Contract for:<br/><br/>SPECIFIC TARGETED RESEARCH OR INNOVATION PROJECT<br/><br/>WP3: Developing Appropiate Technologies DELIVERABLE D12: 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries (P1)<br/>Project acronym: CRESMED Project full title: Cost efficient and reliable rural electrification schemes for South Mediterranean countries based on multi user Solar Hybrid grids Proposal/Contract no.: 015286<br/><br/>Contract 015286 (INCO) - CRESMED Document: D-12 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries WP 3 Task 3.2 Final use- I Date: 17/02/2008 Description: Language English Responsible: Antoine Graillot Co-authors Revised by:<br/><br/>Version:01 Level: PW Nș pages:11<br/><br/>Author: Antoine Graillot Date Comments<br/><br/><br/>Table of content<br/><br/>1 2<br/><br/>INTRODUCTION ............................................................................................................. 3 LOAD TYPES IN A DOMESTIC BUILDING...............................................................3 2.1 Daily Cycle profile .................................................................................................... 5 2.2 Base load profile......................................................................................................... 5 2.3 Daily deferrable profile ............................................................................................. 5 2.4 Periodical deferrable profile ...................................................................................... 5 2.5 Dump or ballast profile ............................................................................................. 5 ARCHITECTURE OF USER DEMAND MANAGEMENT (4.4 DEVICE)...............6 THE USER DEMAND MANAGEMENT DEVICE.......................................................8 INSTALLATION ...................................................................................................9 CONNECTION ...................................................................................................10 GETTING ON ............................................................................................... 11 TECHNICAL CHARACTERISTICS ................................................................... 12<br/><br/>3 4 5 6 7 8<br/><br/><br/>1 Introduction<br/>This document describes the User Demand Management device. This device is the most important in the management system. It interacts with the grid inverter central unit and the load side. The device also implements an intelligent energy counter: this counter shows real energy price information to the user and, more important, gives to the user the correct inputs in the Good Electrical Load Management Practices (GELMP) direction.<br/><br/>Figure 1: The User Demand Management device<br/><br/>2 Load types in a domestic building<br/>To understand how works the device inside a house, it's crucial to analyse and classify the different kind of appliances that we can find in a domestic building, and how the user interacts with. Figure 2 shows a classification of the different appliances in a domestic building from Load Management point of view. For every appliance we need to know the nature of the load (load profile), and answer several questions, as: § § § §<br/>D 12 Project:<br/><br/>Could we avoid this load? Could we defer this load? If so up to how long? Could we interrupt this load? If so for how long? Could we modulate this load? If so up to how much?<br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 3/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>PROFILE<br/><br/>LOAD<br/><br/>1 Daily Cycle<br/><br/>NO<br/><br/>NO<br/><br/>NO<br/><br/>YES<br/><br/>2a Base Load NO NO NO NO<br/><br/>2b Base Load Interruptible<br/><br/>A+ A+<br/>2c Base Load Stand-by<br/><br/>NO<br/><br/>NO<br/><br/>YES<br/><br/>NO<br/><br/>YES<br/><br/>NO<br/><br/>YES<br/><br/>YES<br/><br/>3 Daily Deferrable NO YES YES NO<br/><br/>4 Periodical Deferrable<br/><br/>NO<br/><br/>YES<br/><br/>SOME<br/><br/>NO<br/><br/>5 &quot;Dump or ballast&quot; YES YES YES YES<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 4/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/>MODULABLE<br/><br/>INTERRUPT.<br/><br/>DEFERABLE<br/><br/>AVOIDABLE<br/><br/><br/>Figure 2 ­ Classification of the different load types in a domestic building<br/><br/>2.1<br/><br/>Daily Cycle profile<br/><br/>In this classification we consider all appliances directly referred to the user explicit activities: lights, air conditioning, computer, TV, etc., and with a characteristic daily profile. From the distribution load during the day, we can consider two general activities: § Commercial activity: Consumption is produced in a very delimited time period and only during labour days, generally between 9-18h (office) or 10-20h (shops). § Domestic activity: Consumption tends to be more distributed during the day and generally the peak hours are during afternoon and night (see graph on Figure 2)<br/><br/>2.2<br/><br/>Base load profile<br/><br/>This classification includes all appliances and electronic devices with a fix permanent consumption. In a building we can find three different kinds of base load appliances: 2a. Base Load: This appliances NEVER can be disconnected without causing a great damage to the user: it includes the wireless phone/network, FAX, the alarm system, computer server(if it's on) and emergency lights. 2b. Base Load Interruptible: It includes priority appliances, as refrigerator, notebook or central heating. It's possible to interrupt this loads, but only for a limited period of time (to be defined). 2c. Base Load stand-by: It's a parasitic fixed load produced for appliances that has only been electronically disconnected (for example, remote command control appliances as TV or DVD). Some studies quantify this leakage in 10% of electricity consumption, so we must give to the user powerful tools to avoid this.<br/><br/>2.3<br/><br/>Daily deferrable profile<br/><br/>This classification refers to all appliances and electronic devices daily used and deferrable during the day: it includes a hot water tank electrically heated or battery charger devices (mobile pho ne, PDA, etc...). In some cases, a use sparingly appliance, (a photocopy, p.ex.) could be treated as a daily deferrable load.<br/><br/>2.4<br/><br/>Periodical deferrable profile<br/><br/>This classification refers to all appliances periodically used and fully deferrable, but usually requires the user complicity: it includes the washing machine or other directly operated for the user, as iron, aspirator, oven, etc... Only some of this appliances, as the washing machine or the dishwasher machine could be controlled automatically<br/><br/>2.5<br/>D 12 Project:<br/><br/>Dump or ballast profile<br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 5/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>This classification refers to all appliances not periodically used and usually avoidable, so we can use it &quot;as a premium&quot;, when the system requires to &quot;waste&quot; energy. Of course, the use of this &quot;dump loads&quot; requires the complicity of user: some good examples of this could be the family hobbies, as DIY appliances (drill, saw, etc ), a whirlpool bathtub or a UVA machine.<br/><br/>3 Architecture of User Demand Management<br/>The User Demand Management (UDM) device is the responsible of all load management in a house and gives to the user the correct signals to teach him the way for GLMP . The main function of the device is to control the user electricity energy expended, avoiding unexpected increasing of the monthly electricity bill. The UDM device dispenses and counts the electric energy supplied to the user consumption side in an intelligent way, giving an efficient electricity cost management The UDM device is based in a prepaid electricity energy method. One of the great advantages of this system is that electricity is &quot;billed&quot; before it is used. The meter are recharged and the system disconnects the circuit breaker when the credit has expired and will not reconnect until the meter has new credit. The user disposable energy and the reserve energy: A good way to understand how works the UDM device, is making an analogy with the water circuit showed in the figure 3. § § § § The water consumption represents the Contracted Tariff electrical energy and power consumption. The tap in the input tube to first tank is the contracted electricity tariff. The water level in the first water tank represents the User Energy Disposable (UED) electricity. User Energy The second water tank represents the Disposable Energy Reserve (ER) electricity.<br/><br/>Energy Reserve<br/><br/>The UED is permanently incremented as a function of the contracted tariff (input tap). Also the UED slows during user consumption, but in different quantity as function of the energy state (normal, restriction or bonus) When UED is exhausted, user always disposes an additional Energy Reserve (ER), but if this is also exhausted, then the system switch-off the circuit breaker. To restore the electricity<br/>D 12 Project: 20 Energy dispenser prototypes adapted to the requirements of countries CRESMED Responsible: Antoine Graillot<br/><br/>bonus<br/><br/>restriction Energy counter Maximum MSGs Power Date: in target limit Circuit breaker<br/>Page 6/13<br/><br/>17/02/2008<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>power supply, user must wait to retrieve a part of UED. The ER begins to be filled when EUD is full, and it's incremented in a quarter part of the contracted tariff. User consumption Figure 3 ­ Functional scheme of User Demand Management<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 7/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>4 The User Demand Management device<br/>USER MANUAL<br/><br/>The User Demand Management (UDM) Device dispenses and counts the electrical power and energy consumed, and manages in an intelligent way the load consumption in a domestic building. Functions: § The main function of the device is to control the user electricity energy expended, avoiding unexpected increasing of the monthly electricity bill. § Shows clearly the User Energy quantity Disposable, and § Gives clear bonus or restriction indications, helping to the User in GELMP direction.<br/><br/>DISPENSER COUNTER<br/><br/>FEDI<br/><br/>CIRCUIT BREAKER<br/><br/>BUTTON<br/><br/>Figure 4 ­the UDM device<br/><br/>It can be used in every kind of low voltage electrical grid of 230Vac/50Hz. However, the maximum performance of the UDM device is gotten when is connected to the Inverter Central Unit. To dispenses the electricity energy, the user has to insert an especial non-volatile memory card on the device, called &quot;FEDI&quot;. The FEDI includes a the pre-programmed electricity energy tariff, identified in the display of UDM device (see table 1), and includes several parameters as function of tariff chosen: § § § § § Maximum power limit (KW) Assured Disposable Energy for user (Wh/day) Units of Watts hour of Energy disposable increased every 5 minutes Maximum disposable energy (Wh) Additional maximum capacity of reserve (Wh)<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 8/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>TARIFF<br/><br/>DISPLAY IDENTIFIER<br/><br/>POWER LIMIT<br/><br/>ASSURED DISPOSABLE ENERGY<br/><br/>ENERGY INCREASED (every 5min)<br/><br/>MAXIMUM DISPOSABLE ENERGY<br/><br/>ADDITIONAL MAXIMUM RESERVE<br/><br/>TD-8/0,5 TD-17/1,1 TD-25/1,1 TD-33/1,1 TD-33/2,2 TD-50/2,2 TD-67/2,2 TD-67/3,0 TD-84/3,0 TD-100/3,0 TD-134/3,0<br/><br/>T08 T17 T25 T33 T33 T50 T67 T67 T84 TC1 TC3<br/><br/>kW 0,5 1,1 1,1 1,1 2,2 2,2 2,2 3,0 3,0 3,0 3,0<br/><br/>Wh/day 275 550 825 1100 1100 1650 2200 2200 2750 3300 4400<br/><br/>Wh 1 2 3 4 4 6 8 8 10 12 16<br/><br/>Wh 1.100 2.200 3.300 4.400 4.400 6.600 8.800 8.800 9.900 9.900 9.900<br/><br/>Wh 1.100 2.200 3.300 4.400 4.400 6.600 8.800 8.800 9.900 9.900 9.900<br/><br/>Table 1 ­ FEDI disposable tariff options<br/><br/>Special functions for UDM device connected to a bus<br/>The Inverter Central Unit and the Demand Signal Generator device send information about the energy state of the system. With this information, the UDM device provides of restriction and bonus mode: that incentives the user to the use of energy in the most timely moments. § When there is energy surplus in the system, the UDM device enters in bonus mode: in this mode, the UDM device gives an acoustic signal and shows through the display the message blinking &quot;BONUS&quot;. Then for every 2Wh consumed, the UDM device only discounts 1Wh from UED or ER. When there is energy deficit in the system, the UDM device enters in restriction mode: in this mode, the UDM device gives an acoustic signal and shows through the display the message blinking &quot;RESTRICTION&quot;. Then for every 1Wh consumed, the UDM device discounts 2Wh from UED or ER.<br/><br/>§<br/><br/>This special modes don't have effect in the TOTAL counter. Increasing the ER: In bonus mode and when the UED is full, the ER increases as a function of the contracted tariff, not a quarter of this. Intelligent Power limit: When the inverter sends to the UDM device the overload signal, the power limit in the UDM device loads are reduced to half. By this way, only the UDM controlled loads are disconnected in overload situation, protecting the Base Load appliances. Acoustic signals: Entering or exiting from special modes bonus and restriction, the user can hear and acoustic signal., allowing and efficient user load management.<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 9/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>5 Installation<br/>The UDM device is formed by a base meter with 6 connecting terminals, a display, a pushbutton and a connector slot, where FEDI is inserted. Usually the UDM device is mounted in a standard electrical 35mm DIN-RAIL box, behind a circuit breaker. It should be installed in a place accessible and visible to the user. The terminals (FD), (FU), (N D), (N U) are the inputs and outputs of 230VAC current. The terminals (+) and (-) are the inverter Central Unit communications bus. The UDM device can work without communications bus, but in this case some functions are not available.<br/><br/>6 Connection<br/>Warning: it's important to assure the polarity in communications bus and low voltage line (phase and neutral) UDM device and circuit breaker comes with a preinstalled connection. 1. Verify that (FU) and (N U) are well connected to circuit breaker behind UDM device: (FU) : User's Phase (N U): User's Neutral 2. Connects the inverter communications bus, respecting the polarity. 3. Connects the user's 230VAC distribution line to the upper part of circuit breaker. 4. Connect the inputs (FD) and (N D) to the 230VAC distribution line. Be Careful! It's very important to respect the polarity Phase / Neutral (it could produce a breakdown). (FD) : distribution line Phase (N D): distribution line Neutral 5. The inverter Neutral and Phase are connected to the distribution line. To check if the polarity (Phase/Neutral) it's OK, switch off the circuit breaker in a inverter side and the domestic building general circuit breaker and test the continuity between Neutral line from inverter to UDM device.<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 10/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>CIRCUIT BREAKER DISPLAY FEDI<br/><br/>CIRCUIT BREAKER FOR USER LOADS<br/><br/>JUMPER<br/><br/>+<br/><br/>bus PHASE NEUTRAL<br/><br/>N<br/><br/>P<br/><br/>P<br/>LINE 2 USER LOADS<br/><br/>N<br/><br/>LINE 1<br/><br/>To INVERTER<br/><br/>ATTENTION ! :<br/>IT'S VERY IMPORTANT TO RESPECT THE ORDER OF PHASE AND NEUTRAL LINES.<br/><br/>Figure 5 ­ UDM device connections<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 11/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>7 Getting on<br/>a. Verify the cable connection with Inverter: Before to power on the Inverter, be sure the correct connection of Phase/Neutral lines. b. Line connection an Power ON the UDM device: When the 230VAC is connected in the display of UDM device appears the message &quot;INSERT FEDI&quot;. If doesn't appear any message, check the power line connections. When we insert the FEDI (see figure 6), the display shows the tariff (see Table 1). Please, insert the FEDI carefully, without force. c. Verify the counter: Verify that, when a load consumption is connected to the UDM device output, the User Energy Disposable (UED) decreases and the total (TOTAL) increases If not, check the FEDI connection and verify that Neutral lines (Distribution and User) are not inverted. d. Verify the energy supply interruption: Verify that, taking out the FEDI, the power supply of UDM device is interrupted. e. Verify the reading of inverter Central Unit Signals: Configure the battery SOC index to 5%. Verify that UDM device change to the restriction mode. Restore the correct original value and the restriction mode disappears. If the UDM device doesn't change the mode, chack the bus connections (polarity, quality of signal). .<br/><br/>Incorrect<br/><br/>Correct<br/><br/>Figure 6: Insert the FEDI to the UDM device.<br/><br/>D 12 Project:<br/><br/>20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 12/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries<br/><br/><br/>8 Technical Characteristics<br/>Power Supply Maximum Current Capacity of total Energy Meter Resolution of meters Maximum capacity of available energy and reserve. Increase of virtual energy Precision of energy measurement (cos=1) Precision of measurement at 5% Pnom. Offset - stability Precision of calculation of cos (0,2&lt;cos&lt;1) Self-consumption Protection Operation temperature Humidity Size of the case with junction bar included (mountable on standard DIN rail) 230V± 10% c.a. 50/60 Hz 230V: 15 A 100 MWh (8 digit) 1 Wh Depending on tariff (see table 1) Depending on tariff (see table 1) ± 1% (P&gt;200 W) ± 3% -3W &lt; -1W adjusted to ­2W (0.2 &lt; cos &lt; 1) ± 5% &lt;1 W IP31 0ș a 50șC 0% to 99% without condensation Width 180mm / Height 145mm Depth 59mm<br/><br/>Table 2 ­User Demand Management device technical specs<br/><br/>Figure 7 ­ The UDM device installed on TTA laboratory<br/>D 12 Project: 20 Energy dispenser prototypes adapted to the requirements of MSGs in target Date: 17/02/2008 countries CRESMED Responsible: Antoine Graillot Page 13/13<br/><br/>Work Package : 3 ­ 20 Energy dispenser prototypes adapted to the requirements of MSGs in target countries