Internal/HEM Meetings - Revision history

Hasmas at 14:36, 12 January 2016

2016-01-12T14:36:36Z

Hasmas at 14:35, 12 January 2016

2016-01-12T14:35:33Z

Hasmas at 14:33, 12 January 2016

2016-01-12T14:33:31Z

Hasmas at 14:12, 12 January 2016

2016-01-12T14:12:34Z

Hasmas at 14:02, 12 January 2016

2016-01-12T14:02:41Z

Hasmas at 11:31, 12 January 2016

2016-01-12T11:31:33Z

Hasmas at 11:30, 12 January 2016

2016-01-12T11:30:54Z

Hasmas at 11:28, 12 January 2016

2016-01-12T11:28:38Z

Hasmas at 13:09, 1 March 2015

2015-03-01T13:09:50Z

Hasmas at 18:49, 31 January 2015

2015-01-31T18:49:29Z

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 ;'''Eltel had suggested two options according to our questions:'''
 . Perform memory configuration on all generation 3+ meters. One data set for billing purposes and one for analysis purposes.
 . Exclude all generation 3+ meters which are being billed on load profile data.

@@ Line 2: / Line 2: @@
 ;'''The following document had been sent to Eltel and discussed during the meeting:'''
 In order to collect more information about HEM’s distribution network especially from delivery points, we would like to change load profile of the meters without affecting the communication network and available database.  This information would allow us to receive more data in shorter intervals about the power quality at the end point of the distribution network. In this case, we have some discussion topics and would be happy if you can help us.
 . We would like to change load profile, time intervals, and alarm threshold in meters and collect more data. At the moment, if we change a meter’s load profile from NES system, it seems that the meter is re-configured correctly but from the “Powel system ELIN” we have problem in receiving data from additional channels. We do not know if it is the problem in NES or ELIN or the way we are re-configuring the meters.

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		+	== '''Phone Meeting with Eltel and HEM on 2015 Apr 22''' ==
		+	;'''The following document had been sent to Eltel and discussed during the meeting:'''
		+	In order to collect more information about HEM’s distribution network especially from delivery points, we would like to change load profile of the meters without affecting the communication network and available database. This information would allow us to receive more data in shorter intervals about the power quality at the end point of the distribution network. In this case, we have some discussion topics and would be happy if you can help us.
		+	1. We would like to change load profile, time intervals, and alarm threshold in meters and collect more data. At the moment, if we change a meter’s load profile from NES system, it seems that the meter is re-configured correctly but from the “Powel system ELIN” we have problem in receiving data from additional channels. We do not know if it is the problem in NES or ELIN or the way we are re-configuring the meters.
		+
		+	2. How short can we select the intervals without affecting the communication network (because of the increase of data which needed to be transmitted). The same scenario for the load profile data, how much data we can receive? All the 16 channels? How this would affect the long term storage?
		+
		+	3. We would like to change the intervals without affecting the billing system (V-store K+). For example, we would like to receive data every 15 minutes from smart meters but we want to have the billing system works based on daily measurements, according to the customers’ contract. What would be the best way to do that?
		+
		+	4. Can we receive smart meters data directly from NES without affecting other systems?
		+
		+	5. In ELIN system, when we call for the alarm data, it does not show the information of all the meters. For example, in a very recent failure, among more than 6000 customers facing blackout, only 10 of them recorded “Power Outage, start” in alarm data base in ELIN. However, the alarm data in NES system was correct for all the meters.
		+
		+	6. As soon as a meter generates an alarm signal we would like to be able to have access to the information. How can we receive alarm data in real time?
		+
		+	7. Is it possible to ping all the meters and check for acknowledgement? Does it affect other systems?
		+
		+	8. How much data is available in NES that is not accessible in ELIN?
		+
		+	9. Do you have any ideas and/or suggestions of how the smart meters (or other available systems, e.g., NES, ELIN, etc.) can be used to increase reliability? How can we use smart meters for measuring power quality?
		+	Our requirements are:
		+	* To be able to collect additional data from the meters without interfering with other systems
		+	* To be able to alter the settings on the smart meters as required (we might have to do this a few times)
		+	* To be able to receive the alarm data as soon as they are generated by the meters
		+
		+
		+	;'''Eltel had suggested two options according to our questions:'''
		+	1. Perform memory configuration on all generation 3+ meters. One data set for billing purposes and one for analysis purposes.
		+	2. Exclude all generation 3+ meters which are being billed on load profile data.
		+
		+	;'''Outcomes of the meeting:'''
		+	* Schedule the next meeting with Eltel
		+	* Determine the population of meters to be reconfigured
		+	* Decision for what option to select for the meter configuration
		+	* Estimate for Custom Development for configuring, processing, parsing and storing analysis data (Eltel should do this part)
		+
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		+	== '''Meeting on 2015 Mar 26''' ==
		+	We discussed about underground failure rate estimation and the important factors that have to be considered e.g. age and length of the cables. HEM also mentioned that joints are the weakest point in the underground cables and cause lots of failure; therefore, they should also be considered.
		+
		+	The next topic was about setting up a meeting with Eltel company some time in Apr. Before the meeting Hassan needs to prepare some question and send to the company to give them some idea of what we are going to discuss about.
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	== '''HEM's board (Halmstad Kommun) presentation 2015 Feb 19''' ==		== '''HEM's board (Halmstad Kommun) presentation 2015 Feb 19''' ==
	The title of the presentation was "Data Mining for Smart Power Grids". The presentation is summarized in the following.		The title of the presentation was "Data Mining for Smart Power Grids". The presentation is summarized in the following.

← Older revision		Revision as of 14:12, 12 January 2016
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		+	== '''HEM's board (Halmstad Kommun) presentation 2015 Feb 19''' ==
		+	The title of the presentation was "Data Mining for Smart Power Grids". The presentation is summarized in the following.
		+
		+	We are employing a number of machine learning and data analysis algorithms to extract relevant information from available data. We investigate three aspects: predictive maintenance, i.e., discovering and anticipating faults before they become serious problems, load forecasting, i.e., estimating
		+	future energy consumption, and customer clustering, i.e., finding similarities between energy consumption patterns of different users.
		+
		+	The main focus of the project is predictive maintenance, and we are currently pursuing several directions of data analysis. They are all interesting and important for the goals of the company, but differ in their focus.
		+
		+	First direction is fault analysis, which consists of investigating different types of failures, finding out causes of their occurrences, as well as evaluating their importance and defining which data is required for predicting them. We look at questions such as: “which types of faults are most significant,” and “on which methods should we focus to predict them.” For example, if a fuse in a substation or underground cable fails, it is important to investigate the cause of the failure, its effects on the grid as a whole, the number of disconnected customers, and the possible methods to prevent similar problems in the future.
		+
		+	The second direction is history-based maintenance, which is based on analyzing the historical information of the network as a whole, or of parts of the network characterized by similar components, usage and external conditions. The goal is to determine the expected lifetime of various assets, often using probabilistic models. This can be used for planning replacement or maintenance operations, in order to prevent faults. This type of analysis can also be called preventive maintenance. For example, we can use historical data of fuses or cable faults in a particular location to recommend replacements after 8 years, even though information from the manufacturer suggests an expected lifetime of 10 years.
		+
		+	The third direction is symptom-based maintenance, which is based on analyzing sensor readings measuring the operation of individual grid components. Signal analysis techniques allow us to use available data, collected from smart meters and other sensors distributed on the grid, to distinguish between assets that are in good condition from those that are starting to reveal fault symptoms. This allows us to base maintenance and replacement operations not only on historical predictions, but also on the current status of the network. For example, by monitoring the energy loss in a fuse or a cable, we may discover fault symptoms building up, before the asset stops working.
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	== '''Meeting on 2015 Feb 13''' ==		== '''Meeting on 2015 Feb 13''' ==
	In this meeting we mainly discussed about the presentation for HEM’s board (Halmstad Kommun) meeting. Hassan received some comments about the slides and the key objective of the project that should be underlined.		In this meeting we mainly discussed about the presentation for HEM’s board (Halmstad Kommun) meeting. Hassan received some comments about the slides and the key objective of the project that should be underlined.

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 == '''Meeting on 2015 Jan 19''' ==
 In this meeting we discussed the following issues:
 * HEM mentioned the plan of adding 10 quality measurements for 10 sub-stations. They asked us to provide some suggestions on where we would like to have these measuring devices.

@@ Line 6: / Line 6: @@
 * HEM mentioned that it is possible for them to measure a suspected to failure cable in order to find the weak spot. They currently do this kind of measurement after a failure happens in a cable to localize the broken part.
 * Hassan needs to prepare a presentation about the current state of the project and present it for the HEM’s board (Halmstad Kommun). The meeting will be at 19th of February.
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← Older revision		Revision as of 11:28, 12 January 2016
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		+	== '''Meeting on 2015 Jan 19''' ==
		+
		+	In this meeting we discussed the following issues:
		+	* HEM mentioned the plan of adding 10 quality measurements for 10 sub-stations. They asked us to provide some suggestions on where we would like to have these measuring devices.
		+	* We have the possibility to setup a meeting with Eltel Company who is responsible for upgrading the smart meters database. At the initial phase the company wanted to do some upgrade on 16 Feb and after that we can have the meeting.
		+	* HEM mentioned that it is possible for them to measure a suspected to failure cable in order to find the weak spot. They currently do this kind of measurement after a failure happens in a cable to localize the broken part.
		+	* Hassan needs to prepare a presentation about the current state of the project and present it for the HEM’s board (Halmstad Kommun). The meeting will be at 19th of February.
		+
		+
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	== '''Meeting on 2014 Nov 18''' ==		== '''Meeting on 2014 Nov 18''' ==
	In this day the meeting was held in two sessions. The first session was the continuous of the regular monthly meeting with HEM, and the second one devoted to meeting with steering committee regarding to Hassan’s PhD project plan.		In this day the meeting was held in two sessions. The first session was the continuous of the regular monthly meeting with HEM, and the second one devoted to meeting with steering committee regarding to Hassan’s PhD project plan.

@@ Line 4: / Line 4: @@
 ;'''Session 1:'''
-In this part, Alexander informed us that by the beginning of 2015, ELTEl Company, who is the support company for smart meters, will update the scripts of the managing and modifying software for meters and data concentrators. Also, he said Hassan needs to present his project plan for inner board members of HEM in 19th of Feb.
+In this part, Alexander informed us that by the beginning of 2015, ELTEL Company, who is the support company for smart meters, will update the scripts of the managing and modifying software for meters and data concentrators. Also, he said Hassan needs to present his project plan for inner board members of HEM in 19th of Feb.
 During the rest of the meeting, the content of the project plan was discussed with Alexander and Peter.

← Older revision		Revision as of 18:49, 31 January 2015
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		+	== '''Meeting on 2014 Nov 18''' ==
		+	In this day the meeting was held in two sessions. The first session was the continuous of the regular monthly meeting with HEM, and the second one devoted to meeting with steering committee regarding to Hassan’s PhD project plan.
		+
		+
		+	;'''Session 1:'''
		+	In this part, Alexander informed us that by the beginning of 2015, ELTEl Company, who is the support company for smart meters, will update the scripts of the managing and modifying software for meters and data concentrators. Also, he said Hassan needs to present his project plan for inner board members of HEM in 19th of Feb.
		+	During the rest of the meeting, the content of the project plan was discussed with Alexander and Peter.
		+
		+
		+	;'''Section 2:'''
		+	In this session, Hassan described his project plan during the next 4.5 years. Antanas Verikas, Stefan Byttner from Halmstad University, Robert Bass from Portland State University, and Ulf Johansson from Borås University were invited as Hassan’s support committee members.
		+	The project plan entitled with “Mining Heterogeneous Data to Improve Reliability and Efficiency of Energy Distribution in Smart Grids” and discussed:
		+	*The motivation of the project (problems from HEM’s perspective),
		+	*Scientific problems in the field of project,
		+	*Resources,
		+	*Methodologies, and
		+	*Goals
		+
		+	Predictive maintenance considered as the most important issue in the project. Predictive maintenance, which addresses problems before they escalate, contains data mining and signal analysis techniques on available data collected from smart meters and other sensors distributed on the grid to predict when maintenance should be performed.
		+	Hassan received very helpful feedbacks from steering committee, and the next update of the project plan was scheduled (May 2015).
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	== '''Meeting on 2014 Oct 24''' ==		== '''Meeting on 2014 Oct 24''' ==
	This meeting devoted to the historical failure at HEM’s electricity distribution network. The discussions were based on a document which Hassan had provided. In the following this document is attached:		This meeting devoted to the historical failure at HEM’s electricity distribution network. The discussions were based on a document which Hassan had provided. In the following this document is attached: