy generator sets, energy storage modules, and individual replenishment of three-phase loads.

The contract capacity is the instantaneous maximum power value signed by the power company for the stable load power consumption. If the user uses the instantaneous maximum power beyond the contract capacity, the power company will impose a fine on the user. In order to avoid the excess of contract capacity. Previously, people have developed control systems to avoid this situation. For example, if a power meter is installed in front of the meter and the instantaneous maximum power is close to the contract value, the load is sequentially turned off/down in a predetermined order. Wait until the load demand drops, then resume the load according to the order of the start. In addition to installing the power meter, the system needs to install the sensors on each controlled load end to perform the switch control required for power saving control, which is not convenient for the user, such as turning off the air conditioner at high temperature. It will cause discomfort.

The other type is a commercially available energy recovery system (ERS), which can recharge the power consumed by the load resistor through the power recovery circuit to the user's power circuit, allowing the load in the loop to be used preferentially, reducing the power. The company's electricity demand, the loss of energy is effectively recycled and reused, significantly reducing the cost of electricity. And the energy recovery system will only be the original The power consumption consumed in the load is not controlled by the feedback itself, and it is impossible to determine whether to save power and charge according to the condition of the load.

The third type is to use a programmable controller to control the generator to generate a load exceeding the approximate power capacity to avoid exceeding the contracted power consumption. The power supply hybrid system is controlled by a PLC (Programmable Logic Controller). The generator provides power for use in the load to control the power capacity. Due to the variable load power, the performance coefficient of the power supply system is inconsistent. The disadvantage is that the generator can only provide power and cannot store excess power.

In view of the lack of the prior art, this application is a method of regenerative energy generation, commercial power, energy storage module, and phase-separating power supply system, while maintaining the power consumption not exceeding the contract capacity, and inventing the case of the composite power supply section. Cost management system to improve the lack of the above-mentioned conventional technology.

The purpose of this creation is to provide a hybrid power supply cost management system that can input the power generated by the regenerative energy generator set into the power loop through the setting of the core controller, and then select the power price: 1. Renewable energy The power generated by the generator set is used by the rectifier to the load end, reducing the load dependence on the mains and avoiding exceeding the contract capacity. 2. The power generated by the renewable energy generator set is charged by the charger through the charger to increase the storage capacity of the storage module for later use.

The second objective of the present invention is to provide a hybrid power supply section cost management system, which can be set by the core controller, and the power during the off-peak period is stored in the energy storage module by the charger, and then during the power spike period. When approaching the contract capacity setting, it is replenished by the rectifier. The meter will sense the current power consumption and return it to the core controller. The core controller decides to pass the rectification. The device replenishes power from the energy storage module to reduce the demand for the mains. When the power rises beyond the startup start value, the controller extracts the relative power from the energy storage module to replenish the power loop to avoid exceeding the contract capacity. When the price is relatively cheap from the peak period, the power also drops below the charge start value, and the core controller will be powered by the charger to reserve in the energy storage module.

The third objective of the present invention is to provide a hybrid power supply section cost management system that can be set by the core controller when the core controller decides to replenish power from the energy storage module through the rectifier to reduce the power demand. The replenishment can be performed separately according to the power consumption of the three phases in the AC load. The advantage of this function is that according to the power consumption of each phase load, the power demand of each phase can be supplemented appropriately, the power extracted by the energy storage module can be saved, and the power supply of the three phase loads at the main power terminal can be balanced to avoid Power impact on the mains due to load imbalance.

In order to achieve the above purpose, the present invention provides a composite power supply section cost management system, which is disposed between a mains power supply and at least one three-phase load. The power management system includes: an electric meter coupled to the mains power supply and the at least Between one or three phase loads, the meter is used to detect the mains power and adjust the power distribution to recognize at least one three-phase load; a charger coupled to the core controller, the energy storage module; and an energy storage module, Connected to the charger, the rectifier; a core controller coupled to the regenerative energy generator set, the mains terminal, the charger, the energy storage component, the rectifier and the meter, and a rectifier coupled to The core controller, the energy storage module and the electricity meter form a closed loop architecture.

In order to achieve the above concept, the power management system can input the power generated by the regenerative energy generator set into the power circuit through the setting of the core controller, and then select the power generated by the regenerative energy generator set by the price of the power. Used by the rectifier to the load end, drop Low load dependence on utility power, avoiding exceeding contract capacity. Or the power generated by the regenerative energy generator set is charged to the power storage module via the charger, and the storage capacity of the power storage module is increased for later use. The setting of the core controller can store the power in the off-peak period in the energy storage module via the charger. When the power measured by the meter exceeds a first preset value, the meter transmits a first signal. Up to the core controller to cause the charger to cut off the charging route, and the load path is supplemented by the energy storage module and the rectifier to reduce power demand; when the measured power of the meter is lower than the preset value, The meter transmits a second signal to the core controller to cause the charger to conduct the charging route and return normal power to the load.

To achieve the above concept, the first preset value is a charge start value.

In order to achieve the above concept, the power management system can be set in the peak period through the core controller. When the power measured by the meter is lower than a second preset value, the meter transmits a third signal to the control. The core controller is configured to cause the charger to cut off the charging route; when the measured power of the meter exceeds the second preset value, the meter transmits a fourth signal to the controller to enable the charger to conduct the charging route, The energy storage element is charged.

To achieve the above concept, the second preset value is a charge activation value.

Therefore, the present invention has the following advantages and advantages: First, through the combination of a programmable core controller, a renewable energy generator set, a charger, a commercially available rectifier, and an energy storage module, the power consumption of the household is greatly reduced. The opportunity to be fined for capacity. Second, the choice of the power generated by the renewable energy generator set to the load end through the rectifier, or through the charger to charge the storage module to improve economic efficiency. Third, according to the power consumption of the three phases in the AC load, the power is separately applied. It is not possible to save the power drawn by the energy storage module, and it can also avoid the power impact caused by the load imbalance on the mains. Fourth, for the power company, provide a comparison Smooth electricity demand reduces the gap between power spikes and peaks. 5. Stable power demand can enable power companies to reduce their backup capacity and reduce the hardware and software and maintenance costs required to build excessive backup capacity.

10‧‧‧Power Circuit Architecture

11‧‧‧ core controller

12‧‧‧Renewable energy generator sets

13‧‧‧Charger

14‧‧‧ Energy storage module

15‧‧‧Rectifier

16‧‧‧Electric meter

17‧‧‧First phase load

18‧‧‧second phase load

19‧‧‧ Third phase load

20‧‧‧City terminal

The first figure is a schematic diagram of the system architecture of the creation; the second figure is a schematic diagram of a power-filling mode of the creation; and the third figure is a schematic diagram of another power-filling mode of the creation.

In order to facilitate your review committee to have a better understanding and understanding of the technical means and operation process of this creation, the embodiment is equipped with a table diagram, which is described in detail below.

Please refer to the first figure, which is a schematic diagram of the system architecture of the present invention. The present invention is a power management system 10 disposed between a mains power supply 20 and at least one three-phase load 17, 18, 19, and the power management system 10 The method includes: an electric meter 16 coupled to the core controller 11, the mains power supply 20 and the at least one three-phase load 17, 18, 19, the electric meter 16 is used for detecting the mains power and adjusting the power distribution to recognize at least one of three a phase load 17, 18, 19; a charger 13 coupled to the core controller 11 and the energy storage module 14; an energy storage module 14, coupled to the core controller 11, the charger 13 and a rectifier 15 is coupled to the core controller 11, the electric meter 16 and the energy storage module 14; a core controller 11 coupled to the regenerative energy generator set 12, the charger 13, and the mains The terminal 20, the electric meter 16, the energy storage module 14 and the rectifier 15.

The electric power generated by the regenerative power generator set 12 is input into the power circuit through the core controller 11, and is selected according to the price of the electric power. The electric power generated by the regenerative energy generator set is used by the rectifiers 15 to the loads 17, 18, 19 to reduce the load pair. The dependence of the city terminal 20, avoiding super Over contract capacity. Or, the power storage module 14 is charged via the charger 13, and the power storage capacity of the power storage module 14 is increased for later use.

The mains supply divides the two-way supply load 17, 18, 19; one way is directly supplied by the electric meter 16. The other circuit is supplied to the load via the core controller 11, the charger 13, the power storage module 14, the rectifier 15, and the electric meter 16. When the mains power measured by the electric meter 16 exceeds the power-on starting value, the electric meter 16 is about to be The mains 20 is isolated from the loads 17, 18, 19, and transmits a first signal to the core controller 11 to cause the charger 13 to cut off the charging route. The loads 17, 18, 19 are separated by the storage module 14 and The rectifier 15 supplements the power supply to reduce the power demand of the mains. When the power measured by the meter 16 is lower than the power-on threshold, the meter 16 transmits a second signal to the core controller 11 to enable the charger 13 to conduct the charging route, so that the power is restored to the load. 17, 18, 19.

In the present embodiment, the present invention integrates the core controller 11, the charger 13, the power storage module 14, and the rectifier 15 as a control system for the contract capacity.

Please refer to the first figure and the second figure at the same time. The second figure is a schematic diagram of a power-on mode according to the present invention. The horizontal uranium represents time (t), the vertical axis represents power (P), and the sawtooth line represents the measured mains power. When the power measured by the meter 16 rises to approach the contract capacity value B (ie, the override power-on value A), the core controller 11 extracts the relative power replenishment power circuit from the energy storage module 14 to avoid exceeding the contract capacity. limit. When approaching the contract capacity setting, the authoring system replenishes the power through the rectifier 15, and the meter 16 senses the current power consumption and returns it to the core controller 11, which is determined by the core controller 11 to pass through the rectifier 15 from the energy storage module. How much power is replenished in 14 to reduce the power demand, eliminating the inconvenience caused by the load 17, 18, 19 that needs to be shut down due to the start of the power saving system.

Please refer to the first figure and the third figure at the same time. The third figure is another power-filling mode of the present invention. Schematic diagram, in which the horizontal axis represents time (t), the vertical axis represents power (P), and the sawtooth line represents the measured mains power. This figure distinguishes between peak time and peak time. The system architecture of the present invention can be set by the core controller 11. When the measured mains power is lower than the charging start value D, the power during the off-peak period will be stored in the energy storage module 14 by the charger 13 (this is The so-called electric power), during the power spike period, when the mains power measured by the meter 16 is lower than the charging start value C, the meter 16 transmits a third signal to the controller to cause the charger 13 to cut off the charging route. The system of the present invention supplies the loads 17, 18, 19 from the mains 20 and isolates the charger 13 from the mains 20 (ie, does not buy electricity and does not recharge). When the mains power measured by the meter 16 exceeds the charging start value C, the meter transmits a fourth signal to the controller to cause the charger to conduct the charging route to charge the energy storage module 14. When the power demand drops to a value lower than the buyable electric power value D when the electricity price is relatively cheap during the off-peak period, the controller will draw the mains 20 from the charger 13 to the storage module 14 for standby.

Therefore, the system of the present invention can be selected by the algorithm built in the core controller 11 by the price of electricity, and the power generated by the regenerative power generator set is used by the rectifier 15 to the loads 17, 18, 19 to reduce the load pair. The dependence of the mains terminal 20 avoids exceeding the contract capacity. Or, the power storage module 14 is charged via the charger 13, and the power storage capacity of the power storage module 14 is increased for later use. And, in accordance with the peak off-peak power demand, according to the limit value of the contract capacity, the energy storage module 14 is used as a buffer zone, and the power supply of the city terminal 20 is automatically performed, so as not to exceed the contract capacity signed by the user and the power company, and to reduce the contract capacity. The cost of electricity for electricity users.

Due to the trend of efficient use of energy and energy-saving systems, the present invention proposes a combination of programmable core controller 11, charger 13, power storage module 14 and rectifier 15 as a hybrid power section cost management system structure. Effective distribution of electricity from the renewable energy power generation system and the mains terminal can significantly reduce the electricity users are fined for exceeding the contracted capacity of electricity. Opportunity, and provide a relatively stable demand for electricity, reduce the gap between power spikes and off-peak power, so that the power company's backup capacity can be reduced, reduce operating costs, and achieve energy-saving and carbon-reduction effects.

The detailed description above is for the specific description of one of the possible examples of the present name. However, the trade application is not intended to limit the scope of the patents of this work, and the equivalent implementation or change of the creative work should be It is included in the patent scope of this case.

10‧‧‧Power Circuit Architecture

11‧‧‧ core controller

12‧‧‧Renewable energy generator sets

13‧‧‧Charger

14‧‧‧ Energy storage module

15‧‧‧Rectifier

16‧‧‧Electric meter

17‧‧‧First phase load

18‧‧‧second phase load

19‧‧‧ Third phase load

20‧‧‧City terminal

Claims (6)

A composite power supply section cost management system is disposed between a mains power supply end, a regenerative energy generator set and at least one load end, and the composite power supply section cost management system comprises: an electric meter coupled to the mains power supply and the Between at least one load, the meter is used to detect the power of the mains and the power is adjusted to be distributed to the at least one load; a charger is coupled to the core controller; and an energy storage module is coupled to the charger; a rectifier coupled to the energy storage module and the electricity meter; and a core controller coupled to the utility power source, the regenerative energy generator set, the charger, the energy storage module, the rectifier, and the electric meter, Form a closed loop architecture. According to the composite power supply section cost management system according to claim 1, wherein the composite power supply section cost management system can select the core price through the built-in algorithm of the core controller, and the regeneration will be performed. The power generated by the energy generator set is supplied to the load via the rectifier, reducing the dependence of the load on the commercial power supply, avoiding exceeding the contract capacity, or charging the power storage module via the charger, and increasing the storage capacity of the power storage module for later use. . According to the composite power supply section cost management system according to claim 1, wherein the hybrid power supply section power management system can store the power during the off-peak period via the charger through the setting of the core controller. In the energy storage module, when the power measured by the meter exceeds a first preset value, the meter isolates the utility from the load, and transmits a first signal to the controller to cause the charger to cut off the charging route. The load path is supplemented by the energy storage module and the rectifier to reduce the power demand of the mains; when the power measured by the meter is lower than the preset value, the meter transmits a second signal to the controller to make the load The charger turns on the charging route so that the return power is normally supplied to the load. The composite power supply section cost management system according to claim 3, wherein the first preset value is a charge start value. The composite power supply section power management system according to claim 1, wherein the power management system is set to be in a peak period by the core controller, and when the power measured by the meter is lower than a second preset In the case of the value, the meter transmits a third signal to the core controller to cause the charger to cut off the charging route; when the measured power of the meter exceeds the second preset value, the meter transmits a fourth signal to The controller causes the charger to conduct a charging route to charge the energy storage module. For example, the composite power supply section cost management system described in claim 5, wherein the second preset value is a charging start value.