TW201419728A - Power saving system capable of selecting and stabilizing output voltage - Google Patents

Abstract

The present invention is a power saving system capable of selecting and stabilizing an output voltage, including a multi-output voltage transformer, a voltage regulating controller, a plurality of voltage selecting switches and at least one load controller, in which the primary winding side of the multi-output voltage transformer is connected with an input voltage through each of the tap switches and in the meantime each phase has only one tap switch in a conductive state while the other tap switches are in an open circuit state. The secondary winding side is provided with a plurality of output lead wires, so as to generate a plurality of output voltages of different voltage values. The voltage regulating controller is able to detect the value of the input voltage and thereby change the conductive or open circuit states of said tap switches, so that the output voltages will conform to predetermined voltages. Said voltage selecting switches are connected to nodes between the loads and said output lead wires respectively; meanwhile, one load is only allowed to receive the output voltage of one output lead wire. The input end and output end of each load controller are connected with each load and each voltage selecting switch respectively, and it will change the state of each voltage selecting switch according to the working status of each load, so as to change the value of the output voltage transmitted to each of the loads. Accordingly, through changing the conductive or open circuit states of the tap switches, the output voltages can be kept at values prescribed by the keeper; moreover, the output voltages transmitted by switching the voltage selecting switches can ensure that each load receives an appropriate voltage value, which significantly reduces the power cost consumed by inappropriate operating voltages.

Description

Power saving system capable of selecting and stabilizing the output voltage

The invention relates to a power saving system, in particular to an actual voltage value capable of detecting an input voltage, and appropriately adjusting a turns ratio of a coil between a primary winding side and a secondary winding side, so that the output voltage conforms to an expected voltage value, and According to the operation of each load, the power saving device that supplies the appropriate voltage to each load is adjusted.

According to the vigorous development of the domestic industrial and commercial industries, the demand for energy sources has increased greatly. The main reason is that when constructing factories, machine rooms or commercial buildings (such as department stores and mass merchandisers), in addition to production or In addition to the machines required for work, other equipment such as air conditioners, lighting equipment, elevators, etc., will also be used in larger quantities to provide a better environment for workers or people. However, in actual situations, equipment such as machines, air conditioners, or lighting equipment cannot be fully loaded at all times, and may change over time (such as working hours, midnight) or the number of people. It is in light-load operation or no-load operation. Therefore, when the equipment is not fully loaded, it still receives the working voltage required for full-load operation. It is not only a waste of energy, but also causes the production and operation of the industry. The cost has increased dramatically.

In addition, in addition to the foregoing, in general, when a power company (such as a Taiwan Power Company) supplies power to a supplier, the supply voltage (service voltage) supplied thereto has a rate of change, and therefore, the equipment receives The actual voltage value may exceed the rated voltage, which may cause damage to the equipment. For example, for the motor (or motor) equipment, when it is connected When the received voltage is higher than the rated voltage, it will cause an increase in starting current and an increase in torque. Under long-term operation, not only will the service life of the capacitors and other related parts be shortened, but even the operation will occur. The high heat generated and burned out, so in order to make the equipment operate normally, equipment manufacturers usually reserve a safety margin when manufacturing equipment, so as to allow the fluctuation rate of the power supply voltage, which not only improves the installation of the equipment. Cost, and often cause waste of electrical energy. In addition, when the rate of change of the supply voltage exceeds the safety margin of the equipment, it will inevitably cause equipment damage.

As can be seen from the above, there are two power problems that are currently faced by the industry. One is the rate of change of the supply voltage, which causes the voltage received during operation of the equipment not to be within the safety margin (ie, non- Allowable working voltage), causing the equipment to operate under improper working voltage, prone to damage or poor work quality; second, when the working state of the equipment (such as: full load, light load, no load) changes, its The received operating voltage has not changed, resulting in wasted power.

At present, the calculation standard of electric power adopts electric power, wherein the electric power further includes apparent power, real power and reactive power, so-called apparent power system equipment. The product of the received voltage (V) and the current (I); the effective power is the product of the voltage (V) and current (I) used by the device during operation, multiplied by cos θ, the aforementioned θ is the voltage (V) The phase difference from the current (I); the ineffective power is the product of the voltage (V) and current (I) of the device, and multiplied by sin θ; check, the power company (such as: Taiwan Power Company) is supplying power to When the industry, the electric power it provides is the apparent power, but the consumption The electricity fee paid by the person is based on the effective power. Therefore, if the operator can adjust the working voltage of the equipment according to the working state of the equipment, so that it can effectively reduce the generation of effective power, thereby saving the electricity expenses of the operator, the power company It can also reduce the total power generation of the whole.

Therefore, how to design a new power-saving system for the above power problem, so that the input voltage and output voltage can be adjusted, so that the device can not only continuously obtain a stable working voltage, but also can receive different working voltages according to its working state. In order to greatly reduce the unnecessary electricity expenses of the industry, it is an important subject for the present invention to be discussed.

In view of the fact that there is no power-saving system at present, it is possible to adjust the output voltage output to each load according to the operation of each load when the output voltage is stabilized, which often causes the operator to spend unnecessary power costs. Therefore, the inventor has made long-term efforts. Research and experiment, finally developed and designed a power saving system capable of selecting and stabilizing the output voltage of the present invention, so as to provide a better power saving system by the invention, so that the operator can reduce the electricity cost and can save energy and reduce carbon. Do your best.

An object of the present invention is to provide a power saving system capable of selecting and stabilizing an output voltage, which can adjust the voltage value outputted to the load according to the working state of the load, and can perform corresponding adjustment according to the variation of the input voltage to make the output voltage Having a stable value, the power saving system includes a multi-output voltage transformer, a voltage regulator controller, a plurality of voltage selection switches, and at least one load controller, wherein the multi-output voltage transformer includes a primary winding side (primary a plurality of tap switches and a secondary side, wherein the primary winding side is provided with a plurality of tap leads, each of the tap leads being connected to an input voltage through each of the tap switches, At the same time, only one tap open relationship of each phase is in a conducting state, and the remaining tap switches are in an open state. Further, the secondary winding side is provided with a plurality of output leads to generate a plurality of outputs of different voltage values. The voltage can be respectively output to different loads (such as: air conditioner, machine tool, air compressor, etc.), and the input end of the voltage regulator controller is connected to the multi-output voltage transformer to detect the input voltage Actual voltage value, and according to which the on or off state of the tap switches is changed, so that the voltage value of the output voltage meets a preset value, and further, each of the voltage selection switches is respectively connected to each of the loads and the same Between the output leads, and at the same time, one load can only receive the output voltage of one output lead, and the output end and the input end of each load controller are respectively connected to each of the load and each of the electric The pressure selection switch detects the working state of each load (eg, full load, light load, no load), and switches each of the voltage selection switches to change the voltage value of the output voltage transmitted to each of the loads. Thus, with the design of the power saving system of the present invention, when the input voltage is unstable, the output voltage generated on the secondary winding side can be kept preset by changing the on or off state of the tap switches. The value, in addition, when each of the load controllers detects that a part of the load is in a full load, light load or no load, it can still reduce the overall output of the switch by switching the output voltage of each voltage selection switch. Electricity efficiency, which in turn saves electricity costs.

For your convenience, the review committee can make a further understanding and understanding of the purpose, technical features and effects of the present invention. as follows:

The present invention is a power saving system capable of selecting and stabilizing an output voltage. Referring to FIG. 1 , the power saving system 1 includes a multi-output voltage transformer 11 , a voltage regulator controller 13 , a plurality of voltage selection switches 15 , and a plurality of The load controller 17, in a preferred embodiment, the multi-output voltage transformer 11 is an autotransformer (ie, a transformer having a line group), mainly in the same capacity autotransformer and isolation transformer (ie Compared with transformers with two wire sets, not only the size of the autotransformer is small, but also the loss or cost is smaller than the isolation transformer, which helps to reduce the production cost of the operator, although the first picture is The circuit mode of the coupling transformer is drawn, but in other embodiments of the present invention, the manufacturer can also use various suitable transformers as the multi-output voltage transformer 11 according to the requirements of the product.

As shown in FIG. 1 , the multi-output voltage transformer 11 includes a primary side 111 (primary side), a primary side side 113 (secondary side), and a plurality of tap switches 115 (eg, 1st). The virtual winding side 111 is provided with a plurality of tap leads 112, each of which is respectively connected to an input voltage Vin through each of the tap switches 115, when different When the tap switches 115 are each in an on state, the turns ratio of the coil between the primary winding side 111 and the secondary winding side 113 is changed, and the upper and lower limits of the voltage values of the output voltages V1 to Vn of the secondary winding side 113 are changed. Thus, when the input voltage Vin is unstable, the operator can turn each of the tap switches 115 into a conducting state to output the voltage. V1~Vn is controlled by a preset voltage value to achieve the effect of stabilizing the output voltage. For example, when the input voltage Vin has a voltage value of 110 volts, the output voltage V1 is 2200 volts, but when the voltage of the input voltage Vin is When the value is 120 volts, the output voltage V1 is 2400 volts. At this time, the operator can change the on or off state of each tap switch 115 so that the output voltage V1 remains at 2200 volts so that the load 19 can receive The correct working voltage. Moreover, in order to achieve the foregoing effects, at the same time, only one tap switch 115 is in an on state in each phase, and the remaining tap switches 115 are in an off state to avoid the output voltage V1 of the multi-output voltage transformer 11. ~Vn is too far from the expected value of the industry.

Referring to FIG. 1, the secondary winding side 113 is provided with a plurality of output leads 114. Since the positions of the output leads 114 in the secondary winding side 113 are not the same, that is, each output lead 114 is The turns ratio of the windings of the secondary winding side 113 and the primary winding side 111 are different, so that the output voltages V1~Vn generated by each of the output leads 114 are different, so that the load 19 can receive differently according to its own needs. The output voltages V1 to Vn transmitted by the output leads 114. In particular, the number of the tap switch 115 and the output lead 114 shown in FIG. 1 is the same, but only an embodiment of the present invention. In fact, the operator can rely on the multi-output voltage transformer 11 The capacity and load 19 are required to reduce or increase the number of tap switches 115 and output leads 114, respectively, such that the number of tap switches 115 and output leads 114 are different.

In addition, as shown in FIG. 1, the input end of the voltage regulating controller 13 is connected to the multi-output voltage transformer 11, which can control each tap switch 115 to be turned on or off, and can detect the The actual voltage value of the input voltage Vin, The voltage regulating controller 13 is provided with a voltage target value. When it is determined that the actual voltage value of the input voltage Vin is higher or lower than the voltage target value, it can change the conduction of the tap switch 115. Or the off state, so that the turns ratio of the coil between the primary winding side 111 and the secondary winding side 113 is changed, so that the voltage value of the output voltages V1 VVn can be set at a voltage value preset by the operator to avoid the load 19 being received. Incorrect working voltage. Furthermore, the voltage selection switches 15 (such as each of the voltage selection switches 15 shown in the dashed box of FIG. 1) are respectively connected between the respective loads 19 and the output leads 114, and at the same time, a load 19 Among the corresponding plurality of voltage selection switches 15, only one voltage selection switch 15 is in an on state, and the remaining voltage selection switches 15 are in an off state, that is, each of the loads 19 can only receive one output lead 114. In the embodiment, a load 19 is connected to the three voltage selection switches 15, but is not limited thereto, and the plurality of voltage selection switches 15 corresponding to the different loads 19 can Electrically connected to different output leads 114 to receive different output voltages V1~Vn. For example, the load 19 on the left of the first picture can receive the output voltages V1, V3 and Vn, and the load 19 on the right can receive Output voltages V1, V2 and V3.

Referring to FIG. 1 , in this embodiment, each load 19 and its corresponding voltage selection switch 15 are respectively connected to an output end and an input end of the same load controller 17 . 17 can detect the working state of the load 19 (such as: full load, light load, no load), and can switch each of the voltage selection switches 15 according to the current working state of the load 19, so that the load 19 can receive the suitable according to the current working state. The output voltages V1 VVn, in various embodiments of the present invention, the load controller 17 is capable of detecting the load 19 by itself. In addition to the working state (such as the connection between the load controller 17 and the load 19 on the right side of FIG. 1 ), there are other embodiments, for example, a detection module 18 is further disposed between the load controller 17 and the load 19 . The detection module 18 can be disposed on the load 19 and obtain the current working state of the load 19 for transmission to the load controller 17; or the detection module 18 can be a separate sensing component (eg, : temperature sensor, light sensor, pressure sensor, etc.), and it can detect the working state of the load 19, and transmit the relevant detection signal to the load controller 17, which is described first. Referring to FIG. 2, the load controller 17 includes a microprocessor 171, a memory unit 173, and an output/input interface 175, wherein the microprocessor 171 passes through the busbar 1711 (eg, a data bus ( The data bus), the address bus, and the control bus are respectively connected to the memory unit 173 and the output/input interface 175 for transmitting or receiving instructions, and the memory unit 173 is still installed. There is a program 1731 for executing a program for switching the voltage selection switch 15, which is capable of connecting required sensing elements (eg, temperature sensor, photo sensor, pressure sensor, etc.) with The voltage selection switch 15 is configured such that after the program is executed and the sensor is received, the load 19 is selected to meet the demand and the most energy-saving operating voltage, and the voltage is selected through the output/input interface 175. The switch 15 performs a switching operation. However, the foregoing load controller 17 is only an embodiment, and the operator can adjust the component structure of the load controller 17 according to the product requirements, as long as the load controller 17 can switch the voltage selection switch 15 according to the working state of the load 19. That is, the load controller 17 described in the present invention is described in advance.

For convenience of explanation, please refer to Figure 1, which is shown at the far right of Figure 1. The voltage selection switch 15, the load controller 17, and the load 19 are exemplified, wherein the load 19 is an air conditioner, and three voltage selection switches 15 are electrically connected, and the voltage selection switches 15 are electrically connected to the output voltages V1 to V3, respectively. The output voltage V1 is a full load voltage, the output voltage V2 is a light load voltage, and the output voltage V3 is a no-load voltage. The load controller 17 is provided with a temperature sensor to detect the indoor temperature and has a built-in temperature value. When the indoor temperature exceeds the full load temperature value set by the load controller 17, the load controller 17 turns on the voltage selection switch 15 corresponding to the output voltage V1. The remaining voltage selection switch 15 is in a disconnected state, so that the load 19 can receive the voltage value of the output voltage V1 and operate; and when the number of people in the room is small, the indoor temperature is lower than that set by the load controller 17. When the no-load temperature value is reached, the load controller 17 causes the voltage selection switch 15 corresponding to the output voltage V3 to be in an on state, and the remaining voltage selection switches 15 to be in a off state, so that the load 19 Receiving the voltage value of the output voltage V3 and operating; thus, under the different working states of the respective loads 19, only the output voltages V1~Vn corresponding to the working states are received, so as to avoid the load 19 only requiring no-load voltage At the time, the full load voltage is still received, resulting in wasted power.

In the above description, in the first embodiment and the foregoing embodiment, although a load controller 17 is connected to a load 19 and a set of voltage selection switches 15 (ie, three voltage selection switches 15) as an example, However, in other examples of the present invention, the operator can provide only one load controller 17, and the load controller 17 can be connected to a plurality of loads 19 and a plurality of sets of voltage selection switches 15 so that each of the loads 19 receives only at the same time. Up to an output voltage V1~Vn, in addition, the voltage regulating controller 13 and the load controller 17 of the present invention can respectively pass through a medium The surface device (not shown) is connected to a corresponding component (such as a multi-output voltage transformer 11 and a voltage selection switch 15). Thus, with the overall design of the power saving system 1 of the present invention, when the input voltage Vin is unstable, the primary winding side 111 and the secondary winding side 113 can be made by changing the on or off state of the tap switch 115. The turns ratio of the coil is changed, so that the output voltage generated by the secondary winding side 113 is maintained at a preset voltage value, so that the load 19 does not operate on an incorrect voltage value, thereby effectively increasing the power consumption of the load 19. effectiveness. Moreover, when each of the load controllers 17 detects that the partial load 19 is in a full load, light load or no load operation state, it will switch the output voltages V1 VVn delivered by the voltage selection switches 15 so that each load controller 17 The load 19 can receive the most energy-saving voltage value enough to maintain the normal working state, and does not receive the full load voltage under the idle or light load working state, thereby greatly reducing the power cost consumed by the operator.

The above is only the preferred embodiment of the present invention, but the scope of the claims of the present invention is not limited thereto, and according to those skilled in the art, according to the technical content disclosed in the present invention, Equivalent changes that are easily considered are within the scope of protection of the invention.

1‧‧‧Power saving system

11‧‧‧Multiple output voltage transformer

111‧‧‧Primary winding side

112‧‧‧Tap leads

113‧‧‧Secondary winding side

114‧‧‧Output leads

115‧‧‧ Tap switch

13‧‧‧Regulator controller

15‧‧‧Voltage selection switch

17‧‧‧Load controller

171‧‧‧Microprocessor

1711‧‧‧ Busbar

173‧‧‧ memory unit

1731‧‧‧Program

175‧‧‧Output/input interface

18‧‧‧Detection module

19‧‧‧ load

Vin‧‧‧Input voltage

V1~Vn‧‧‧ output voltage

1 is a schematic view of a power saving system of the present invention; and FIG. 2 is a schematic structural view of a load controller of the present invention.

1‧‧‧Power saving system

11‧‧‧Multiple output voltage transformer

111‧‧‧Primary winding side

112‧‧‧Tap leads

113‧‧‧Secondary winding side

114‧‧‧Output leads

115‧‧‧ Tap switch

13‧‧‧Regulator controller

15‧‧‧Voltage selection switch

17‧‧‧Load controller

18‧‧‧Detection module

19‧‧‧ load

Vin‧‧‧Input voltage

V1~Vn‧‧‧ output voltage

Claims (4)

A power saving system capable of selecting and stabilizing an output voltage, comprising: a multi-output voltage transformer comprising a primary winding side, a plurality of tap switches, and a primary winding side, wherein the primary winding side is provided with a plurality of tap leads, each of which The tap leads are respectively connected to an input voltage through the tap switches, and at the same time, only one tap open relationship of each phase is in a conductive state, and the remaining tap switches are in an off state, and each tap switch is In the case of being respectively in an on state, the turns ratio of the coil between the primary winding side and the secondary winding side is changed, and the secondary winding side is provided with a plurality of output leads to generate a plurality of output voltages of different voltage values; a voltage regulating controller is connected to the multi-output voltage transformer to detect an actual voltage value of the input voltage on the primary winding side, and can change the on or off state of the tap switch to adjust each The voltage value of the output voltage; a plurality of voltage selection switches respectively connected to the respective loads and the output leads, and the same Between the voltage selection switches corresponding to one load, only one voltage selection switch is in an on state, and the remaining voltage selection switches are in an off state; and at least one load controller is respectively connected to each of the loads and the voltage selections The switch detects the working state of each of the loads, and switches each of the voltage selection switches to change the voltage value of the output voltage transmitted to each of the load devices. The power saving system of claim 1, wherein the voltage regulating controller is provided with a voltage target value, and in a state that the actual voltage value of the input voltage on the primary winding side is determined to be higher or lower than the voltage target value, It can be used to change the on or off state of the tap switches. The power saving system of claim 2, further comprising a detecting module, wherein the load controller is indirectly connected to the load by the detecting module, and the detecting module can obtain the current work of the load Status and transfer to the load controller. The power saving system of claim 3, wherein the multi-output voltage transformer is an autotransformer.