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This paper takes the "Operation Rules of photovoltaic Power Station involving the grid" of Tianjin as an example to introduce the process of photovoltaic power station involving the grid and the information required for each process.

A project reform record:

Photovoltaic enterprises should truthfully provide a project profile when filing the project, including the project name (unified specification is: The project unit is referred to as + construction site + record scale + "photovoltaic power generation project"), the investment body, the construction scale and total investment, the construction site, the building relied on and the implementation situation (land implementation situation), the land area and nature, the power generation mode (all self-use, self-use surplus electricity online, full Internet access), key technologies, the planned opening (completion) time, etc. And make clear the above main contents in the filing application form.

Two access system scheme:

Construction units with relevant information to the State Grid Tianjin Electric Power Company Economic and Technological Research Institute (hereinafter referred to as the "Economic Research Institute") to apply for acceptance of the proposed photovoltaic project network connection scheme, the required information basically includes:

The original and copy of the ID card of the agent and the original of the power of attorney of the legal person (or the original and copy of the ID card of the legal representative);

Enterprise legal person business license, land certificate and other project legitimacy supporting documents;

The geographical location map of the project (indicating the direction, adjacent roads, rivers, etc.) and the site rental agreement;

Project feasibility study report; The competent government investment department agrees to the approval of the preliminary work of the project (the project needs to be approved).

After acceptance, the economic research Institute shall formulate an access system plan after on-site investigation.

Three access system approval:

The project owner with the access system plan issued by the research Institute to the State Grid Tianjin Electric Power Company (hereinafter referred to as the "Municipal Bureau") development department dedicated review, access system approval.

Four electricity price approval reply:

The project owner shall submit the electricity price approval application documents to the Price and Fee section of the Price Bureau, and provide relevant information as required (basically including the project application report, the NDRC filing documents, the access system approval, the project plan opening/completion time, etc.).

V. Preliminary Design Review:

The project owner shall submit the feasibility study report, access system scheme, access system approval and preliminary design drawings to the Marketing Department of the Municipal Bureau to apply for organizing the preliminary review meeting. The construction design blueprint drawn by the design institute must be consistent with the spirit of the Preliminary Design Review Opinions, and the project owner shall organize the bidding, procurement, construction and other work matters of the photovoltaic power station in accordance with the construction design drawings.

Six access substation interval transformation, transmission line construction:

The project owner brings the business license, NDRC filing documents, access system approval, preliminary design review comments, construction drawings and primary system drawings (design blueprint) to the special office of the Transportation and Inspection Department to fill in the "Photovoltaic power generation project grid-connected Application Form". After acceptance, the infrastructure Office of the district power supply Branch shall arrange the substation spacing and line construction and other related matters. The project owner assists the power grid enterprises in carrying out the feasibility study and design of the transmission project, and jointly promotes the synchronous construction and operation of the transmission project and the photovoltaic power generation project.

Seven project quality supervision declaration:

The construction unit must register and declare the project as required before the project starts. When applying, it should meet the following requirements: the project has obtained the government's approval (approval) construction documents, the survey, design, construction and supervision units have completed the bidding, the main management personnel of each project department of the construction unit has been in place, and the relevant testing units have been identified. Construction units to Tianjin Electric Power Construction engineering Quality Supervision Central Station (hereinafter referred to as the "quality supervision station") to submit the "Power project quality supervision registration declaration" for declaration.

Eight project quality supervision registration:

Construction units with "power engineering quality supervision registration Declaration", approval documents, survey, design, construction, commissioning, supervision units of the copy of the qualification certificate, survey, design, construction, commissioning, supervision units of the main management of the copy of the corresponding qualification certificate, to the quality supervision station for formal registration. If the requirements are met, the quality supervision station issues the Registration Certificate of Power Engineering Quality Supervision and the Power Engineering Quality Supervision and Inspection Plan.

9 First and Civil engineering quality supervision and inspection:

After the completion of the infrastructure construction of the project, the project owner can apply for the quality inspection station to arrange the quality supervision and inspection of the first and civil engineering stage, including the physical inspection of the project and the inspection of engineering data. The engineering entity is mainly civil construction, steel structure installation and construction, covering foundation, main structure, decoration, building roof, water supply and drainage heating, building electrical, intelligent building, ventilation and air conditioning and other branches; Engineering data mainly include: project supporting documents and project quality management documents. If the acceptance requirements are met, the Notice of Power Engineering Quality Supervision and Inspection Transfer is issued, and the project enters the next stage of the process.

Ten dispatch naming number:

When the construction of the electrical part of the photovoltaic power station and the outgoing line is basically completed or the unfinished part is not much different from the drawing, the project owner will apply for the preparation of the "Primary System Drawing of xx Photovoltaic Power Station for Dispatch" with the access system plan, access system approval, electrical construction drawings, main equipment list, equipment random data, etc., and the deputy director of the control Center of the Municipal Bureau (Wang Hailin). Wang drew up a sketch. The sketch shall be drawn into the official CAD version and sent to the Mode team of the Control center of the Municipal Bureau, the deputy director of the control center, etc., and take effect after approval. The Primary System Diagram of Dispatching xx photovoltaic Power Station will be sent to the relevant departments of the municipal company and the district/branch company, and sent to the project owner in the form of email, that is, the scheduling naming number.

11 Customs form application:

The project owner shall, with the approval of the access system of the development and policy Department and the dispatch naming number, declare the customs entry form at the trading center of the Municipal Bureau (Penal Service Department), and transfer the information to the development and Policy Department after the examination of the customs entry materials. (Materials required: 1. Gateway energy metering design drawing 2. Scheduling, naming and numbering; 3, photovoltaic power station booster station primary system diagram; 4. Access system scheme; 5, access system approval.)

Twelve communication systems:

After the line is connected, the construction unit shall apply to the automation Special Office for arranging access to the scheduling data network, opening the scheduling telephone and communication debugging with the approval of the access system and the scheduling naming number.

Thirteen relay protection setting values:

The construction unit shall provide specifications and drawings of the protective equipment. The protection of the new interval in the substation and the setting value of the optical fiber differential protection of the outgoing line (hereinafter referred to as "optical differential protection") are responsible for the county power supply company. In addition to the out-of-step protection of the photovoltaic power station is given by the protection team of the planning Department of the Municipal Bureau, the rest of the protection values are calculated by the project owner, and all new and changed protection values need to be submitted to the Municipal Bureau (mode team) for record review, and signed to confirm.

14 Remote information and communication address:

The project owner provides the PV power station network topology diagram, secondary equipment list (manufacturer, model), and "XX PV Power Station remote-motion Information Sample Table" to the Municipal Bureau Automation. According to the above documents, the XX Photovoltaic Power Station telemetry Information Table is specially prepared, which mainly includes telemetry, remote control, remote control, AGC remote communication, AGC telemetry, AGC remote modulation and optical power prediction. After the data review is complete, the automation is specially prepared and sent to the project owner the "data network communication Address Table" and "XX photovoltaic Power Station remote Information Table" related to the new photovoltaic power station. At the same time, the municipal bureau and county-level power supply companies began to build their own background within the scope of regulation.

Fifteen differential protection debugging, scheduling data network debugging:

After the completion of optical cable laying and optical fiber welding, the channel can be tested through the lighting, and the county power supply company can apply for commissioning, and the maintenance staff on duty can be arranged to carry out optical difference protection and scheduling data network debugging together with various manufacturers and test personnel.

Sixteen remote modulation:

After completing the commissioning of the photovoltaic power station, the construction of the power supply company's background, the commissioning of the dispatching data network, and the establishment of communication between the telecontrol device and the main station, you can apply for telecontrol joint adjustment. After the application is approved, the power supply company will inform the project owner of the contact phone number of the dispatch duty room (dispatch line or encrypted landline). The project owner will give the contact information to the backstage manufacturer and the person in charge of the site debugging, and then start the telecontrol information joint adjustment. (AGC has basic debugging before grid-connection, and then formal debugging after grid-connection).

17 Quality supervision and inspection before grid connection start trial operation:

That is, after the completion of construction, installation and commissioning, the quality supervision and acceptance before the grid connection. This is the most stringent, also divided into engineering entity acceptance and engineering data acceptance, covering lightning protection and grounding, electrical equipment construction quality, electrical five prevention inspection, fire facilities and records, safety electrical protection supplies and appliances and other solid engineering, It also emphasizes the test report, operation plan, operation specification, emergency plan, organization, operation and maintenance personnel certificates and other certificates and measures to ensure safe operation, and generally focuses more on electrical professional. The quality supervision station issued the "Power engineering Quality supervision and inspection expert Opinion" (including rectification items, expert opinions of the acceptance team, etc.), after the rectification meets the requirements, the quality supervision station issued the "Power engineering quality supervision and inspection grid-connected Notice".

18 Grid-connected preparatory meeting:

After completing all infrastructure construction, electrical debugging and remote joint adjustment, and after the quality supervision station issues the documents of quality supervision, inspection and acceptance, the project owner issues an invitation letter to the departments of the municipal bureau and the county power supply company to participate in the grid-connected preparatory meeting. The first is to summarize all the issues closely related to the grid connection, and the second is to discuss the power inspection of the power station.

19 High voltage electricity inspection:

The project owner provides relevant information (electrical test report, electrical construction drawings, equipment random data, etc.) to the Marketing Department before the grid-connected acceptance. After the information is complete, the control center organizes various departments of the company and the county company to check the electricity consumption of the photovoltaic power station, and issues a rectification report on the on-site inspection and summary of all problems, which is in essence the grid-connected pre-acceptance.

20 Personnel Training:

After the pre-acceptance, the control center is responsible for centralized training of operation and maintenance personnel at the photovoltaic power station site, checking the network access license of high-voltage electricians, and issuing the scheduling contact list file.

21 Grid connection review and acceptance:

The project owner must complete all the problems after rectification, and then carry out the re-acceptance. Such as the city, district/branch inspection department issued by the substation new interval one, two equipment and line acceptance report, the power supply company Marketing Department issued a unified acceptance report - "xx photovoltaic power station acceptance opinion", and clearly stated that the power station passed the inspection and acceptance, can be put into operation.

22 Power acquisition terminal:

Apply to the Special Office of Automatic Power Measurement for Dispatching of the Municipal Bureau (Li Hua) for the test of power collection terminal - the main station of the Municipal Bureau (Beijing Yubang). The project owner should fill in the "XX Power Station Electricity Information Sample Table" according to the actual situation.

Twenty-three gate meter installation:

With reference to the Technical Data of Pre-operation Acceptance of the Gateway Energy Metering System, the development department, trading center and metrology Department of the municipal Bureau and county power supply company shall, after passing the on-site acceptance, install the metering gateway table for the project owner by the outgoing/sub-power supply company.

Other documents required before signing the Agreement:

The Power Technology Center of the Power Science and Technology Research Institute of State Grid Tianjin Electric Power Company issued the "XX photovoltaic Power Station grid-connected Testing Project" and the "XX photovoltaic Power Station grid-connected testing technology Program"; The "Communication Operation and Maintenance Technical Service Contract" signed with Tianjin Jintelecom Technology Co., LTD.; Approved by the power company, "XX photovoltaic power station backward power supply scheme" and "XX photovoltaic Power Station grid-connected start-up scheme"; "xx photovoltaic power station typical operation ticket".

25 Agreement signed:

With the "xx photovoltaic power Station acceptance Opinions" and the documents listed in Article 24, the construction unit has signed the "Electricity purchase and sale Contract" and the "grid-connected scheduling Agreement" (required information: scheduling naming number, personnel list, fixed telephone) to the municipal Bureau, and then the construction unit and the project power supply company signed the "scheduling agreement" (dual power users). After the three contracts are complete, apply to the Municipal Bureau for the grid-connected start-up meeting.

26 Grid Connection kick-off Meeting:

The control center of the Municipal Bureau is responsible for arranging the meeting time, place, participants, etc., making the final strategic deployment for backward power supply and grid connection, and arranging the time point of backward power supply and grid connection operation in detail.

Twenty-seven votes:

In accordance with the time point of backward power transmission and grid-connected operation formulated at the grid-connected start-up meeting and the agreement of the "Scheduling Agreement" signed, the construction unit submitted to the control center the "XX photovoltaic power Station start-up grid-connected commissioning application ticket", that is, the scheduling operation ticket.

28 reverse power supply and direction finding with load:

The transportation and inspection department of the county electric power company is responsible for sending it to the XX photovoltaic power station outlet cabinet. When the construction unit shocks its own high-voltage equipment in the photovoltaic station, it needs to impact the reactive power compensation device such as SVG first and put it into operation with load to test the correctness of the protection action of light difference and mother difference. After the completion of load direction finding, the construction unit completes the impact of the remaining high voltage equipment in accordance with the dispatching instruction until the AC side switch of the grid-connected inverter (Note: the inverter is not fired, and the box-type booster substation is running on the line).

29 Grid start-up:

After the power is sent back to the box-type step-up substation for 24 hours of live safe operation, apply to the municipal control center to start grid-connected inverters one by one and put them into photovoltaic power generation units.

Commissioning and testing after grid connection:

Photovoltaic area operation background configuration and debugging (including scheduling to the point); AGC/AVC debugging (including scheduling to the point); According to the above - "XX photovoltaic Power Station grid-connected Detection and Test Project" and "XX photovoltaic Power Station grid-connected detection technology Scheme", the relevant grid-related tests are completed by the Institute of Electrical Science and Technology.

Thirty-one power metering point acceptance:

With reference to the Technical data on the acceptance of the Gateway electric energy metering System after operation, the State Grid Tianjin Electric Power Company submitted the Application for the acceptance of the Gateway electric energy metering point of xx Power Station. The municipal bureau and county power supply company arranged the development department, trading center, Marketing Department, metrology department and other professionals to carry out on-site acceptance, and issued an acceptance report, which is one of the supporting documents for the power station to be transferred to commercial transportation.

32 Quality supervision final inspection:

That is, completion acceptance. If the requirements for completion acceptance are met, the person in charge of the construction unit (project) shall organize the person in charge of the construction (including subcontracting), design, supervision and other units (project) to carry out the completion acceptance. The quality supervision station shall conduct on-site supervision on the organizational form, acceptance procedures and implementation of acceptance standards of the project completion acceptance. After the completion and acceptance, the certificate of the completion and acceptance report issued by the quality supervision station is one of the key documents for handling the power business license (power generation class).