energy-saving electronic circuit
110841455
Energy Saving Design Method for Large Weak Electronic Circuit
This paper mainly discusses the energy saving design method for large weak electronic circuit. In large scale electronic circuit, there is no direct relevance between every two element modules. The traditional weak element circuit design concentrates in a single module, while ignoring module dependencies in energy saving design, resulting in high energy consumption in large scale electronic circuits. This paper proposes to establish the relevance energy loss model for each model in the large scale weak electronic circuit to obtain the energy consumption situation, and consider the energy consumption in module coordination to saving energy. The simulation results show that the proposed model used for large scale energy weak circuit design can effectively reduce the energy consumption in weak circuit application.
Boyang Yu Li Song Zhong Wu
55821350
Integration and Test Methods of Energy saving Electronic 10kV Metering Device
Designed in this paper, the energy saving electronic 10kV metering device is composed of electronic voltage transformer, electronic current transformer, electronic metering terminal and communication terminal. Electronic transformers and metering terminal are no longer designed and tested independently. Based on the principle of minimum overall error of 10kV electricity metering device, the partial pressure ratio of 10kV volt age divider network, the ratio of electronic current transformer and currentvoltage conversion, the influence of the stray capacitance generated after electronic transformer and metering terminal are packaged in the circuit breaker box, should be coordinated in integrated design consideration, based on input range and calibration capability of measurement chip. And the 10kV metering device is tested with integration method. This article describes the device structures and calibrating methods. The test results show that the active power accuracy class of the device designed in this paper is 0.5, and that reactive power accuracy class is 2.0. The developed device with low power consumption advantages and three phase fourwire connection mode, resolved line loss problem due to the unbalanced load. KEYWORD: 10kV measurement; electronic voltage transformer; electronic current transformer; integration; error uncertainty 4th International Conference on Mechanical Materials and Manufacturing Engineering (MMME 2016) (c) 2016. The authors Published by Atlantis Press 847 block diagram of Fig.1, include: electronic transformers, electronic metering terminal and communication terminal. By use of electronic voltage transformer and current transformer, the device transferred high voltage and large current signal into little volt voltage signals and mill amperes current signals which were sent directly to the measurement terminal for data processing. And the energy parameters obtained were transmitted by RS485 to the communication terminal finally. The electronic transformers and metering terminal were packed in the circuit breaker box hanged on the top of the pole for anti stealing electric energy. And the communication terminal used for meter reading staff and users to check the data was put in the bottom of the pole. Simultaneously, the communication terminal has the function of the local power parameters displaying and remote data transmission. The device using a 50MO HV resistance between with phase and ground, did not affect the connection mode of 10kV system. Figure 1. Block diagram for metering device system 2.1 Metering Terminal The metering terminal shown as Fig.2, consisted of the following sections: pre processing circuit, ADE7878, MCU, ferroelectric memory, RS232/485, real time clock (RC) and power module, etc. The metering terminal calculated power parameters, then transmitted data to display terminal. ADE7878 can calibrate the phase and amplitude offset of electronic transformer within a certain range. Figure 2. Block diagram for metering terminal The high voltage and large current signals from 10kV high voltage grid were converted by the preprocessing circuit into mV, mA level signals transmitted to ADE7878. The data were processed and stored in internal registers of ADE7878, The LPC2368 microcontroller could read current, voltage, power, electric energy and other data via the serial port. RS232 was used to automatic calibration of the device and RS485 was for remote meter reading. 2.2 HV Energy Supply Module The design of HV energy supply module uses the principle of capacitive voltage divider. The line voltage instead of phase voltage as supply ensured that the accuracy of the phase voltage measurement is not affected. By selecting the proper capacitance value, the voltage divider output was controlled within 83V~154.2V with the 10kV voltage fluctuation range 7~13kV, because the measurement terminal voltage input range was 80V~265V. The pressure value of the high voltage capacitor is chosen as 50kV, which meted the 42kV requirement of 10kV equipment. 3 INTEGRATED DESIGN METHOD The so called integrated design method means that electronic transformers and metering terminal are no longer designed independently, tested independently. Based on the principle of minimum overall error of 10kV electricity metering device, the partial pressure ratio of 10kV voltage divider network, the ratio of electronic current transformer and current voltage conversion, the influence of the stray capacitance generated after electronic transformer and metering terminal are packaged in the circuit breaker box, should be coordinated in integrated design consideration, based on input range and calibration capability of measurement chip. The calibration flow chart of the ADE7878 gain registers and offset registers is shown in Fig. 3. Figure 3. Calibration flow chart 4 INTEGRATION TESTING ERROR AND UNCERTAINTY ANALYSIS 4.1 Independent Test In this context, the technical indicators of energysaving electronic 10kV metering device are: voltage:3*5.77kV, current:5~500A, frequency:
Qiu-feng Shang Yuan Jing Li Q Q Chen
109351884
Study on Energy Saving Electronic Water Treatment Facility with Automatically Adjustable Operating Voltage
When wastewater is treated with an electronic water treatment method, hardness, alkalinity and conductivity of the wastewater decrease much slower with time on. If the operating voltage of wastewater treatment is reduced at this time, the purpose of energy saving can be realized while wastewater treatment efficiency is guaranteed. Existing electronic water treatment facilities always realize water treatment with constant low voltages and almost all of them have no optimal design about energy saving, water treatment system rust reduction, water treatment automation, etc. To solve these problems, a new energy saving electronic water treatment facility is designed in this paper. Based on a low power SCM MPS430F169 and circuits such as the water treatment voltage control circuit and the voltage and current sampling circuit, the facility establishes a closed loop system with functions of water quality monitoring and automatic water treatment voltage adjustment. Experimental results show that the facility can realize real time water quality monitoring in the process of wastewater treatment and automatically adjust operating voltage in line with the water quality, thus significantly reducing unnecessary energy consumption. The facility can be used in fields such as industrial circulating water treatment.
Jun Lei Song Fengxiang Shi Min Zhang Qian Zou Shuo Chen Zi Min Yuan Xiangjun Zhao
117288647
Standby energy saving electronic module of intelligent electrical appliance
The present invention discloses an intelligent electronic appliances standby power saving module, an intelligent appliances relates to energy saving standby electronic circuitry, particularly for the TV, VCD, DVD, and a desktop computer (PC) and related products, standby power saving electronic circuit. Aspect of the present invention includes: a basic power supply circuit module, the starting trigger circuit, the trigger threshold voltage of the positive feedback circuit, a voltage regulator integrated circuit, a logic control circuit, the control circuit buttons. The present invention includes: a reduced electrical standby power consumption, small size, low cost, simple structure and convenient installation. Machine parts can be used as an electronic module, rather than a separate machine on the outside of ancillary products. When the present invention is used in conjunction with smart appliances, smart appliances can reduce the standby power consumption of the standby power consumption of the smart appliances is not greater than 1W.
112777752
Research on Energy Saving Design Method of Large Electronic Components Circuit
In this paper,the energy saving design for large electronics circuit was studied in order to improve the efficiency of energy saving. In large electronic circuit design,there is no direct correlation between the various components of the module. The traditional method for electrical components circuit design is centered on a single module.Although energy saving design is considered,the correlation of energy saving design between the overall modules is ignored,resulting in higher power consumption of large electrical components in electronic circuits. This paper presented an energy saving method for large circuit design based on adaptive linear genetic. Firstly,the associated loss model for each module of the large scale electrical components circuit was established to get the energy consuming in large circuit. Then the author used adaptive linear genetic approach and considered the energy generated in the module cooperation process to save energy. Simulation results from using the EDA software show that the improved algorithm for large scale energy saving circuit design can effectively reduce the energy consumption in the process of circuit application.
Wu Dong-n
17378231
Design of the feedback type energy saving electronic load
Feedback Type Electronic Load is a load to simulate the characteristics of the new power electronic devices, which can be used as test equipment. The energy can be feedback to the utility power system with little loss and high power factor. This paper introduce a practical system. System consists of the control circuits, main circuits and detection circuits. Control circuit uses two ATMega128 controller for communication and display. The main circuit is mainly built with a MOSFET inverter H bridge, which is used to convert DC into the AC. Detection circuits uses optocoupler devices which are used to get DC voltage and current. In the whole system, connecting to the grid is very important. After the analysis of control strategies, a phase locked loop is used to make the inverted current and voltage into the same phase and frequency. To achieve constant current, constant resistance and constant power mode, we use PI regulator with fast transient response and high stability. System also has the under voltage and over current protecting function, which is used to improve system security. The device has the merit of energy saving, small size, light weight, and it can save installation space and has the advantages of excellent performance.
2011 6th IEEE Conference on Industrial Electronics and Applications
Wu Jialong Zhang Liwei Li Yan Zhang Yujin Zhou Xing
116158853
Energy saving electronic scales
The utility model discloses an energy saving electronic scale which comprises a strain sensor, a measuring circuit, a micro controller, a keyboard, a monitor and other like; the strain sensor is connected with the measuring circuit controlled by the micro controller; one end of the strain sensor is connected with an electronic switch; the electronic switch is connected with the micro controller. The micro controller detects the working status of the strain sensor by the measuring circuit; when the energy saving electronic scale works, the electronic switch is connected and the strain sensor continuously supplies power; when the energy saving electronic scale is in the standby state, the connection and the disconnection of the electronic switch are controlled by the micro controller. The energy saving electronic scale effectively solves the problems of the prior electronic scale that the energy consumption is high, the battery needs to be often replaced and the use cost is high, has simple structure, can save energy only by adding an electronic switch with low cost and adjusting the control program, and is worthy of promotion and application.
64859788
Energy saving and anti shake controller circuit of contactor
The invention discloses an energy saving and anti shake controller circuit of a contactor. The controller circuit comprises an electronic energy saving modular circuit (08) for the contactor and an electronic energy saving modular full voltage automatic time sharing batching restart control circuit (013) wherein the electronic energy saving modular circuit (08) for the contactor consists of a full voltage AC (Alternating Current) (DC (Direct Current) DC conversion circuit (04) with a short circuit protection function, a full voltage "intelligent switch on operation" and low voltage holding circuit (06) and a voltage inverse pulse width time occurrence circuit (07) and the energy saving modular full voltage automatic time sharing batching restart control circuit (013) consists of a low pass filtering full voltage AC (DC) DC conversion circuit (011) with an automatic working voltage interval option function, and a multifunctional time sharing restart signal occurrence and control circuit (012) The controller circuit adopts a control voltage Us inverse time pulsed full voltage start, wide voltage and constant power output low voltage DC holding and automatic shake and outage time sharing batching restart technology.
141194510
Delay energy saving lamp circuit and lamp
The invention is applicable to the field of electronic lighting and provides a delay energy saving lamp circuit and a lamp which are used for controlling and driving lighting of a lighting load. The delay energy saving lamp circuit comprises a transformer, a rectifier bridge, a switching tube, a trigger switch, an energy storage capacitor and the like, wherein the transformer includes a primary coil and a secondary coil which are mutually coupled, the transformer is electrically connected between an alternating current power supply and the lighting load, the rectifier bridge is connected in series between the power supply and the primary coil or between the secondary coil and the lighting load, and the switching tube is used for controlling work of the rectifier bridge. The invention further provides a lamp including the delay energy saving lamp circuit. Delay control is realized through combination of the switching tube and the energy storage capacitor. When the trigger switch is switched off, the energy storage capacitor discharges electricity, and the switching tube can continue to be switched on for a period of time; and when the voltage of the energy storage capacitor drops too much to maintain the switching tube in a switched on state, the power supply of the transformer is cut off, and the lighting load goes out. Therefore, the lamp can be automatically turned off after being in a turned on state for a period of time and has a delay energy saving effect.
112329843
Teaching Research of Circuit Design for Energy saving Lights
With the phasing out of incandescent lights, a bright future for LED energy saving lights are coming. How to design circuit for energy saving lights and bring it into practical teaching is introduced in this paper. Particularly some important parts are analyzed theoretically, and testified by simulation or experiment,which brings a new approach to develop the ability to design circuit and improve practice results for electronic beginners.
Yuan Yu-hai